Helm管理工具怎么用

这篇文章主要介绍了Helm管理工具怎么用，具有一定借鉴价值，感兴趣的朋友可以参考下，希望大家阅读完这篇文章之后大有收获，下面让小编带着大家一起了解一下。

一 Helm 简介

Helm:

chart: 一个helm程序包

Repository: Charts仓库，https/http服务器

Release：特定的chart部署于目标集群上的一个实例

Chart -> Config -> Release

helm:客户端。管理本地Chart仓库，管理Chart，与Tiller服务器交互，发送Chart，实例安装，查询，卸载等操作

Tiller： 服务端，接收helm发来的Chart与Config,合并生成Release

二 部署Helm

1 下载helm

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

2 解压

tar xf helm-v2.13.1-linux-amd64.tar.gz

3 安装helm

cd linux-amd64/mv helm /usr/bin/# helm versionClient: &version.Version{SemVer:"v2.13.1", GitCommit:"618447cbf203d147601b4b9bd7f8c37a5d39fbb4", GitTreeState:"clean"}Error: could not find tiller

4 安装 tiller

部署tiller对于开启rbac认真的集群需要进行rbac授权并且绑定在集群级别的clusterrolebinding

# cat tiller-rbac.yaml apiVersion: v1kind: ServiceAccountmetadata:  name: tiller  namespace: kube-system---apiVersion: rbac.authorization.k8s.io/v1kind: ClusterRoleBindingmetadata:  name: tillerroleRef:  apiGroup: rbac.authorization.k8s.io  kind: ClusterRole  name: cluster-adminsubjects:  - kind: ServiceAccount    name: tiller    namespace: kube-systemkubectl apply -f tiller-rbac.yaml如果想要部署在特定的名称该空间使用请参考官网https://github.com/helm/helm/blob/master/docs/rbac.md查看tiller# kubectl get serviceaccount -n kube-system | grep tillertiller                               1         4m25s

5 初始化tiller

helm init --service-account tiller --history-max 200Creating /root/.helm Creating /root/.helm/repository Creating /root/.helm/repository/cache Creating /root/.helm/repository/local Creating /root/.helm/plugins Creating /root/.helm/starters Creating /root/.helm/cache/archive Creating /root/.helm/repository/repositories.yaml Adding stable repo with URL: https://kubernetes-charts.storage.googleapis.com Adding local repo with URL: http://127.0.0.1:8879/charts $HELM_HOME has been configured at /root/.helm.Tiller (the Helm server-side component) has been installed into your Kubernetes Cluster.Please note: by default, Tiller is deployed with an insecure 'allow unauthenticated users' policy.To prevent this, run `helm init` with the --tiller-tls-verify flag.For more information on securing your installation see: https://docs.helm.sh/using_helm/#securing-your-helm-installationHappy Helming!可以预先设置下载proxyexport HTTPS_PROXY='http://www.ik8s.io:10080'如果提示失败并且是连接https://ip:6443超时可以通过设置环境变量export NO_PROXY='节点ip/16,回环地址/16'再次安装

6 查看tiller

# kubectl get pod -n kube-system | grep tillertiller-deploy-876ff889-jjfn9      1/1     Running   0          4m29s# helm versionClient: &version.Version{SemVer:"v2.13.1", GitCommit:"618447cbf203d147601b4b9bd7f8c37a5d39fbb4", GitTreeState:"clean"}Server: &version.Version{SemVer:"v2.13.1", GitCommit:"618447cbf203d147601b4b9bd7f8c37a5d39fbb4", GitTreeState:"clean"}

7 helm chart 官方可用仓库

1) helm.sh2) hub.kubeapps.com

8 升级仓库

helm repo update

9 helm基本使用

1) 查看 某chart# helm search jenkinsNAME                  CHART VERSION      APP VERSION        DESCRIPTION                                                 stable/jenkins  1.1.16               lts             Open source continuous integration server. It supports mu...2) 查看chart的详细信息helm inspect stable/jenkins3) 安装某应用helm install --name memcached stable/memcached4) 卸载某个应用helm delete  memcached 5) 查看应用列表helm list6) 获取charthelm get/fatch  stable/jenkins7) 历史管理helm history memcached8)创建charthelm create ..9) 打包helm  package ..10) 回滚 helm rollback ...11) 查看helm版本helm  version12) 查看状态helm status......通过helm --help 获取

10 helm家目录

家目录主要查看我们使用过的chart

/root/.helm/

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