db-snapshot: propagate any node snapshot error through RPC call

In particular, it means that "garage meta snapshot --all" will get an exit code of 1 if any node fails to snapshot. This makes sure that any external tool trying to snapshot nodes (e.g. from cron) will be aware of the failure. Fix #920
db-snapshot: Fix error reporting when using "garage meta snapshot --all"
2025-01-27 18:33:36 +01:00 · 2025-01-27 18:33:36 +01:00
88 changed files with 8557 additions and 1997 deletions
--- a/.cargo/config.toml
+++ b/.cargo/config.toml
@ -0,0 +1,3 @@
+[target.x86_64-unknown-linux-gnu]
+linker = "clang"
+rustflags = ["-C", "link-arg=-fuse-ld=mold"]
--- a/.woodpecker/debug.yaml
+++ b/.woodpecker/debug.yaml
@ -16,21 +16,32 @@ steps:
  - name: build
    image: nixpkgs/nix:nixos-22.05
    commands:
-      - nix-build -j4 --attr flakePackages.dev
+      - nix-build --no-build-output --attr pkgs.amd64.debug --argstr git_version ${CI_COMMIT_TAG:-$CI_COMMIT_SHA}

-  - name: unit + func tests (lmdb)
+  - name: unit + func tests
    image: nixpkgs/nix:nixos-22.05
+    environment:
+      GARAGE_TEST_INTEGRATION_EXE: result-bin/bin/garage
+      GARAGE_TEST_INTEGRATION_PATH: tmp-garage-integration
    commands:
-      - nix-build -j4 --attr flakePackages.tests-lmdb
-
-  - name: unit + func tests (sqlite)
-    image: nixpkgs/nix:nixos-22.05
-    commands:
-      - nix-build -j4 --attr flakePackages.tests-sqlite
+      - nix-build --no-build-output --attr pkgs.amd64.debug --argstr git_version ${CI_COMMIT_TAG:-$CI_COMMIT_SHA}
+      - nix-build --no-build-output --attr test.amd64
+      - ./result/bin/garage_db-*
+      - ./result/bin/garage_api-*
+      - ./result/bin/garage_model-*
+      - ./result/bin/garage_rpc-*
+      - ./result/bin/garage_table-*
+      - ./result/bin/garage_util-*
+      - ./result/bin/garage_web-*
+      - ./result/bin/garage-*
+      - GARAGE_TEST_INTEGRATION_DB_ENGINE=lmdb ./result/bin/integration-* || (cat tmp-garage-integration/stderr.log; false)
+      - nix-shell --attr ci --run "killall -9 garage" || true
+      - GARAGE_TEST_INTEGRATION_DB_ENGINE=sqlite ./result/bin/integration-* || (cat tmp-garage-integration/stderr.log; false)
+      - rm result
+      - rm -rv tmp-garage-integration

  - name: integration tests
    image: nixpkgs/nix:nixos-22.05
    commands:
-      - nix-build -j4 --attr flakePackages.dev
+      - nix-build --no-build-output --attr pkgs.amd64.debug --argstr git_version ${CI_COMMIT_TAG:-$CI_COMMIT_SHA}
      - nix-shell --attr ci --run ./script/test-smoke.sh || (cat /tmp/garage.log; false)
-    depends_on: [ build ]
--- a/.woodpecker/release.yaml
+++ b/.woodpecker/release.yaml
@ -18,12 +18,13 @@ steps:
  - name: build
    image: nixpkgs/nix:nixos-22.05
    commands:
-      - nix-build --attr releasePackages.${ARCH} --argstr git_version ${CI_COMMIT_TAG:-$CI_COMMIT_SHA}
+      - nix-build --no-build-output --attr pkgs.${ARCH}.release --argstr git_version ${CI_COMMIT_TAG:-$CI_COMMIT_SHA}

  - name: check is static binary
    image: nixpkgs/nix:nixos-22.05
    commands:
-      - nix-shell --attr ci --run "./script/not-dynamic.sh result/bin/garage"
+      - nix-build --no-build-output --attr pkgs.${ARCH}.release --argstr git_version ${CI_COMMIT_TAG:-$CI_COMMIT_SHA}
+      - nix-shell --attr ci --run "./script/not-dynamic.sh result-bin/bin/garage"

  - name: integration tests
    image: nixpkgs/nix:nixos-22.05
--- a/Cargo.lock
+++ b/Cargo.lock
--- a/Cargo.nix
+++ b/Cargo.nix
--- a/Cargo.toml
+++ b/Cargo.toml
@ -8,10 +8,7 @@ members = [
 	"src/table",
 	"src/block",
 	"src/model",
-	"src/api/common",
-	"src/api/s3",
-	"src/api/k2v",
-	"src/api/admin",
+	"src/api",
 	"src/web",
 	"src/garage",
 	"src/k2v-client",
@ -24,10 +21,7 @@ default-members = ["src/garage"]

 # Internal Garage crates
 format_table = { version = "0.1.1", path = "src/format-table" }
-garage_api_common = { version = "1.0.1", path = "src/api/common" }
-garage_api_admin = { version = "1.0.1", path = "src/api/admin" }
-garage_api_s3 = { version = "1.0.1", path = "src/api/s3" }
-garage_api_k2v = { version = "1.0.1", path = "src/api/k2v" }
+garage_api = { version = "1.0.1", path = "src/api" }
 garage_block = { version = "1.0.1", path = "src/block" }
 garage_db = { version = "1.0.1", path = "src/db", default-features = false }
 garage_model = { version = "1.0.1", path = "src/model", default-features = false }
@ -52,6 +46,7 @@ chrono = "0.4"
 crc32fast = "1.4"
 crc32c = "0.6"
 crypto-common = "0.1"
+digest = "0.10"
 err-derive = "0.3"
 gethostname = "0.4"
 git-version = "0.3.4"
@ -64,7 +59,7 @@ ipnet = "2.9.0"
 lazy_static = "1.4"
 md-5 = "0.10"
 mktemp = "0.5"
-nix = { version = "0.29", default-features = false, features = ["fs"] }
+nix = { version = "0.27", default-features = false, features = ["fs"] }
 nom = "7.1"
 parse_duration = "2.1"
 pin-project = "1.0.12"
@ -141,6 +136,8 @@ thiserror = "1.0"
 assert-json-diff = "2.0"
 rustc_version = "0.4.0"
 static_init = "1.0"
+
+aws-config = "1.1.4"
 aws-sdk-config = "1.13"
 aws-sdk-s3 = "1.14"

--- a/2
+++ b/2
@ -3,5 +3,5 @@ FROM scratch
 ENV RUST_BACKTRACE=1
 ENV RUST_LOG=garage=info

-COPY result/bin/garage /
+COPY result-bin/bin/garage /
 CMD [ "/garage", "server"]
--- a/13
+++ b/13
@ -1,10 +1,13 @@
-.PHONY: doc all run1 run2 run3
+.PHONY: doc all release shell run1 run2 run3

 all:
-	clear
-	cargo build \
-		--config 'target.x86_64-unknown-linux-gnu.linker="clang"' \
-		--config 'target.x86_64-unknown-linux-gnu.rustflags=["-C", "link-arg=-fuse-ld=mold"]' \
+	clear; cargo build
+
+release:
+	nix-build --attr pkgs.amd64.release --no-build-output
+
+shell:
+	nix-shell

 # ----

--- a/default.nix
+++ b/default.nix
@ -3,22 +3,46 @@
 with import ./nix/common.nix;

 let
-  pkgs = import nixpkgs { };
+  pkgs = import pkgsSrc { };
  compile = import ./nix/compile.nix;

-  build_release = target: (compile {
-    inherit target system git_version nixpkgs;
-    crane = flake.inputs.crane;
-    rust-overlay = flake.inputs.rust-overlay;
-    release = true;
-  }).garage;
+  build_debug_and_release = (target: {
+    debug = (compile {
+      inherit system target git_version pkgsSrc cargo2nixOverlay;
+      release = false;
+    }).workspace.garage { compileMode = "build"; };
+
+    release = (compile {
+      inherit system target git_version pkgsSrc cargo2nixOverlay;
+      release = true;
+    }).workspace.garage { compileMode = "build"; };
+  });
+
+  test = (rustPkgs:
+    pkgs.symlinkJoin {
+      name = "garage-tests";
+      paths =
+        builtins.map (key: rustPkgs.workspace.${key} { compileMode = "test"; })
+        (builtins.attrNames rustPkgs.workspace);
+    });

 in {
-  releasePackages = {
-    amd64 = build_release "x86_64-unknown-linux-musl";
-    i386 = build_release "i686-unknown-linux-musl";
-    arm64 = build_release "aarch64-unknown-linux-musl";
-    arm = build_release "armv6l-unknown-linux-musleabihf";
+  pkgs = {
+    amd64 = build_debug_and_release "x86_64-unknown-linux-musl";
+    i386 = build_debug_and_release "i686-unknown-linux-musl";
+    arm64 = build_debug_and_release "aarch64-unknown-linux-musl";
+    arm = build_debug_and_release "armv6l-unknown-linux-musleabihf";
+  };
+  test = {
+    amd64 = test (compile {
+      inherit system git_version pkgsSrc cargo2nixOverlay;
+      target = "x86_64-unknown-linux-musl";
+      features = [
+        "garage/bundled-libs"
+        "garage/k2v"
+        "garage/lmdb"
+        "garage/sqlite"
+      ];
+    });
  };
-  flakePackages = flake.packages.${system};
 }
--- a/doc/book/connect/repositories.md
+++ b/doc/book/connect/repositories.md
@ -17,7 +17,7 @@ Garage can also help you serve this content.

 ## Gitea

-You can use Garage with Gitea to store your [git LFS](https://git-lfs.github.com/) data, your users' avatar, and their attachments.
+You can use Garage with Gitea to store your [git LFS](https://git-lfs.github.com/) data, your users' avatar, and their attachements.
 You can configure a different target for each data type (check `[lfs]` and `[attachment]` sections of the Gitea documentation) and you can provide a default one through the `[storage]` section.

