forked from clan/clan-core
borgbackup: move preBackupScript to a different systemd context
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parent
5c11a30b46
commit
66bdc61e3d
@ -6,6 +6,27 @@
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}:
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let
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cfg = config.clan.borgbackup;
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preBackupScript = ''
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declare -A preCommandErrors
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${lib.concatMapStringsSep "\n" (
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state:
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lib.optionalString (state.preBackupCommand != null) ''
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echo "Running pre-backup command for ${state.name}"
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if ! ( ${state.preBackupCommand} ) then
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preCommandErrors["${state.name}"]=1
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fi
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''
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) (lib.attrValues config.clanCore.state)}
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if [[ ''${#preCommandErrors[@]} -gt 0 ]]; then
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echo "PreBackupCommand failed for the following services:"
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for state in "''${!preCommandErrors[@]}"; do
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echo " $state"
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done
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exit 1
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fi
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'';
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in
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{
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options.clan.borgbackup.destinations = lib.mkOption {
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@ -50,6 +71,16 @@ in
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];
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config = lib.mkIf (cfg.destinations != { }) {
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systemd.services = lib.mapAttrs' (
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_: dest:
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lib.nameValuePair "borgbackup-job-${dest.name}" {
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# since borgbackup mounts the system read-only, we need to run in a ExecStartPre script, so we can generate additional files.
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serviceConfig.ExecStartPre = [
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(''+${pkgs.writeShellScript "borgbackup-job-${dest.name}-pre-backup-commands" preBackupScript}'')
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];
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}
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) cfg.destinations;
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services.borgbackup.jobs = lib.mapAttrs (_: dest: {
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paths = lib.unique (
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lib.flatten (map (state: state.folders) (lib.attrValues config.clanCore.state))
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@ -60,29 +91,6 @@ in
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compression = "auto,zstd";
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startAt = "*-*-* 01:00:00";
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persistentTimer = true;
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preHook = ''
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set -x
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declare -A preCommandErrors
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${lib.concatMapStringsSep "\n" (
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state:
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lib.optionalString (state.preBackupCommand != null) ''
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echo "Running pre-backup command for ${state.name}"
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if ! ( ${state.preBackupCommand} ) then
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preCommandErrors["${state.name}"]=1
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fi
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''
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) (lib.attrValues config.clanCore.state)}
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'';
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postPrune = ''
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# report any preBackupCommand errors
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if [[ ''${#preCommandErrors[@]} -gt 0 ]]; then
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echo "PreBackupCommand failed for the following services:"
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for state in "''${!preCommandErrors[@]}"; do
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echo " $state"
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done
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exit 1
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fi
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'';
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encryption = {
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mode = "repokey";
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