Helm入门（一篇就够了）

apiVersion: chart API 版本 （必需）  #必须有name: chart名称 （必需）     # 必须有 version: 语义化2 版本（必需） # 必须有
kubeVersion: 兼容Kubernetes版本的语义化版本（可选）description: 一句话对这个项目的描述（可选）type: chart类型 （可选）keywords:  - 关于项目的一组关键字（可选）home: 项目home页面的URL （可选）sources:  - 项目源码的URL列表（可选）dependencies: # chart 必要条件列表 （可选）  - name: chart名称 (nginx)    version: chart版本 ("1.2.3")    repository: （可选）仓库URL ("https://example.com/charts") 或别名 ("@repo-name")    condition: （可选） 解析为布尔值的yaml路径，用于启用/禁用chart (e.g. subchart1.enabled )    tags: # （可选）      - 用于一次启用/禁用 一组chart的tag    import-values: # （可选）      - ImportValue 保存源值到导入父键的映射。每项可以是字符串或者一对子/父列表项    alias: （可选） chart中使用的别名。当你要多次添加相同的chart时会很有用
maintainers: # （可选） # 可能用到  - name: 维护者名字 （每个维护者都需要）    email: 维护者邮箱 （每个维护者可选）    url: 维护者URL （每个维护者可选）
icon: 用做icon的SVG或PNG图片URL （可选）appVersion: 包含的应用版本（可选）。不需要是语义化，建议使用引号deprecated: 不被推荐的chart （可选，布尔值）annotations:  example: 按名称输入的批注列表 （可选）.

name: nginx-helmapiVersion: v1version: 1.0.0

image:  repository: nginx  tag: '1.19.8'

apiVersion: apps/v1kind: Deploymentmetadata:  name: nginx-helm-{{ .Values.image.repository }}spec:  replicas: 1  selector:    matchLabels:      app: nginx-helm  template:    metadata:      labels:        app: nginx-helm    spec:      containers:      - name: nginx-helm        image: {{ .Values.image.repository }}:{{ .Values.image.tag }}        ports:        - containerPort: 80          protocol: TCP

helm package wordpress/

helm repo add myrepo https://example.com/chartshelm push wordpress-0.1.0.tgz myrepo

helm install mywordpress myrepo/wordpress

helm upgrade mywordpress myrepo/wordpress --set image.tag=5.7.3-php8.0-fpm-alpine

helm rollback mywordpress 1

helm upgrade mywordpress myrepo/wordpress --version 0.2.0

helm uninstall mywordpress

helm uninstall mywordpress --delete-data

# $ helm status mynginxNAME: mynginxLAST DEPLOYED: Fri Oct 29 14:27:32 2021NAMESPACE: defaultSTATUS: deployedREVISION: 1TEST SUITE: None