 Let's start by creating a key and a bucket (your key id and secret will be needed later, keep them somewhere):
--- a/doc/book/operations/multi-hdd.md
+++ b/doc/book/operations/multi-hdd.md
@ -21,14 +21,14 @@ data_dir = [
 ```

 Garage will automatically balance all blocks stored by the node
-among the different specified directories, proportionally to the
+among the different specified directories, proportionnally to the
 specified capacities.

 ## Updating the list of storage locations

 If you add new storage locations to your `data_dir`,
 Garage will not rebalance existing data between storage locations.
-Newly written blocks will be balanced proportionally to the specified capacities,
+Newly written blocks will be balanced proportionnally to the specified capacities,
 and existing data may be moved between drives to improve balancing,
 but only opportunistically when a data block is re-written (e.g. an object
 is re-uploaded, or an object with a duplicate block is uploaded).
--- a/doc/book/reference-manual/configuration.md
+++ b/doc/book/reference-manual/configuration.md
@ -13,7 +13,6 @@ consistency_mode = "consistent"

 metadata_dir = "/var/lib/garage/meta"
 data_dir = "/var/lib/garage/data"
-metadata_snapshots_dir = "/var/lib/garage/snapshots"
 metadata_fsync = true
 data_fsync = false
 disable_scrub = false
@ -106,7 +105,6 @@ Top-level configuration options:
 [`metadata_auto_snapshot_interval`](#metadata_auto_snapshot_interval),
 [`metadata_dir`](#metadata_dir),
 [`metadata_fsync`](#metadata_fsync),
-[`metadata_snapshots_dir`](#metadata_snapshots_dir),
 [`replication_factor`](#replication_factor),
 [`consistency_mode`](#consistency_mode),
 [`rpc_bind_addr`](#rpc_bind_addr),
@ -277,7 +275,6 @@ as the index of all objects, object version and object blocks.

 Store this folder on a fast SSD drive if possible to maximize Garage's performance.

-
 #### `data_dir` {#data_dir}

 The directory in which Garage will store the data blocks of objects.
@ -298,25 +295,6 @@ data_dir = [
 See [the dedicated documentation page](@/documentation/operations/multi-hdd.md)
 on how to operate Garage in such a setup.

-#### `metadata_snapshots_dir` (since Garage `v1.0.2`) {#metadata_snapshots_dir}
-
-The directory in which Garage will store metadata snapshots when it
-performs a snapshot of the metadata database, either when instructed to do
-so from a RPC call or regularly through
-[`metadata_auto_snapshot_interval`](#metadata_auto_snapshot_interval).
-
-By default, Garage will store snapshots into a `snapshots/` subdirectory
-of [`metadata_dir`](#metadata_dir). This might quickly fill up your
-metadata storage space if you use snapshots, because Garage will need up
-to 4x the space of the existing metadata database: each snapshot requires
-roughly as much space as the original database, and Garage temporarily
-needs to store up to three different snapshots before it cleans up the oldest
-snapshot to go back to two stored snapshots.
-
-To prevent filling your disk, you might to change this setting to a
-directory with ample available space, e.g. on the same storage space as
-[`data_dir`](#data_dir).
-
 #### `db_engine` (since `v0.8.0`) {#db_engine}

 Since `v0.8.0`, Garage can use alternative storage backends as follows:
--- a/flake.lock
+++ b/flake.lock
@ -1,17 +1,28 @@
 {
  "nodes": {
-    "crane": {
+    "cargo2nix": {
+      "inputs": {
+        "flake-compat": [
+          "flake-compat"
+        ],
+        "flake-utils": "flake-utils",
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "rust-overlay": "rust-overlay"
+      },
      "locked": {
-        "lastModified": 1737689766,
-        "narHash": "sha256-ivVXYaYlShxYoKfSo5+y5930qMKKJ8CLcAoIBPQfJ6s=",
-        "owner": "ipetkov",
-        "repo": "crane",
-        "rev": "6fe74265bbb6d016d663b1091f015e2976c4a527",
+        "lastModified": 1705129117,
+        "narHash": "sha256-LgdDHibvimzYhxBK3kxCk2gAL7k4Hyigl5KI0X9cijA=",
+        "owner": "cargo2nix",
+        "repo": "cargo2nix",
+        "rev": "ae19a9e1f8f0880c088ea155ab66cee1fa001f59",
        "type": "github"
      },
      "original": {
-        "owner": "ipetkov",
-        "repo": "crane",
+        "owner": "cargo2nix",
+        "repo": "cargo2nix",
+        "rev": "ae19a9e1f8f0880c088ea155ab66cee1fa001f59",
        "type": "github"
      }
    },
@ -31,15 +42,12 @@
      }
    },
    "flake-utils": {
-      "inputs": {
-        "systems": "systems"
-      },
      "locked": {
-        "lastModified": 1731533236,
-        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
+        "lastModified": 1659877975,
+        "narHash": "sha256-zllb8aq3YO3h8B/U0/J1WBgAL8EX5yWf5pMj3G0NAmc=",
        "owner": "numtide",
        "repo": "flake-utils",
-        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
+        "rev": "c0e246b9b83f637f4681389ecabcb2681b4f3af0",
        "type": "github"
      },
      "original": {
@ -66,46 +74,34 @@
    },
    "root": {
      "inputs": {
-        "crane": "crane",
+        "cargo2nix": "cargo2nix",
        "flake-compat": "flake-compat",
-        "flake-utils": "flake-utils",
-        "nixpkgs": "nixpkgs",
-        "rust-overlay": "rust-overlay"
+        "flake-utils": [
+          "cargo2nix",
+          "flake-utils"
+        ],
+        "nixpkgs": "nixpkgs"
      }
    },
    "rust-overlay": {
      "inputs": {
        "nixpkgs": [
+          "cargo2nix",
          "nixpkgs"
        ]
      },
      "locked": {
-        "lastModified": 1738549608,
-        "narHash": "sha256-GdyT9QEUSx5k/n8kILuNy83vxxdyUfJ8jL5mMpQZWfw=",
+        "lastModified": 1736649126,
+        "narHash": "sha256-XCw5sv/ePsroqiF3lJM6Y2X9EhPdHeE47gr3Q8b0UQw=",
        "owner": "oxalica",
        "repo": "rust-overlay",
-        "rev": "35c6f8c4352f995ecd53896200769f80a3e8f22d",
+        "rev": "162ab0edc2936508470199b2e8e6c444a2535019",
        "type": "github"
      },
      "original": {
        "owner": "oxalica",
        "repo": "rust-overlay",
-        "rev": "35c6f8c4352f995ecd53896200769f80a3e8f22d",
-        "type": "github"
-      }
-    },
-    "systems": {
-      "locked": {
-        "lastModified": 1681028828,
-        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
-        "owner": "nix-systems",
-        "repo": "default",
-        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-systems",
-        "repo": "default",
+        "rev": "162ab0edc2936508470199b2e8e6c444a2535019",
        "type": "github"
      }
    }
--- a/flake.nix
+++ b/flake.nix
@ -2,84 +2,92 @@
  description =
    "Garage, an S3-compatible distributed object store for self-hosted deployments";

-  # Nixpkgs 24.11 as of 2025-01-12
+  # Nixpkgs 24.11 as of 2025-01-12 has rustc v1.82
  inputs.nixpkgs.url =
    "github:NixOS/nixpkgs/7c4869c47090dd7f9f1bdfb49a22aea026996815";

-  # Rust overlay as of 2025-02-03
-  inputs.rust-overlay.url =
-  "github:oxalica/rust-overlay/35c6f8c4352f995ecd53896200769f80a3e8f22d";
-  inputs.rust-overlay.inputs.nixpkgs.follows = "nixpkgs";
-
-  inputs.crane.url = "github:ipetkov/crane";
-
  inputs.flake-compat.url = "github:nix-community/flake-compat";
-  inputs.flake-utils.url = "github:numtide/flake-utils";

-  outputs = { self, nixpkgs, flake-utils, crane, rust-overlay, ... }:
+  inputs.cargo2nix = {
+    # As of 2022-10-18: two small patches over unstable branch, one for clippy and one to fix feature detection
+    #url = "github:Alexis211/cargo2nix/a7a61179b66054904ef6a195d8da736eaaa06c36";
+
+    # As of 2023-04-25:
+    # - my two patches were merged into unstable (one for clippy and one to "fix" feature detection)
+    # - rustc v1.66
+    # url = "github:cargo2nix/cargo2nix/8fb57a670f7993bfc24099c33eb9c5abb51f29a2";
+
+    # Mainline cargo2nix as of of 2025-01-12 (branch release-0.11.0)
+    url = "github:cargo2nix/cargo2nix/ae19a9e1f8f0880c088ea155ab66cee1fa001f59";
+
+    # Rust overlay as of 2025-01-12
+    inputs.rust-overlay.url =
+      "github:oxalica/rust-overlay/162ab0edc2936508470199b2e8e6c444a2535019";
+
+    inputs.nixpkgs.follows = "nixpkgs";
+    inputs.flake-compat.follows = "flake-compat";
+  };
+
+  inputs.flake-utils.follows = "cargo2nix/flake-utils";
+
+  outputs = { self, nixpkgs, cargo2nix, flake-utils, ... }:
    let
+      git_version = self.lastModifiedDate;
      compile = import ./nix/compile.nix;
    in
    flake-utils.lib.eachDefaultSystem (system:
      let
        pkgs = nixpkgs.legacyPackages.${system};
-        packageFor = target: release: (compile {
-          inherit system target nixpkgs crane rust-overlay release;
-        }).garage;
-        testWith = extraTestEnv: (compile {
-          inherit system nixpkgs crane rust-overlay extraTestEnv;
-          release = false;
-        }).garage-test;
      in
      {
-        packages = {
-          # default = native release build
-          default = packageFor null true;
-
-          # <arch> = cross-compiled, statically-linked release builds
-          amd64 = packageFor "x86_64-unknown-linux-musl" true;
-          i386 = packageFor "i686-unknown-linux-musl" true;
-          arm64 = packageFor "aarch64-unknown-linux-musl" true;
-          arm = packageFor "armv6l-unknown-linux-musl" true;
-
-          # dev = native dev build
-          dev = packageFor null false;
-
-          # test = cargo test
-          tests = testWith {};
-          tests-lmdb = testWith {
-            GARAGE_TEST_INTEGRATION_DB_ENGINE = "lmdb";
+        packages =
+          let
+            packageFor = target: (compile {
+              inherit system git_version target;
+              pkgsSrc = nixpkgs;
+              cargo2nixOverlay = cargo2nix.overlays.default;
+              release = true;
+            }).workspace.garage { compileMode = "build"; };
+          in
+          {
+            # default = native release build
+            default = packageFor null;
+            # other = cross-compiled, statically-linked builds
+            amd64 = packageFor "x86_64-unknown-linux-musl";
+            i386 = packageFor "i686-unknown-linux-musl";
+            arm64 = packageFor "aarch64-unknown-linux-musl";
+            arm = packageFor "armv6l-unknown-linux-musl";
          };
-          tests-sqlite = testWith {
-            GARAGE_TEST_INTEGRATION_DB_ENGINE = "sqlite";
-          };
-        };

        # ---- developpment shell, for making native builds only ----
        devShells =
          let
-            targets = compile {
-              inherit system nixpkgs crane rust-overlay;
-            };
+            shellWithPackages = (packages: (compile {
+              inherit system git_version;
+              pkgsSrc = nixpkgs;
+              cargo2nixOverlay = cargo2nix.overlays.default;
+            }).workspaceShell { inherit packages; });
          in
          {
-            default = targets.devShell;
-
-            # import the full shell using `nix develop .#full`
-            full = pkgs.mkShell {
-              buildInputs = with pkgs; [
-                targets.toolchain
-                protobuf
+            default = shellWithPackages
+              (with pkgs; [
+                rustfmt
                clang
                mold
-                # ---- extra packages for dev tasks ----
-                rust-analyzer
-                cargo-audit
-                cargo-outdated
-                cargo-machete
-                nixpkgs-fmt
-              ];
-            };
+              ]);
+
+            # import the full shell using `nix develop .#full`
+            full = shellWithPackages (with pkgs; [
+              rustfmt
+              rust-analyzer
+              clang
+              mold
+              # ---- extra packages for dev tasks ----
+              cargo-audit
+              cargo-outdated
+              cargo-machete
+              nixpkgs-fmt
+            ]);
          };
      });
 }
--- a/nix/build_index.nix
+++ b/nix/build_index.nix
@ -2,7 +2,7 @@

 with import ./common.nix;
 let
-  pkgs = import nixpkgs { };
+  pkgs = import pkgsSrc { };
  lib = pkgs.lib;

  /* Converts a key list and a value list to a set
--- a/nix/common.nix
+++ b/nix/common.nix
@ -10,9 +10,9 @@ let

  flake = (import flake-compat { system = builtins.currentSystem; src = ../.; });
