mail: add backups

Restic backups to garage S3 bucket

hosts/metronom/backups.nix

@@ -1,12 +1,13 @@
 { flake, ... }:
 {
-  age.secrets."restic-repo-droppie" = {
-    file = "${flake.self}/secrets/restic-repo-droppie.age";
+  age.secrets.restic-repo-garage-mail = {
+    file = "${flake.self}/secrets/restic-repo-garage-mail.age";
     mode = "400";
     owner = "root";
   };
-  age.secrets."restic-repo-storagebox" = {
-    file = "${flake.self}/secrets/restic-repo-storagebox.age";
+
+  age.secrets.restic-repo-garage-mail-env = {
+    file = "${flake.self}/secrets/restic-repo-garage-mail-env.age";
     mode = "400";
     owner = "root";
   };

hosts/metronom/default.nix

@@ -7,6 +7,6 @@
 
     ./networking.nix
     ./wireguard.nix
-    #./backups.nix
+    ./backups.nix
   ];
 }

modules/mail/default.nix

@@ -67,4 +67,23 @@
   };
   security.acme.acceptTerms = true;
   security.acme.defaults.email = "security@pub.solar";
+
+  services.restic.backups.mail-garage = {
+    paths = [
+      "/var/lib/vmail"
+      "/var/lib/dkim"
+    ];
+    timerConfig = {
+      OnCalendar = "*-*-* 02:00:00 Etc/UTC";
+    };
+    initialize = true;
+    passwordFile = config.age.secrets."restic-repo-garage-mail".path;
+    environmentFile = config.age.secrets."restic-repo-garage-mail-env".path;
+    repository = "s3:https://buckets.pub.solar/mail-backups";
+    pruneOpts = [
+      "--keep-daily 7"
+      "--keep-weekly 4"
+      "--keep-monthly 3"
+    ];
+  };
 }

secrets/restic-repo-garage-mail.age

@@ -0,0 +1,43 @@
+age-encryption.org/v1
+-> ssh-ed25519 UE5Ceg ys38fGOhLJNLg9zx9T3v2VgF2IbOr/Y/rj2+dWkcAlU
+QwkMX8WKgcJeGUomDSLjijen2K5UcRnYYwtebrITDqU
+-> ssh-ed25519 uYcDNw wF0oWExIUjlP32CQzOvp6MyEvFw33Sm8pHhYn3Sb0zE
+RHslJJumyXoCLHLw4sGlSLK++UHmgq97KPkqCu77G3o
+-> ssh-rsa f5THog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+-> ssh-rsa kFDS0A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+-> piv-p256 vRzPNw AqccwzdKUA4RP2LzIfcTlAN9LsoEB/b7tGYyM8bk39Pn
+f0srD9t9HaGY8OIAVImqJSrvHZRhxfMXkYwot4LJGeM
+-> piv-p256 zqq/iw Aj8544WraFJMX2S6qyzi6CTal6sRnunmzbMO4KUQhJOO
+BFiQSdLgrmgPnynqmSLNBqiWkyBme3KavSbi86HHSck
+-> ssh-ed25519 YFSOsg Zece1bOI+mVc6079POREAnnzSG7ZytiTRDm+NzbbhVE
+alK4ODfwrgRSDGWzcZmIuyZ88axaiMzSNfeGspsgk70
+-> ssh-ed25519 iHV63A LwfUkisQGB3txmxYYLlZSG6ddxVNVC9+UokxPiXEjRc
+yRmtdHT9uM0YkS/s80jetMr1baDjGsaRubVKbJVPpCk
+-> ssh-ed25519 BVsyTA +8LVssLl+DiF2f3H0KhAhvzEvTjciIAcRM9ZYwrGQh0
+CcQxWwMBdyXXzDv10vUmXBifYLXsHKOFd2/L95RGT5U
+-> ssh-ed25519 +3V2lQ RWquIefIO5crVvrUxdatV7OvTv1Jabyq4IF209Ezkw0
+0SM43tcO7m7FQlNJe9QnhC9J9PwHoVxucRtZGpcACUE
+--- xx8BodL5hv2CyeZ8m0tGXNzmH2DGaCveUNobqbAQK8U
+)ŠÐÑ\³“9°c½ùt4Ê¿Á~ÁÆëºùeJ¥}<Ó¼Š§Å[‘¸Ø+*x’£>;m/ «&I»–÷Ò:Ï‘óÛ3

secrets/secrets.nix

@@ -54,6 +54,8 @@ in
 
   "restic-repo-droppie.age".publicKeys = nachtigallKeys ++ adminKeys;
   "restic-repo-storagebox.age".publicKeys = nachtigallKeys ++ adminKeys;
+  "restic-repo-garage-mail.age".publicKeys = metronomKeys ++ adminKeys;
+  "restic-repo-garage-mail-env.age".publicKeys = metronomKeys ++ adminKeys;
 
   "drone-db-secrets.age".publicKeys = flora6Keys ++ adminKeys;
   "drone-secrets.age".publicKeys = flora6Keys ++ adminKeys;