feat: add option to enable delete operations on the registry

.github/workflows/test.yaml

@@ -148,6 +148,44 @@ jobs:
             exit 1
           fi
 
+  test-with-registry-with-delete-rights:
+    strategy:
+      matrix:
+        version:
+          - v0.17.0
+        os: [ubuntu-latest, macos-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v1
+
+      - name: Create kind cluster with registry
+        uses: ./
+        with:
+          version: "${{ matrix.version }}"
+          registry_delete: true
+
+      - name: Test
+        run: |
+          kubectl cluster-info
+          kubectl get storageclass standard
+
+          # Checking env variable
+          if [[ "$KIND_REGISTRY" != "kind-registry:5000" ]]; then
+            echo "Wrong KIND_REGISTRY env variable: $KIND_REGISTRY"
+            exit 1
+          fi
+
+          # Test registry usage inside cluster
+          docker pull busybox
+          docker tag busybox kind-registry:5000/localbusybox
+
+          # Test delete API
+          OUTPUT=$(docker push kind-registry:5000/localbusybox | grep -o 'digest.*size')
+          TRIM=${OUTPUT//digest: /}
+          DIGEST=${TRIM// size/}
+          exit $(curl -X DELETE kind-registry:5000/v2/localbusybox/manifests/$DIGEST)
+
   test-knative:
     strategy:
       matrix:

README.md

@@ -24,6 +24,7 @@ For more information on inputs, see the [API Documentation](https://developer.gi
 - `wait`: The duration to wait for the control plane to become ready (default: `60s`)
 - `log_level`: The log level for KinD
 - `registry`: Configures an insecure registry on `kind-registry:5000` to be used with KinD (default: `true`)
+- `registry_delete`: Set to true to enable delete operations on the Image Registry (default is `false`)
 - `kubectl_version`: The kubectl version to use (default: `v1.26.1`)
 - `knative_serving`: The version of Knative Serving to install on the Kind cluster (not installed by default - example: `v1.0.0`)
 - `knative_kourier`: The version of Knative Net Kourier to install on the Kind cluster (not installed by default - example: `v1.0.0`)

action.yml

@@ -19,6 +19,8 @@ inputs:
     description: "The log level for KinD"
   registry:
     description: "Configures an insecure registry on kind-registry:5000 to be used with KinD (default: true)"
+  registry_delete:
+    description: "Enables delete operations on the Image Registry (default is false)"
   kubectl_version:
     description: "The version of kubectl to use (default: v1.26.1)"
   knative_serving:

main.sh

@@ -75,6 +75,11 @@ main() {
         args_registry+=(--memory "${INPUT_MEMORY}")
     fi
 
+    if [[ -n "${INPUT_REGISTRY_DELETE:-}" ]]; then
+        args_registry+=(--registry-delete "${INPUT_REGISTRY_DELETE}")
+    fi
+
+
     if [[ -z "${INPUT_REGISTRY:-}" ]] || [[ "$(echo ${INPUT_REGISTRY} | tr '[:upper:]' '[:lower:]')" = "true" ]]; then
         if [[ ${#args_registry[@]} -gt 0 ]]; then
             "$SCRIPT_DIR/registry.sh" "${args_registry[@]}"

registry.sh

@@ -35,6 +35,7 @@ Usage: $(basename "$0") <options>
         --registry-image                    The registry image to use (default: $DEFAULT_REGISTRY_IMAGE)
         --registry-name                     The registry name to use (default: $DEFAULT_REGISTRY_NAME)
         --registry-port                     The local port used to bind the registry (default: $DEFAULT_REGISTRY_PORT)
+        --registry-delete                   Enable delete operations on the registry (default is false)
         -n, --cluster-name                  The name of the cluster to create (default: $DEFAULT_CLUSTER_NAME)"
         --document                          Document the local registry
 
@@ -45,6 +46,7 @@ main() {
     local registry_image="$DEFAULT_REGISTRY_IMAGE"
     local registry_name="$DEFAULT_REGISTRY_NAME"
     local registry_port="$DEFAULT_REGISTRY_PORT"
+    local registry_delete="false"
     local cluster_name="$DEFAULT_CLUSTER_NAME"
     local cpu="$DEFAULT_CPU"
     local disk="$DEFAULT_DISK"
@@ -132,6 +134,16 @@ parse_command_line() {
                     exit 1
                 fi
                 ;;
+            --registry-delete)
+                if [[ -n "${2:-}" ]]; then
+                    registry_delete="$2"
+                    shift
+                else
+                    echo "ERROR: '--registry-delete' cannot be empty." >&2
+                    show_help
+                    exit 1
+                fi
+                ;;
             -n|--cluster-name)
                 if [[ -n "${2:-}" ]]; then
                     cluster_name="$2"
@@ -170,9 +182,10 @@ install_docker() {
 }
 
 create_registry() {
-    echo "Creating registry \"$registry_name\" on port $registry_port from image \"$registry_image\"..."
-    docker run -d --restart=always -p "${registry_port}:5000" --name "${registry_name}" $registry_image > /dev/null
-
+    echo "Creating registry \"$registry_name\" on port $registry_port from image \"$registry_image\" with delete enabled $registry_delete ..."
+    docker run -d --restart=always -p "${registry_port}:5000" -e "REGISTRY_STORAGE_DELETE_ENABLED=${registry_delete}" --name "${registry_name}" $registry_image
+> /dev/null
+
     # Adding registry to /etc/hosts
     echo "127.0.0.1 $registry_name" | sudo tee -a /etc/hosts