forked from Deuxfleurs/garage
doc: improve navigation in configuration reference
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4 changed files with 100 additions and 43 deletions
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@ -38,7 +38,7 @@ Our website serving logic is as follow:
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Now we need to infer the URL of your website through your bucket name.
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Let assume:
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- we set `root_domain = ".web.example.com"` in `garage.toml` ([ref](@/documentation/reference-manual/configuration.md#root_domain))
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- we set `root_domain = ".web.example.com"` in `garage.toml` ([ref](@/documentation/reference-manual/configuration.md#web_root_domain))
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- our bucket name is `garagehq.deuxfleurs.fr`.
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Our bucket will be served if the Host field matches one of these 2 values (the port is ignored):
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@ -12,7 +12,7 @@ An introduction to building cluster layouts can be found in the [production depl
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In Garage, all of the data that can be stored in a given cluster is divided
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into slices which we call *partitions*. Each partition is stored by
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one or several nodes in the cluster
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(see [`replication_mode`](@/documentation/reference-manual/configuration.md#replication-mode)).
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(see [`replication_mode`](@/documentation/reference-manual/configuration.md#replication_mode)).
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The layout determines the correspondence between these partition,
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which exist on a logical level, and actual storage nodes.
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@ -77,7 +77,64 @@ The following gives details about each available configuration option.
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## Available configuration options
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### `metadata_dir`
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### Index
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Top-level configuration options:
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[`block_size`](#block_size),
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[`bootstrap_peers`](#bootstrap_peers),
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[`compression_level`](#compression_level),
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[`data_dir`](#metadata_dir),
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[`data_fsync`](#data_fsync),
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[`db_engine`](#db_engine),
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[`lmdb_map_size`](#lmdb_map_size),
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[`metadata_dir`](#metadata_dir),
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[`metadata_fsync`](#metadata_fsync),
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[`replication_mode`](#replication_mode),
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[`rpc_bind_addr`](#rpc_bind_addr),
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[`rpc_public_addr`](#rpc_public_addr),
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[`rpc_secret`](#rpc_secret),
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[`rpc_secret_file`](#rpc_secret),
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[`sled_cache_capacity`](#sled_cache_capacity),
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[`sled_flush_every_ms`](#sled_flush_every_ms).
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The `[consul_discovery]` section:
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[`api`](#consul_api),
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[`ca_cert`](#consul_ca_cert),
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[`client_cert`](#consul_client_cert),
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[`client_key`](#consul_client_cert),
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[`consul_http_addr`](#consul_http_addr),
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[`meta`](#consul_tags),
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[`service_name`](#consul_service_name),
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[`tags`](#consul_tags),
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[`tls_skip_verify`](#consul_tls_skip_verify),
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[`token`](#consul_token).
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The `[kubernetes_discovery]` section:
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[`namespace`](#kube_namespace),
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[`service_name`](#kube_service_name),
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[`skip_crd`](#kube_skip_crd).
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The `[s3_api]` section:
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[`api_bind_addr`](#s3_api_bind_addr),
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[`root_domain`](#s3_root_domain),
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[`s3_region`](#s3_region).
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The `[s3_web]` section:
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[`bind_addr`](#web_bind_addr),
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[`root_domain`](#web_root_domain).
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The `[admin]` section:
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[`api_bind_addr`](#admin_api_bind_addr),
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[`metrics_token`](#admin_metrics_token),
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[`metrics_token_file`](#admin_metrics_token),
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[`admin_token`](#admin_token),
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[`admin_token_file`](#admin_token),
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[`trace_sink`](#admin_trace_sink),
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### Top-level configuration options
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#### `metadata_dir` {#metadata_dir}
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The directory in which Garage will store its metadata. This contains the node identifier,
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the network configuration and the peer list, the list of buckets and keys as well
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@ -85,7 +142,7 @@ as the index of all objects, object version and object blocks.
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Store this folder on a fast SSD drive if possible to maximize Garage's performance.
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### `data_dir`
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#### `data_dir` {#data_dir}
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The directory in which Garage will store the data blocks of objects.
