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backups: skip preRestore and postRestore if not specified by a service

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This commit is contained in:
Jörg Thalheim 2024-03-20 07:49:27 +01:00
parent aa659bcc17
commit 539df08706
2 changed files with 24 additions and 22 deletions
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12
nixosModules/clanCore/state.nix
View File

@ -17,18 +17,18 @@
Folder where state resides in
'';
};
preRestoreScript = lib.mkOption {
type = lib.types.str;
default = ":";
preRestoreCommand = lib.mkOption {
type = lib.types.nullOr lib.types.str;
default = null;
description = ''
script to run before restoring the state dir from a backup
Utilize this to stop services which currently access these folders
'';
};
postRestoreScript = lib.mkOption {
type = lib.types.str;
default = ":";
postRestoreCommand = lib.mkOption {
type = lib.types.nullOr lib.types.str;
default = null;
description = ''
script to restore the service after the state dir was restored from a backup

34
pkgs/clan-cli/clan_cli/backups/restore.py
View File

@ -14,15 +14,16 @@ def restore_service(machine: Machine, name: str, provider: str, service: str) ->
env["NAME"] = name
env["FOLDERS"] = ":".join(folders)
proc = machine.target_host.run(
[backup_folders[service]["preRestoreScript"]],
stdout=subprocess.PIPE,
extra_env=env,
)
if proc.returncode != 0:
raise ClanError(
f"failed to run preRestoreScript: {backup_folders[service]['preRestoreScript']}, error was: {proc.stdout}"
if pre_restore := backup_folders[service]["preRestoreCommand"]:
proc = machine.target_host.run(
[pre_restore],
stdout=subprocess.PIPE,
extra_env=env,
)
if proc.returncode != 0:
raise ClanError(
f"failed to run preRestoreCommand: {pre_restore}, error was: {proc.stdout}"
)
proc = machine.target_host.run(
[backup_metadata["providers"][provider]["restore"]],
@ -34,15 +35,16 @@ def restore_service(machine: Machine, name: str, provider: str, service: str) ->
f"failed to restore backup: {backup_metadata['providers'][provider]['restore']}"
)
proc = machine.target_host.run(
[backup_folders[service]["postRestoreScript"]],
stdout=subprocess.PIPE,
extra_env=env,
)
if proc.returncode != 0:
raise ClanError(
f"failed to run postRestoreScript: {backup_folders[service]['postRestoreScript']}, error was: {proc.stdout}"
if post_restore := backup_folders[service]["postRestoreCommand"]:
proc = machine.target_host.run(
[post_restore],
stdout=subprocess.PIPE,
extra_env=env,
)
if proc.returncode != 0:
raise ClanError(
f"failed to run postRestoreCommand: {post_restore}, error was: {proc.stdout}"
)
def restore_backup(