service/git: migrate to forgejo from gitea

modules/services/default.nix

@@ -12,7 +12,7 @@
     ./finance
     ./freshrss
     ./fritzbox
-    ./gitea
+    ./git
     ./grafana
     ./hedgedoc
     ./home-automation

modules/services/git/default.nix

@@ -6,17 +6,41 @@
   ...
 }:
 let
-  cfg = config.my.services.gitea;
+  cfg = config.my.services.git;
   inherit (config.networking) domain;
 in
 {
-  options.my.services.gitea = with lib; {
-    enable = mkEnableOption "Gitea";
+  options.my.services.git = {
+    enable = lib.mkEnableOption "Git server";
+
+    passwordFile = lib.mkOption {
+      type = lib.types.path;
+      example = "/var/lib/somewhere/password.txt";
+      description = ''
+        Path to a file containing the admin's password.
+      '';
+    };
   };
 
   config = lib.mkIf cfg.enable {
+
+    # configure admin user
+    systemd.services.forgejo.preStart =
+      let
+        adminCmd = "${lib.getExe config.services.forgejo.package} admin user";
+        user = "felix";
+      in
+      ''
+        admin="${adminCmd}"
+        if ! $admin list | grep "${user}"; then
+          ${adminCmd} create --admin --email "server@localhost" --username ${user} --password "$(tr -d '\n' < ${cfg.passwordFile})" || true
+        else
+          ${adminCmd} change-password --username ${user} --password "$(tr -d '\n' < ${cfg.passwordFile})" || true
+        fi
+      '';
+
     services = {
-      gitea = {
+      forgejo = {
         enable = true;
         settings = {
           server = {
@@ -35,10 +59,10 @@ in
       prometheus = {
         scrapeConfigs = [
           {
-            job_name = "gitea";
+            job_name = "forgejo";
             static_configs = [
               {
-                targets = [ "localhost:${toString config.services.gitea.settings.server.HTTP_PORT}" ];
+                targets = [ "localhost:${toString config.services.forgejo.settings.server.HTTP_PORT}" ];
                 labels = {
                   instance = config.networking.hostName;
                 };
@@ -50,39 +74,39 @@ in
       grafana.provision = {
         dashboards.settings.providers = [
           {
-            name = "Gitea";
-            options.path = pkgs.grafana-dashboards.gitea;
+            name = "Forgejo";
+            options.path = pkgs.grafana-dashboards.forgejo;
             disableDeletion = true;
           }
         ];
       };
     };
 
-    # Proxy to Gitea
+    # Proxy to forgejo
     my.services = {
       webserver.virtualHosts = [
         {
           subdomain = "code";
-          port = config.services.gitea.settings.server.HTTP_PORT;
+          port = config.services.forgejo.settings.server.HTTP_PORT;
         }
       ];
 
       backup = {
         paths = [
-          config.services.gitea.lfs.contentDir
-          config.services.gitea.repositoryRoot
+          config.services.forgejo.lfs.contentDir
+          config.services.forgejo.repositoryRoot
         ];
       };
 
       prometheus.rules = {
-        gitea = {
-          condition = ''rate(promhttp_metric_handler_requests_total{job="gitea", code="500"}[5m]) > 3'';
-          description = "{{$labels.instance}}: gitea instances error rate went up: {{$value}} errors in 5 minutes";
+        forgejo = {
+          condition = ''rate(promhttp_metric_handler_requests_total{job="forgejo", code="500"}[5m]) > 3'';
+          description = "{{$labels.instance}}: forgejo instances error rate went up: {{$value}} errors in 5 minutes";
         };
       };
     };
 
-    webapps.apps.gitea = {
+    webapps.apps.git = {
       dashboard = {
         name = "Code";
         category = "app";