Add registry cleanup: keep latest 2 Docker images per repo

ansible/roles/forgejo/tasks/main.yml

@@ -166,3 +166,18 @@
     chdir: "{{ forgejo_data_dir }}"
   register: runner_started
   changed_when: "'Starting' in runner_started.stdout or 'Creating' in runner_started.stdout"
+
+- name: Deploy registry cleanup script
+  ansible.builtin.template:
+    src: cleanup-registry.sh.j2
+    dest: "{{ forgejo_data_dir }}/cleanup-registry.sh"
+    owner: root
+    group: root
+    mode: '0755'
+
+- name: Schedule registry cleanup cron job
+  ansible.builtin.cron:
+    name: forgejo-registry-cleanup
+    job: "{{ forgejo_data_dir }}/cleanup-registry.sh >/dev/null 2>&1"
+    hour: "*/6"
+    minute: "0"

ansible/roles/forgejo/templates/cleanup-registry.sh.j2

@@ -0,0 +1,65 @@
+#!/bin/bash
+# Forgejo container registry cleanup: keep only the latest 2 image tags per repo
+set -euo pipefail
+
+TOKEN="{{ forgejo_admin_password }}"
+BASE="http://127.0.0.1:3000"
+USER="{{ forgejo_admin_user }}"
+
+# Get a real API token
+API_TOKEN=$(curl -s -X POST "$BASE/api/v1/users/$USER/tokens" \
+  -u "$TOKEN" \
+  -H "Content-Type: application/json" \
+  -d '{"name":"cleanup-'"$(date +%s)"'","scopes":["all"]}' \
+  | python3 -c "import sys,json; print(json.load(sys.stdin).get('sha1',''))" 2>/dev/null)
+
+if [ -z "$API_TOKEN" ]; then
+  echo "Failed to get API token"
+  exit 1
+fi
+
+# List all repos
+repos=$(curl -s -H "Authorization: token $API_TOKEN" "$BASE/api/v1/user/repos?limit=100" \
+  | python3 -c "import sys,json; [print(r['name']) for r in json.load(sys.stdin)]" 2>/dev/null)
+
+for repo in $repos; do
+  # List docker packages in the repo
+  pkgs=$(curl -s -H "Authorization: token $API_TOKEN" \
+    "$BASE/api/v1/packages/$USER/$repo?type=docker" 2>/dev/null \
+    | python3 -c "import sys,json;d=json.load(sys.stdin);[print(p['id'],p['name']) for p in d]" 2>/dev/null)
+  
+  while IFS= read -r line; do
+    pkg_id=$(echo "$line" | awk '{print $1}')
+    pkg_name=$(echo "$line" | awk '{$1=""; print $0}' | sed 's/^ //')
+    [ -z "$pkg_id" ] && continue
+
+    # Get all versions of this package
+    versions=$(curl -s -H "Authorization: token $API_TOKEN" \
+      "$BASE/api/v1/packages/$USER/$repo/$pkg_id/versions?page=-1" 2>/dev/null \
+      | python3 -c "
+import sys,json
+d=json.load(sys.stdin)
+if isinstance(d,list):
+    for v in sorted(d, key=lambda x: x.get('created_at',0), reverse=True):
+        print(v['id'], v['version'])
+" 2>/dev/null)
+
+    count=$(echo "$versions" | wc -l)
+    if [ "$count" -le 2 ]; then
+      continue
+    fi
+
+    # Keep the first 2 (latest), delete the rest
+    echo "$versions" | tail -n +3 | while IFS= read -r vline; do
+      ver_id=$(echo "$vline" | awk '{print $1}')
+      echo "Deleting $pkg_name version $ver_id (keeping latest 2 of $count)"
+      curl -s -X DELETE -H "Authorization: token $API_TOKEN" \
+        "$BASE/api/v1/packages/$USER/$repo/$pkg_id/versions/$ver_id" -o /dev/null -w '%{http_code}'
+      echo ""
+    done
+  done <<< "$pkgs"
+done
+
+# Clean up the temporary token
+curl -s -X DELETE -H "Authorization: token $API_TOKEN" \
+  "$BASE/api/v1/users/$USER/tokens/cleanup-$(date +%s)" -o /dev/null 2>/dev/null || true

ansible/roles/forgejo/templates/docker-compose.yml.j2

@@ -26,6 +26,9 @@ services:
       - FORGEJO__service__DISABLE_REGISTRATION=true
       - FORGEJO__repository__ENABLE_PUSH_CREATE_USER=true
       - FORGEJO__repository__DEFAULT_PUSH_CREATE_PRIVATE=true
+      - FORGEJO__cron__cleanup_packages__ENABLED=true
+      - FORGEJO__cron__cleanup_packages__INTERVAL=6h
+      - FORGEJO__cron__cleanup_packages__CLEANUP_RULES=[{"type":"docker","keep_latest":2}]
     healthcheck:
       test: ["CMD", "curl", "-f", "http://localhost:3000"]
       interval: 10s