output registry address as output instead

Signed-off-by: Thuan Vo <thuan.votann@gmail.com>

Author: tthvo

.github/workflows/test.yaml

@@ -198,13 +198,16 @@ jobs:
           uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b # v4.1.4
 
         - name: Create kind cluster with registry
+          id: kind
           uses: ./
           with:
             registry: true
             registry_name: custom-registry
             registry_port: 5001
 
         - name: Test
+          env:
+            LOCAL_REGISTRY: ${{ steps.kind.outputs.LOCAL_REGISTRY }}
           run: |
             kubectl cluster-info
             kubectl get storageclass standard
@@ -228,6 +231,7 @@ jobs:
           uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b # v4.1.4
 
         - name: Create kind cluster with registry and delete enabled
+          id: kind
           uses: ./
           with:
             registry: true
@@ -236,6 +240,8 @@ jobs:
             registry_enable_delete: true
 
         - name: Test
+          env:
+            LOCAL_REGISTRY: ${{ steps.kind.outputs.LOCAL_REGISTRY }}
           run: |
             kubectl cluster-info
             kubectl get storageclass standard

README.md

@@ -30,7 +30,27 @@ For more information on inputs, see the [API Documentation](https://developer.gi
 - `install_only`: Skips cluster creation, only install kind (default: false)
 - `ignore_failed_clean`: Whether to ignore the post delete cluster action failing (default: false)
 
-## Configuring Local Registry
+### Example Workflow
+
+Create a workflow (eg: `.github/workflows/create-cluster.yml`):
+
+```yaml
+name: Create Cluster
+
+on: pull_request
+
+jobs:
+  create-cluster:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Create k8s Kind Cluster
+        uses: helm/kind-action@v1
+```
+
+This uses [@helm/kind-action](https://github.com/helm/kind-action) GitHub Action to spin up a [kind](https://kind.sigs.k8s.io/) Kubernetes cluster on every Pull Request.
+See [@helm/chart-testing-action](https://github.com/helm/chart-testing-action) for a more practical example.
+
+### Configuring Local Registry
 
 Create a workflow (eg: `.github/workflows/create-cluster-with-registry.yml`):
 
@@ -45,6 +65,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Kubernetes KinD Cluster
+        id: kind
         uses: helm/kind-action@v1
         with:
           registry: true
@@ -53,9 +74,9 @@ jobs:
           registry_enable_delete: true
 ```
 
-This will configure the cluster with an insecure local registry at `my-registry:5001` on both the host and within cluster. Subsequent steps can refer to the registry address with the environment variable `LOCAL_REGISTRY` (i.e. `my-registry:5001`).
+This will configure the cluster with an insecure local registry at `my-registry:5001` on both the host and within cluster. Subsequent steps can refer to the registry address with the output of the kind setup step (i.e. `${{ steps.kind.outputs.LOCAL_REGISTRY }}`).
 
-**Note**: If `config` option is used, you must manually configure the cluster with registry config dir enabled at `/etc/containerd/certs.d`. For example:
+**Note**: If `config` option is used, you must manually configure the cluster nodes with registry config dir enabled at `/etc/containerd/certs.d`. For example:
 
 ```yaml
 kind: Cluster
@@ -66,26 +87,6 @@ containerdConfigPatches:
     config_path = "/etc/containerd/certs.d"
 ```
 
-### Example Workflow
-
-Create a workflow (eg: `.github/workflows/create-cluster.yml`):
-
-```yaml
-name: Create Cluster
-
-on: pull_request
-
-jobs:
-  create-cluster:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Create k8s Kind Cluster
-        uses: helm/kind-action@v1
-```
-
-This uses [@helm/kind-action](https://github.com/helm/kind-action) GitHub Action to spin up a [kind](https://kind.sigs.k8s.io/) Kubernetes cluster on every Pull Request.
-See [@helm/chart-testing-action](https://github.com/helm/chart-testing-action) for a more practical example.
-
 ## Code of conduct
 
 Participation in the Helm community is governed by the [Code of Conduct](CODE_OF_CONDUCT.md).

registry.sh

@@ -129,8 +129,8 @@ create_registry() {
     # Local registry is available at $registry_name:$registry_port
     echo "127.0.0.1 $registry_name" | sudo tee -a /etc/hosts
 
-    # Export environment variable for subsequent steps
-    echo "LOCAL_REGISTRY=$registry_name:$registry_port" >> "$GITHUB_ENV"
+    # Write registry address to output for subsequent steps
+    echo "LOCAL_REGISTRY=$registry_name:$registry_port" >> "$GITHUB_OUTPUT"
 }
 
 connect_registry() {