oc-k8s/internal/helm.go

package internal

import (
	"fmt"
	"oc-k8s/utils"
	"os"
)

func Help_Helm() {
	fmt.Println(`
Helm commands: oc-k8s <action> helm
  install  - Install Helm
  create   - Install a helm release for the given environment (default: dev)
  delete   - Uninstall a helm release for the given environment (default: dev)
  help     - Show this help message

Usage:
  oc-k8s install helm 
  oc-k8s create helm -n [namespace] -r [release] -f [folder] 
  	folder    - Helm config folder (required, default: .)
    release   - environnement selected (default: dev)
	namespace - namespace selected (default: dev)
  oc-k8s upgrade helm -n [namespace] -r [release] -f [folder] 
  	folder    - Helm config folder (required, default: .)
    release   - environnement selected (default: dev)
	namespace - namespace selected (default: dev)
  oc-k8s delete helm -n [namespace] -r [release] -f [folder] 
  	folder    - Helm config folder (required, default: .)
    release   - environnement selected (default: dev)
	namespace - namespace selected (default: dev)
  oc-k8sh help helm`)
}

func Install_Helm() error {
	utils.Exec("curl https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3 | bash")
	utils.Exec("helm version")
	return nil
}

func Delete_Helm(release string, namespace string) error {
	utils.Exec("helm uninstall " + release + " -n " + namespace)
	utils.Exec("kubectl delete namespace " + namespace + " &")
	return nil
}

func Create_Helm(folder string, release string, namespace string) error {
	tmp := "./opencloud-chart"
	utils.Exec("sudo rm -rf " + tmp)
	if err := os.MkdirAll(tmp, os.ModePerm); err != nil {
		fmt.Println(err)
		return err
	}
	ExtractTrees("assets", tmp)

	clusterName := "opencloud"

	host := "beta.opencloud.com"
	if b, err := os.ReadFile(folder + "/" + release + "-values.yaml"); err == nil {
		clusterName, _ = utils.Extract(string(b), "clusterName")
		host, _ = utils.Extract(string(b), "host")
	}

	fmt.Println("set up helm")
	if err := utils.Exec("helm dependency update " + tmp); err != nil {
		return err
	}
	fmt.Println("set up deps")
	for name, repo := range utils.ExtractRepo() {
		utils.Exec("helm repo add " + name + " " + repo)
	}
	if err := utils.Exec("helm dependency build " + tmp); err != nil {
		return err
	}
	utils.Exec("sudo ulimit -n 1000000")

	utils.Exec("helm repo add jetstack https://charts.jetstack.io")
	utils.Exec("helm repo update")

	utils.Exec("kubectl apply -f https://github.com/cert-manager/cert-manager/releases/latest/download/cert-manager.crds.yaml")
	utils.Exec("helm repo add jetstack https://charts.jetstack.io")
	utils.Exec("helm repo update")
	utils.Exec("helm install cert-manager jetstack/cert-manager  --namespace cert-manager --create-namespace --version v1.14.0")

	utils.Exec("helm install admiralty oci://public.ecr.aws/admiralty/admiralty --namespace admiralty --create-namespace --version 0.17.0 --wait")
	utils.Exec("helm repo add argo https://argoproj.github.io/argo-helm")
	utils.Exec("helm repo update")
	utils.Exec("helm install argo-workflows argo/argo-workflows --namespace argo --create-namespace")

	if err := utils.Exec("helm upgrade --install " + release + " " + tmp + " -n " + namespace + " --create-namespace -f " + folder + "/" + release + "-values.yaml --debug"); err != nil {
		return err
	}

	utils.Exec("kind get kubeconfig --name " + clusterName + " > ./deployed_config")
	utils.Exec("kind export logs ./kind-logs")
	utils.Exec("sudo rm -rf " + tmp)

	utils.Exec("sudo sed -i.bak \"/[[:space:]]" + host + "$/d\" /etc/hosts")
	utils.Exec("echo \"$(kubectl get nodes -o jsonpath='{.items[0].status.addresses[?(@.type==\"InternalIP\")].address}') " + host + "\" | sudo tee -a /etc/hosts > /dev/null")

	return nil
}

func Upgrade_Helm(folder string, release string, namespace string) error {
	tmp := "./opencloud-chart"
	if err := os.MkdirAll(tmp, os.ModePerm); err != nil {
		fmt.Println(err)
		return err
	}
	defer os.RemoveAll(tmp)
	ExtractTrees("assets", tmp)

	Delete_Cluster(folder, release)

	return utils.Exec("helm upgrade " + release + " " + tmp + " -n " + namespace + " --create-namespace -f " + folder + "/" + release + "-values.yaml")
}