62 lines
1.8 KiB
Nix
62 lines
1.8 KiB
Nix
{ config, pkgs, ... }:
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#necessary prep work:
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# GRANT CONNECT ON DATABASE misskey TO "misskey-backup";
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# GRANT SELECT ON ALL TABLES IN SCHEMA public TO "misskey-backup";
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# GRANT SELECT ON ALL SEQUENCES IN SCHEMA public TO "misskey-backup";
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#
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# TODO: automate this cause it needs to be done whenever db schema changes
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let
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user = "misskey-backup";
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group = user;
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backupConfigFile = "/etc/misskey-backup/conf";
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s3Cfg = "/etc/misskey-backup/s3cfg";
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backupScript = pkgs.writeShellApplication {
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name = "misskey-backup";
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runtimeInputs = with pkgs; [
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gzip
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config.services.postgresql.package
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s3cmd
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coreutils
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mktemp
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];
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excludeShellChecks = [ "SC1091" ];
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text = ''
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bucket="$(cat "${backupConfigFile}" | grep 'bucket=' | sed 's/bucket \?= \?')"
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prefix="$(cat "${backupConfigFile}" | grep 'prefix=' | sed 's/prefix \?= \?')"
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s3Dir="s3://$bucket/\$\{prefix}misskey-$(date --iso-8601)"
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echo "Uploading backups to '$s3Dir'"
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echo "Uploading config"
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tar -cz -C /srv/misskey/.config . | s3cmd put --config "${s3Cfg}" - "$s3Dir/config.tar.gz"
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echo "Dumping postgres database..."
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pg_dump misskey | gzip | s3cmd put --config "${s3Cfg}" - "$s3Dir/pg_dump.sql.gz"
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echo "Uploading redis database..."
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tar -cz -C /var/lib/redis-misskey . | s3cmd put --config "${s3Cfg}" - "$s3Dir/redis.tar.gz"
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echo "Backup complete to '$s3Dir'"
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'';
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};
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in {
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users.users."${user}" = {
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isSystemUser = true;
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inherit group;
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};
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users.groups."${group}" = { };
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services.postgresql.ensureUsers = [{ name = user; }];
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services.cron = {
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enable = true;
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systemCronJobs = [
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# run every monday at ass in the morning, EST"
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"0 8 0 0 1 ${user} ${backupScript}"
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];
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};
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}
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