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This folder can be placed on an HDD. The space available for `data_dir`
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@ -105,7 +162,7 @@ data_dir = [
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See [the dedicated documentation page](@/documentation/operations/multi-hdd.md)
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on how to operate Garage in such a setup.
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### `db_engine` (since `v0.8.0`)
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#### `db_engine` (since `v0.8.0`) {#db_engine}
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Since `v0.8.0`, Garage can use alternative storage backends as follows:
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@ -149,7 +206,7 @@ garage convert-db -a <input db engine> -i <input db path> \
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Make sure to specify the full database path as presented in the table above
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(third colummn), and not just the path to the metadata directory.
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### `metadata_fsync`
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#### `metadata_fsync` {#metadata_fsync}
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Whether to enable synchronous mode for the database engine or not.
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This is disabled (`false`) by default.
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@ -179,7 +236,7 @@ Here is how this option impacts the different database engines:
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Note that the Sqlite database is always ran in `WAL` mode (`PRAGMA journal_mode = WAL`).
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### `data_fsync`
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#### `data_fsync` {#data_fsync}
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Whether to `fsync` data blocks and their containing directory after they are
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saved to disk.
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@ -192,7 +249,7 @@ at the cost of a moderate drop in write performance.
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Similarly to `metatada_fsync`, this is likely not necessary
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if geographical replication is used.
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### `block_size`
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#### `block_size` {#block_size}
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Garage splits stored objects in consecutive chunks of size `block_size`
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(except the last one which might be smaller). The default size is 1MiB and
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@ -207,7 +264,7 @@ files will remain available. This however means that chunks from existing files
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will not be deduplicated with chunks from newly uploaded files, meaning you
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might use more storage space that is optimally possible.
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### `sled_cache_capacity`
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#### `sled_cache_capacity` {#sled_cache_capacity}
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This parameter can be used to tune the capacity of the cache used by
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[sled](https://sled.rs), the database Garage uses internally to store metadata.
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@ -215,14 +272,14 @@ Tune this to fit the RAM you wish to make available to your Garage instance.
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This value has a conservative default (128MB) so that Garage doesn't use too much
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RAM by default, but feel free to increase this for higher performance.
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### `sled_flush_every_ms`
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#### `sled_flush_every_ms` {#sled_flush_every_ms}
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This parameters can be used to tune the flushing interval of sled.
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Increase this if sled is thrashing your SSD, at the risk of losing more data in case
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of a power outage (though this should not matter much as data is replicated on other
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nodes). The default value, 2000ms, should be appropriate for most use cases.
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### `lmdb_map_size`
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#### `lmdb_map_size` {#lmdb_map_size}
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This parameters can be used to set the map size used by LMDB,
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which is the size of the virtual memory region used for mapping the database file.
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@ -230,7 +287,7 @@ The value of this parameter is the maximum size the metadata database can take.
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This value is not bound by the physical RAM size of the machine running Garage.
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If not specified, it defaults to 1GiB on 32-bit machines and 1TiB on 64-bit machines.
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### `replication_mode`
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#### `replication_mode` {#replication_mode}
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Garage supports the following replication modes:
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@ -313,7 +370,7 @@ to the cluster while rebalancing is in progress. In theory, no data should be
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lost as rebalancing is a routine operation for Garage, although we cannot
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guarantee you that everything will go right in such an extreme scenario.
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### `compression_level`
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#### `compression_level` {#compression_level}
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Zstd compression level to use for storing blocks.
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@ -337,7 +394,7 @@ Compression is done synchronously, setting a value too high will add latency to
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This value can be different between nodes, compression is done by the node which receive the
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API call.
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### `rpc_secret`, `rpc_secret_file` or `GARAGE_RPC_SECRET` (env)
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#### `rpc_secret`, `rpc_secret_file` or `GARAGE_RPC_SECRET` (env) {#rpc_secret}
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Garage uses a secret key, called an RPC secret, that is shared between all
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nodes of the cluster in order to identify these nodes and allow them to
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given in the configuration variable `rpc_secret_file`, or specified as an
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environment variable `GARAGE_RPC_SECRET`.
