flora-6/gitea: Move towards docker containers

hosts/flora-6/gitea.nix

@@ -16,6 +16,67 @@
     owner = "gitea";
   };
 
+  users.users.git = {
+    description = "Gitea SSH Service";
+    home = "/var/lib/gitea/git";
+    useDefaultShell = false;
+    uid = 995;
+    isSystemUser = true;
+  };
+
+  virtualisation = {
+    docker = {
+      enable = true; # sadly podman is not supported rightnow
+    };
+
+    oci-containers = {
+      backend = "docker";
+      containers."gitea" = {
+        image = "gitea:gitea:1.18.3";
+        autoStart = true;
+        user = "995";
+        ports = [
+          "127.0.0.1:3000:3000"
+          "127.0.0.1:2222:22"
+        ];
+        volumes = [
+          "/var/lib/gitea:/data"
+          # Secrets go in the app.ini file, the rest wil be done in nix via environment variables
+          "/var/lib/gitea/custom/conf/app.ini:/${config.age.secrets.gitea-secrets-app-ini.path}"
+          "/etc/timezone:/etc/timezone:ro"
+          "/etc/localtime:/etc/localtime:ro"
+        ];
+        extraOptions = [
+          "--network=gitea"
+        ];
+        environment = {
+          USER_UID = "postgres";
+          USER_GID = "postgres";
+          RUN_MODE = "prod";
+          SSH_DOMAIN = "git.pub.solar";
+          ROOT_URL = "git.pub.solar";
+          DB_TYPE = "postgres";
+          DB_HOST = "gitea-db";
+          DISABLE_REGISTRATION = "true";
+        };
+      };
+
+      containers."gitea-db" = {
+        image = "postgres:14";
+        autoStart = true;
+        volumes = [
+          "/var/lib/gitea-db:/var/lib/postgresql/data"
+        ];
+        extraOptions = [
+          "--network=gitea"
+        ];
+        environmentFiles = [
+          config.age.secrets.gitea-db-secrets.path
+        ];
+      };
+    };
+  };
+
   # gitea
   services.gitea = {
     enable = true;