 in
-
-{
-  flake = flake.defaultNix;
-  nixpkgs = flake.defaultNix.inputs.nixpkgs;
-  devShells = flake.defaultNix.devShells.${builtins.currentSystem};
+rec {
+  pkgsSrc = flake.defaultNix.inputs.nixpkgs;
+  cargo2nix = flake.defaultNix.inputs.cargo2nix;
+  cargo2nixOverlay = cargo2nix.overlays.default;
+  devShells = builtins.getAttr builtins.currentSystem flake.defaultNix.devShells;
 }
--- a/nix/compile.nix
+++ b/nix/compile.nix
@ -1,64 +1,83 @@
-{
-  /* build inputs */
-  nixpkgs,
-  crane,
-  rust-overlay,
-
-  /* parameters */
-  system,
-  git_version ? null,
-  target ? null,
-  release ? false,
-  features ? null,
-  extraTestEnv ? {}
-}:
+{ system, target ? null, pkgsSrc, cargo2nixOverlay
+, release ? false, git_version ? null, features ? null, }:

 let
  log = v: builtins.trace v v;

-  # NixOS and Rust/Cargo triples do not match for ARM, fix it here.
-  rustTarget = if target == "armv6l-unknown-linux-musleabihf" then
-    "arm-unknown-linux-musleabihf"
-  else
-    target;
-
-  rustTargetEnvMap = {
-    "x86_64-unknown-linux-musl" = "X86_64_UNKNOWN_LINUX_MUSL";
-    "aarch64-unknown-linux-musl" = "AARCH64_UNKNOWN_LINUX_MUSL";
-    "i686-unknown-linux-musl" = "I686_UNKNOWN_LINUX_MUSL";
-    "arm-unknown-linux-musleabihf" = "ARM_UNKNOWN_LINUX_MUSLEABIHF";
-  };
-
-  pkgsNative = import nixpkgs {
-    inherit system;
-    overlays = [ (import rust-overlay) ];
-  };
-
  pkgs = if target != null then
-    import nixpkgs {
+    import pkgsSrc {
      inherit system;
      crossSystem = {
        config = target;
        isStatic = true;
      };
-      overlays = [ (import rust-overlay) ];
+      overlays = [ cargo2nixOverlay ];
    }
  else
-    pkgsNative;
+    import pkgsSrc {
+      inherit system;
+      overlays = [ cargo2nixOverlay ];
+    };

-  inherit (pkgs) lib stdenv;
+  toolchainOptions = {
+    rustVersion = "1.78.0";
+    extraRustComponents = [ "clippy" ];
+  };

-  toolchainFn = (p: p.rust-bin.stable."1.82.0".default.override {
-    targets = lib.optionals (target != null) [ rustTarget ];
-    extensions = [
-      "rust-src"
-      "rustfmt"
+  /* Cargo2nix provides many overrides by default, you can take inspiration from them:
+     https://github.com/cargo2nix/cargo2nix/blob/master/overlay/overrides.nix
+
+     You can have a complete list of the available options by looking at the overriden object, mkcrate:
+     https://github.com/cargo2nix/cargo2nix/blob/master/overlay/mkcrate.nix
+  */
+  packageOverrides = pkgs:
+    pkgs.rustBuilder.overrides.all ++ [
+      /* [1] We need to alter Nix hardening to make static binaries: PIE,
+         Position Independent Executables seems to be supported only on amd64. Having
+         this flag set either 1. make our executables crash or 2. compile as dynamic on some platforms.
+         Here, we deactivate it. Later (find `codegenOpts`), we reactivate it for supported targets
+         (only amd64 curently) through the `-static-pie` flag.
+         PIE is a feature used by ASLR, which helps mitigate security issues.
+         Learn more about Nix Hardening at: https://github.com/NixOS/nixpkgs/blob/master/pkgs/build-support/cc-wrapper/add-hardening.sh
+
+         [2] We want to inject the git version while keeping the build deterministic.
+         As we do not want to consider the .git folder as part of the input source,
+         we ask the user (the CI often) to pass the value to Nix.
+
+         [3] We don't want libsodium-sys and zstd-sys to try to use pkgconfig to build against a system library.
+         However the features to do so get activated for some reason (due to a bug in cargo2nix?),
+         so disable them manually here.
+      */
+      (pkgs.rustBuilder.rustLib.makeOverride {
+        name = "garage";
+        overrideAttrs = drv:
+          (if git_version != null then {
+            # [2]
+            preConfigure = ''
+              ${drv.preConfigure or ""}
+              export GIT_VERSION="${git_version}"
+            '';
+          } else
+            { }) // {
+              # [1]
+              hardeningDisable = [ "pie" ];
+            };
+      })
+
+      (pkgs.rustBuilder.rustLib.makeOverride {
+        name = "libsodium-sys";
+        overrideArgs = old: {
+          features = [ ]; # [3]
+        };
+      })
+
+      (pkgs.rustBuilder.rustLib.makeOverride {
+        name = "zstd-sys";
+        overrideArgs = old: {
+          features = [ ]; # [3]
+        };
+      })
    ];
-  });
-
-  craneLib = (crane.mkLib pkgs).overrideToolchain toolchainFn;
-
-  src = craneLib.cleanCargoSource ../.;

  /* We ship some parts of the code disabled by default by putting them behind a flag.
     It speeds up the compilation (when the feature is not required) and released crates have less dependency by default (less attack surface, disk space, etc.).
@ -68,15 +87,16 @@ let
  rootFeatures = if features != null then
    features
  else
-    ([ "bundled-libs" "lmdb" "sqlite" "k2v" ] ++ (lib.optionals release [
-      "consul-discovery"
-      "kubernetes-discovery"
-      "metrics"
-      "telemetry-otlp"
-      "syslog"
-    ]));
+    ([ "garage/bundled-libs" "garage/lmdb" "garage/sqlite" "garage/k2v" ] ++ (if release then [
+      "garage/consul-discovery"
+      "garage/kubernetes-discovery"
+      "garage/metrics"
+      "garage/telemetry-otlp"
+      "garage/syslog"
+    ] else
+      [ ]));

-  featuresStr = lib.concatStringsSep "," rootFeatures;
+  packageFun = import ../Cargo.nix;

  /* We compile fully static binaries with musl to simplify deployment on most systems.
     When possible, we reactivate PIE hardening (see above).
@ -87,9 +107,12 @@ let
     For more information on static builds, please refer to Rust's RFC 1721.
     https://rust-lang.github.io/rfcs/1721-crt-static.html#specifying-dynamicstatic-c-runtime-linkage
  */
-  codegenOptsMap = {
-    "x86_64-unknown-linux-musl" =
-      [ "target-feature=+crt-static" "link-arg=-static-pie" ];
+
+  codegenOpts = {
+    "armv6l-unknown-linux-musleabihf" = [
+      "target-feature=+crt-static"
+      "link-arg=-static"
+    ]; # compile as dynamic with static-pie
    "aarch64-unknown-linux-musl" = [
      "target-feature=+crt-static"
      "link-arg=-static"
@ -98,95 +121,17 @@ let
      "target-feature=+crt-static"
      "link-arg=-static"
    ]; # segfault with static-pie
-    "armv6l-unknown-linux-musleabihf" = [
-      "target-feature=+crt-static"
-      "link-arg=-static"
-    ]; # compile as dynamic with static-pie
+    "x86_64-unknown-linux-musl" =
+      [ "target-feature=+crt-static" "link-arg=-static-pie" ];
  };

-  codegenOpts = if target != null then codegenOptsMap.${target} else [
-    "link-arg=-fuse-ld=mold"
-  ];
+  # NixOS and Rust/Cargo triples do not match for ARM, fix it here.
+  rustTarget = if target == "armv6l-unknown-linux-musleabihf" then
+    "arm-unknown-linux-musleabihf"
+  else
+    target;

-  commonArgs =
-    {
-      inherit src;
-      pname = "garage";
-      version = "dev";
-
-      strictDeps = true;
-      cargoExtraArgs = "--locked --features ${featuresStr}";
-      cargoTestExtraArgs = "--workspace";
-
-      nativeBuildInputs = [
-        pkgsNative.protobuf
-        pkgs.stdenv.cc
-      ] ++ lib.optionals (target == null) [
-        pkgs.clang
-        pkgs.mold
-      ];
-
-      CARGO_PROFILE = if release then "release" else "dev";
-      CARGO_BUILD_RUSTFLAGS =
-        lib.concatStringsSep
-          " "
-          (builtins.map (flag: "-C ${flag}") codegenOpts);
-    }
-  //
-    (if rustTarget != null then {
-      CARGO_BUILD_TARGET = rustTarget;
-
-      "CARGO_TARGET_${rustTargetEnvMap.${rustTarget}}_LINKER" = "${stdenv.cc.targetPrefix}cc";
-
-      HOST_CC = "${stdenv.cc.nativePrefix}cc";
-      TARGET_CC = "${stdenv.cc.targetPrefix}cc";
-    } else {
-      CARGO_TARGET_X86_64_UNKNOWN_LINUX_GNU_LINKER = "clang";
-    });
-
-in rec {
-  toolchain = toolchainFn pkgs;
-
-  devShell = pkgs.mkShell {
-    buildInputs = [
-      toolchain
-    ] ++ (with pkgs; [
-      protobuf
-      clang
-      mold
-    ]);
-  };
-
-  # ---- building garage ----
-
-  garage-deps = craneLib.buildDepsOnly commonArgs;
-
-  garage = craneLib.buildPackage (commonArgs // {
-    cargoArtifacts = garage-deps;
-
-    doCheck = false;
-  } //
-    (if git_version != null then {
-      version = git_version;
-      GIT_VERSION = git_version;
-    } else {}));
-
-  # ---- testing garage ----
-
-  garage-test-bin = craneLib.cargoBuild (commonArgs // {
-    cargoArtifacts = garage-deps;
-
-    pname = "garage-tests";
-
-    CARGO_PROFILE = "test";
-    cargoExtraArgs = "${commonArgs.cargoExtraArgs} --tests --workspace";
-    doCheck = false;
-  });
-
-  garage-test = craneLib.cargoTest (commonArgs // {
-    cargoArtifacts = garage-test-bin;
-    nativeBuildInputs = commonArgs.nativeBuildInputs ++ [
-      pkgs.cacert
-    ];
-  } // extraTestEnv);
-}
+in pkgs.rustBuilder.makePackageSet ({
+  inherit release packageFun packageOverrides codegenOpts rootFeatures;
+  target = rustTarget;
+} // toolchainOptions)
--- a/script/not-dynamic.sh
+++ b/script/not-dynamic.sh
@ -7,12 +7,7 @@ if [ "$#" -ne 1 ]; then
    exit 2
 fi

-if [ ! -x "$1" ]; then
-	echo "[fail] $1 does not exist or is not an executable"
-	exit 1
-fi
-
-if file "$1" | grep 'dynamically linked' 2>&1; then
+if file $1 | grep 'dynamically linked' 2>&1; then
    echo "[fail] $1 is dynamic"
    exit 1
 fi
--- a/shell.nix
+++ b/shell.nix
@ -3,7 +3,7 @@
 with import ./nix/common.nix;

 let
-  pkgs = import nixpkgs {
+  pkgs = import pkgsSrc {
    inherit system;
  };
  winscp = (import ./nix/winscp.nix) pkgs;
@ -39,7 +39,7 @@ in
            --endpoint-url https://garage.deuxfleurs.fr \
            --region garage \
          s3 cp \
-            ./result/bin/garage \
+            ./result-bin/bin/garage \
            s3://garagehq.deuxfleurs.fr/_releases/''${CI_COMMIT_TAG:-$CI_COMMIT_SHA}/''${TARGET}/garage
      }

--- a/src/api/s3/Cargo.toml
+++ b/src/api/s3/Cargo.toml
@ -1,5 +1,5 @@
 [package]
-name = "garage_api_s3"
+name = "garage_api"
 version = "1.0.1"
 authors = ["Alex Auvolat <alex@adnab.me>"]
 edition = "2018"
@ -20,9 +20,9 @@ garage_block.workspace = true
 garage_net.workspace = true
 garage_util.workspace = true
 garage_rpc.workspace = true
-garage_api_common.workspace = true

 aes-gcm.workspace = true
+argon2.workspace = true
 async-compression.workspace = true
 async-trait.workspace = true
 base64.workspace = true
@ -30,15 +30,20 @@ bytes.workspace = true
 chrono.workspace = true
 crc32fast.workspace = true
 crc32c.workspace = true
+crypto-common.workspace = true
 err-derive.workspace = true
 hex.workspace = true
+hmac.workspace = true
+idna.workspace = true
 tracing.workspace = true
 md-5.workspace = true
+nom.workspace = true
 pin-project.workspace = true
 sha1.workspace = true
 sha2.workspace = true

 futures.workspace = true
+futures-util.workspace = true
 tokio.workspace = true
 tokio-stream.workspace = true
 tokio-util.workspace = true
@ -49,13 +54,21 @@ httpdate.workspace = true
 http-range.workspace = true
 http-body-util.workspace = true
 hyper = { workspace = true, default-features = false, features = ["server", "http1"] }
+hyper-util.workspace = true
 multer.workspace = true
 percent-encoding.workspace = true
 roxmltree.workspace = true
 url.workspace = true

 serde.workspace = true
+serde_bytes.workspace = true
 serde_json.workspace = true
 quick-xml.workspace = true

 opentelemetry.workspace = true
+opentelemetry-prometheus = { workspace = true, optional = true }
+prometheus = { workspace = true, optional = true }
+
+[features]
+k2v = [ "garage_util/k2v", "garage_model/k2v" ]
+metrics = [ "opentelemetry-prometheus", "prometheus" ]
--- a/src/api/admin/Cargo.toml
+++ b/src/api/admin/Cargo.toml
@ -1,43 +0,0 @@
-[package]
-name = "garage_api_admin"
-version = "1.0.1"
-authors = ["Alex Auvolat <alex@adnab.me>"]
-edition = "2018"
-license = "AGPL-3.0"
-description = "Admin API server crate for the Garage object store"
-repository = "https://git.deuxfleurs.fr/Deuxfleurs/garage"
-readme = "../../README.md"
-
-[lib]
-path = "lib.rs"
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
-[dependencies]
-garage_model.workspace = true
