jeff/ nixos-restic
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This commit is contained in:
Jeffrey C. Ollie 2023-04-22 18:38:58 -05:00
parent 1166d2038e
commit 8e6762646a
Signed by: jeff
GPG Key ID: 6F86035A6D97044E
4 changed files with 275 additions and 13 deletions
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30
.drone.yml Normal file
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@ -0,0 +1,30 @@
---
kind: secret
name: local_username
get:
path: local
name: username
---
kind: secret
name: local_password
get:
path: local
name: password
---
kind: pipeline
type: kubernetes
name: publish
steps:
- name: build
image: local.io/jcollie/nixos-runner:latest
pull: always
commands:
- nix build .#docker
- nix run .#push-container -- result
settings:
registry: r.ocj.io
repository: backup/restic
username:
from_secret: local_username
password:
from_secret: local_password

176
entrypoint.nu Normal file
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@ -0,0 +1,176 @@
def healthcheck_start [
url: record
] {
if not ($env | get -i HEALTHCHECK_URL | is-empty ) {
http get --full --max-time 10 ($url | update path $"($in.path)/start" | url join) | ignore
}
}
def healthcheck_log [
url: record
log: string
] {
if not ($url | is-empty ) {
http post --max-time 10 ($url | update path $"($in.path)/log" | url join) $log | ignore
}
}
def healthcheck_fail [
url: record
log: string
] {
if not ($url | is-empty ) {
http post --full --max-time 10 ($url | update path $"($in.path)/fail" | url join) $log | ignore
}
}
def healthcheck_stop [
url: record
] {
if not ($url | is-empty ) {
http get --full --max-time 10 ($url | url join) | ignore
}
}
def main [
--rclone: string # path to rclone binary
--restic: string # path to restic binary
--cache-dir: string # path to cache dir
] {
let rid = (random uuid)
let healthcheck_url = if not ($env | get -i HEALTHCHECK_URL | is-empty) {
$env.HEALTHCHECK_URL | url parse | update params ($in | get params | insert rid $rid)
} else {
{}
}
healthcheck_start $healthcheck_url
alias rclone = ^$rclone
alias restic = ^$restic --cache-dir $cache_dir --option "b2.connections=128"
if ($env | get -i BACKUP_PATHS | is-empty) {
print "BACKUP_PATHS not set."
healthcheck_fail $healthcheck_url "BACKUP_PATHS not set."
exit 1
}
let paths = ($env.BACKUP_PATHS | split row " ")
let not_exists = ($paths | path exists | enumerate | filter { |r| not $r.item })
if ($not_exists | length ) > 0 {
let error = ("error: some backup paths do not exist:\n\n" + ($not_exists | each { |r| ($paths | get $r.index) } | str join "\n") + "\n")
print ($error | str trim --right)
healthcheck_fail $healthcheck_url $error
exit 1
}
$paths | each { |r| print $"BACKUP_PATH: ($r)" }
if ($env | get -i B2_ACCOUNT_ID | is-empty) {
print "B2_ACCOUNT_ID not set."
healthcheck_fail $healthcheck_url "B2_ACCOUNT_ID not set."
exit 1
}
if ($env | get -i B2_ACCOUNT_KEY | is-empty) {
print "B2_ACCOUNT_KEY not set."
healthcheck_fail $healthcheck_url "B2_ACCOUNT_KEY not set."
exit 1
}
if ($env | get -i B2_BUCKET | is-empty) {
print "B2_BUCKET not set."
healthcheck_fail $healthcheck_url "B2_BUCKET not set."
exit 1
}
print $"B2_BUCKET: ($env.B2_BUCKET)"
if ($env | get -i HOSTNAME | is-empty) {
print "HOSTNAME not set."
healthcheck_fail $healthcheck_url "HOSTNAME not set."
exit 1
}
print $"HOSTNAME: ($env.HOSTNAME)"
if ($env | get -i RESTIC_PASSWORD_FILE | is-empty) {
print "RESTIC_PASSWORD_FILE not set."
healthcheck_fail $healthcheck_url "RESTIC_PASSWORD_FILE not set."
exit 1
}
# $env.RESTIC_PASSWORD | save --force --raw "/tmp/password"
let-env RESTIC_PASSWORD_FILE = "/tmp/password"
let-env RESTIC_REPOSITORY = $"b2:($env.B2_BUCKET):($env.HOSTNAME)"
let-env RCLONE_CONFIG = "/dev/null"
let-env RCLONE_CONFIG_B2_TYPE = "b2"
let-env RCLONE_CONFIG_B2_ACCOUNT = $env.B2_ACCOUNT_ID
let-env RCLONE_CONFIG_B2_KEY = $env.B2_ACCOUNT_KEY
if (rclone lsjson $"b2:($env.B2_BUCKET)/($env.HOSTNAME)/config" | from json | length | $in == 0) {
let result = (do {restic init} | complete)
if $result.exit_code != 0 {
print "restic init failed"
print ($result.stderr | str trim --right)
healthcheck_fail $healthcheck_url $result.stderr
exit 1
} else {
healthcheck_log $healthcheck_url "restic repository initialized"
}
}
let result = (do {restic backup --host $env.HOSTNAME $paths} | complete)
if $result.exit_code == 1 {
print "restic backup failed"
print ($result.stderr | str trim --right)
healthcheck_fail $healthcheck_url $result.stderr
exit 1
} else if $result.exit_code == 3 {
print "restic backup incomplete"
print ($result.stderr | str trim --right)
healthcheck_log $healthcheck_url $result.stderr
} else {
print ($result.stdout | str trim --right)
healthcheck_log $healthcheck_url $result.stdout
}
let result = (do {restic forget --host $env.HOSTNAME --prune --keep-within 14d} | complete)
if $result.exit_code != 0 {
print "restic forget failed"
print ($result.stderr | str trim --right)
healthcheck_fail $healthcheck_url $result.stderr
exit 1
}
print ($result.stdout | str trim --right)
healthcheck_log $healthcheck_url $result.stdout
let result = (do {restic check} | complete)
if $result.exit_code != 0 {
print "restic check failed"
print ($result.stderr | str trim --right)
healthcheck_fail $healthcheck_url $result.stderr
exit 1
}
print ($result.stdout | str trim --right)
healthcheck_log $healthcheck_url $result.stdout
let result = (do {restic cache --cleanup} | complete)
if $result.exit_code != 0 {
print "restic cache failed"
print ($result.stderr | str trim)
healthcheck_fail $healthcheck_url $result.stderr
exit 1
}
print ($result.stdout | str trim --right)
healthcheck_log $healthcheck_url $result.stdout
healthcheck_stop $healthcheck_url
}

