Adding a new Minikube flag for helm chart install of Apache Camel K (#521)

* 🎁 Adding a new flag on Minikube for helm chart install of Apache Camel K

Signed-off-by: Matthias Wessendorf <[email protected]>

* 💄 Applying feedbac from David S.

Signed-off-by: Matthias Wessendorf <[email protected]>

---------

Signed-off-by: Matthias Wessendorf <[email protected]>

Author: matzew

README.md

@@ -6,7 +6,7 @@
 
 ## Getting Started
 
-Note: In order to use the `quickstart` plugin, you must install the [Kubernetes CLI `kubectl`](https://kubernetes.io/docs/tasks/tools/install-kubectl) and either [`kind`](https://kind.sigs.k8s.io/docs/user/quick-start) or [`minikube`](https://minikube.sigs.k8s.io/docs/start/).
+Note: In order to use the `quickstart` plugin, you must install the [Kubernetes CLI `kubectl`](https://kubernetes.io/docs/tasks/tools/install-kubectl) and either [`kind`](https://kind.sigs.k8s.io/docs/user/quick-start) or [`minikube`](https://minikube.sigs.k8s.io/docs/start/). If you want to install the Apache Camel K option you also need the [`helm`](https://helm.sh/) CLI.
 
 ### Installation
 

internal/command/flags.go

@@ -24,6 +24,7 @@ var name string
 var kubernetesVersion string
 var installServing bool
 var installEventing bool
+var installCamel bool
 var installKindRegistry bool
 var installKindExtraMountHostPath string
 var installKindExtraMountContainerPath string
@@ -55,6 +56,10 @@ func installEventingOption(targetCmd *cobra.Command) {
 	targetCmd.Flags().BoolVar(&installEventing, "install-eventing", false, "install Eventing on quickstart cluster")
 }
 
+func installCamelOption(targetCmd *cobra.Command) {
+	targetCmd.Flags().BoolVar(&installCamel, "install-camel", false, "install Apache Camel K on quickstart cluster")
+}
+
 func installKindRegistryOption(targetCmd *cobra.Command) {
 	targetCmd.Flags().BoolVar(&installKindRegistry, "registry", false, "install registry for Kind quickstart cluster")
 }

internal/command/minikube.go

@@ -30,13 +30,14 @@ func NewMinikubeCommand() *cobra.Command {
 		Short: "Quickstart with Minikube",
 		RunE: func(cmd *cobra.Command, args []string) error {
 			fmt.Println("Running Knative Quickstart using Minikube")
-			return minikube.SetUp(name, kubernetesVersion, installServing, installEventing)
+			return minikube.SetUp(name, kubernetesVersion, installServing, installEventing, installCamel)
 		},
 	}
 	// Set minikubeCmd options
 	clusterNameOption(minikubeCmd, "knative")
 	kubernetesVersionOption(minikubeCmd, "", "kubernetes version to use (1.x.y)")
 	installServingOption(minikubeCmd)
 	installEventingOption(minikubeCmd)
+	installCamelOption(minikubeCmd)
 	return minikubeCmd
 }

pkg/install/install.go

@@ -205,6 +205,34 @@ metadata:
 	return nil
 }
 
+func CamelK(registryAddress string) error {
+	fmt.Println("🐪 Installing Apache Camel K  ... ")
+
+	if err := addHelmRepo(); err != nil {
+		fmt.Printf("Error adding Helm repo: %v\n", err)
+		return err
+	}
+	fmt.Println("Helm repo added successfully")
+
+	// Run the Helm install command
+	if err := runHelmInstall(registryAddress); err != nil {
+		fmt.Printf("Error: %v\n", err)
+		return err
+	}
+
+	if err := waitForCRDsEstablished(); err != nil {
+		return fmt.Errorf("crds: %w", err)
+	}
+	fmt.Println("    CRDs installed...")
+
+	if err := waitForPodsReady("default"); err != nil {
+		return fmt.Errorf("core: %w", err)
+	}
+	fmt.Println("    Apache Camel K installed...")
+
+	return nil
+}
+
 func runCommand(c *exec.Cmd) error {
 	if out, err := c.CombinedOutput(); err != nil {
 		fmt.Println(string(out))
@@ -237,3 +265,37 @@ func waitForCRDsEstablished() error {
 func waitForPodsReady(ns string) error {
 	return runCommand(exec.Command("kubectl", "wait", "pod", "--timeout=10m", "--for=condition=Ready", "-l", "!job-name", "-n", ns))
 }
+
+//nolint:gosec // avoid linter warnings
+func runHelmInstall(registryAddress string) error {
+
+	// Check if helm CLI is installed
+	if _, err := exec.LookPath("helm"); err != nil {
+		return fmt.Errorf("Please install helm CLI")
+	}
+
+	cmd := exec.Command("helm", "install",
+		"--generate-name",
+		"--set", fmt.Sprintf("platform.build.registry.address=%s", registryAddress),
+		"--set", "platform.build.registry.insecure=true",
+		"camel-k/camel-k")
+
+	cmd.Stdout = cmd.Stderr
+
+	if out, err := cmd.CombinedOutput(); err != nil {
+		fmt.Println(string(out))
+		return fmt.Errorf("failed to run helm install: %w", err)
+	}
+	return nil
+}
+
+func addHelmRepo() error {
+	cmd := exec.Command("helm", "repo", "add", "camel-k", "https://apache.github.io/camel-k/charts/")
+	cmd.Stdout = cmd.Stderr
+
+	if out, err := cmd.CombinedOutput(); err != nil {
+		fmt.Println(string(out))
+		return fmt.Errorf("failed to add helm repo: %w", err)
+	}
+	return nil
+}

pkg/minikube/minikube.go

@@ -35,7 +35,7 @@ var memory = "3072"
 var installKnative = true
 
 // SetUp creates a local Minikube cluster and installs all the relevant Knative components
-func SetUp(name, kVersion string, installServing, installEventing bool) error {
+func SetUp(name, kVersion string, installServing, installEventing, installCamel bool) error {
 	start := time.Now()
 
 	// if neither the "install-serving" or "install-eventing" flags are set,
@@ -83,6 +83,19 @@ func SetUp(name, kVersion string, installServing, installEventing bool) error {
 			if err := install.Eventing(); err != nil {
 				return fmt.Errorf("install eventing: %w", err)
 			}
+
+			if installCamel {
+
+				registryAddress, err := getMinikubeRegistryAddress()
+				if err != nil {
+					fmt.Printf("Error: %v\n", err)
+					return err
+				}
+
+				if err := install.CamelK(registryAddress); err != nil {
+					return fmt.Errorf("install Apache Camel K: %w", err)
+				}
+			}
 		}
 	}
 
@@ -271,3 +284,13 @@ func recreateCluster() error {
 	}
 	return nil
 }
+
+func getMinikubeRegistryAddress() (string, error) {
+	cmd := exec.Command("kubectl", "-n", "kube-system", "get", "service", "registry", "-o", "jsonpath={.spec.clusterIP}")
+	out, err := cmd.CombinedOutput()
+	if err != nil {
+		return "", fmt.Errorf("failed to get registry address: %w", err)
+	}
+	address := strings.TrimSpace(string(out))
+	return address, nil
+}