Github action to compare bundles

.github/workflows/ci.yaml

@@ -39,3 +39,22 @@ jobs:
     - name: End-to-end tests
       run: |
         make test
+        
+  check-bundles:
+    name: check-bundles
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout Code
+      uses: actions/checkout@v3
+    - name: Download Kustomize
+      run: |
+        curl -s "https://raw.githubusercontent.com/kubernetes-sigs/kustomize/master/hack/install_kustomize.sh" | bash
+        mv kustomize /usr/local/bin/
+    - name: Compare Bundles
+      run: |
+          if make compare-bundles; then
+            echo "Bundles comparison succeeded."
+          else
+            echo "Bundles comparison failed. Please run 'make generate-bundles' and check in changes."
+            exit 1
+          fi

Makefile

@@ -10,7 +10,18 @@ else
 GOBIN=$(shell go env GOBIN)
 endif
 
+SHELL = /usr/bin/env bash -o pipefail
+
 .PHONY: test
 test:
 	./tests/e2e.sh
 
+.PHONY: generate-bundles
+generate-bundles:
+	kustomize build ./config/examples/kube-prometheus | docker run --rm -i ryane/kfilt -i kind=CustomResourceDefinition > ./config/examples/kube-prometheus/bundle_crd.yaml
+	kustomize build ./config/examples/kube-prometheus | docker run --rm -i ryane/kfilt -x kind=CustomResourceDefinition > ./config/examples/kube-prometheus/bundle.yaml
+
+
+.PHONY: compare-bundles
+compare-bundles: generate-bundles
+	git diff --exit-code