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 (") 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:nginxtag:'1.19.8'

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

helmpackagewordpress/

helmrepoaddmyrepo

helminstallmywordpressmyrepo/wordpress

helmupgrademywordpressmyrepo/wordpress--setimage.tag=5.7.3-php8.0-fpm-alpine

helmrollbackmywordpress1

helmupgrademywordpressmyrepo/wordpress--version0.2.0

helmuninstallmywordpress

helmuninstallmywordpress--delete-data

#$helmstatusmynginxNAME:mynginxLASTDEPLOYED:FriOct2914:27:322021NAMESPACE:defaultSTATUS:deployedREVISION:1TESTSUITE: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.