112 lines
3.2 KiB
Nix
112 lines
3.2 KiB
Nix
{pkgs, config, ...}:
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let
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inherit (pkgs.lib) mkOption mkIf singleton concatStrings;
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inherit (pkgs) sitecopy;
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stateDir = "/var/spool/sitecopy";
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sitecopyCron = backup : ''
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${if backup ? period then backup.period else config.services.sitecopy.period} root ${sitecopy}/bin/sitecopy --storepath=${stateDir} --rcfile=${stateDir}/${backup.name}.conf --update ${backup.name}
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'';
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in
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{
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###### interface
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options = {
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services.sitecopy = {
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enable = mkOption {
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default = false;
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description = ''
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Whether to enable sitecopy backups of specified directories.
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'';
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};
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period = mkOption {
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default = "15 04 * * *";
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description = ''
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This option defines (in the format used by cron) when the
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sitecopy backup are being run.
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The default is to update at 04:15 (at night) every day.
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'';
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};
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backups = mkOption {
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example = [
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{ name = "test";
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local = "/tmp/backup";
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remote = "/staff-groups/ewi/st/strategoxt/backup/test";
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server = "webdata.tudelft.nl";
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protocol = "webdav";
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https = true ;
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}
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];
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default = [];
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description = ''
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List of attributesets describing the backups.
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Username/password are extracted from <filename>${stateDir}/sitecopy.secrets</filename> at activation
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time. The secrets file lines should have the following structure:
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<screen>
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server username password
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</screen>
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'';
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};
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};
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};
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###### implementation
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config = mkIf config.services.sitecopy.enable {
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environment.systemPackages = [ sitecopy ];
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services.cron = {
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systemCronJobs = pkgs.lib.optional
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config.services.sitecopy.enable
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(concatStrings (map sitecopyCron config.services.sitecopy.backups));
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};
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system.activationScripts.postgresqlBackup =
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pkgs.stringsWithDeps.noDepEntry ''
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mkdir -m 0700 -p ${stateDir}
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chown root ${stateDir}
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touch ${stateDir}/sitecopy.secrets
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chown root ${stateDir}/sitecopy.secrets
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${pkgs.lib.concatStrings (map ( b: ''
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unset secrets
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unset secret
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secrets=`grep '^${b.server}' ${stateDir}/sitecopy.secrets | head -1`
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secret=($secrets)
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cat > ${stateDir}/${b.name}.conf << EOF
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site ${b.name}
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server ${b.server}
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protocol ${b.protocol}
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username ''${secret[1]}
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password ''${secret[2]}
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local ${b.local}
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remote ${b.remote}
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${if b.https then "http secure" else ""}
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EOF
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chmod 0600 ${stateDir}/${b.name}.conf
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if ! test -e ${stateDir}/${b.name} ; then
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echo " * Initializing sitecopy '${b.name}'"
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${sitecopy}/bin/sitecopy --storepath=${stateDir} --rcfile=${stateDir}/${b.name}.conf --initialize ${b.name}
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else
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echo " * Sitecopy '${b.name}' already initialized"
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fi
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'' ) config.services.sitecopy.backups
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)}
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'';
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};
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}
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