-garage_table.workspace = true
-garage_util.workspace = true
-garage_rpc.workspace = true
-garage_api_common.workspace = true
-
-argon2.workspace = true
-async-trait.workspace = true
-err-derive.workspace = true
-hex.workspace = true
-tracing.workspace = true
-
-futures.workspace = true
-tokio.workspace = true
-http.workspace = true
-hyper = { workspace = true, default-features = false, features = ["server", "http1"] }
-url.workspace = true
-
-serde.workspace = true
-serde_json.workspace = true
-
-opentelemetry.workspace = true
-opentelemetry-prometheus = { workspace = true, optional = true }
-prometheus = { workspace = true, optional = true }
-
-[features]
-metrics = [ "opentelemetry-prometheus", "prometheus" ]
--- a/src/api/admin/api_server.rs
+++ b/src/api/admin/api_server.rs
@ -20,15 +20,15 @@ use garage_rpc::system::ClusterHealthStatus;
 use garage_util::error::Error as GarageError;
 use garage_util::socket_address::UnixOrTCPSocketAddress;

-use garage_api_common::generic_server::*;
-use garage_api_common::helpers::*;
+use crate::generic_server::*;

-use crate::bucket::*;
-use crate::cluster::*;
-use crate::error::*;
-use crate::key::*;
-use crate::router_v0;
-use crate::router_v1::{Authorization, Endpoint};
+use crate::admin::bucket::*;
+use crate::admin::cluster::*;
+use crate::admin::error::*;
+use crate::admin::key::*;
+use crate::admin::router_v0;
+use crate::admin::router_v1::{Authorization, Endpoint};
+use crate::helpers::*;

 pub type ResBody = BoxBody<Error>;

--- a/src/api/admin/bucket.rs
+++ b/src/api/admin/bucket.rs
@ -17,12 +17,11 @@ use garage_model::permission::*;
 use garage_model::s3::mpu_table;
 use garage_model::s3::object_table::*;

-use garage_api_common::common_error::CommonError;
-use garage_api_common::helpers::*;
-
-use crate::api_server::ResBody;
-use crate::error::*;
-use crate::key::ApiBucketKeyPerm;
+use crate::admin::api_server::ResBody;
+use crate::admin::error::*;
+use crate::admin::key::ApiBucketKeyPerm;
+use crate::common_error::CommonError;
+use crate::helpers::*;

 pub async fn handle_list_buckets(garage: &Arc<Garage>) -> Result<Response<ResBody>, Error> {
 	let buckets = garage
--- a/src/api/admin/cluster.rs
+++ b/src/api/admin/cluster.rs
@ -12,10 +12,9 @@ use garage_rpc::layout;

 use garage_model::garage::Garage;

-use garage_api_common::helpers::{json_ok_response, parse_json_body};
-
-use crate::api_server::ResBody;
-use crate::error::*;
+use crate::admin::api_server::ResBody;
+use crate::admin::error::*;
+use crate::helpers::{json_ok_response, parse_json_body};

 pub async fn handle_get_cluster_status(garage: &Arc<Garage>) -> Result<Response<ResBody>, Error> {
 	let layout = garage.system.cluster_layout();
--- a/src/api/admin/error.rs
+++ b/src/api/admin/error.rs
@ -1,24 +1,20 @@
-use std::convert::TryFrom;
-
 use err_derive::Error;
 use hyper::header::HeaderValue;
 use hyper::{HeaderMap, StatusCode};

 pub use garage_model::helper::error::Error as HelperError;

-use garage_api_common::common_error::{commonErrorDerivative, CommonError};
-pub use garage_api_common::common_error::{
-	CommonErrorDerivative, OkOrBadRequest, OkOrInternalError,
-};
-use garage_api_common::generic_server::ApiError;
-use garage_api_common::helpers::*;
+use crate::common_error::CommonError;
+pub use crate::common_error::{CommonErrorDerivative, OkOrBadRequest, OkOrInternalError};
+use crate::generic_server::ApiError;
+use crate::helpers::*;

 /// Errors of this crate
 #[derive(Debug, Error)]
 pub enum Error {
 	#[error(display = "{}", _0)]
 	/// Error from common error
-	Common(#[error(source)] CommonError),
+	Common(CommonError),

 	// Category: cannot process
 	/// The API access key does not exist
@ -33,21 +29,17 @@ pub enum Error {
 	KeyAlreadyExists(String),
 }

-commonErrorDerivative!(Error);
-
-/// FIXME: helper errors are transformed into their corresponding variants
-/// in the Error struct, but in many case a helper error should be considered
-/// an internal error.
-impl From<HelperError> for Error {
-	fn from(err: HelperError) -> Error {
-		match CommonError::try_from(err) {
-			Ok(ce) => Self::Common(ce),
-			Err(HelperError::NoSuchAccessKey(k)) => Self::NoSuchAccessKey(k),
-			Err(_) => unreachable!(),
-		}
+impl<T> From<T> for Error
+where
+	CommonError: From<T>,
+{
+	fn from(err: T) -> Self {
+		Error::Common(CommonError::from(err))
 	}
 }

+impl CommonErrorDerivative for Error {}
+
 impl Error {
 	fn code(&self) -> &'static str {
 		match self {
--- a/src/api/admin/key.rs
+++ b/src/api/admin/key.rs
@ -9,10 +9,9 @@ use garage_table::*;
 use garage_model::garage::Garage;
 use garage_model::key_table::*;

-use garage_api_common::helpers::*;
-
-use crate::api_server::ResBody;
-use crate::error::*;
+use crate::admin::api_server::ResBody;
+use crate::admin::error::*;
+use crate::helpers::*;

 pub async fn handle_list_keys(garage: &Arc<Garage>) -> Result<Response<ResBody>, Error> {
 	let res = garage
--- a/src/api/admin/mod.rs
+++ b/src/api/admin/mod.rs
@ -1,6 +1,3 @@
-#[macro_use]
-extern crate tracing;
-
 pub mod api_server;
 mod error;
 mod router_v0;
--- a/src/api/admin/router_v0.rs
+++ b/src/api/admin/router_v0.rs
@ -2,9 +2,8 @@ use std::borrow::Cow;

 use hyper::{Method, Request};

-use garage_api_common::router_macros::*;
-
-use crate::error::*;
+use crate::admin::error::*;
+use crate::router_macros::*;

 router_match! {@func

--- a/src/api/admin/router_v1.rs
+++ b/src/api/admin/router_v1.rs
@ -2,10 +2,9 @@ use std::borrow::Cow;

 use hyper::{Method, Request};

-use garage_api_common::router_macros::*;
-
-use crate::error::*;
-use crate::router_v0;
+use crate::admin::error::*;
+use crate::admin::router_v0;
+use crate::router_macros::*;

 pub enum Authorization {
 	None,
--- a/src/api/common/Cargo.toml
+++ b/src/api/common/Cargo.toml
@ -1,45 +0,0 @@
-[package]
-name = "garage_api_common"
-version = "1.0.1"
-authors = ["Alex Auvolat <alex@adnab.me>"]
-edition = "2018"
-license = "AGPL-3.0"
-description = "Common functions for the API server crates for the Garage object store"
-repository = "https://git.deuxfleurs.fr/Deuxfleurs/garage"
-readme = "../../README.md"
-
-[lib]
-path = "lib.rs"
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
-[dependencies]
-garage_model.workspace = true
-garage_table.workspace = true
-garage_util.workspace = true
-
-async-trait.workspace = true
-bytes.workspace = true
-chrono.workspace = true
-crypto-common.workspace = true
-err-derive.workspace = true
-hex.workspace = true
-hmac.workspace = true
-idna.workspace = true
-tracing.workspace = true
-nom.workspace = true
-pin-project.workspace = true
-sha2.workspace = true
-
-futures.workspace = true
-tokio.workspace = true
-http.workspace = true
-http-body-util.workspace = true
-hyper = { workspace = true, default-features = false, features = ["server", "http1"] }
-hyper-util.workspace = true
-url.workspace = true
-
-serde.workspace = true
-serde_json.workspace = true
-
-opentelemetry.workspace = true
--- a/src/api/common/cors.rs
+++ b/src/api/common/cors.rs
@ -1,170 +0,0 @@
-use std::sync::Arc;
-
-use http::header::{
-	ACCESS_CONTROL_ALLOW_HEADERS, ACCESS_CONTROL_ALLOW_METHODS, ACCESS_CONTROL_ALLOW_ORIGIN,
-	ACCESS_CONTROL_EXPOSE_HEADERS, ACCESS_CONTROL_REQUEST_HEADERS, ACCESS_CONTROL_REQUEST_METHOD,
-};
-use hyper::{body::Body, body::Incoming as IncomingBody, Request, Response, StatusCode};
-
-use garage_model::bucket_table::{BucketParams, CorsRule as GarageCorsRule};
-use garage_model::garage::Garage;
-
-use crate::common_error::{
-	helper_error_as_internal, CommonError, OkOrBadRequest, OkOrInternalError,
-};
-use crate::helpers::*;
-
-pub fn find_matching_cors_rule<'a>(
-	bucket_params: &'a BucketParams,
-	req: &Request<impl Body>,
-) -> Result<Option<&'a GarageCorsRule>, CommonError> {
-	if let Some(cors_config) = bucket_params.cors_config.get() {
-		if let Some(origin) = req.headers().get("Origin") {
-			let origin = origin.to_str()?;
-			let request_headers = match req.headers().get(ACCESS_CONTROL_REQUEST_HEADERS) {
-				Some(h) => h.to_str()?.split(',').map(|h| h.trim()).collect::<Vec<_>>(),
-				None => vec![],
-			};
-			return Ok(cors_config.iter().find(|rule| {
-				cors_rule_matches(rule, origin, req.method().as_ref(), request_headers.iter())
-			}));
-		}
-	}
-	Ok(None)
-}
-
-pub fn cors_rule_matches<'a, HI, S>(
-	rule: &GarageCorsRule,
-	origin: &'a str,
-	method: &'a str,
-	mut request_headers: HI,
-) -> bool
-where
-	HI: Iterator<Item = S>,
-	S: AsRef<str>,
-{
-	rule.allow_origins.iter().any(|x| x == "*" || x == origin)
-		&& rule.allow_methods.iter().any(|x| x == "*" || x == method)
-		&& request_headers.all(|h| {
-			rule.allow_headers
-				.iter()
-				.any(|x| x == "*" || x == h.as_ref())
-		})
-}
-
-pub fn add_cors_headers(
-	resp: &mut Response<impl Body>,
-	rule: &GarageCorsRule,
-) -> Result<(), http::header::InvalidHeaderValue> {
-	let h = resp.headers_mut();
-	h.insert(
-		ACCESS_CONTROL_ALLOW_ORIGIN,
-		rule.allow_origins.join(", ").parse()?,
-	);
-	h.insert(
-		ACCESS_CONTROL_ALLOW_METHODS,
-		rule.allow_methods.join(", ").parse()?,
-	);
-	h.insert(
-		ACCESS_CONTROL_ALLOW_HEADERS,
-		rule.allow_headers.join(", ").parse()?,
-	);
-	h.insert(
-		ACCESS_CONTROL_EXPOSE_HEADERS,
-		rule.expose_headers.join(", ").parse()?,
-	);
-	Ok(())
-}
-
-pub async fn handle_options_api(
-	garage: Arc<Garage>,
-	req: &Request<IncomingBody>,
-	bucket_name: Option<String>,
-) -> Result<Response<EmptyBody>, CommonError> {
-	// FIXME: CORS rules of buckets with local aliases are
-	// not taken into account.
-
-	// If the bucket name is a global bucket name,
-	// we try to apply the CORS rules of that bucket.
-	// If a user has a local bucket name that has
-	// the same name, its CORS rules won't be applied
-	// and will be shadowed by the rules of the globally
-	// existing bucket (but this is inevitable because
-	// OPTIONS calls are not auhtenticated).
-	if let Some(bn) = bucket_name {
-		let helper = garage.bucket_helper();
-		let bucket_id = helper
-			.resolve_global_bucket_name(&bn)
-			.await
-			.map_err(helper_error_as_internal)?;
-		if let Some(id) = bucket_id {
-			let bucket = garage
-				.bucket_helper()
-				.get_existing_bucket(id)
-				.await
-				.map_err(helper_error_as_internal)?;
-			let bucket_params = bucket.state.into_option().unwrap();
-			handle_options_for_bucket(req, &bucket_params)
-		} else {
-			// If there is a bucket name in the request, but that name
-			// does not correspond to a global alias for a bucket,
-			// then it's either a non-existing bucket or a local bucket.
-			// We have no way of knowing, because the request is not
-			// authenticated and thus we can't resolve local aliases.
-			// We take the permissive approach of allowing everything,
-			// because we don't want to prevent web apps that use
-			// local bucket names from making API calls.
-			Ok(Response::builder()
-				.header(ACCESS_CONTROL_ALLOW_ORIGIN, "*")
-				.header(ACCESS_CONTROL_ALLOW_METHODS, "*")
-				.status(StatusCode::OK)
-				.body(EmptyBody::new())?)
-		}
-	} else {
-		// If there is no bucket name in the request,
-		// we are doing a ListBuckets call, which we want to allow
-		// for all origins.
-		Ok(Response::builder()
-			.header(ACCESS_CONTROL_ALLOW_ORIGIN, "*")
-			.header(ACCESS_CONTROL_ALLOW_METHODS, "GET")
-			.status(StatusCode::OK)
-			.body(EmptyBody::new())?)
-	}
-}
-
-pub fn handle_options_for_bucket(
-	req: &Request<IncomingBody>,
-	bucket_params: &BucketParams,
-) -> Result<Response<EmptyBody>, CommonError> {
-	let origin = req
-		.headers()
-		.get("Origin")
-		.ok_or_bad_request("Missing Origin header")?
-		.to_str()?;
-	let request_method = req
-		.headers()
-		.get(ACCESS_CONTROL_REQUEST_METHOD)
-		.ok_or_bad_request("Missing Access-Control-Request-Method header")?
-		.to_str()?;
-	let request_headers = match req.headers().get(ACCESS_CONTROL_REQUEST_HEADERS) {
-		Some(h) => h.to_str()?.split(',').map(|h| h.trim()).collect::<Vec<_>>(),
-		None => vec![],
-	};
-
-	if let Some(cors_config) = bucket_params.cors_config.get() {
-		let matching_rule = cors_config
-			.iter()
-			.find(|rule| cors_rule_matches(rule, origin, request_method, request_headers.iter()));
-		if let Some(rule) = matching_rule {
-			let mut resp = Response::builder()
