helm 相关

一、快速安装

helm release

wget https://get.helm.sh/helm-v3.8.0-linux-amd64.tar.gz
tar -zxvf helm-*-linux-amd64.tar.gz
cp helm /usr/local/bin/helm
chmod 777 /usr/local/bin/helm

https://github.com/chartmuseum/helm-push releases

wget https://github.com/chartmuseum/helm-push/releases/download/v0.10.2/helm-push_0.10.2_linux_amd64.tar.gz
HELM_PUSH=${HOME}/.local/share/helm/plugins
mkdir -p ${HELM_PUSH}
tar -zxvf helm-push-*.tar.gz -C ${HELM_PUSH}

cp registries.yaml /etc/cloud/k8s/
systemctl restart k8s

二、Helm v3

helmv3

helm-v2-v3

三、Helm 客户端安装(v3.0.0)

1、使用官方脚本安装
curl https://raw.githubusercontent.com/helm/helm/master/scripts/get-helm-3 | bash

curl https://raw.githubusercontent.com/helm/helm/master/scripts/get-helm-3 > get_helm.sh
chmod 700 get_helm.sh
./get_helm.sh
2、添加常用 Chart 源
#应该都不需要墙,stable是官方的,aliyuncs最快
helm repo add stable https://kubernetes-charts.storage.googleapis.com
helm repo add aliyuncs https://apphub.aliyuncs.com
helm repo add bitnami https://charts.bitnami.com/bitnami
3、查看 Chart 源
helm repo list
4、查找应用
helm search repo tomcat
5、直接从 Chart 在线安装,需要实现创建动态存储卷等。
helm install my-tomcat aliyuncs/tomcat
NAME: my-tomcat
LAST DEPLOYED: Thu Dec  5 13:56:04 2019
NAMESPACE: default
STATUS: deployed
REVISION: 1
TEST SUITE: None
NOTES:
** Please be patient while the chart is being deployed **

1. Get the Tomcat URL by running:

** Please ensure an external IP is associated to the my-tomcat service before proceeding **
** Watch the status using: kubectl get svc --namespace default -w my-tomcat **

  export SERVICE_IP=$(kubectl get svc --namespace default my-tomcat --template "{{ range (index .status.loadBalancer.ingress 0) }}{{.}}{{ end }}")
  echo URL            : http://$SERVICE_IP/
  echo Management URL : http://$SERVICE_IP/manager

2. Login with the following credentials

  echo Username: user
  echo Password: $(kubectl get secret --namespace default my-tomcat -o jsonpath="{.data.tomcat-password}" | base64 --decode)
6、离线安装
helm pull aliyuncs/tomcat

解压

tar -zxvf tomcat-6.0.5.tgz 

tomcat/Chart.yaml
tomcat/values.yaml
tomcat/templates/NOTES.txt
tomcat/templates/_helpers.tpl
tomcat/templates/deployment.yaml
tomcat/templates/ingress.yaml
tomcat/templates/pvc.yaml
tomcat/templates/secrets.yaml
tomcat/templates/svc.yaml
tomcat/.helmignore

修改 tomcat/values.yaml,改为 NodePort 方式,并取消动态存储卷配置。

vim tomcat/values.yaml

service:
  type: LoadBalancer
  # HTTP Port
  port: 80

改为

service:
  type: NodePort
  # HTTP Port
  port: 80

##########################
persistence:
  enabled: true

改为

persistence:
  enabled: false

离线安装 tomcat

helm install my-tomcat tomcat

NAME: my-tomcat
LAST DEPLOYED: Thu Dec  5 14:06:40 2019
NAMESPACE: default
STATUS: deployed
REVISION: 1
TEST SUITE: None
NOTES:
** Please be patient while the chart is being deployed **

1. Get the Tomcat URL by running:

  export NODE_PORT=$(kubectl get --namespace default -o jsonpath="{.spec.ports[0].nodePort}" services aa-tomcat)
  export NODE_IP=$(kubectl get nodes --namespace default -o jsonpath="{.items[0].status.addresses[0].address}")
  echo http://$NODE_IP:$NODE_PORT/

