Initial prototype
This commit is contained in:
Armaël Guéneau
commit
008eddb4ce
5 changed files with 557 additions and 0 deletions
2
.gitignore
vendored
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2
.gitignore
vendored
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@ -0,0 +1,2 @@
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/target
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*~
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225
Cargo.lock
generated
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225
Cargo.lock
generated
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@ -0,0 +1,225 @@
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||||||
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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||||||
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version = 3
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||||||
|
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||||||
|
[[package]]
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||||||
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name = "anyhow"
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||||||
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version = "1.0.91"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "c042108f3ed77fd83760a5fd79b53be043192bb3b9dba91d8c574c0ada7850c8"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
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name = "check_diplonat_conflicts"
|
||||||
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version = "0.1.0"
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||||||
|
dependencies = [
|
||||||
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"anyhow",
|
||||||
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"hcl-rs",
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||||||
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"serde",
|
||||||
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"serde-lexpr",
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||||||
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]
|
||||||
|
|
||||||
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[[package]]
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||||||
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name = "equivalent"
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||||||
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version = "1.0.1"
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||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
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checksum = "5443807d6dff69373d433ab9ef5378ad8df50ca6298caf15de6e52e24aaf54d5"
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||||||
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||||||
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[[package]]
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||||||
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name = "fnv"
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||||||
|
version = "1.0.7"
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||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
|
checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
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||||||
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||||||
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[[package]]
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||||||
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name = "hashbrown"
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||||||
|
version = "0.15.0"
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||||||
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source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
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checksum = "1e087f84d4f86bf4b218b927129862374b72199ae7d8657835f1e89000eea4fb"
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||||||
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||||||
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[[package]]
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||||||
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name = "hcl-edit"
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||||||
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version = "0.8.3"
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||||||
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source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
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checksum = "47a966f321ccf77cf6df2e600a3ebc8adb0b9d10acf3ed563fcf27efc69a7204"
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dependencies = [
|
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"fnv",
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||||||
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"hcl-primitives",
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||||||
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"vecmap-rs",
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||||||
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"winnow",
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]
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||||||
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[[package]]
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||||||
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name = "hcl-primitives"
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||||||
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version = "0.1.7"
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||||||
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "c48fcfd8788ffb4673ac4d3c914dfae15ceedc71d6c6975ab167f9da88a1f142"
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||||||
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dependencies = [
|
||||||
|
"itoa",
|
||||||
|
"kstring",
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"ryu",
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"serde",
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"unicode-ident",
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]
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||||||
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[[package]]
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||||||
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name = "hcl-rs"
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||||||
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version = "0.18.2"
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||||||
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source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
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checksum = "048bb0eadcf99b53625333e7b40591309d13c35074961307c80cbf8d4729c76d"
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dependencies = [
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"hcl-edit",
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"hcl-primitives",
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"indexmap",
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"itoa",
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"serde",
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"vecmap-rs",
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]
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[[package]]
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name = "indexmap"
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version = "2.6.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "707907fe3c25f5424cce2cb7e1cbcafee6bdbe735ca90ef77c29e84591e5b9da"
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dependencies = [
|
||||||
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"equivalent",
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"hashbrown",
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"serde",
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]
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[[package]]
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||||||
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name = "itoa"
|
||||||
|
version = "1.0.11"
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||||||
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source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
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checksum = "49f1f14873335454500d59611f1cf4a4b0f786f9ac11f4312a78e4cf2566695b"
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[[package]]
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name = "kstring"
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version = "2.0.2"
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||||||
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "558bf9508a558512042d3095138b1f7b8fe90c5467d94f9f1da28b3731c5dbd1"
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dependencies = [
|
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"serde",
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"static_assertions",
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]
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[[package]]
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name = "lexpr"
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version = "0.2.7"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "6a84de6a9df442363b08f5dbf0cd5b92edc70097b89c4ce4bfea4679fe48bc67"
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dependencies = [
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"itoa",
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"lexpr-macros",
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"ryu",
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]
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[[package]]
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name = "lexpr-macros"
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version = "0.2.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "36b5cb8bb985c81a8ac1a0f8b5c4865214f574ddd64397ef7a99c236e21f35bb"
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dependencies = [