-				.status(StatusCode::OK)
-				.body(EmptyBody::new())?;
-			add_cors_headers(&mut resp, rule).ok_or_internal_error("Invalid CORS configuration")?;
-			return Ok(resp);
-		}
-	}
-
-	Err(CommonError::Forbidden(
-		"This CORS request is not allowed.".into(),
-	))
-}
--- a/src/api/common/lib.rs
+++ b/src/api/common/lib.rs
@ -1,12 +0,0 @@
-//! Crate for serving a S3 compatible API
-#[macro_use]
-extern crate tracing;
-
-pub mod common_error;
-
-pub mod cors;
-pub mod encoding;
-pub mod generic_server;
-pub mod helpers;
-pub mod router_macros;
-pub mod signature;
--- a/src/api/common/common_error.rs
+++ b/src/api/common/common_error.rs
@ -1,5 +1,3 @@
-use std::convert::TryFrom;
-
 use err_derive::Error;
 use hyper::StatusCode;

@ -57,35 +55,6 @@ pub enum CommonError {
 	InvalidBucketName(String),
 }

-#[macro_export]
-macro_rules! commonErrorDerivative {
-	( $error_struct: ident ) => {
-		impl From<garage_util::error::Error> for $error_struct {
-			fn from(err: garage_util::error::Error) -> Self {
-				Self::Common(CommonError::InternalError(err))
-			}
-		}
-		impl From<http::Error> for $error_struct {
-			fn from(err: http::Error) -> Self {
-				Self::Common(CommonError::Http(err))
-			}
-		}
-		impl From<hyper::Error> for $error_struct {
-			fn from(err: hyper::Error) -> Self {
-				Self::Common(CommonError::Hyper(err))
-			}
-		}
-		impl From<hyper::header::ToStrError> for $error_struct {
-			fn from(err: hyper::header::ToStrError) -> Self {
-				Self::Common(CommonError::InvalidHeader(err))
-			}
-		}
-		impl CommonErrorDerivative for $error_struct {}
-	};
-}
-
-pub use commonErrorDerivative;
-
 impl CommonError {
 	pub fn http_status_code(&self) -> StatusCode {
 		match self {
@ -128,39 +97,18 @@ impl CommonError {
 	}
 }

-impl TryFrom<HelperError> for CommonError {
-	type Error = HelperError;
-
-	fn try_from(err: HelperError) -> Result<Self, HelperError> {
+impl From<HelperError> for CommonError {
+	fn from(err: HelperError) -> Self {
 		match err {
-			HelperError::Internal(i) => Ok(Self::InternalError(i)),
-			HelperError::BadRequest(b) => Ok(Self::BadRequest(b)),
-			HelperError::InvalidBucketName(n) => Ok(Self::InvalidBucketName(n)),
-			HelperError::NoSuchBucket(n) => Ok(Self::NoSuchBucket(n)),
-			e => Err(e),
+			HelperError::Internal(i) => Self::InternalError(i),
+			HelperError::BadRequest(b) => Self::BadRequest(b),
+			HelperError::InvalidBucketName(n) => Self::InvalidBucketName(n),
+			HelperError::NoSuchBucket(n) => Self::NoSuchBucket(n),
+			e => Self::bad_request(format!("{}", e)),
 		}
 	}
 }

-/// This function converts HelperErrors into CommonErrors,
-/// for variants that exist in CommonError.
-/// This is used for helper functions that might return InvalidBucketName
-/// or NoSuchBucket for instance, and we want to pass that error
-/// up to our caller.
-pub fn pass_helper_error(err: HelperError) -> CommonError {
-	match CommonError::try_from(err) {
-		Ok(e) => e,
-		Err(e) => panic!("Helper error `{}` should hot have happenned here", e),
-	}
-}
-
-pub fn helper_error_as_internal(err: HelperError) -> CommonError {
-	match err {
-		HelperError::Internal(e) => CommonError::InternalError(e),
-		e => CommonError::InternalError(GarageError::Message(e.to_string())),
-	}
-}
-
 pub trait CommonErrorDerivative: From<CommonError> {
 	fn internal_error<M: ToString>(msg: M) -> Self {
 		Self::from(CommonError::InternalError(GarageError::Message(
--- a/src/api/common/encoding.rs
+++ b/src/api/common/encoding.rs
--- a/src/api/common/generic_server.rs
+++ b/src/api/common/generic_server.rs
@ -36,7 +36,7 @@ use garage_util::socket_address::UnixOrTCPSocketAddress;

 use crate::helpers::{BoxBody, ErrorBody};

-pub trait ApiEndpoint: Send + Sync + 'static {
+pub(crate) trait ApiEndpoint: Send + Sync + 'static {
 	fn name(&self) -> &'static str;
 	fn add_span_attributes(&self, span: SpanRef<'_>);
 }
@ -48,7 +48,7 @@ pub trait ApiError: std::error::Error + Send + Sync + 'static {
 }

 #[async_trait]
-pub trait ApiHandler: Send + Sync + 'static {
+pub(crate) trait ApiHandler: Send + Sync + 'static {
 	const API_NAME: &'static str;
 	const API_NAME_DISPLAY: &'static str;

@ -63,7 +63,7 @@ pub trait ApiHandler: Send + Sync + 'static {
 	) -> Result<Response<BoxBody<Self::Error>>, Self::Error>;
 }

-pub struct ApiServer<A: ApiHandler> {
+pub(crate) struct ApiServer<A: ApiHandler> {
 	region: String,
 	api_handler: A,

--- a/src/api/common/helpers.rs
+++ b/src/api/common/helpers.rs
@ -363,9 +363,9 @@ mod tests {
 }

 #[derive(Serialize)]
-pub struct CustomApiErrorBody {
-	pub code: String,
-	pub message: String,
-	pub region: String,
-	pub path: String,
+pub(crate) struct CustomApiErrorBody {
+	pub(crate) code: String,
+	pub(crate) message: String,
+	pub(crate) region: String,
+	pub(crate) path: String,
 }
--- a/src/api/k2v/Cargo.toml
+++ b/src/api/k2v/Cargo.toml
@ -1,38 +0,0 @@
-[package]
-name = "garage_api_k2v"
-version = "1.0.1"
-authors = ["Alex Auvolat <alex@adnab.me>"]
-edition = "2018"
-license = "AGPL-3.0"
-description = "K2V API server crate for the Garage object store"
-repository = "https://git.deuxfleurs.fr/Deuxfleurs/garage"
-readme = "../../README.md"
-
-[lib]
-path = "lib.rs"
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
-[dependencies]
-garage_model = { workspace = true, features = [ "k2v" ] }
-garage_table.workspace = true
-garage_util = { workspace = true, features = [ "k2v" ] }
-garage_api_common.workspace = true
-
-async-trait.workspace = true
-base64.workspace = true
-err-derive.workspace = true
-tracing.workspace = true
-
-futures.workspace = true
-tokio.workspace = true
-http.workspace = true
-http-body-util.workspace = true
-hyper = { workspace = true, default-features = false, features = ["server", "http1"] }
-percent-encoding.workspace = true
-url.workspace = true
-
-serde.workspace = true
-serde_json.workspace = true
-
-opentelemetry.workspace = true
--- a/src/api/k2v/api_server.rs
+++ b/src/api/k2v/api_server.rs
@ -12,25 +12,26 @@ use garage_util::socket_address::UnixOrTCPSocketAddress;

 use garage_model::garage::Garage;

-use garage_api_common::cors::*;
-use garage_api_common::generic_server::*;
-use garage_api_common::helpers::*;
-use garage_api_common::signature::verify_request;
+use crate::generic_server::*;
+use crate::k2v::error::*;

-use crate::batch::*;
-use crate::error::*;
-use crate::index::*;
-use crate::item::*;
-use crate::router::Endpoint;
+use crate::signature::verify_request;

-pub use garage_api_common::signature::streaming::ReqBody;
+use crate::helpers::*;
+use crate::k2v::batch::*;
+use crate::k2v::index::*;
+use crate::k2v::item::*;
+use crate::k2v::router::Endpoint;
+use crate::s3::cors::*;
+
+pub use crate::signature::streaming::ReqBody;
 pub type ResBody = BoxBody<Error>;

 pub struct K2VApiServer {
 	garage: Arc<Garage>,
 }

-pub struct K2VApiEndpoint {
+pub(crate) struct K2VApiEndpoint {
 	bucket_name: String,
 	endpoint: Endpoint,
 }
@ -89,13 +90,11 @@ impl ApiHandler for K2VApiServer {
 		let bucket_id = garage
 			.bucket_helper()
 			.resolve_bucket(&bucket_name, &api_key)
-			.await
-			.map_err(pass_helper_error)?;
+			.await?;
 		let bucket = garage
 			.bucket_helper()
 			.get_existing_bucket(bucket_id)
-			.await
-			.map_err(helper_error_as_internal)?;
+			.await?;
 		let bucket_params = bucket.state.into_option().unwrap();

 		let allowed = match endpoint.authorization_type() {
--- a/src/api/k2v/batch.rs
+++ b/src/api/k2v/batch.rs
@ -4,14 +4,13 @@ use serde::{Deserialize, Serialize};

 use garage_table::{EnumerationOrder, TableSchema};

+use garage_model::k2v::causality::*;
 use garage_model::k2v::item_table::*;

-use garage_api_common::helpers::*;
-
-use crate::api_server::{ReqBody, ResBody};
-use crate::error::*;
-use crate::item::parse_causality_token;
-use crate::range::read_range;
+use crate::helpers::*;
+use crate::k2v::api_server::{ReqBody, ResBody};
+use crate::k2v::error::*;
+use crate::k2v::range::read_range;

 pub async fn handle_insert_batch(
 	ctx: ReqCtx,
@ -24,7 +23,7 @@ pub async fn handle_insert_batch(

 	let mut items2 = vec![];
 	for it in items {
-		let ct = it.ct.map(|s| parse_causality_token(&s)).transpose()?;
+		let ct = it.ct.map(|s| CausalContext::parse_helper(&s)).transpose()?;
 		let v = match it.v {
 			Some(vs) => DvvsValue::Value(
 				BASE64_STANDARD
@ -282,8 +281,7 @@ pub(crate) async fn handle_poll_range(
 			query.seen_marker,
 			timeout_msec,
 		)
-		.await
-		.map_err(pass_helper_error)?;
+		.await?;

 	if let Some((items, seen_marker)) = resp {
 		let resp = PollRangeResponse {
--- a/src/api/k2v/error.rs
+++ b/src/api/k2v/error.rs
@ -2,21 +2,18 @@ use err_derive::Error;
 use hyper::header::HeaderValue;
 use hyper::{HeaderMap, StatusCode};

-use garage_api_common::common_error::{commonErrorDerivative, CommonError};
-pub(crate) use garage_api_common::common_error::{helper_error_as_internal, pass_helper_error};
-pub use garage_api_common::common_error::{
-	CommonErrorDerivative, OkOrBadRequest, OkOrInternalError,
-};
-use garage_api_common::generic_server::ApiError;
-use garage_api_common::helpers::*;
-use garage_api_common::signature::error::Error as SignatureError;
+use crate::common_error::CommonError;
+pub use crate::common_error::{CommonErrorDerivative, OkOrBadRequest, OkOrInternalError};
+use crate::generic_server::ApiError;
+use crate::helpers::*;
+use crate::signature::error::Error as SignatureError;

 /// Errors of this crate
 #[derive(Debug, Error)]
 pub enum Error {
 	#[error(display = "{}", _0)]
 	/// Error from common error
-	Common(#[error(source)] CommonError),
+	Common(CommonError),

 	// Category: cannot process
 	/// Authorization Header Malformed
@ -31,10 +28,6 @@ pub enum Error {
 	#[error(display = "Invalid base64: {}", _0)]
 	InvalidBase64(#[error(source)] base64::DecodeError),

-	/// Invalid causality token
-	#[error(display = "Invalid causality token")]
-	InvalidCausalityToken,
-
 	/// The client asked for an invalid return format (invalid Accept header)
 	#[error(display = "Not acceptable: {}", _0)]
 	NotAcceptable(String),
@ -44,7 +37,16 @@ pub enum Error {
 	InvalidUtf8Str(#[error(source)] std::str::Utf8Error),
 }

-commonErrorDerivative!(Error);
+impl<T> From<T> for Error
+where
+	CommonError: From<T>,
+{
+	fn from(err: T) -> Self {
+		Error::Common(CommonError::from(err))
+	}
+}
+
+impl CommonErrorDerivative for Error {}

 impl From<SignatureError> for Error {
 	fn from(err: SignatureError) -> Self {
@ -70,7 +72,6 @@ impl Error {
 			Error::AuthorizationHeaderMalformed(_) => "AuthorizationHeaderMalformed",
 			Error::InvalidBase64(_) => "InvalidBase64",
 			Error::InvalidUtf8Str(_) => "InvalidUtf8String",
-			Error::InvalidCausalityToken => "CausalityToken",
 		}
 	}
 }
@ -84,8 +85,7 @@ impl ApiError for Error {
 			Error::NotAcceptable(_) => StatusCode::NOT_ACCEPTABLE,
 			Error::AuthorizationHeaderMalformed(_)
 			| Error::InvalidBase64(_)
-			| Error::InvalidUtf8Str(_)
-			| Error::InvalidCausalityToken => StatusCode::BAD_REQUEST,
+			| Error::InvalidUtf8Str(_) => StatusCode::BAD_REQUEST,
 		}
 	}

--- a/src/api/k2v/index.rs
+++ b/src/api/k2v/index.rs
@ -5,11 +5,10 @@ use garage_table::util::*;

 use garage_model::k2v::item_table::{BYTES, CONFLICTS, ENTRIES, VALUES};

-use garage_api_common::helpers::*;
-
-use crate::api_server::ResBody;
-use crate::error::*;
-use crate::range::read_range;
+use crate::helpers::*;
+use crate::k2v::api_server::ResBody;
+use crate::k2v::error::*;
+use crate::k2v::range::read_range;

 pub async fn handle_read_index(
 	ctx: ReqCtx,
--- a/src/api/k2v/item.rs
+++ b/src/api/k2v/item.rs
@ -6,10 +6,9 @@ use hyper::{Request, Response, StatusCode};
 use garage_model::k2v::causality::*;
 use garage_model::k2v::item_table::*;

-use garage_api_common::helpers::*;
-
-use crate::api_server::{ReqBody, ResBody};
-use crate::error::*;
+use crate::helpers::*;
+use crate::k2v::api_server::{ReqBody, ResBody};
+use crate::k2v::error::*;

 pub const X_GARAGE_CAUSALITY_TOKEN: &str = "X-Garage-Causality-Token";

@ -19,10 +18,6 @@ pub enum ReturnFormat {
 	Either,
 }

-pub(crate) fn parse_causality_token(s: &str) -> Result<CausalContext, Error> {
-	CausalContext::parse(s).ok_or(Error::InvalidCausalityToken)
-}
-