2. Login with the following credentials

  echo Username: user
  echo Password: $(kubectl get secret --namespace default aa-tomcat -o jsonpath="{.data.tomcat-password}" | base64 --decode)

四、常用功能

1、创建一个 Chart 模板
helm create test
2、打包 Chart 模板
helm package test
3、查看 Chart 信息
helm show chart test-0.1.0.tgz
4、先移除原先的仓库
helm repo remove stable
5、添加新的仓库地址
helm repo add stable https://kubernetes.oss-cn-hangzhou.aliyuncs.com/charts
6、更新仓库
helm repo update

五、使用 harbor 作为仓库存储 Charts

https://github.com/goharbor/harbor-helm

1、添加 harbor repo
helm repo add goharbor https://helm.goharbor.io
2、创建命名空间 test(可以跳过)
kubectl create namespace test
3、查看当前context(可以跳过)
kubectl config current-context
4、设置 context 指定对应的 namespace,不指定使用的是 default(可以跳过)
kubectl config set-context <current-context> --namespace test

这里是因为,helm 3 开始helm 3 的执行权限和kubectl config 的权限是一致的,通过kubectl config的方式来控制helm 3 的执行权限。

5、可以提前拉取以下镜像(harbor-1.2.3)
docker pull goharbor/chartmuseum-photon:v0.9.0-v1.9.3
docker pull goharbor/redis-photon:v1.9.3
docker pull goharbor/clair-photon:v2.1.0-v1.9.3
docker pull goharbor/notary-server-photon:v0.6.1-v1.9.3
docker pull goharbor/notary-signer-photon:v0.6.1-v1.9.3
docker pull goharbor/harbor-registryctl:v1.9.3
docker pull goharbor/registry-photon:v2.7.1-patch-2819-2553-v1.9.3
docker pull goharbor/nginx-photon:v1.9.3
docker pull goharbor/harbor-jobservice:v1.9.3
docker pull goharbor/harbor-core:v1.9.3
docker pull goharbor/harbor-portal:v1.9.3
6.1、安装 harbor, 关闭数据卷挂载,并使用 NodePort 方式进行访问。
helm -n test install harbor goharbor/harbor \
--set persistence.enabled=false \
--set expose.type=nodePort \
--set expose.tls.enabled=false \
--set externalURL=http://192.168.0.11:30002

参数说明:

  • persistence.enabled=false 关闭存储,为了方便操作,真实使用时需要挂在存储
  • expose.type=nodePort 使用 NodePort 访问
  • expose.tls.enabled=false 关闭tls
  • externalURL=http://192.168.0.11:30002 设置登录 harbor 的外部链接
6.2、配置 harbor 使用 Ceph 持续存储(根据情况可选)
查看已有的 storageclasses
kubectl get sc
NAME       PROVISIONER    AGE
ceph-rbd   ceph.com/rbd   8h
下载 harbor
helm pull goharbor/harbor
解压
tar -zxvf harbor-1.2.3.tgz
vim harbor/values.yaml
expose:
    type: nodePort
    tls:
        enabled: false
externalURL: http://192.168.0.11:30002
persistence:
    persistentVolumeClaim:
        registry:
            # 所有 storageClass 都修改为以下内容
            storageClass: "ceph-rbd"
部署
helm install harbor harbor/
7、访问界面登录 http://192.168.0.11:30002

默认账号密码 admin/Harbor12345

8、添加仓库 chart_repo
9、创建用户 hl/XXX
10.1、添加 repo 到 helm
helm repo add hl http://192.168.0.11:30002/chartrepo/chart_repo
10.2、添加 repo 到 helm,及添加认证信息(根据情况可选)
helm repo add hl http://192.168.0.11:30002/chartrepo/chart_repo --username hl_user --password hl_password
helm repo add --ca-file /etc/docker/certs.d/local.com/ca.crt --username=admin --password=qwe local https://local.com/chartrepo/k8s
11、安装 helm-push 插件
helm plugin install https://github.com/chartmuseum/helm-push
12、push charts 到 harbor 里面
helm push grafana-0.0.2.tgz test --username hl --password xxx

六、其他

1、helm hub

helm hub

2、helm 官网

https://v3.helm.sh/docs/

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