helm的作用：

把许多的定义 比如svc，比如deployment，比如securt一次性全部定义好，放在源里统一管理，这样很容器在其他机器上部署

helm.png

安装helm

提前下载所需要的文件

wget https://kubernetes-helm.storage.googleapis.com/helm-v2.11.0-linux-amd64.tar.gz
wget https://kubernetes-helm.storage.googleapis.com/helm-v2.11.0-linux-amd64.tar.gz.sha256
wget https://raw.githubusercontent.com/kubernetes/helm/master/scripts/get

修改get脚本downloadFile() 和checkDesiredVersion()模块如下

downloadFile() {
  HELM_DIST="helm-$TAG-$OS-$ARCH.tar.gz"
  DOWNLOAD_URL="https://kubernetes-helm.storage.googleapis.com/$HELM_DIST"
  CHECKSUM_URL="$DOWNLOAD_URL.sha256"
  HELM_TMP_ROOT="$(mktemp -dt helm-installer-XXXXXX)"
  HELM_TMP_FILE="$HELM_TMP_ROOT/$HELM_DIST"
  HELM_SUM_FILE="$HELM_TMP_ROOT/$HELM_DIST.sha256"
  echo "Downloading $DOWNLOAD_URL"
  mkdir -p $HELM_TMP_ROOT
  cp helm* $HELM_TMP_ROOT
}

checkDesiredVersion() {
  if [ "x$DESIRED_VERSION" == "x" ]; then
    # Get tag from release URL
    local latest_release_url="https://github.com/helm/helm/releases/latest"
    TAG=v2.11.0
  fi
}

开始安装

#执行get脚本
chmod a+x get
./get

#查看版本
helm version

#添加helm  bash 命令到用户环境
helm completion bash > ~/.hemlrc; echo "source ~/.hemlrc" >> ~/.bashrc

安装tiller

#初始化
docker pull registry.us-east-1.aliyuncs.com/acs/tiller:v2.11.0

helm init --service-account tiller --tiller-image registry.us-east-1.aliyuncs.com/acs/tiller:v2.11.0

#升级
helm init --upgrade

#创建service账户
kubectl create serviceaccount --namespace kube-system tiller

#创建cluster账户
kubectl create clusterrolebinding tiller-cluster-rule --clusterrole=cluster-admin -- serviceaccount=kube-system:tiller

#指定镜像和charts进行初始化
helm init --service-account tiller --tiller-image registry.us-east-1.aliyuncs.com/acs/tiller:v2.11.0 --stable-repo-url https://kubernetes.oss-cn-hangzhou.aliyuncs.com/charts

helm的基本操作

#查看源
helm repo list

#查找源
helm search
helm search redis
helm search mysql