 impl ReturnFormat {
 	pub fn from(req: &Request<ReqBody>) -> Result<Self, Error> {
 		let accept = match req.headers().get(header::ACCEPT) {
@ -141,7 +136,7 @@ pub async fn handle_insert_item(
 		.get(X_GARAGE_CAUSALITY_TOKEN)
 		.map(|s| s.to_str())
 		.transpose()?
-		.map(parse_causality_token)
+		.map(CausalContext::parse_helper)
 		.transpose()?;

 	let body = http_body_util::BodyExt::collect(req.into_body())
@ -181,7 +176,7 @@ pub async fn handle_delete_item(
 		.get(X_GARAGE_CAUSALITY_TOKEN)
 		.map(|s| s.to_str())
 		.transpose()?
-		.map(parse_causality_token)
+		.map(CausalContext::parse_helper)
 		.transpose()?;

 	let value = DvvsValue::Deleted;
--- a/src/api/k2v/mod.rs
+++ b/src/api/k2v/mod.rs
@ -1,6 +1,3 @@
-#[macro_use]
-extern crate tracing;
-
 pub mod api_server;
 mod error;
 mod router;
--- a/src/api/k2v/range.rs
+++ b/src/api/k2v/range.rs
@ -7,9 +7,8 @@ use std::sync::Arc;
 use garage_table::replication::TableShardedReplication;
 use garage_table::*;

-use garage_api_common::helpers::key_after_prefix;
-
-use crate::error::*;
+use crate::helpers::key_after_prefix;
+use crate::k2v::error::*;

 /// Read range in a Garage table.
 /// Returns (entries, more?, nextStart)
--- a/src/api/k2v/router.rs
+++ b/src/api/k2v/router.rs
@ -1,11 +1,11 @@
-use crate::error::*;
+use crate::k2v::error::*;

 use std::borrow::Cow;

 use hyper::{Method, Request};

-use garage_api_common::helpers::Authorization;
-use garage_api_common::router_macros::{generateQueryParameters, router_match};
+use crate::helpers::Authorization;
+use crate::router_macros::{generateQueryParameters, router_match};

 router_match! {@func

--- a/src/api/lib.rs
+++ b/src/api/lib.rs
@ -0,0 +1,17 @@
+//! Crate for serving a S3 compatible API
+#[macro_use]
+extern crate tracing;
+
+pub mod common_error;
+
+mod encoding;
+pub mod generic_server;
+pub mod helpers;
+mod router_macros;
+/// This mode is public only to help testing. Don't expect stability here
+pub mod signature;
+
+pub mod admin;
+#[cfg(feature = "k2v")]
+pub mod k2v;
+pub mod s3;
--- a/src/api/common/router_macros.rs
+++ b/src/api/common/router_macros.rs
@ -1,6 +1,5 @@
 /// This macro is used to generate very repetitive match {} blocks in this module
 /// It is _not_ made to be used anywhere else
-#[macro_export]
 macro_rules! router_match {
    (@match $enum:expr , [ $($endpoint:ident,)* ]) => {{
        // usage: router_match {@match my_enum, [ VariantWithField1, VariantWithField2 ..] }
@ -134,7 +133,6 @@ macro_rules! router_match {

 /// This macro is used to generate part of the code in this module. It must be called only one, and
 /// is useless outside of this module.
-#[macro_export]
 macro_rules! generateQueryParameters {
    (
        keywords: [ $($kw_param:expr => $kw_name: ident),* ],
@ -222,5 +220,5 @@ macro_rules! generateQueryParameters {
    }
 }

-pub use generateQueryParameters;
-pub use router_match;
+pub(crate) use generateQueryParameters;
+pub(crate) use router_match;
--- a/src/api/s3/api_server.rs
+++ b/src/api/s3/api_server.rs
@ -14,33 +14,33 @@ use garage_util::socket_address::UnixOrTCPSocketAddress;
 use garage_model::garage::Garage;
 use garage_model::key_table::Key;

-use garage_api_common::cors::*;
-use garage_api_common::generic_server::*;
-use garage_api_common::helpers::*;
-use garage_api_common::signature::verify_request;
+use crate::generic_server::*;
+use crate::s3::error::*;

-use crate::bucket::*;
-use crate::copy::*;
-use crate::cors::*;
-use crate::delete::*;
-use crate::error::*;
-use crate::get::*;
-use crate::lifecycle::*;
-use crate::list::*;
-use crate::multipart::*;
-use crate::post_object::handle_post_object;
-use crate::put::*;
-use crate::router::Endpoint;
-use crate::website::*;
+use crate::signature::verify_request;

-pub use garage_api_common::signature::streaming::ReqBody;
+use crate::helpers::*;
+use crate::s3::bucket::*;
+use crate::s3::copy::*;
+use crate::s3::cors::*;
+use crate::s3::delete::*;
+use crate::s3::get::*;
+use crate::s3::lifecycle::*;
+use crate::s3::list::*;
+use crate::s3::multipart::*;
+use crate::s3::post_object::handle_post_object;
+use crate::s3::put::*;
+use crate::s3::router::Endpoint;
+use crate::s3::website::*;
+
+pub use crate::signature::streaming::ReqBody;
 pub type ResBody = BoxBody<Error>;

 pub struct S3ApiServer {
 	garage: Arc<Garage>,
 }

-pub struct S3ApiEndpoint {
+pub(crate) struct S3ApiEndpoint {
 	bucket_name: Option<String>,
 	endpoint: Endpoint,
 }
@ -150,8 +150,7 @@ impl ApiHandler for S3ApiServer {
 		let bucket_id = garage
 			.bucket_helper()
 			.resolve_bucket(&bucket_name, &api_key)
-			.await
-			.map_err(pass_helper_error)?;
+			.await?;
 		let bucket = garage
 			.bucket_helper()
 			.get_existing_bucket(bucket_id)
--- a/src/api/s3/bucket.rs
+++ b/src/api/s3/bucket.rs
@ -13,13 +13,12 @@ use garage_util::crdt::*;
 use garage_util::data::*;
 use garage_util::time::*;

-use garage_api_common::common_error::CommonError;
-use garage_api_common::helpers::*;
-use garage_api_common::signature::verify_signed_content;
-
-use crate::api_server::{ReqBody, ResBody};
-use crate::error::*;
-use crate::xml as s3_xml;
+use crate::common_error::CommonError;
+use crate::helpers::*;
+use crate::s3::api_server::{ReqBody, ResBody};
+use crate::s3::error::*;
+use crate::s3::xml as s3_xml;
+use crate::signature::verify_signed_content;

 pub fn handle_get_bucket_location(ctx: ReqCtx) -> Result<Response<ResBody>, Error> {
 	let ReqCtx { garage, .. } = ctx;
--- a/src/api/s3/checksum.rs
+++ b/src/api/s3/checksum.rs
@ -15,7 +15,7 @@ use garage_util::error::OkOrMessage;

 use garage_model::s3::object_table::*;

-use crate::error::*;
+use crate::s3::error::*;

 pub const X_AMZ_CHECKSUM_ALGORITHM: HeaderName =
 	HeaderName::from_static("x-amz-checksum-algorithm");
--- a/src/api/s3/copy.rs
+++ b/src/api/s3/copy.rs
@ -20,16 +20,15 @@ use garage_model::s3::mpu_table::*;
 use garage_model::s3::object_table::*;
 use garage_model::s3::version_table::*;

-use garage_api_common::helpers::*;
-
-use crate::api_server::{ReqBody, ResBody};
-use crate::checksum::*;
-use crate::encryption::EncryptionParams;
-use crate::error::*;
-use crate::get::full_object_byte_stream;
-use crate::multipart;
-use crate::put::{get_headers, save_stream, ChecksumMode, SaveStreamResult};
-use crate::xml::{self as s3_xml, xmlns_tag};
+use crate::helpers::*;
+use crate::s3::api_server::{ReqBody, ResBody};
+use crate::s3::checksum::*;
+use crate::s3::encryption::EncryptionParams;
+use crate::s3::error::*;
+use crate::s3::get::full_object_byte_stream;
+use crate::s3::multipart;
+use crate::s3::put::{get_headers, save_stream, ChecksumMode, SaveStreamResult};
+use crate::s3::xml::{self as s3_xml, xmlns_tag};

 // -------- CopyObject ---------

@ -656,8 +655,7 @@ async fn get_copy_source(ctx: &ReqCtx, req: &Request<ReqBody>) -> Result<Object,
 	let source_bucket_id = garage
 		.bucket_helper()
 		.resolve_bucket(&source_bucket.to_string(), api_key)
-		.await
-		.map_err(pass_helper_error)?;
+		.await?;

 	if !api_key.allow_read(&source_bucket_id) {
 		return Err(Error::forbidden(format!(
@ -863,7 +861,7 @@ pub struct CopyPartResult {
 #[cfg(test)]
 mod tests {
 	use super::*;
-	use crate::xml::to_xml_with_header;
+	use crate::s3::xml::to_xml_with_header;

 	#[test]
 	fn copy_object_result() -> Result<(), Error> {
--- a/src/api/s3/cors.rs
+++ b/src/api/s3/cors.rs
@ -1,21 +1,30 @@
 use quick_xml::de::from_reader;
+use std::sync::Arc;

-use hyper::{header::HeaderName, Method, Request, Response, StatusCode};
+use http::header::{
+	ACCESS_CONTROL_ALLOW_HEADERS, ACCESS_CONTROL_ALLOW_METHODS, ACCESS_CONTROL_ALLOW_ORIGIN,
+	ACCESS_CONTROL_EXPOSE_HEADERS, ACCESS_CONTROL_REQUEST_HEADERS, ACCESS_CONTROL_REQUEST_METHOD,
+};
+use hyper::{
+	body::Body, body::Incoming as IncomingBody, header::HeaderName, Method, Request, Response,
+	StatusCode,
+};

 use http_body_util::BodyExt;

 use serde::{Deserialize, Serialize};

-use garage_model::bucket_table::{Bucket, CorsRule as GarageCorsRule};
+use crate::common_error::CommonError;
+use crate::helpers::*;
+use crate::s3::api_server::{ReqBody, ResBody};
+use crate::s3::error::*;
+use crate::s3::xml::{to_xml_with_header, xmlns_tag, IntValue, Value};
+use crate::signature::verify_signed_content;
+
+use garage_model::bucket_table::{Bucket, BucketParams, CorsRule as GarageCorsRule};
+use garage_model::garage::Garage;
 use garage_util::data::*;

-use garage_api_common::helpers::*;
-use garage_api_common::signature::verify_signed_content;
-
-use crate::api_server::{ReqBody, ResBody};
-use crate::error::*;
-use crate::xml::{to_xml_with_header, xmlns_tag, IntValue, Value};
-
 pub async fn handle_get_cors(ctx: ReqCtx) -> Result<Response<ResBody>, Error> {
 	let ReqCtx { bucket_params, .. } = ctx;
 	if let Some(cors) = bucket_params.cors_config.get() {
@ -90,6 +99,154 @@ pub async fn handle_put_cors(
 		.body(empty_body())?)
 }

+pub async fn handle_options_api(
+	garage: Arc<Garage>,
+	req: &Request<IncomingBody>,
+	bucket_name: Option<String>,
+) -> Result<Response<EmptyBody>, CommonError> {
+	// FIXME: CORS rules of buckets with local aliases are
+	// not taken into account.
+
+	// If the bucket name is a global bucket name,
+	// we try to apply the CORS rules of that bucket.
+	// If a user has a local bucket name that has
+	// the same name, its CORS rules won't be applied
+	// and will be shadowed by the rules of the globally
+	// existing bucket (but this is inevitable because
+	// OPTIONS calls are not auhtenticated).
+	if let Some(bn) = bucket_name {
+		let helper = garage.bucket_helper();
+		let bucket_id = helper.resolve_global_bucket_name(&bn).await?;
+		if let Some(id) = bucket_id {
+			let bucket = garage.bucket_helper().get_existing_bucket(id).await?;
+			let bucket_params = bucket.state.into_option().unwrap();
+			handle_options_for_bucket(req, &bucket_params)
+		} else {
+			// If there is a bucket name in the request, but that name
+			// does not correspond to a global alias for a bucket,
+			// then it's either a non-existing bucket or a local bucket.
+			// We have no way of knowing, because the request is not
+			// authenticated and thus we can't resolve local aliases.
+			// We take the permissive approach of allowing everything,
+			// because we don't want to prevent web apps that use
+			// local bucket names from making API calls.
+			Ok(Response::builder()
+				.header(ACCESS_CONTROL_ALLOW_ORIGIN, "*")
+				.header(ACCESS_CONTROL_ALLOW_METHODS, "*")
+				.status(StatusCode::OK)
+				.body(EmptyBody::new())?)
+		}
+	} else {
+		// If there is no bucket name in the request,
+		// we are doing a ListBuckets call, which we want to allow
+		// for all origins.
+		Ok(Response::builder()
+			.header(ACCESS_CONTROL_ALLOW_ORIGIN, "*")
+			.header(ACCESS_CONTROL_ALLOW_METHODS, "GET")
+			.status(StatusCode::OK)
+			.body(EmptyBody::new())?)
+	}
+}
+
+pub fn handle_options_for_bucket(
+	req: &Request<IncomingBody>,
+	bucket_params: &BucketParams,
+) -> Result<Response<EmptyBody>, CommonError> {
+	let origin = req
+		.headers()
+		.get("Origin")
+		.ok_or_bad_request("Missing Origin header")?
+		.to_str()?;
+	let request_method = req
+		.headers()
+		.get(ACCESS_CONTROL_REQUEST_METHOD)
+		.ok_or_bad_request("Missing Access-Control-Request-Method header")?
+		.to_str()?;
+	let request_headers = match req.headers().get(ACCESS_CONTROL_REQUEST_HEADERS) {
+		Some(h) => h.to_str()?.split(',').map(|h| h.trim()).collect::<Vec<_>>(),
+		None => vec![],
+	};
+
+	if let Some(cors_config) = bucket_params.cors_config.get() {
+		let matching_rule = cors_config
+			.iter()
+			.find(|rule| cors_rule_matches(rule, origin, request_method, request_headers.iter()));
+		if let Some(rule) = matching_rule {
+			let mut resp = Response::builder()
+				.status(StatusCode::OK)
+				.body(EmptyBody::new())?;
+			add_cors_headers(&mut resp, rule).ok_or_internal_error("Invalid CORS configuration")?;
+			return Ok(resp);
+		}
+	}
+
+	Err(CommonError::Forbidden(
+		"This CORS request is not allowed.".into(),
+	))
+}
+
+pub fn find_matching_cors_rule<'a>(
+	bucket_params: &'a BucketParams,
+	req: &Request<impl Body>,
+) -> Result<Option<&'a GarageCorsRule>, Error> {
+	if let Some(cors_config) = bucket_params.cors_config.get() {