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### `rpc_bind_addr`
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#### `rpc_bind_addr` {#rpc_bind_addr}
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The address and port on which to bind for inter-cluster communcations
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(reffered to as RPC for remote procedure calls).
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@ -358,14 +415,14 @@ the node, even in the case of a NAT: the NAT should be configured to forward the
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port number to the same internal port nubmer. This means that if you have several nodes running
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behind a NAT, they should each use a different RPC port number.
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### `rpc_public_addr`
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#### `rpc_public_addr` {#rpc_public_addr}
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The address and port that other nodes need to use to contact this node for
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RPC calls. **This parameter is optional but recommended.** In case you have
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a NAT that binds the RPC port to a port that is different on your public IP,
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this field might help making it work.
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### `bootstrap_peers`
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#### `bootstrap_peers` {#bootstrap_peers}
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A list of peer identifiers on which to contact other Garage peers of this cluster.
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These peer identifiers have the following syntax:
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@ -382,42 +439,42 @@ key will be returned by `garage node id` and you will have to add the IP
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yourself.
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## The `[consul_discovery]` section
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### The `[consul_discovery]` section
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Garage supports discovering other nodes of the cluster using Consul. For this
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to work correctly, nodes need to know their IP address by which they can be
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reached by other nodes of the cluster, which should be set in `rpc_public_addr`.
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### `consul_http_addr` and `service_name`
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#### `consul_http_addr` {#consul_http_addr}
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The `consul_http_addr` parameter should be set to the full HTTP(S) address of the Consul server.
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### `api`
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#### `api` {#consul_api}
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Two APIs for service registration are supported: `catalog` and `agent`. `catalog`, the default, will register a service using
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the `/v1/catalog` endpoints, enabling mTLS if `client_cert` and `client_key` are provided. The `agent` API uses the
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`v1/agent` endpoints instead, where an optional `token` may be provided.
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### `service_name`
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#### `service_name` {#consul_service_name}
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`service_name` should be set to the service name under which Garage's
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RPC ports are announced.
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### `client_cert`, `client_key`
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#### `client_cert`, `client_key` {#consul_client_cert}
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TLS client certificate and client key to use when communicating with Consul over TLS. Both are mandatory when doing so.
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Only available when `api = "catalog"`.
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### `ca_cert`
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#### `ca_cert` {#consul_ca_cert}
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TLS CA certificate to use when communicating with Consul over TLS.
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### `tls_skip_verify`
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#### `tls_skip_verify` {#consul_tls_skip_verify}
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Skip server hostname verification in TLS handshake.
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`ca_cert` is ignored when this is set.
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### `token`
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#### `token` {#consul_token}
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Uses the provided token for communication with Consul. Only available when `api = "agent"`.
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The policy assigned to this token should at least have these rules:
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@ -437,49 +494,49 @@ node_prefix "" {
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}
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```
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### `tags` and `meta`
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#### `tags` and `meta` {#consul_tags}
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Additional list of tags and map of service meta to add during service registration.
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## The `[kubernetes_discovery]` section
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### The `[kubernetes_discovery]` section
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Garage supports discovering other nodes of the cluster using kubernetes custom
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resources. For this to work, a `[kubernetes_discovery]` section must be present
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with at least the `namespace` and `service_name` parameters.
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### `namespace`
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#### `namespace` {#kube_namespace}
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`namespace` sets the namespace in which the custom resources are
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configured.
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### `service_name`
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#### `service_name` {#kube_service_name}
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`service_name` is added as a label to the advertised resources to
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filter them, to allow for multiple deployments in a single namespace.
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### `skip_crd`
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#### `skip_crd` {#kube_skip_crd}
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`skip_crd` can be set to true to disable the automatic creation and
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patching of the `garagenodes.deuxfleurs.fr` CRD. You will need to create the CRD
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manually.
