Add e2e tests

Signed-off-by: Stefan Prodan <stefan.prodan@gmail.com>

.github/workflows/test.yaml

@@ -0,0 +1,23 @@
+name: test
+
+on:
+  workflow_dispatch:
+  pull_request:
+  push:
+    branches: [ '*' ]
+    tags-ignore: [ '*' ]
+
+jobs:
+  manifests:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Setup yq
+        uses: fluxcd/pkg/actions/yq@main
+      - name: Setup kubeconform
+        uses: fluxcd/pkg/actions/kubeconform@main
+      - name: Setup kustomize
+        uses: fluxcd/pkg/actions/kustomize@main
+      - name: Validate manifests
+        run: make validate