Add workflow to validate deployment methods

Author: pcallewaert

.github/workflows/validate-deployments.yaml

@@ -0,0 +1,44 @@
+name: Validate Deployment methods
+
+on:
+  push:
+    branches:
+      - master
+    paths:
+      - "charts/ext-postgres-operator/**"
+      - "config/**"
+  pull_request:
+    branches:
+      - master
+    paths:
+      - "charts/ext-postgres-operator/**"
+      - "config/**"
+
+jobs:
+  validate-helm:
+    name: Validate Helm Chart
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Helm
+        uses: azure/setup-helm@v3
+        with:
+          version: "latest"
+
+      - name: Lint Helm chart
+        run: helm lint ./charts/ext-postgres-operator
+
+      - name: Template Helm chart
+        run: helm template ext-postgres-operator ./charts/ext-postgres-operator > /dev/null
+
+  validate-kustomize:
+    name: Validate Kustomize Configuration
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Validate Kustomize configuration
+        run: kustomize build ./config/default > /dev/null

README.md

@@ -120,17 +120,12 @@ To install the operator using Kustomize, follow these steps:
 
 1. Configure Postgres credentials for the operator in `config/secret.yaml`.
 
-2. Create the namespace if needed:
-   ```bash
-   kubectl apply -f config/namespace.yaml
-   ```
-
-3. Apply the secret:
+2. Apply the secret:
    ```bash
    kubectl apply -f deploy/secret.yaml
    ```
 
-4. Deploy the operator:
+3. Deploy the operator:
    ```bash
    kubectl kustomize config/default/ | kubectl apply -f -
    ```