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"proc-macro2",
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"quote",
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]
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[[package]]
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name = "memchr"
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version = "2.7.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "78ca9ab1a0babb1e7d5695e3530886289c18cf2f87ec19a575a0abdce112e3a3"
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[[package]]
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||||||
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name = "proc-macro2"
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||||||
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version = "1.0.89"
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||||||
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source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
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checksum = "f139b0662de085916d1fb67d2b4169d1addddda1919e696f3252b740b629986e"
|
||||||
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dependencies = [
|
||||||
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"unicode-ident",
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||||||
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]
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||||||
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[[package]]
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||||||
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name = "quote"
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||||||
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version = "1.0.37"
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||||||
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source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
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checksum = "b5b9d34b8991d19d98081b46eacdd8eb58c6f2b201139f7c5f643cc155a633af"
|
||||||
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dependencies = [
|
||||||
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"proc-macro2",
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]
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[[package]]
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name = "ryu"
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||||||
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version = "1.0.18"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "f3cb5ba0dc43242ce17de99c180e96db90b235b8a9fdc9543c96d2209116bd9f"
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||||||
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||||||
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[[package]]
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||||||
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name = "serde"
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||||||
|
version = "1.0.213"
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||||||
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source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
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checksum = "3ea7893ff5e2466df8d720bb615088341b295f849602c6956047f8f80f0e9bc1"
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||||||
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dependencies = [
|
||||||
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"serde_derive",
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]
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||||||
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||||||
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[[package]]
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||||||
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name = "serde-lexpr"
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||||||
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version = "0.1.3"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
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checksum = "bb4cda13396159f59e7946118cdac0beadeecfb7cf76b197f4147e546f4ead6f"
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||||||
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dependencies = [
|
||||||
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"lexpr",
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"serde",
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]
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||||||
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||||||
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[[package]]
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||||||
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name = "serde_derive"
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||||||
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version = "1.0.213"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
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checksum = "7e85ad2009c50b58e87caa8cd6dac16bdf511bbfb7af6c33df902396aa480fa5"
|
||||||
|
dependencies = [
|
||||||
|
"proc-macro2",
|
||||||
|
"quote",
|
||||||
|
"syn",
|
||||||
|
]
|
||||||
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|
||||||
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[[package]]
|
||||||
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name = "static_assertions"
|
||||||
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version = "1.1.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "syn"
|
||||||
|
version = "2.0.85"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "5023162dfcd14ef8f32034d8bcd4cc5ddc61ef7a247c024a33e24e1f24d21b56"
|
||||||
|
dependencies = [
|
||||||
|
"proc-macro2",
|
||||||
|
"quote",
|
||||||
|
"unicode-ident",
|
||||||
|
]
|
||||||
|
|
||||||
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[[package]]
|
||||||
|
name = "unicode-ident"
|
||||||
|
version = "1.0.13"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "e91b56cd4cadaeb79bbf1a5645f6b4f8dc5bde8834ad5894a8db35fda9efa1fe"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "vecmap-rs"
|
||||||
|
version = "0.2.2"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "e78fc839a22ab6c4e2f48cf5b935064188148258d467f49323134d503dd08294"
|
||||||
|
dependencies = [
|
||||||
|
"serde",
|
||||||
|
]
|
||||||
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|
||||||
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[[package]]
|
||||||
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name = "winnow"
|
||||||
|
version = "0.6.20"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "36c1fec1a2bb5866f07c25f68c26e565c4c200aebb96d7e55710c19d3e8ac49b"
|
||||||
|
dependencies = [
|
||||||
|
"memchr",
|
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]
|
||||||
12
Cargo.toml
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12
Cargo.toml
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[package]
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||||||
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name = "check_diplonat_conflicts"
|
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version = "0.1.0"
|
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edition = "2021"
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
|
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[dependencies]
|
||||||
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anyhow = "1.0.91"
|
||||||
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hcl-rs = "0.18.2"
|
||||||
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serde = "1.0.213"
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||||||
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serde-lexpr = "0.1.3"
|
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169
src/main.rs
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169
src/main.rs
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use serde::Deserialize;
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use std::{env,fs::File};
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use std::io::BufReader;
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use std::collections::{HashMap, HashSet};
|
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use std::path::{Path, PathBuf};
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use std::process::ExitCode;
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use anyhow::{anyhow, Result};
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mod parsing;
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use parsing::*;
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// TODO: add support for (builtin?) "external" port reservations
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// -> bespin, 80+443 pour forgejo
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// #[derive(Deserialize, Debug)]
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// struct Config {
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// #[serde(rename = "task")]
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// tasks: hcl::Map<String, Task>,
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// }
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|
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// #[derive(Deserialize, Debug)]
|
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// struct Task {
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// #[serde(rename = "service")]
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// services: Service,
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// }
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// #[derive(Deserialize, Debug)]
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// struct Service {
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// name: String,
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// }
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// #[derive(Debug)]
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// struct HclVec<T>(Vec<T>);
|
||||||
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||||||
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// parses a diplonat port parameter: ({tcp,udp}_port XX YY...)
