Add gitea admin

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

packages/docker/gitea/default.nix

@@ -1,4 +1,12 @@
 { pkgs, ... }:
+let
+  entrypoint = pkgs.writeTextFile {
+    name = "entrypoint";
+    executable = true;
+    destination = "/bin/entrypoint";
+    text = builtins.readFile ./entrypoint.sh;
+  };
+in
 pkgs.dockerTools.buildImage {
   name = "gitea";
   fromImage = import ../base { inherit pkgs; };
@@ -6,6 +14,7 @@ pkgs.dockerTools.buildImage {
   copyToRoot = pkgs.buildEnv {
     name = "root";
     paths = with pkgs; [
+      entrypoint
       gitea
       git
     ];
@@ -13,12 +22,7 @@ pkgs.dockerTools.buildImage {
   };
 
   config = {
-    Entrypoint = [ "gitea" ];
-    Cmd = [
-      "web"
-      "-c"
-      "/etc/gitea/app.ini"
-    ];
+    Entrypoint = [ "entrypoint" ];
     ExposedPorts = {
       "3000/tcp" = { };
     };

packages/docker/gitea/entrypoint.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env sh
+
+set -o errexit
+set -o nounset
+
+gitea migrate -c /etc/gitea/app.ini
+
+if [ -f /etc/gitea/pre-start.sh ]; then
+  # shellcheck disable=SC1091
+  . /etc/gitea/pre-start.sh
+fi
+
+exec gitea web -c /etc/gitea/app.ini "$@"