test: integration test for post deploy hook namespaces values

integration/deploy_hooks_test.go

@@ -0,0 +1,78 @@
+/*
+Copyright 2023 The Skaffold Authors
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package integration
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/GoogleContainerTools/skaffold/v2/integration/skaffold"
+	"github.com/GoogleContainerTools/skaffold/v2/testutil"
+)
+
+func TestPostDeployHooksNamespaces(t *testing.T) {
+	MarkIntegrationTest(t, CanRunWithoutGcp)
+
+	tests := []struct {
+		description  string
+		dir          string
+		configFile   string
+		resourceFile string
+	}{
+		{
+			description: "set SKAFFOLD_NAMESPACES from manifests with kubectl deployer",
+			configFile: `apiVersion: skaffold/v4beta6
+kind: Config
+manifests:
+  rawYaml:
+  - pod.yaml
+
+deploy:
+  kubectl:
+    hooks:
+      after:
+        - host:
+            command: ["sh", "-c", "echo $SKAFFOLD_NAMESPACES"]
+`,
+			resourceFile: `apiVersion: v1
+kind: Pod
+metadata:
+  name: getting-started
+  namespace: %v
+spec:
+  containers:
+  - name: getting-started
+    image: us-central1-docker.pkg.dev/k8s-skaffold/testing/skaffold-example
+`,
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.description, func(t *testing.T) {
+			ns, _ := SetupNamespace(t)
+			expectedOutput := fmt.Sprintf("Starting post-deploy hooks...\n%v", ns.Name)
+			resourceWithNs := fmt.Sprintf(test.resourceFile, ns.Name)
+
+			dir := testutil.NewTempDir(t)
+			dir.Write("skaffold.yaml", test.configFile)
+			dir.Write("pod.yaml", resourceWithNs)
+			out, err := skaffold.Run().InDir(dir.Root()).RunWithCombinedOutput(t)
+			testutil.CheckError(t, false, err)
+			testutil.CheckContains(t, expectedOutput, string(out))
+		})
+	}
+}