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|
// matches `DiplonatParameter` in diplonat (`src/consul_actor.rs`)
|
||||||
|
#[derive(Deserialize, Debug)]
|
||||||
|
enum DiplonatParameter {
|
||||||
|
#[serde(rename = "tcp_port")]
|
||||||
|
TcpPort(HashSet<u16>),
|
||||||
|
#[serde(rename = "udp_port")]
|
||||||
|
UdpPort(HashSet<u16>),
|
||||||
|
}
|
||||||
|
|
||||||
|
// parses a diplonat consul tag: (diplonat <param>...)
|
||||||
|
// matches `DiplonatConsul` in diplonat (`src/consul_actor.rs`)
|
||||||
|
#[derive(Deserialize, Debug)]
|
||||||
|
enum DiplonatTag {
|
||||||
|
#[serde(rename = "diplonat")]
|
||||||
|
Diplonat(Vec<DiplonatParameter>),
|
||||||
|
}
|
||||||
|
|
||||||
|
struct Ctx {
|
||||||
|
// Maps datacenter+port to corresponding registrations.
|
||||||
|
// If there is more than one registration, then there is a conflict.
|
||||||
|
ports: HashMap<(String, Port), Vec<PortRegistration>>,
|
||||||
|
}
|
||||||
|
|
||||||
|
#[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
|
||||||
|
enum Port { Udp(u16), Tcp(u16) }
|
||||||
|
|
||||||
|
#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord)]
|
||||||
|
struct PortRegistration {
|
||||||
|
file: PathBuf,
|
||||||
|
job: String,
|
||||||
|
group: String,
|
||||||
|
task: String,
|
||||||
|
service: String,
|
||||||
|
}
|
||||||
|
|
||||||
|
impl Ctx {
|
||||||
|
pub fn new() -> Self {
|
||||||
|
Ctx { ports: HashMap::new() }
|
||||||
|
}
|
||||||
|
|
||||||
|
// ingest a whole .hcl file
|
||||||
|
pub fn add_file(&mut self, file: &Path) -> anyhow::Result<()> {
|
||||||
|
let cfg: Config = {
|
||||||
|
let file = File::open(file)?;
|
||||||
|
let body: hcl::Body = hcl::from_reader(BufReader::new(file))?;
|
||||||
|
Config::from_body(&body).map_err(|s| anyhow!("{}", s))?
|
||||||
|
};
|
||||||
|
|
||||||
|
for (jobname, job) in cfg.jobs {
|
||||||
|
for (groupname, group) in job.groups {
|
||||||
|
for (taskname, task) in group.tasks {
|
||||||
|
for service in task.services {
|
||||||
|
for tag in service.tags {
|
||||||
|
let diplo_conf: serde_lexpr::error::Result<DiplonatTag> =
|
||||||
|
serde_lexpr::from_str(&tag);
|
||||||
|
if let Ok(conf) = diplo_conf {
|
||||||
|
self.add_diplonat_tag(
|
||||||
|
conf,
|
||||||
|
&job.datacenters,
|
||||||
|
PortRegistration {
|
||||||
|
file: PathBuf::from(file),
|
||||||
|
job: jobname.clone(),
|
||||||
|
group: groupname.clone(),
|
||||||
|
task: taskname.clone(),
|
||||||
|
service: service.name.clone(),
|
||||||
|
}
|
||||||
|
);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
Ok(())
|
||||||
|
}
|
||||||
|
|
||||||
|
// helper function: ingest a diplonat tag, of the form "(diplonat (tcp_port XX YY) (udp_port ZZ UU))"
|
||||||
|
fn add_diplonat_tag(&mut self, tag: DiplonatTag, datacenters: &[String], reg: PortRegistration) {
|
||||||
|
let DiplonatTag::Diplonat(params) = tag;
|
||||||
|
for datacenter in datacenters {
|
||||||
|
for param in ¶ms {
|
||||||
|
match param {
|
||||||
|
DiplonatParameter::TcpPort(ports) => {
|
||||||
|
for &p in ports {
|
||||||
|
self.add_port(Port::Tcp(p), datacenter.clone(), reg.clone())
|
||||||
|
}
|
||||||
|
},
|
||||||
|
DiplonatParameter::UdpPort(ports) => {
|
||||||
|
for &p in ports {
|
||||||
|
self.add_port(Port::Udp(p), datacenter.clone(), reg.clone())
