INTEGRATION-TESTS-V3 - add integration test for --recursive option

Author: hashmap-kz

integration/immutable_data/resolve/plain-recursive/configmap-1.yaml

@@ -0,0 +1,8 @@
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: cm-1-level-0
+data:
+  APP_ENV: "production"
+  APP_DEBUG: "false"

integration/immutable_data/resolve/plain-recursive/configmap-2.yaml

@@ -0,0 +1,8 @@
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: cm-2-level-0
+data:
+  APP_ENV: "production"
+  APP_DEBUG: "false"

integration/immutable_data/resolve/plain-recursive/configmap-3.json

@@ -0,0 +1,11 @@
+{
+  "apiVersion": "v1",
+  "kind": "ConfigMap",
+  "metadata": {
+    "name": "cm-3-level-0"
+  },
+  "data": {
+    "APP_ENV": "production",
+    "APP_DEBUG": "false"
+  }
+}

integration/immutable_data/resolve/plain-recursive/level-1/configmap-1.yaml

@@ -0,0 +1,9 @@
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: cm-1-level-1
+  namespace: kubectl-envsubst-plain-combined
+data:
+  APP_ENV: "production"
+  APP_DEBUG: "false"

integration/immutable_data/resolve/plain-recursive/level-1/configmap-2.json

@@ -0,0 +1,11 @@
+{
+  "apiVersion": "v1",
+  "kind": "ConfigMap",
+  "metadata": {
+    "name": "cm-2-level-1"
+  },
+  "data": {
+    "APP_ENV": "production",
+    "APP_DEBUG": "false"
+  }
+}

integration/immutable_data/resolve/plain-recursive/level-1/level-2/configmap-1.yaml

@@ -0,0 +1,9 @@
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: cm-1-level-2
+  namespace: kubectl-envsubst-plain-combined
+data:
+  APP_ENV: "production"
+  APP_DEBUG: "false"

integration/immutable_data/resolve/plain-recursive/level-1/level-2/configmap-2.json

@@ -0,0 +1,11 @@
+{
+  "apiVersion": "v1",
+  "kind": "ConfigMap",
+  "metadata": {
+    "name": "cm-2-level-2"
+  },
+  "data": {
+    "APP_ENV": "production",
+    "APP_DEBUG": "false"
+  }
+}

integration/plain_recursive_test.go

@@ -0,0 +1,58 @@
+package integration
+
+import (
+	"os"
+	"os/exec"
+	"strings"
+	"testing"
+)
+
+func TestEnvsubstIntegration_NoSubst_Recursive(t *testing.T) {
+
+	if os.Getenv(integrationTestEnv) != integrationTestFlag {
+		t.Log("integration test was skipped due to configuration")
+		return
+	}
+
+	printEnvsubstVersionInfo(t)
+
+	namespaceName := "kubectl-envsubst-plain-recursive"
+	createNs(t, namespaceName)
+
+	// Setup context
+	setContextNs(t, namespaceName)
+
+	// Run kubectl-envsubst
+
+	cmdEnvsubstApply := exec.Command("kubectl",
+		"envsubst",
+		"apply",
+		"-f",
+		"immutable_data/resolve/plain-recursive",
+		"--recursive")
+
+	output, err := cmdEnvsubstApply.CombinedOutput()
+	stringOutput := string(output)
+	if err != nil {
+		t.Fatalf("Failed to run kubectl envsubst: %v, output: %s", err, stringOutput)
+	}
+	t.Logf("\n%s\n", strings.TrimSpace(stringOutput))
+
+	expectResources := []string{
+		"cm-1-level-0",
+		"cm-2-level-0",
+		"cm-3-level-0",
+		"cm-1-level-1",
+		"cm-2-level-1",
+		"cm-1-level-2",
+		"cm-2-level-2",
+	}
+
+	for _, er := range expectResources {
+		expectedOutput := strings.Contains(stringOutput, er)
+		if !expectedOutput {
+			t.Errorf("Expected substituted output to contain '%s', got %s", er, stringOutput)
+		}
+	}
+
+}