command

internal/cluster.go

@@ -0,0 +1,115 @@
+package internal
+
+import (
+	"bytes"
+	"fmt"
+	"oc-k8s/utils"
+	"os"
+	"os/exec"
+)
+
+func Help_Cluster() {
+	fmt.Println(`
+Cluster commands: oc-k8s <action> cluster [env_folder] [release]
+  create   - Create a new kind cluster named 'opencloud'
+  delete   - Delete the kind cluster named 'opencloud'
+  help     - Show this help message
+
+Usage:
+  oc-k8s create cluster [env_folder] [release]
+	env_folder - Helm config folder (required, default: .)
+    release   - Release values name (required, default: dev)
+  oc-k8s delete cluster [env_folder] [release]
+  	env_folder - Helm config folder (required, default: .)
+    release   - Release values name (required, default: dev)
+  oc-k8s help cluster `)
+}
+
+func Delete_Cluster(args ...string) error {
+	folder := "."
+	env := "dev"
+	if len(args) > 0 {
+		folder = args[0]
+	}
+	if len(args) > 1 {
+		env = args[1]
+	}
+	clusterName := "opencloud"
+	if b, err := os.ReadFile(folder + "/" + env + "-values.yaml"); err == nil {
+		clusterName, _ = utils.Extract(string(b), "clusterName")
+	}
+	utils.Exec("kind delete cluster --name " + clusterName)
+	return nil
+}
+
+func Create_Cluster(args ...string) error {
+	Delete_Cluster(args...)
+	folder := "."
+	env := "dev"
+	if len(args) > 0 {
+		folder = args[0]
+	}
+	if len(args) > 1 {
+		env = args[1]
+	}
+	clusterName := "opencloud"
+	if b, err := os.ReadFile(folder + "/" + env + "-values.yaml"); err == nil {
+		clusterName, _ = utils.Extract(string(b), "clusterName")
+	}
+	utils.Exec("kubectl apply -f https://raw.githubusercontent.com/longhorn/longhorn/v1.9.0/deploy/longhorn.yaml ")
+
+	kindConfig := `
+kind: Cluster
+apiVersion: kind.x-k8s.io/v1alpha4
+nodes:
+- role: control-plane
+  kubeadmConfigPatches:
+  - |
+    kind: InitConfiguration
+    nodeRegistration:
+      kubeletExtraArgs:
+        node-labels: "ingress-ready=true"
+  extraPortMappings:
+  - containerPort: 30950
+    hostPort: 80
+    protocol: TCP
+  - containerPort: 30951
+    hostPort: 443
+    protocol: TCP
+containerdConfigPatches:
+- |-
+  [plugins."io.containerd.grpc.v1.cri".registry.mirrors."localhost:5000"]
+    endpoint = ["http://dev-docker-registry-ui-registry-server.opencloud.svc.cluster.local:5000"]
+`
+
+	cmd := exec.Command("kind", "create", "cluster", "--name", clusterName, "--config=-")
+	cmd.Stdin = bytes.NewBufferString(kindConfig)
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+
+	if err := cmd.Run(); err != nil {
+		return err
+	}
+
+	fmt.Println("[WARNING] New cluster should be merged into your current config !")
+
+	if err := utils.Exec("kind get kubeconfig --name " + clusterName + " > /tmp/kind-" + clusterName + ".kubeconfig"); err != nil {
+		return err
+	}
+	if err := utils.Exec("KUBECONFIG=~/.kube/config:/tmp/kind-" + clusterName + ".kubeconfig kubectl config view --flatten --merge --minify > /tmp/merged-kubeconfig.yaml"); err != nil {
+		return err
+	}
+	if err := utils.Exec("sudo mv /tmp/merged-kubeconfig.yaml ~/.kube/config"); err != nil {
+		return err
+	}
+	if err := utils.Exec("chmod 600 ~/.kube/config"); err != nil {
+		return err
+	}
+	if err := utils.Exec("kubectl config get-contexts"); err != nil {
+		return err
+	}
+	if err := utils.Exec("kubectl config use-context kind-opencloud"); err != nil {
+		return err
+	}
+	return nil
+}