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// helper function: insert a port+datacenter+registration info
|
||||||
|
fn add_port(&mut self, p: Port, datacenter: String, reg: PortRegistration) {
|
||||||
|
let k = (datacenter, p);
|
||||||
|
match self.ports.get_mut(&k) {
|
||||||
|
None => { self.ports.insert(k, vec![reg]); },
|
||||||
|
Some(ports) => ports.push(reg)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn main() -> Result<ExitCode> {
|
||||||
|
let args: Vec<_> = env::args().collect();
|
||||||
|
if args.len() <= 1 {
|
||||||
|
eprintln!("usage: {} <file.hcl>...", args[0]);
|
||||||
|
return Ok(ExitCode::FAILURE)
|
||||||
|
}
|
||||||
|
|
||||||
|
let mut ctx = Ctx::new();
|
||||||
|
for file in &args[1..] {
|
||||||
|
ctx.add_file(Path::new(file))?
|
||||||
|
}
|
||||||
|
|
||||||
|
let mut have_conflicts = false;
|
||||||
|
for ((datacenter, port), regs) in ctx.ports {
|
||||||
|
if regs.len() > 1 {
|
||||||
|
have_conflicts = true;
|
||||||
|
println!("Conflict in site {}, port {:?}:", &datacenter, port);
|
||||||
|
for reg in ®s {
|
||||||
|
println!("- in {}, job \"{}\", group \"{}\", task \"{}\", service \"{}\"",
|
||||||
|
reg.file.display(), reg.job, reg.group, reg.task, reg.service)
|
||||||
|
}
|
||||||
|
println!()
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
Ok(if have_conflicts { ExitCode::FAILURE } else { ExitCode::SUCCESS })
|
||||||
|
}
|
||||||
149
src/parsing.rs
Normal file
149
src/parsing.rs
Normal file
|
|
@ -0,0 +1,149 @@
|
||||||
|
use serde::Deserialize;
|
||||||
|
use hcl::{Structure, Body, Map, Expression};
|
||||||
|
|
||||||
|
#[derive(Deserialize, Debug)]
|
||||||
|
pub struct Config {
|
||||||
|
#[serde(rename = "job")]
|
||||||
|
pub jobs: hcl::Map<String, Job>,
|
||||||
|
}
|
||||||
|
|
||||||
|
#[derive(Deserialize, Debug)]
|
||||||
|
pub struct Job {
|
||||||
|
pub datacenters: Vec<String>,
|
||||||
|
#[serde(rename = "group")]
|
||||||
|
pub groups: hcl::Map<String, Group>,
|
||||||
|
}
|
||||||
|
|
||||||
|
#[derive(Deserialize, Debug)]
|
||||||
|
pub struct Group {
|
||||||
|
#[serde(rename = "task")]
|
||||||
|
pub tasks: hcl::Map<String, Task>,
|
||||||
|
}
|
||||||
|
|
||||||
|
#[derive(Deserialize, Debug)]
|
||||||
|
pub struct Task {
|
||||||
|
#[serde(rename = "service")]
|
||||||
|
pub services: Vec<Service>,
|
||||||
|
}
|
||||||
|
|
||||||
|
#[derive(Deserialize, Debug)]
|
||||||
|
pub struct Service {
|
||||||
|
pub name: String,
|
||||||
|
pub tags: Vec<String>,
|
||||||
|
}
|
||||||
|
|
||||||
|
// lots of manual boilerplate because I can't figure out how to use the
|
||||||
|
// automated deserialization for blocks without labels (e.g. "service") that may
|
||||||
|
// appear one or several times:
|
||||||
|
// https://github.com/martinohmann/hcl-rs/issues/380
|
||||||
|
|
||||||
|
impl Config {
|
||||||
|
pub fn from_body(b: &Body) -> Result<Self, String> {
|
||||||
|
Ok(Config { jobs: blocks_from_body(b, "job", Job::from_body)? })
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
impl Job {
|
||||||
|
fn from_body(b: &Body) -> Result<Self, String> {
|
||||||
|
let datacenters =
|
||||||
|
strings_from_expr(&attribute_from_body(b, "datacenters")?)?;
|
||||||
|
let groups = blocks_from_body(b, "group", Group::from_body)?;
|
||||||
|
Ok(Job { datacenters, groups })
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
impl Group {
|
||||||
|