+		if let Some(origin) = req.headers().get("Origin") {
+			let origin = origin.to_str()?;
+			let request_headers = match req.headers().get(ACCESS_CONTROL_REQUEST_HEADERS) {
+				Some(h) => h.to_str()?.split(',').map(|h| h.trim()).collect::<Vec<_>>(),
+				None => vec![],
+			};
+			return Ok(cors_config.iter().find(|rule| {
+				cors_rule_matches(rule, origin, req.method().as_ref(), request_headers.iter())
+			}));
+		}
+	}
+	Ok(None)
+}
+
+fn cors_rule_matches<'a, HI, S>(
+	rule: &GarageCorsRule,
+	origin: &'a str,
+	method: &'a str,
+	mut request_headers: HI,
+) -> bool
+where
+	HI: Iterator<Item = S>,
+	S: AsRef<str>,
+{
+	rule.allow_origins.iter().any(|x| x == "*" || x == origin)
+		&& rule.allow_methods.iter().any(|x| x == "*" || x == method)
+		&& request_headers.all(|h| {
+			rule.allow_headers
+				.iter()
+				.any(|x| x == "*" || x == h.as_ref())
+		})
+}
+
+pub fn add_cors_headers(
+	resp: &mut Response<impl Body>,
+	rule: &GarageCorsRule,
+) -> Result<(), http::header::InvalidHeaderValue> {
+	let h = resp.headers_mut();
+	h.insert(
+		ACCESS_CONTROL_ALLOW_ORIGIN,
+		rule.allow_origins.join(", ").parse()?,
+	);
+	h.insert(
+		ACCESS_CONTROL_ALLOW_METHODS,
+		rule.allow_methods.join(", ").parse()?,
+	);
+	h.insert(
+		ACCESS_CONTROL_ALLOW_HEADERS,
+		rule.allow_headers.join(", ").parse()?,
+	);
+	h.insert(
+		ACCESS_CONTROL_EXPOSE_HEADERS,
+		rule.expose_headers.join(", ").parse()?,
+	);
+	Ok(())
+}
+
 // ---- SERIALIZATION AND DESERIALIZATION TO/FROM S3 XML ----

 #[derive(Debug, Serialize, Deserialize, PartialEq, Eq, PartialOrd, Ord)]
--- a/src/api/s3/delete.rs
+++ b/src/api/s3/delete.rs
@ -5,13 +5,12 @@ use garage_util::data::*;

 use garage_model::s3::object_table::*;

-use garage_api_common::helpers::*;
-use garage_api_common::signature::verify_signed_content;
-
-use crate::api_server::{ReqBody, ResBody};
-use crate::error::*;
-use crate::put::next_timestamp;
-use crate::xml as s3_xml;
+use crate::helpers::*;
+use crate::s3::api_server::{ReqBody, ResBody};
+use crate::s3::error::*;
+use crate::s3::put::next_timestamp;
+use crate::s3::xml as s3_xml;
+use crate::signature::verify_signed_content;

 async fn handle_delete_internal(ctx: &ReqCtx, key: &str) -> Result<(Uuid, Uuid), Error> {
 	let ReqCtx {
--- a/src/api/s3/encryption.rs
+++ b/src/api/s3/encryption.rs
@ -28,10 +28,9 @@ use garage_util::migrate::Migrate;
 use garage_model::garage::Garage;
 use garage_model::s3::object_table::{ObjectVersionEncryption, ObjectVersionMetaInner};

-use garage_api_common::common_error::*;
-
-use crate::checksum::Md5Checksum;
-use crate::error::Error;
+use crate::common_error::*;
+use crate::s3::checksum::Md5Checksum;
+use crate::s3::error::Error;

 const X_AMZ_SERVER_SIDE_ENCRYPTION_CUSTOMER_ALGORITHM: HeaderName =
 	HeaderName::from_static("x-amz-server-side-encryption-customer-algorithm");
--- a/src/api/s3/error.rs
+++ b/src/api/s3/error.rs
@ -4,30 +4,19 @@ use err_derive::Error;
 use hyper::header::HeaderValue;
 use hyper::{HeaderMap, StatusCode};

-use garage_model::helper::error::Error as HelperError;
-
-pub(crate) use garage_api_common::common_error::pass_helper_error;
-
-use garage_api_common::common_error::{
-	commonErrorDerivative, helper_error_as_internal, CommonError,
-};
-
-pub use garage_api_common::common_error::{
-	CommonErrorDerivative, OkOrBadRequest, OkOrInternalError,
-};
-
-use garage_api_common::generic_server::ApiError;
-use garage_api_common::helpers::*;
-use garage_api_common::signature::error::Error as SignatureError;
-
-use crate::xml as s3_xml;
+use crate::common_error::CommonError;
+pub use crate::common_error::{CommonErrorDerivative, OkOrBadRequest, OkOrInternalError};
+use crate::generic_server::ApiError;
+use crate::helpers::*;
+use crate::s3::xml as s3_xml;
+use crate::signature::error::Error as SignatureError;

 /// Errors of this crate
 #[derive(Debug, Error)]
 pub enum Error {
 	#[error(display = "{}", _0)]
 	/// Error from common error
-	Common(#[error(source)] CommonError),
+	Common(CommonError),

 	// Category: cannot process
 	/// Authorization Header Malformed
@ -89,16 +78,17 @@ pub enum Error {
 	NotImplemented(String),
 }

-commonErrorDerivative!(Error);
-
-// Helper errors are always passed as internal errors by default.
-// To pass the specific error code back to the client, use `pass_helper_error`.
-impl From<HelperError> for Error {
-	fn from(err: HelperError) -> Error {
-		Error::Common(helper_error_as_internal(err))
+impl<T> From<T> for Error
+where
+	CommonError: From<T>,
+{
+	fn from(err: T) -> Self {
+		Error::Common(CommonError::from(err))
 	}
 }

+impl CommonErrorDerivative for Error {}
+
 impl From<roxmltree::Error> for Error {
 	fn from(err: roxmltree::Error) -> Self {
 		Self::InvalidXml(format!("{}", err))
--- a/src/api/s3/get.rs
+++ b/src/api/s3/get.rs
@ -25,12 +25,11 @@ use garage_model::garage::Garage;
 use garage_model::s3::object_table::*;
 use garage_model::s3::version_table::*;

-use garage_api_common::helpers::*;
-
-use crate::api_server::ResBody;
-use crate::checksum::{add_checksum_response_headers, X_AMZ_CHECKSUM_MODE};
-use crate::encryption::EncryptionParams;
-use crate::error::*;
+use crate::helpers::*;
+use crate::s3::api_server::ResBody;
+use crate::s3::checksum::{add_checksum_response_headers, X_AMZ_CHECKSUM_MODE};
+use crate::s3::encryption::EncryptionParams;
+use crate::s3::error::*;

 const X_AMZ_MP_PARTS_COUNT: &str = "x-amz-mp-parts-count";

@ -69,11 +68,14 @@ fn object_headers(
 	// See: https://docs.aws.amazon.com/AmazonS3/latest/userguide/UsingMetadata.html
 	let mut headers_by_name = BTreeMap::new();
 	for (name, value) in meta_inner.headers.iter() {
-		let name_lower = name.to_ascii_lowercase();
-		headers_by_name
-			.entry(name_lower)
-			.or_insert(vec![])
-			.push(value.as_str());
+		match headers_by_name.get_mut(name) {
+			None => {
+				headers_by_name.insert(name, vec![value.as_str()]);
+			}
+			Some(headers) => {
+				headers.push(value.as_str());
+			}
+		}
 	}

 	for (name, values) in headers_by_name {
--- a/src/api/s3/lifecycle.rs
+++ b/src/api/s3/lifecycle.rs
@ -5,12 +5,11 @@ use hyper::{Request, Response, StatusCode};

 use serde::{Deserialize, Serialize};

-use garage_api_common::helpers::*;
-use garage_api_common::signature::verify_signed_content;
-
-use crate::api_server::{ReqBody, ResBody};
-use crate::error::*;
-use crate::xml::{to_xml_with_header, xmlns_tag, IntValue, Value};
+use crate::helpers::*;
+use crate::s3::api_server::{ReqBody, ResBody};
+use crate::s3::error::*;
+use crate::s3::xml::{to_xml_with_header, xmlns_tag, IntValue, Value};
+use crate::signature::verify_signed_content;

 use garage_model::bucket_table::{
 	parse_lifecycle_date, Bucket, LifecycleExpiration as GarageLifecycleExpiration,
--- a/src/api/s3/list.rs
+++ b/src/api/s3/list.rs
@ -13,14 +13,13 @@ use garage_model::s3::object_table::*;

 use garage_table::EnumerationOrder;

-use garage_api_common::encoding::*;
-use garage_api_common::helpers::*;
-
-use crate::api_server::{ReqBody, ResBody};
-use crate::encryption::EncryptionParams;
-use crate::error::*;
-use crate::multipart as s3_multipart;
-use crate::xml as s3_xml;
+use crate::encoding::*;
+use crate::helpers::*;
+use crate::s3::api_server::{ReqBody, ResBody};
+use crate::s3::encryption::EncryptionParams;
+use crate::s3::error::*;
+use crate::s3::multipart as s3_multipart;
+use crate::s3::xml as s3_xml;

 const DUMMY_NAME: &str = "Dummy Key";
 const DUMMY_KEY: &str = "GKDummyKey";
--- a/src/api/s3/mod.rs
+++ b/src/api/s3/mod.rs
@ -1,6 +1,3 @@
-#[macro_use]
-extern crate tracing;
-
 pub mod api_server;
 pub mod error;

--- a/src/api/s3/multipart.rs
+++ b/src/api/s3/multipart.rs
@ -15,15 +15,14 @@ use garage_model::s3::mpu_table::*;
 use garage_model::s3::object_table::*;
 use garage_model::s3::version_table::*;

-use garage_api_common::helpers::*;
-use garage_api_common::signature::verify_signed_content;
-
-use crate::api_server::{ReqBody, ResBody};
-use crate::checksum::*;
-use crate::encryption::EncryptionParams;
-use crate::error::*;
-use crate::put::*;
-use crate::xml as s3_xml;
+use crate::helpers::*;
+use crate::s3::api_server::{ReqBody, ResBody};
+use crate::s3::checksum::*;
+use crate::s3::encryption::EncryptionParams;
+use crate::s3::error::*;
+use crate::s3::put::*;
+use crate::s3::xml as s3_xml;
+use crate::signature::verify_signed_content;

 // ----

--- a/src/api/s3/post_object.rs
+++ b/src/api/s3/post_object.rs
@ -16,16 +16,15 @@ use serde::Deserialize;
 use garage_model::garage::Garage;
 use garage_model::s3::object_table::*;

-use garage_api_common::cors::*;
-use garage_api_common::helpers::*;
-use garage_api_common::signature::payload::{verify_v4, Authorization};
-
-use crate::api_server::ResBody;
-use crate::checksum::*;
-use crate::encryption::EncryptionParams;
-use crate::error::*;
-use crate::put::{get_headers, save_stream, ChecksumMode};
-use crate::xml as s3_xml;
+use crate::helpers::*;
+use crate::s3::api_server::ResBody;
+use crate::s3::checksum::*;
+use crate::s3::cors::*;
+use crate::s3::encryption::EncryptionParams;
+use crate::s3::error::*;
+use crate::s3::put::{get_headers, save_stream, ChecksumMode};
+use crate::s3::xml as s3_xml;
+use crate::signature::payload::{verify_v4, Authorization};

 pub async fn handle_post_object(
 	garage: Arc<Garage>,
@ -108,8 +107,7 @@ pub async fn handle_post_object(
 	let bucket_id = garage
 		.bucket_helper()
 		.resolve_bucket(&bucket_name, &api_key)
-		.await
-		.map_err(pass_helper_error)?;
+		.await?;

 	if !api_key.allow_write(&bucket_id) {
 		return Err(Error::forbidden("Operation is not allowed for this key."));
--- a/src/api/s3/put.rs
+++ b/src/api/s3/put.rs
@ -30,12 +30,11 @@ use garage_model::s3::block_ref_table::*;
 use garage_model::s3::object_table::*;
 use garage_model::s3::version_table::*;

-use garage_api_common::helpers::*;
-
-use crate::api_server::{ReqBody, ResBody};
-use crate::checksum::*;
-use crate::encryption::EncryptionParams;
-use crate::error::*;
+use crate::helpers::*;
+use crate::s3::api_server::{ReqBody, ResBody};
+use crate::s3::checksum::*;
+use crate::s3::encryption::EncryptionParams;
+use crate::s3::error::*;

 const PUT_BLOCKS_MAX_PARALLEL: usize = 3;

@ -623,7 +622,7 @@ pub(crate) fn get_headers(headers: &HeaderMap<HeaderValue>) -> Result<HeaderList
 	for (name, value) in headers.iter() {
 		if name.as_str().starts_with("x-amz-meta-") {
 			ret.push((
-				name.as_str().to_ascii_lowercase(),
+				name.to_string(),
 				std::str::from_utf8(value.as_bytes())?.to_string(),
 			));
 		}
--- a/src/api/s3/router.rs
+++ b/src/api/s3/router.rs
@ -3,10 +3,9 @@ use std::borrow::Cow;
 use hyper::header::HeaderValue;
 use hyper::{HeaderMap, Method, Request};

-use garage_api_common::helpers::Authorization;
-use garage_api_common::router_macros::{generateQueryParameters, router_match};
-
-use crate::error::*;
+use crate::helpers::Authorization;
+use crate::router_macros::{generateQueryParameters, router_match};
+use crate::s3::error::*;

 router_match! {@func

--- a/src/api/s3/website.rs
+++ b/src/api/s3/website.rs
@ -4,16 +4,15 @@ use http_body_util::BodyExt;
 use hyper::{Request, Response, StatusCode};
 use serde::{Deserialize, Serialize};

+use crate::helpers::*;
+use crate::s3::api_server::{ReqBody, ResBody};
+use crate::s3::error::*;
+use crate::s3::xml::{to_xml_with_header, xmlns_tag, IntValue, Value};
+use crate::signature::verify_signed_content;
+
 use garage_model::bucket_table::*;
 use garage_util::data::*;

-use garage_api_common::helpers::*;
-use garage_api_common::signature::verify_signed_content;
-
-use crate::api_server::{ReqBody, ResBody};
-use crate::error::*;
-use crate::xml::{to_xml_with_header, xmlns_tag, IntValue, Value};
-
 pub async fn handle_get_website(ctx: ReqCtx) -> Result<Response<ResBody>, Error> {
 	let ReqCtx { bucket_params, .. } = ctx;
 	if let Some(website) = bucket_params.website_config.get() {
--- a/src/api/s3/xml.rs
+++ b/src/api/s3/xml.rs
@ -1,7 +1,7 @@
 use quick_xml::se::to_string;
 use serde::{Deserialize, Serialize, Serializer};

-use crate::error::Error as ApiError;
+use crate::s3::error::Error as ApiError;

 pub fn to_xml_with_header<T: Serialize>(x: &T) -> Result<String, ApiError> {