30
flake.lock
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@ -1,12 +1,15 @@
{
"nodes": {
"flake-utils": {
"inputs": {
"systems": "systems"
},
"locked": {
"lastModified": 1676283394,
"narHash": "sha256-XX2f9c3iySLCw54rJ/CZs+ZK6IQy7GXNY4nSOyu2QG4=",
"lastModified": 1681202837,
"narHash": "sha256-H+Rh19JDwRtpVPAWp64F+rlEtxUWBAQW28eAi3SRSzg=",
"owner": "numtide",
"repo": "flake-utils",
"rev": "3db36a8b464d0c4532ba1c7dda728f4576d6d073",
"rev": "cfacdce06f30d2b68473a46042957675eebb3401",
"type": "github"
},
"original": {
@ -17,11 +20,11 @@
},
"nixpkgs": {
"locked": {
"lastModified": 1678470307,
"narHash": "sha256-OEeMUr3ueLIXyW/OaFUX5jUdimyQwMg/7e+/Q0gC/QE=",
"lastModified": 1681920287,
"narHash": "sha256-+/d6XQQfhhXVfqfLROJoqj3TuG38CAeoT6jO1g9r1k0=",
"owner": "NixOS",
"repo": "nixpkgs",
"rev": "0c4800d579af4ed98ecc47d464a5e7b0870c4b1f",
"rev": "645bc49f34fa8eff95479f0345ff57e55b53437e",
"type": "github"
},
"original": {
@ -35,6 +38,21 @@
"flake-utils": "flake-utils",
"nixpkgs": "nixpkgs"
}
},
"systems": {
"locked": {
"lastModified": 1681028828,
"narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
"owner": "nix-systems",
"repo": "default",
"rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
"type": "github"
},
"original": {
"owner": "nix-systems",
"repo": "default",
"type": "github"
}
}
},
"root": "root",

52
flake.nix
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@ -23,17 +23,17 @@
let
pname = "restic";
version = "0.15.1";
sha256 = "sha256-KdPslVJHH+xdUuFfmLZumP2lHzkDrrAvpDaj38SuP8o=";
vendorSha256 = "sha256-oetaCiXWEBUEf382l4sjO0SCPxkoh+bMTgIf/qJTQms=";
hash = "sha256-KdPslVJHH+xdUuFfmLZumP2lHzkDrrAvpDaj38SuP8o=";
vendorHash = "sha256-oetaCiXWEBUEf382l4sjO0SCPxkoh+bMTgIf/qJTQms=";
in
pkgs.buildGoModule {
inherit pname version;
inherit pname version vendorHash;
src = pkgs.fetchFromGitHub {
owner = "restic";
repo = "restic";
rev = "v${version}";
sha256 = sha256;
hash = hash;
};
patches = [
@ -41,11 +41,12 @@
./0001-Skip-testing-restore-with-permission-failure.patch
];
vendorSha256 = vendorSha256;
subPackages = [ "cmd/restic" ];
nativeBuildInputs = [ pkgs.installShellFiles pkgs.makeWrapper ];
nativeBuildInputs = [
pkgs.installShellFiles
pkgs.makeWrapper
];
passthru.tests.restic = pkgs.nixosTests.restic;
@ -72,6 +73,43 @@
maintainers = [ maintainers.mbrgm ];
};
};
entrypoint = pkgs.writeTextFile {
name = "entrypoint";
destination = "/bin/entrypoint";
text = pkgs.lib.concatStringsSep "\n" [
"#!${pkgs.nushell}/bin/nu"
(builtins.readFile ./entrypoint.nu)
];
executable = true;
};
docker = pkgs.dockerTools.buildLayeredImage {
name = "restic";
tag = "latest";
maxLayers = 2;
contents = [
];
config = {
Cmd = [
"${self.packages.${system}.entrypoint}/bin/entrypoint"
"--rclone"
"${pkgs.rclone}/bin/rclone"
"--restic"
"${self.packages.${system}.restic}/bin/restic"
"--cache-dir"
"/cache"
];
Env = [
"TZ=UTC"
"SSL_CERT_FILE=${pkgs.cacert}/etc/ssl/certs/ca-bundle.crt"
];
ExposedPorts = { };
Volumes = {
"/cache" = { };
};
};
};
};
}
) // {