add unit test to check if default image tags for k8s control plane co…

…mponents are in sync

config/config_test.go

@@ -2,6 +2,8 @@ package config
 
 import (
 	_ "embed"
+	"fmt"
+	"os"
 	"strings"
 	"testing"
 
@@ -378,3 +380,24 @@ func TestConfig_IsProFeatureEnabled(t *testing.T) {
 		})
 	}
 }
+
+func TestIfDefaultImagesVersionsAreInSync(t *testing.T) {
+	defaultConfig, err := NewDefaultConfig()
+	assert.NilError(t, err)
+	// this will fail when this test is moved or _init-containers.tpl is moved
+	initContainersTplFilePath := "../chart/templates/_init-containers.tpl"
+	tplBytes, err := os.ReadFile(initContainersTplFilePath)
+
+	assert.NilError(t, err)
+	assert.Equal(t, defaultConfig.ControlPlane.Distro.K8S.ControllerManager.Image.Tag, defaultConfig.ControlPlane.Distro.K8S.APIServer.Image.Tag)
+	assert.Equal(t, defaultConfig.ControlPlane.Distro.K8S.ControllerManager.Image.Tag, defaultConfig.ControlPlane.Distro.K8S.Scheduler.Image.Tag)
+	assert.Equal(t, defaultConfig.ControlPlane.Distro.K8S.APIServer.Image.Tag, defaultConfig.ControlPlane.Distro.K8S.Scheduler.Image.Tag)
+	expectedDefaultTag := fmt.Sprintf("{{- $defaultTag := \"%s\" -}}", defaultConfig.ControlPlane.Distro.K8S.ControllerManager.Image.Tag)
+	got := strings.Count(string(tplBytes), expectedDefaultTag)
+	assert.Equal(
+		t, got, 3,
+		fmt.Sprintf("please update $defaultTag in %s so it's equal to the "+
+			".Values.controlPlane.distro.k8s.controllerManager.image.tag",
+			initContainersTplFilePath),
+	)
+}

hack/test.sh

@@ -7,10 +7,9 @@ export GOFLAGS=-mod=vendor
 # Test if we can build the program
 echo "Building virtual cluster..."
 go generate ./... && CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build cmd/vcluster/main.go || exit 1
- 
+
 # List packages
 PKGS=$(go list ./... | grep -v -e /vendor/ -e /test)
-
 echo "Start testing..."
 fail=false
 for pkg in $PKGS; do