helm安装和使用

2019-05-24

kubernetes helm

安装依赖
下载所需文件
初始化helm
验证
修改repo
创建rabc
部署mysql

Helm是一个kubernetes应用的包管理工具，用来管理charts——预先配置好的安装包资源，有点类似于Ubuntu的APT和CentOS中的yum。

安装依赖

1	yum -y install socat

所有节点都安装

下载所需文件

下载helm包

1	wget https://storage.googleapis.com/kubernetes-helm/helm-v2.13.1-linux-amd64.tar.gz

如果你没有科学上网可能无法下载，可通过下面的方法下载

1
2
3

wget https://source-82722.oss-cn-beijing.aliyuncs.com/helm/helm-v2.13.1-linux-amd64.tar.gz
tar zxf helm-v2.13.1-linux-amd64.tar.gz
mv linux-amd64 /usr/local/bin/helm

下载tiller镜像

如果你使用了科学上网可忽略该步骤，一位大牛提供了针对国外镜像的下载，有兴趣的可以看下https://github.com/zhangguanzhang/gcr.io

curl -s https://zhangguanzhang.github.io/bash/pull.sh | bash -s --  gcr.io/kubernetes-helm/tiller:v2.13.1
v2.13.1: Pulling from zhangguanzhang/gcr.io.kubernetes-helm.tiller
5d20c808ce19: Pull complete
43339c468bb6: Pull complete
d6d696e230df: Pull complete
9cf2c942cf64: Pull complete
Digest: sha256:d52b34a9f9aeec1cf74155ca51fcbb5d872a705914565c782be4531790a4ee0e
`

初始化helm

helm init

验证

tiller运行正常

1
2
3

kubectl -n kube-system get pod -l app=helm
NAME                            READY   STATUS    RESTARTS   AGE
tiller-deploy-c48485567-shwp5   1/1     Running   0          50m

1
2
3

helm version
Client: &version.Version{SemVer:"v2.13.1", GitCommit:"618447cbf203d147601b4b9bd7f8c37a5d39fbb4", GitTreeState:"clean"}
Server: &version.Version{SemVer:"v2.13.1", GitCommit:"618447cbf203d147601b4b9bd7f8c37a5d39fbb4", GitTreeState:"clean"}

修改repo

 $ helm repo list
NAME  	URL
stable	https://kubernetes-charts.storage.googleapis.com
local 	http://127.0.0.1:8879/charts
$ helm repo remove stable
"stable" has been removed from your repositories
$ helm repo add stable https://kubernetes.oss-cn-hangzhou.aliyuncs.com/charts
"stable" has been added to your repositories
$ helm repo update
Hang tight while we grab the latest from your chart repositories...
...Skip local chart repository
...Successfully got an update from the "stable" chart repository
Update Complete. ⎈ Happy Helming!⎈
$ helm repo list
NAME  	URL
local 	http://127.0.0.1:8879/charts
stable	https://kubernetes.oss-cn-hangzhou.aliyuncs.com/charts

创建rabc

kubectl create serviceaccount --namespace=kube-system tiller
kubectl create clusterrolebinding tiller-cluster-rule --clusterrole=cluster-admin --serviceaccount=kube-system:tiller
kubectl patch deploy --namespace=kube-system tiller-deploy -p '{"spec":{"template":{"spec":{"serviceAccount":"tiller"}}}}'

部署mysql

helm install stable/mysql
kubectl get pod
NAME                                READY   STATUS    RESTARTS   AGE
dull-snail-mysql-5d4b968dff-w57l5   1/1     Running   0          96s

上一篇：kubernetes中Horizontal Pod Autoscaler的理解