The Kubernetes package manager
Common actions for Helm:
- helm search:    search for charts- helm pull:      download a chart to your local directory to view- helm install:   upload the chart to Kubernetes- helm list:      list releases of charts
Environment variables:
| Name                               | Description                                                                                       ||------------------------------------|---------------------------------------------------------------------------------------------------|| $HELM_CACHE_HOME                   | set an alternative location for storing cached files.                                             || $HELM_CONFIG_HOME                  | set an alternative location for storing Helm configuration.                                       || $HELM_DATA_HOME                    | set an alternative location for storing Helm data.                                                || $HELM_DEBUG                        | indicate whether or not Helm is running in Debug mode                                             || $HELM_DRIVER                       | set the backend storage driver. Values are: configmap, secret, memory, sql.                       || $HELM_DRIVER_SQL_CONNECTION_STRING | set the connection string the SQL storage driver should use.                                      || $HELM_MAX_HISTORY                  | set the maximum number of helm release history.                                                   || $HELM_NAMESPACE                    | set the namespace used for the helm operations.                                                   || $HELM_NO_PLUGINS                   | disable plugins. Set HELM_NO_PLUGINS=1 to disable plugins.                                        || $HELM_PLUGINS                      | set the path to the plugins directory                                                             || $HELM_REGISTRY_CONFIG              | set the path to the registry config file.                                                         || $HELM_REPOSITORY_CACHE             | set the path to the repository cache directory                                                    || $HELM_REPOSITORY_CONFIG            | set the path to the repositories file.                                                            || $KUBECONFIG                        | set an alternative Kubernetes configuration file (default "~/.kube/config")                       || $HELM_KUBEAPISERVER                | set the Kubernetes API Server Endpoint for authentication                                         || $HELM_KUBECAFILE                   | set the Kubernetes certificate authority file.                                                    || $HELM_KUBEASGROUPS                 | set the Groups to use for impersonation using a comma-separated list.                             || $HELM_KUBEASUSER                   | set the Username to impersonate for the operation.                                                || $HELM_KUBECONTEXT                  | set the name of the kubeconfig context.                                                           || $HELM_KUBETOKEN                    | set the Bearer KubeToken used for authentication.                                                 || $HELM_KUBEINSECURE_SKIP_TLS_VERIFY | indicate if the Kubernetes API server's certificate validation should be skipped (insecure)       || $HELM_KUBETLS_SERVER_NAME          | set the server name used to validate the Kubernetes API server certificate                        || $HELM_BURST_LIMIT                  | set the default burst limit in the case the server contains many CRDs (default 100, -1 to disable)|
Helm stores cache, configuration, and data based on the following configuration order:
- If a HELM_*_HOME environment variable is set, it will be used- Otherwise, on systems supporting the XDG base directory specification, the XDG variables will be used- When no other location is set a default location will be used based on the operating system
By default, the default directories depend on the Operating System. The defaults are listed below:
| Operating System | Cache Path                | Configuration Path             | Data Path               ||------------------|---------------------------|--------------------------------|-------------------------|| Linux            | $HOME/.cache/helm         | $HOME/.config/helm             | $HOME/.local/share/helm || macOS            | $HOME/Library/Caches/helm | $HOME/Library/Preferences/helm | $HOME/Library/helm      || Windows          | %TEMP%\helm               | %APPDATA%\helm                 | %APPDATA%\helm          |
Usage:  helm [command]
Available Commands:  completion  generate autocompletion scripts for the specified shell  create      create a new chart with the given name  dependency  manage a chart's dependencies  env         helm client environment information  get         download extended information of a named release  help        Help about any command  history     fetch release history  install     install a chart  lint        examine a chart for possible issues  list        list releases  package     package a chart directory into a chart archive  plugin      install, list, or uninstall Helm plugins  pull        download a chart from a repository and (optionally) unpack it in local directory  push        push a chart to remote  registry    login to or logout from a registry  repo        add, list, remove, update, and index chart repositories  rollback    roll back a release to a previous revision  search      search for a keyword in charts  show        show information of a chart  status      display the status of the named release  template    locally render templates  test        run tests for a release  uninstall   uninstall a release  upgrade     upgrade a release  verify      verify that a chart at the given path has been signed and is valid  version     print the client version information
Flags:      --burst-limit int                 client-side default throttling limit (default 100)      --debug                           enable verbose output  -h, --help                            help for helm      --kube-apiserver string           the address and the port for the Kubernetes API server      --kube-as-group stringArray       group to impersonate for the operation, this flag can be repeated to specify multiple groups.      --kube-as-user string             username to impersonate for the operation      --kube-ca-file string             the certificate authority file for the Kubernetes API server connection      --kube-context string             name of the kubeconfig context to use      --kube-insecure-skip-tls-verify   if true, the Kubernetes API server's certificate will not be checked for validity. This will make your HTTPS connections insecure      --kube-tls-server-name string     server name to use for Kubernetes API server certificate validation. If it is not provided, the hostname used to contact the server is used      --kube-token string               bearer token used for authentication      --kubeconfig string               path to the kubeconfig file  -n, --namespace string                namespace scope for this request      --registry-config string          path to the registry config file (default "/Users/yanglinwei/Library/Preferences/helm/registry/config.json")      --repository-cache string         path to the file containing cached repository indexes (default "/Users/yanglinwei/Library/Caches/helm/repository")      --repository-config string        path to the file containing repository names and URLs (default "/Users/yanglinwei/Library/Preferences/helm/repositories.yaml")
Use "helm [command] --help" for more information about a command.