fn from_body(b: &Body) -> Result<Self, String> {
|
||||||
|
Ok(Group { tasks: blocks_from_body(b, "task", Task::from_body)? })
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
impl Task {
|
||||||
|
fn from_body(b: &Body) -> Result<Self, String> {
|
||||||
|
Ok(Task { services: blocks_nolabel_from_body(b, "service", Service::from_body)? })
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
impl Service {
|
||||||
|
fn from_body(b: &Body) -> Result<Self, String> {
|
||||||
|
let name = string_from_expr(&attribute_from_body(b, "name")?)?;
|
||||||
|
let tags = match attribute_from_body(b, "tags") {
|
||||||
|
Err(_) => Vec::new(),
|
||||||
|
Ok(tags) => tags_from_expr(&tags)?,
|
||||||
|
};
|
||||||
|
Ok(Service { name, tags })
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn blocks_from_body<T, F>(b: &Body, id: &str, f: F) -> Result<Map<String, T>, String>
|
||||||
|
where F: Fn(&Body) -> Result<T, String>
|
||||||
|
{
|
||||||
|
let mut blocks = Map::new();
|
||||||
|
for s in &b.0 {
|
||||||
|
if let Structure::Block(block) = s {
|
||||||
|
if block.identifier.as_str() == id {
|
||||||
|
if block.labels.len() != 1 {
|
||||||
|
return Err(format!("{} block: unexpected number of labels", id))
|
||||||
|
}
|
||||||
|
blocks.insert(block.labels[0].as_str().to_string(), f(&block.body)?);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
Ok(blocks)
|
||||||
|
}
|
||||||
|
|
||||||
|
fn blocks_nolabel_from_body<T, F>(b: &Body, id: &str, f: F) -> Result<Vec<T>, String>
|
||||||
|
where F: Fn(&Body) -> Result<T, String>
|
||||||
|
{
|
||||||
|
let mut blocks = Vec::new();
|
||||||
|
for s in &b.0 {
|
||||||
|
if let Structure::Block(block) = s {
|
||||||
|
if block.identifier.as_str() == id {
|
||||||
|
blocks.push(f(&block.body)?)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
Ok(blocks)
|
||||||
|
}
|
||||||
|
|
||||||
|
fn attribute_from_body(b: &Body, name: &str) -> Result<Expression, String>
|
||||||
|
{
|
||||||
|
b.0.iter().find_map(|s| {
|
||||||
|
if let Structure::Attribute(attr) = s {
|
||||||
|
if attr.key.as_str() == name {
|
||||||
|
return Some(attr.expr.clone())
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return None
|
||||||
|
}).ok_or(format!("attribute {} not found", name))
|
||||||
|
}
|
||||||
|
|
||||||
|
fn string_from_expr(e: &Expression) -> Result<String, String>
|
||||||
|
{
|
||||||
|
match e {
|
||||||
|
Expression::String(s) => Ok(s.to_string()),
|
||||||
|
_ => Err(format!("string expected, got {:?}", &e)),
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn tags_from_expr(e: &Expression) -> Result<Vec<String>, String>
|
||||||
|
{
|
||||||
|
match e {
|
||||||
|
Expression::Array(es) => {
|
||||||
|
Ok(es.into_iter().filter_map(|e| match string_from_expr(e) {
|
||||||
|
Ok(e) => Some(e),
|
||||||
|
Err(_) => { println!("note: ignoring tag {:?}", &e); None },
|
||||||
|
}).collect())
|
||||||
|
},
|
||||||
|
_ => Err(format!("array expected, got {:#?}", &e))
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn strings_from_expr(e: &Expression) -> Result<Vec<String>, String>
|
||||||
|
{
|
||||||
|
match e {
|
||||||
|
Expression::Array(es) =>
|
||||||
|
es.into_iter().map(string_from_expr).collect(),
|
||||||
|
_ => Err(format!("array expected, got {:#?}", &e))
|
||||||
|
}
|
||||||
|
}
|
||||||
Loading…
Reference in a new issue