 	let mut xml = r#"<?xml version="1.0" encoding="UTF-8"?>"#.to_string();
--- a/src/api/common/signature/error.rs
+++ b/src/api/common/signature/error.rs
--- a/src/api/common/signature/mod.rs
+++ b/src/api/common/signature/mod.rs
--- a/src/api/common/signature/payload.rs
+++ b/src/api/common/signature/payload.rs
@ -518,7 +518,7 @@ impl Authorization {
 		})
 	}

-	pub fn parse_form(params: &HeaderMap) -> Result<Self, Error> {
+	pub(crate) fn parse_form(params: &HeaderMap) -> Result<Self, Error> {
 		let algorithm = params
 			.get(X_AMZ_ALGORITHM)
 			.ok_or_bad_request("Missing X-Amz-Algorithm header")?
--- a/src/api/common/signature/streaming.rs
+++ b/src/api/common/signature/streaming.rs
--- a/src/block/Cargo.toml
+++ b/src/block/Cargo.toml
@ -34,8 +34,10 @@ async-compression.workspace = true
 zstd.workspace = true

 serde.workspace = true
+serde_bytes.workspace = true

 futures.workspace = true
+futures-util.workspace = true
 tokio.workspace = true
 tokio-util.workspace = true

--- a/src/db/Cargo.toml
+++ b/src/db/Cargo.toml
@ -13,6 +13,7 @@ path = "lib.rs"

 [dependencies]
 err-derive.workspace = true
+hexdump.workspace = true
 tracing.workspace = true

 heed = { workspace = true, optional = true }
--- a/src/db/sqlite_adapter.rs
+++ b/src/db/sqlite_adapter.rs
@ -144,12 +144,9 @@ impl IDb for SqliteDb {
 			let percent = (p.pagecount - p.remaining) * 100 / p.pagecount;
 			info!("Sqlite snapshot progress: {}%", percent);
 		}
-		std::fs::create_dir_all(to)?;
-		let mut path = to.clone();
-		path.push("db.sqlite");
 		self.db
 			.get()?
-			.backup(rusqlite::DatabaseName::Main, path, Some(progress))?;
+			.backup(rusqlite::DatabaseName::Main, to, Some(progress))?;
 		Ok(())
 	}

--- a/src/garage/Cargo.toml
+++ b/src/garage/Cargo.toml
@ -23,9 +23,7 @@ path = "tests/lib.rs"
 [dependencies]
 format_table.workspace = true
 garage_db.workspace = true
-garage_api_admin.workspace = true
-garage_api_s3.workspace = true
-garage_api_k2v = { workspace = true, optional = true }
+garage_api.workspace = true
 garage_block.workspace = true
 garage_model.workspace = true
 garage_net.workspace = true
@ -42,6 +40,7 @@ parse_duration.workspace = true
 hex.workspace = true
 tracing.workspace = true
 tracing-subscriber.workspace = true
+rand.workspace = true
 async-trait.workspace = true
 sha1.workspace = true
 sodiumoxide.workspace = true
@ -49,18 +48,21 @@ structopt.workspace = true
 git-version.workspace = true

 serde.workspace = true
+serde_bytes.workspace = true
+toml.workspace = true

 futures.workspace = true
+futures-util.workspace = true
 tokio.workspace = true

 opentelemetry.workspace = true
 opentelemetry-prometheus = { workspace = true, optional = true }
 opentelemetry-otlp = { workspace = true, optional = true }
+prometheus = { workspace = true, optional = true }
 syslog-tracing = { workspace = true, optional = true }

 [dev-dependencies]
-garage_api_common.workspace = true
-
+aws-config.workspace = true
 aws-sdk-s3.workspace = true
 chrono.workspace = true
 http.workspace = true
@ -82,7 +84,7 @@ k2v-client.workspace = true
 [features]
 default = [ "bundled-libs", "metrics", "lmdb", "sqlite", "k2v" ]

-k2v = [ "garage_util/k2v", "garage_api_k2v" ]
+k2v = [ "garage_util/k2v", "garage_api/k2v" ]

 # Database engines
 lmdb = [ "garage_model/lmdb" ]
@ -93,7 +95,7 @@ consul-discovery = [ "garage_rpc/consul-discovery" ]
 # Automatic registration and discovery via Kubernetes API
 kubernetes-discovery = [ "garage_rpc/kubernetes-discovery" ]
 # Prometheus exporter (/metrics endpoint).
-metrics = [ "garage_api_admin/metrics", "opentelemetry-prometheus" ]
+metrics = [ "garage_api/metrics", "opentelemetry-prometheus", "prometheus" ]
 # Exporter for the OpenTelemetry Collector.
 telemetry-otlp = [ "opentelemetry-otlp" ]
 # Logging to syslog
--- a/src/garage/admin/mod.rs
+++ b/src/garage/admin/mod.rs
@ -482,7 +482,7 @@ impl AdminRpcHandler {
 							AdminRpc::MetaOperation(MetaOperation::Snapshot { all: false }),
 							PRIO_NORMAL,
 						)
-						.await
+						.await?
 				}))
 				.await;

@ -495,7 +495,14 @@ impl AdminRpcHandler {
 					ret.push(format!("{:?}\t{}", to, res_str));
 				}

-				Ok(AdminRpc::Ok(format_table_to_string(ret)))
+				if resps.iter().any(|resp| match resp {
+					Err(_) => true,
+					Ok(_) => false,
+				}) {
+					Err(Error::BadRequest(format_table_to_string(ret)).into())
+				} else {
+					Ok(AdminRpc::Ok(format_table_to_string(ret)))
+				}
 			}
 			MetaOperation::Snapshot { all: false } => {
 				garage_model::snapshot::async_snapshot_metadata(&self.garage).await?;
--- a/src/garage/server.rs
+++ b/src/garage/server.rs
@ -6,13 +6,13 @@ use garage_util::background::*;
 use garage_util::config::*;
 use garage_util::error::Error;

-use garage_api_admin::api_server::AdminApiServer;
-use garage_api_s3::api_server::S3ApiServer;
+use garage_api::admin::api_server::AdminApiServer;
+use garage_api::s3::api_server::S3ApiServer;
 use garage_model::garage::Garage;
 use garage_web::WebServer;

 #[cfg(feature = "k2v")]
-use garage_api_k2v::api_server::K2VApiServer;
+use garage_api::k2v::api_server::K2VApiServer;

 use crate::admin::*;
 use crate::secrets::{fill_secrets, Secrets};
--- a/src/garage/tests/common/custom_requester.rs
+++ b/src/garage/tests/common/custom_requester.rs
@ -15,7 +15,7 @@ use hyper_util::client::legacy::{connect::HttpConnector, Client};
 use hyper_util::rt::TokioExecutor;

 use super::garage::{Instance, Key};
-use garage_api_common::signature;
+use garage_api::signature;

 pub type Body = FullBody<hyper::body::Bytes>;

--- a/src/k2v-client/Cargo.toml
+++ b/src/k2v-client/Cargo.toml
@ -29,11 +29,12 @@ tokio.workspace = true
 # cli deps
 clap = { workspace = true, optional = true }
 format_table = { workspace = true, optional = true }
+tracing = { workspace = true, optional = true }
 tracing-subscriber = { workspace = true, optional = true }


 [features]
-cli = ["clap", "tokio/fs", "tokio/io-std", "tracing-subscriber", "format_table"]
+cli = ["clap", "tokio/fs", "tokio/io-std", "tracing", "tracing-subscriber", "format_table"]

 [lib]
 path = "lib.rs"
--- a/src/model/Cargo.toml
+++ b/src/model/Cargo.toml
@ -22,6 +22,7 @@ garage_util.workspace = true
 garage_net.workspace = true

 async-trait.workspace = true
+arc-swap.workspace = true
 blake2.workspace = true
 chrono.workspace = true
 err-derive.workspace = true
@ -37,7 +38,9 @@ serde.workspace = true
 serde_bytes.workspace = true

 futures.workspace = true
+futures-util.workspace = true
 tokio.workspace = true
+opentelemetry.workspace = true

 [features]
 default = [ "lmdb", "sqlite" ]
--- a/src/model/k2v/causality.rs
+++ b/src/model/k2v/causality.rs
@ -16,6 +16,8 @@ use serde::{Deserialize, Serialize};

 use garage_util::data::*;

+use crate::helper::error::{Error as HelperError, OkOrBadRequest};
+
 /// Node IDs used in K2V are u64 integers that are the abbreviation
 /// of full Garage node IDs which are 256-bit UUIDs.
 pub type K2VNodeId = u64;
@ -97,6 +99,10 @@ impl CausalContext {
 		Some(ret)
 	}

+	pub fn parse_helper(s: &str) -> Result<Self, HelperError> {
+		Self::parse(s).ok_or_bad_request("Invalid causality token")
+	}
+
 	/// Check if this causal context contains newer items than another one
 	pub fn is_newer_than(&self, other: &Self) -> bool {
 		vclock_gt(&self.vector_clock, &other.vector_clock)
--- a/src/model/snapshot.rs
+++ b/src/model/snapshot.rs
@ -41,14 +41,8 @@ pub fn snapshot_metadata(garage: &Garage) -> Result<(), Error> {
 		}
 	};

-	let snapshots_dir = match &garage.config.metadata_snapshots_dir {
-		Some(d) => d.clone(),
-		None => {
-			let mut default_snapshots_dir = garage.config.metadata_dir.clone();
-			default_snapshots_dir.push("snapshots");
-			default_snapshots_dir
-		}
-	};
+	let mut snapshots_dir = garage.config.metadata_dir.clone();
+	snapshots_dir.push("snapshots");
 	fs::create_dir_all(&snapshots_dir)?;

 	let mut new_path = snapshots_dir.clone();
--- a/src/rpc/Cargo.toml
+++ b/src/rpc/Cargo.toml
@ -15,10 +15,12 @@ path = "lib.rs"

 [dependencies]
 format_table.workspace = true
+garage_db.workspace = true
 garage_util.workspace = true
 garage_net.workspace = true

 arc-swap.workspace = true
+bytes.workspace = true
 bytesize.workspace = true
 gethostname.workspace = true
 hex.workspace = true
@ -44,7 +46,9 @@ reqwest = { workspace = true, optional = true }
 pnet_datalink.workspace = true

 futures.workspace = true
+futures-util.workspace = true
 tokio.workspace = true
+tokio-stream.workspace = true
 opentelemetry.workspace = true

 [features]
--- a/src/table/Cargo.toml
+++ b/src/table/Cargo.toml
@ -22,6 +22,7 @@ opentelemetry.workspace = true

 async-trait.workspace = true
 arc-swap.workspace = true
+bytes.workspace = true
 hex.workspace = true
 hexdump.workspace = true
 tracing.workspace = true
--- a/src/table/table.rs
+++ b/src/table/table.rs
@ -204,10 +204,6 @@ impl<F: TableSchema, R: TableReplication> Table<F, R> {
 			entries_vec.push((write_sets, e_enc));
 		}

-		if entries_vec.is_empty() {
-			return Ok(());
-		}
-
 		// Compute a deduplicated list of all of the write sets,
 		// and compute an index from each node to the position of the sets in which
 		// it takes part, to optimize the detection of a quorum.
--- a/src/util/Cargo.toml
+++ b/src/util/Cargo.toml
@ -20,7 +20,9 @@ garage_net.workspace = true
 arc-swap.workspace = true
 async-trait.workspace = true
 blake2.workspace = true
+bytes.workspace = true
 bytesize.workspace = true
+digest.workspace = true
 err-derive.workspace = true
 hexdump.workspace = true
 xxhash-rust.workspace = true
--- a/src/util/config.rs
+++ b/src/util/config.rs
@ -31,9 +31,6 @@ pub struct Config {
 	#[serde(default)]
 	pub use_local_tz: bool,

-	/// Optional directory where metadata snapshots will be store
-	pub metadata_snapshots_dir: Option<PathBuf>,
-
 	/// Automatic snapshot interval for metadata
 	#[serde(default)]
 	pub metadata_auto_snapshot_interval: Option<String>,
--- a/src/web/Cargo.toml
+++ b/src/web/Cargo.toml
@ -14,8 +14,7 @@ path = "lib.rs"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

 [dependencies]
-garage_api_common.workspace = true
-garage_api_s3.workspace = true
+garage_api.workspace = true
 garage_model.workspace = true
 garage_util.workspace = true
 garage_table.workspace = true
@ -24,9 +23,12 @@ err-derive.workspace = true
 tracing.workspace = true
 percent-encoding.workspace = true

+futures.workspace = true
+
 http.workspace = true
 http-body-util.workspace = true
 hyper.workspace = true
+hyper-util.workspace = true

 tokio.workspace = true

--- a/src/web/error.rs
+++ b/src/web/error.rs
@ -2,14 +2,14 @@ use err_derive::Error;
 use hyper::header::HeaderValue;
 use hyper::{HeaderMap, StatusCode};

-use garage_api_common::generic_server::ApiError;
+use garage_api::generic_server::ApiError;

 /// Errors of this crate
 #[derive(Debug, Error)]
 pub enum Error {
 	/// An error received from the API crate
 	#[error(display = "API error: {}", _0)]
-	ApiError(garage_api_s3::error::Error),
+	ApiError(garage_api::s3::error::Error),

 	/// The file does not exist
 	#[error(display = "Not found")]
@ -22,10 +22,10 @@ pub enum Error {

 impl<T> From<T> for Error
 where
-	garage_api_s3::error::Error: From<T>,
+	garage_api::s3::error::Error: From<T>,
 {
 	fn from(err: T) -> Self {
-		Error::ApiError(garage_api_s3::error::Error::from(err))
+		Error::ApiError(garage_api::s3::error::Error::from(err))
 	}
 }

--- a/src/web/web_server.rs
+++ b/src/web/web_server.rs
@ -20,15 +20,13 @@ use opentelemetry::{

 use crate::error::*;

-use garage_api_common::cors::{
-	add_cors_headers, find_matching_cors_rule, handle_options_for_bucket,
-};
-use garage_api_common::generic_server::{server_loop, UnixListenerOn};
-use garage_api_common::helpers::*;
-use garage_api_s3::error::{
+use garage_api::generic_server::{server_loop, UnixListenerOn};
+use garage_api::helpers::*;
+use garage_api::s3::cors::{add_cors_headers, find_matching_cors_rule, handle_options_for_bucket};
+use garage_api::s3::error::{
 	CommonErrorDerivative, Error as ApiError, OkOrBadRequest, OkOrInternalError,
 };
-use garage_api_s3::get::{handle_get_without_ctx, handle_head_without_ctx};
+use garage_api::s3::get::{handle_get_without_ctx, handle_head_without_ctx};

 use garage_model::garage::Garage;