1. Helm 入门

1.1 部署安装

安装Helm

1.2 helm命令的使用

helm 命令行

1.3 添加 Chart 源

  1. # 添加常用chart源
  2. helm repo add stable https://charts.helm.sh/stable
  3. helm repo add bitnami https://charts.bitnami.com/bitnami
  4. helm repo add aliyuncs https://apphub.aliyuncs.com
  6. # 查看chart源
  7. [bcpay@localhost ~]$ helm repo list
  8. NAME        URL
  9. stable      https://charts.helm.sh/stable
  10. aliyuncs    https://apphub.aliyuncs.com
  11. bitnami     https://charts.bitnami.com/bitnami

1.4 搜索 Chart

  1. [bcpay@localhost ~]$ helm search repo mysql
  2. NAME                                  CHART VERSION    APP VERSION    DESCRIPTION
  3. aliyuncs/mysql                        6.8.0            8.0.19         Chart to create a Highly available MySQL cluster
  4. aliyuncs/mysqldump                    2.6.0            2.4.1          A Helm chart to help backup MySQL databases usi...
  5. aliyuncs/mysqlha                      1.0.0            5.7.13         MySQL cluster with a single master and zero or ...
  6. aliyuncs/prometheus-mysql-exporter    0.5.2            v0.11.0        A Helm chart for prometheus mysql exporter with...
  7. bitnami/mysql                         8.5.0            8.0.23         Chart to create a Highly available MySQL cluster
  8. stable/mysql                          1.6.9            5.7.30         DEPRECATED - Fast, reliable, scalable, and easy...
  9. stable/mysqldump                      2.6.2            2.4.1          DEPRECATED! - A Helm chart to help backup MySQL...
  10. stable/prometheus-mysql-exporter      0.7.1            v0.11.0        DEPRECATED A Helm chart for prometheus mysql ex...
  11. ...
  12. ...

1.5 下载 Chart

  1. # 下载chart到本地
  2. [bcpay@localhost ~]$ helm pull aliyuncs/mysql --untar
  4. # chart目录结构
  5. [bcpay@localhost ~]$ tree mysql
  6. mysql
  7. ├── Chart.yaml                                # Chart 的相关信息、包括名字、描述信息、版本等
  8. ├── ci
  9. │   └── values-production.yaml
  10. ├── files
  11. │   └── docker-entrypoint-initdb.d
  12. │       └── README.md
  13. ├── README.md
  14. ├── templates                                # 模板目录
  15. │   ├── _helpers.tpl                        # 用于存储模板片段
  16. │   ├── initialization-configmap.yaml
  17. │   ├── master-configmap.yaml
  18. │   ├── master-statefulset.yaml
  19. │   ├── master-svc.yaml
  20. │   ├── NOTES.txt                            # Chart 部署到集群后的一些信息，例如：如何使用、缺省值
  21. │   ├── secrets.yaml
  22. │   ├── servicemonitor.yaml
  23. │   ├── slave-configmap.yaml
  24. │   ├── slave-statefulset.yaml
  25. │   └── slave-svc.yaml
  26. ├── values-production.yaml                    # 参考values文件
  27. └── values.yaml                                # 重要，模板的值文件，这些值会在安装时应用到 GO 模板中生成部署文件
  29. 4 directories, 17 files

2. Helm进阶

2.1 自定义Chart

官方教程

2.1.1 创建Chart模板

[bcpay@localhost ~]$ helm create test01
Creating test01
[bcpay@localhost ~]$ tree test01/
test01/
├── charts
├── Chart.yaml
├── templates
│   ├── deployment.yaml
│   ├── _helpers.tpl
│   ├── hpa.yaml
│   ├── ingress.yaml
│   ├── NOTES.txt
│   ├── serviceaccount.yaml
│   ├── service.yaml
│   └── tests
│       └── test-connection.yaml
└── values.yaml

3 directories, 10 files

2.2 使用 Harbor 作为 Chart 仓库

2.2.1 安装插件

helm 默认不支持 helm push 命令，需要安装helm-push插件：

helm plugin install https://github.com/chartmuseum/helm-push

2.2.2 添加 Harbor 仓库

Harbor 默认安装不开启 Chart 仓库功能，执行 install.sh 脚本的时候需要加上 —with-chartmuseum

helm repo add harbor http://192.168.0.196/chartrepo/charts --username=admin --password=Harbor12345

2.2.3 推送本地Chart

helm push ./k8s-deploy-h5/ harbor