prism: add backup

Signed-off-by: Jörg Thalheim <joerg@thalheim.io>

lass/2configs/codimd.nix

@@ -2,7 +2,8 @@
 with import <stockholm/lib>;
 let
   domain = "pad.lassul.us";
-in {
+in
+{
 
   # redirect legacy domain to new one
   services.nginx.virtualHosts."codi.lassul.us" = {
@@ -25,13 +26,77 @@ in {
 
   security.dhparams = {
     enable = true;
-    params.hedgedoc = {};
+    params.hedgedoc = { };
   };
 
   systemd.services.hedgedoc.environment = {
     CMD_COOKIE_POLICY = "none";
     CMD_CSP_ALLOW_FRAMING = "true";
   };
+
+  systemd.services.hedgedoc-backup = {
+    startAt = "daily";
+    serviceConfig = {
+      ExecStart = ''${pkgs.sqlite}/bin/sqlite3 /var/lib/hedgedoc/db.hedgedoc.sqlite ".backup /var/backup/hedgedoc/backup.sq3"'';
+      Type = "oneshot";
+    };
+  };
+
+  services.postgresqlBackup.enable = true;
+
+  systemd.services.borgbackup-job-hetzner.serviceConfig.ReadWritePaths = [ "/var/log/telegraf" ];
+
+  services.borgbackup.jobs.hetzner = {
+    paths = [
+      "/home"
+      "/etc"
+      "/var"
+      "/root"
+    ];
+    exclude = [
+      "*.pyc"
+      "/home/*/.direnv"
+      "/home/*/.cache"
+      "/home/*/.cargo"
+      "/home/*/.npm"
+      "/home/*/.m2"
+      "/home/*/.gradle"
+      "/home/*/.opam"
+      "/home/*/.clangd"
+      "/var/lib/containerd"
+      # already included in database backup
+      "/var/lib/postgresql"
+      # not so important
+      "/var/lib/docker/"
+      "/var/log/journal"
+      "/var/cache"
+      "/var/tmp"
+      "/var/log"
+    ];
+    repo = "u348918@u348918.your-storagebox.de:/./hetzner";
+    encryption.mode = "none";
+    compression = "auto,zstd";
+    startAt = "daily";
+    # TODO: change backup key
+    environment.BORG_RSH = "ssh -oPort=23 -i ${config.sops.secrets.hetzner-borgbackup-ssh.path}";
+    preHook = ''
+      set -x
+    '';
+
+    postHook = ''
+      cat > /var/log/telegraf/borgbackup-job-hetzner.service <<EOF
+      task,frequency=daily last_run=$(date +%s)i,state="$([[ $exitStatus == 0 ]] && echo ok || echo fail)"
+      EOF
+    '';
+
+    prune.keep = {
+      within = "1d"; # Keep all archives from the last day
+      daily = 7;
+      weekly = 4;
+      monthly = 0;
+    };
+  };
+
   services.hedgedoc = {
     enable = true;
     configuration.allowOrigin = [ domain ];
@@ -51,8 +116,6 @@ in {
       sslCertPath = "/var/lib/acme/${domain}/cert.pem";
       sslKeyPath = "/var/lib/acme/${domain}/key.pem";
       dhParamPath = config.security.dhparams.params.hedgedoc.path;
-
     };
   };
 }
-