restic: Rename option resticBackups to restic.backups

modules/system/services/restic/healthchecks.nix

@@ -0,0 +1,60 @@
+{
+  config,
+  pkgs,
+  lib,
+  ...
+}:
+let
+  backupsWithHealthchecks =
+    config.custom.services.restic.backups
+    |> lib.filterAttrs (_: value: value.enable)
+    |> lib.filterAttrs (_: value: value.doHealthchecks);
+in
+{
+  options.custom.services.restic.backups = lib.mkOption {
+    type = lib.types.attrsOf (
+      lib.types.submodule {
+        options.doHealthchecks = lib.mkEnableOption "" // {
+          default = true;
+        };
+      }
+    );
+  };
+
+  config = lib.mkIf (backupsWithHealthchecks != { }) {
+    sops.secrets."healthchecks/ping-key" = { };
+
+    systemd.services = lib.mkMerge [
+      {
+        "healthcheck-ping@" = {
+          description = "Pings healthcheck (%i)";
+          serviceConfig.Type = "oneshot";
+          scriptArgs = "%i";
+          script = ''
+            ping_key="$(cat ${config.sops.secrets."healthchecks/ping-key".path})"
+            slug="$(echo "$1" | tr _ /)"
+
+            ${lib.getExe pkgs.curl} \
+              --fail \
+              --silent \
+              --show-error \
+              --max-time 10 \
+              --retry 5 "https://hc-ping.com/$ping_key/$slug"
+          '';
+        };
+      }
+
+      (
+        backupsWithHealthchecks
+        |> lib.mapAttrs' (
+          name: _:
+          lib.nameValuePair "restic-backups-${name}" {
+            wants = [ "healthcheck-ping@${name}-backup_start.service" ];
+            onSuccess = [ "healthcheck-ping@${name}-backup.service" ];
+            onFailure = [ "healthcheck-ping@${name}-backup_fail.service" ];
+          }
+        )
+      )
+    ];
+  };
+}