helm安装及使用

helm简介

官网文档：https://helm.sh/

helm是kubernetes的包管理器，类似于linux系统下的apt-get或yum

安装

wget https://get.helm.sh/helm-v2.12.3-linux-amd64.tar.gz

cp helm tiller /usr/local/bin

helm version
tiller -version
安装初始化:
kubectl apply -f install/kubernetes/helm/helm-service-account.yaml
[root@k8s-master ~]# helm init --service-account tiller  --skip-refresh

#helm init --upgrade -i registry.cn-hangzhou.aliyuncs.com/google_containers/tiller:v2.11.0 --stable-repo-url https://kubernetes.oss-cn-hangzhou.aliyuncs.com/charts
查看
#kubectl get pod -n kube-system -l app=helm
[root@k8s-master linux-amd64]# kubectl get pod -n kube-system -l app=helm
NAME                             READY   STATUS    RESTARTS   AGE
tiller-deploy-7df745645f-ptzwj   1/1     Running   0          5m22s
[root@k8s-master linux-amd64]#
验证:
[root@k8s-master ~]# helm version
Client: &version.Version{SemVer:"v2.12.3", GitCommit:"eecf22f77df5f65c823aacd2dbd30ae6c65f186e", GitTreeState:"clean"}
Server: &version.Version{SemVer:"v2.12.3", GitCommit:"eecf22f77df5f65c823aacd2dbd30ae6c65f186e", GitTreeState:"clean"}
[root@k8s-master ~]#

helm安装gitlab插件

插件地址：https://github.com/diwakar-s-maurya/helm-git

用户根据公司业务需求，制作适用于自己的helm模板

[root@k8s-master ~]# helm plugin install https://github.com/technosophos/helm-template
[root@k8s-master ~]# helm plugin install helm-git
Installed plugin: helm-git
[root@k8s-master ~]# helm plugin list
NAME VERSION	DESCRIPTION
helm-git	1.0.0 Let's you use private gitlab repositories easily
template	2.5.1+2	Render templates on the local client.
[root@k8s-master ~]#
[root@k8s-node1 helm-git]# helm repo list
NAME  	URL
stable	https://kubernetes-charts.storage.googleapis.com
local 	http://127.0.0.1:8879/charts
[root@k8s-node1 helm-git]# 

 helm plugin remove helm-git
 helm plugin install helm-git
 

添加helm仓库

[root@k8s-master ~]# helm repo list
NAME  	URL
stable	https://kubernetes-charts.storage.googleapis.com
local 	http://127.0.0.1:8879/charts
[root@k8s-master ~]# helm repo add bigdata gitlab://xx:master/helm-jtsys
[root@k8s-master ~]# helm repo list
NAME  	URL
stable	https://kubernetes-charts.storage.googleapis.com
local 	http://127.0.0.1:8879/charts                        

[root@k8s-master ~]#

　　

安装应用　

安装：
helm install --name bigdata bigdata/jtsys --debug --dry-run -f test-bigdata-value.yaml

更新：
helm upgrade bigdata bigdata/jtsys --debug  -f  test-bigdata-value.yaml
动态扩展
kubectl  get deploy -n bigdata --no-headers | awk '{cmd="sleep 10;kubectl  -n company scale --replicas=0 deploy/"$1;system(cmd)}'

　　

helm模板

未完......