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## The `[s3_api]` section
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### The `[s3_api]` section
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### `api_bind_addr`
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#### `api_bind_addr` {#s3_api_bind_addr}
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The IP and port on which to bind for accepting S3 API calls.
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This endpoint does not suport TLS: a reverse proxy should be used to provide it.
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Alternatively, since `v0.8.5`, a path can be used to create a unix socket with 0222 mode.
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### `s3_region`
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#### `s3_region` {#s3_region}
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Garage will accept S3 API calls that are targetted to the S3 region defined here.
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API calls targetted to other regions will fail with a AuthorizationHeaderMalformed error
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message that redirects the client to the correct region.
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### `root_domain` {#root_domain}
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#### `root_domain` {#s3_root_domain}
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The optional suffix to access bucket using vhost-style in addition to path-style request.
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Note path-style requests are always enabled, whether or not vhost-style is configured.
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@ -491,12 +548,12 @@ using the hostname `my-bucket.s3.garage.eu`.
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## The `[s3_web]` section
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### The `[s3_web]` section
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Garage allows to publish content of buckets as websites. This section configures the
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behaviour of this module.
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### `bind_addr`
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#### `bind_addr` {#web_bind_addr}
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The IP and port on which to bind for accepting HTTP requests to buckets configured
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for website access.
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Alternatively, since `v0.8.5`, a path can be used to create a unix socket with 0222 mode.
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### `root_domain`
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#### `root_domain` {#web_root_domain}
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The optional suffix appended to bucket names for the corresponding HTTP Host.
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@ -513,11 +570,11 @@ will be accessible either with hostname `deuxfleurs.fr.web.garage.eu`
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or with hostname `deuxfleurs.fr`.
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## The `[admin]` section
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### The `[admin]` section
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Garage has a few administration capabilities, in particular to allow remote monitoring. These features are detailed below.
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### `api_bind_addr`
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#### `api_bind_addr` {#admin_api_bind_addr}
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If specified, Garage will bind an HTTP server to this port and address, on
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which it will listen to requests for administration features.
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Alternatively, since `v0.8.5`, a path can be used to create a unix socket. Note that for security reasons,
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the socket will have 0220 mode. Make sure to set user and group permissions accordingly.
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### `metrics_token`, `metrics_token_file` or `GARAGE_METRICS_TOKEN` (env)
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#### `metrics_token`, `metrics_token_file` or `GARAGE_METRICS_TOKEN` (env) {#admin_metrics_token}
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The token for accessing the Metrics endpoint. If this token is not set, the
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Metrics endpoint can be accessed without access control.
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`metrics_token_file` and the `GARAGE_METRICS_TOKEN` environment variable are supported since Garage `v0.8.2`.
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### `admin_token`, `admin_token_file` or `GARAGE_ADMIN_TOKEN` (env)
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#### `admin_token`, `admin_token_file` or `GARAGE_ADMIN_TOKEN` (env) {#admin_token}
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The token for accessing all of the other administration endpoints. If this
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token is not set, access to these endpoints is disabled entirely.
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@ -548,7 +605,7 @@ You can use any random string for this value. We recommend generating a random t
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`admin_token_file` and the `GARAGE_ADMIN_TOKEN` environment variable are supported since Garage `v0.8.2`.
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### `trace_sink`
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#### `trace_sink` {#admin_trace_sink}
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Optionally, the address of an OpenTelemetry collector. If specified,
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Garage will send traces in the OpenTelemetry format to this endpoint. These
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@ -52,7 +52,7 @@ This is particularly usefull when nodes are far from one another and talk to one
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Garage supports a variety of replication modes, with 1 copy, 2 copies or 3 copies of your data,
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and with various levels of consistency, in order to adapt to a variety of usage scenarios.
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Read our reference page on [supported replication modes](@/documentation/reference-manual/configuration.md#replication-mode)
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Read our reference page on [supported replication modes](@/documentation/reference-manual/configuration.md#replication_mode)
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to select the replication mode best suited to your use case (hint: in most cases, `replication_mode = "3"` is what you want).
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### Web server for static websites
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