System/Servenix: Add initial servenix system configuration

system/services/gitea.nix

@@ -0,0 +1,79 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}: {
+  # Extra git user for Gitea
+  users.users.git = {
+    uid = 500;
+    group = "git";
+    isNormalUser = false;
+    isSystemUser = true;
+    description = "Gitea User";
+    extraGroups = ["docker" "podman"];
+    shell = pkgs.fish;
+  };
+
+  virtualisation.oci-containers.containers.gitea-db = {
+    image = "postgres:14";
+    autoStart = true;
+
+    dependsOn = [];
+
+    ports = [];
+
+    volumes = [
+      "gitea-db_data:/var/lib/postgresql/data"
+    ];
+
+    environment = {
+      POSTGRES_USER = "gitea";
+      POSTGRES_PASSWORD = "gitea";
+      POSTGRES_DB = "gitea";
+    };
+
+    extraOptions = [
+      "--net=behind-nginx"
+    ];
+  };
+
+  virtualisation.oci-containers.containers.gitea = {
+    image = "gitea/gitea:latest";
+    autoStart = true;
+
+    dependsOn = [
+      "gitea-db"
+    ];
+
+    ports = [
+      "3000:3000"
+
+      # NOTE: Set .git/config url to ssh://christoph@gitea.local.chriphost.de:222/christoph/<repo>.git
+      "222:222" # Gitea SSH
+    ];
+
+    volumes = [
+      "/etc/timezone:/etc/timezone:ro"
+      "/etc/localtime:/etc/localtime:ro"
+
+      "gitea_data:/data"
+    ];
+
+    environment = {
+      USER = "git";
+      USER_UID = "500";
+      # USER_GID = "100";
+
+      GITEA__database__DB_TYPE = "postgres";
+      GITEA__database__HOST = "gitea-db:5432";
+      GITEA__database__NAME = "gitea";
+      GITEA__database__USER = "gitea";
+      GITEA__database__PASSWD = "gitea";
+    };
+
+    extraOptions = [
+      "--net=behind-nginx"
+    ];
+  };
+}