improve deployment process

entrypoint.sh

@@ -3,8 +3,36 @@
 set -euo pipefail
 
 USER_ID="${USERID:-}"
+GROUP_ID="${GROUPID:-}"
+
+if [[ -n "${GROUP_ID}" ]]; then
+  CURRENT_GID="$(getent group kirbygroup | cut -d: -f3 || true)"
+  if [[ "${GROUP_ID}" != "${CURRENT_GID}" ]]; then
+    groupmod --gid "${GROUP_ID}" kirbygroup
+  fi
+fi
+
 if [[ -n "${USER_ID}" && "${USER_ID}" != "$(id -u www-data)" ]]; then
   usermod --uid "${USER_ID}" www-data
 fi
 
+if [[ -n "${GROUP_ID}" ]]; then
+  usermod --gid "${GROUP_ID}" www-data
+fi
+
+WRITABLE_DIRS=(
+  "/var/www/html/content"
+  "/var/www/html/media"
+  "/var/www/html/site/accounts"
+  "/var/www/html/site/cache"
+  "/var/www/html/site/logs"
+  "/var/www/html/storage"
+)
+
+for dir in "${WRITABLE_DIRS[@]}"; do
+  mkdir -p "${dir}"
+  chown -R www-data:kirbygroup "${dir}"
+  chmod -R g+rwX "${dir}"
+done
+
 exec "$@"