Helm 工程实践
文章目录
-
- 一、Helm
-
- 1.安装Helm
- 2.部署Nginx
-
- 2.1.创建
- 2.2.安装
- 2.3.打包并发布到本地仓库
- 2.4.升级
- 2.5.回滚
- 2.6.删除
- 二、微服务
-
- 1.微服务配置
- 2.部署微服务
- 3.打包并发布到本地仓库
- 4.升级
- 5.回滚
- 6.删除
- 7.使用包安装
- 8.配置values
-
- 8.1.修改配置信息
- 8.2.部署服务
- 8.3.升级
- 9.Chart Hooks
-
- 9.1.Hook配置
- 9.2.生产者加Hook注解
- Kubernetes
# Kubernetes
https://iothub.org.cn/docs/kubernetes/
https://iothub.org.cn/docs/kubernetes/advance/helm-operate/
一、Helm
1.安装Helm
安装过程
wget https://get.helm.sh/helm-v3.7.0-linux-amd64.tar.gz
tar zxvf helm-v3.7.0-linux-amd64.tar.gz
cp linux-amd64/helm /usr/local/bin/
helm help
# 下载安装文件
[root@k8s-master install]# wget https://get.helm.sh/helm-v3.7.0-linux-amd64.tar.gz
# 解压
[root@k8s-master install]# tar zxvf helm-v3.7.0-linux-amd64.tar.gz
linux-amd64/
linux-amd64/helm
linux-amd64/LICENSE
linux-amd64/README.md
[root@k8s-master install]# tree
.
├── helm-v3.7.0-linux-amd64.tar.gz
└── linux-amd64
├── helm
├── LICENSE
└── README.md
[root@k8s-master install]# cd linux-amd64/
[root@k8s-master linux-amd64]# ls
helm LICENSE README.md
# 复制
[root@k8s-master linux-arm64]# cp helm /usr/local/bin/
# 命令补全
# 添加环境变量
[root@k8s-master linux-amd64]# echo "source <(helm completion bash)" >> ~/.bashrc
[root@k8s-master linux-amd64]# source ~/.bashrc
# 查看版本
[root@k8s-master linux-amd64]# helm version
version.BuildInfo{Version:"v3.7.0", GitCommit:"eeac83883cb4014fe60267ec6373570374ce770b", GitTreeState:"clean", GoVersion:"go1.16.8"}
[root@k8s-master linux-amd64]# helm
[root@k8s-master linux-amd64]# helm help
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 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
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:
--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-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 "/root/.config/helm/registry.json")
--repository-cache string path to the file containing cached repository indexes (default "/root/.cache/helm/repository")
--repository-config string path to the file containing repository names and URLs (default "/root/.config/helm/repositories.yaml")
Use "helm [command] --help" for more information about a command.
2.部署Nginx
2.1.创建
# 创建mynginx
[root@k8s-master test]# helm create mynginx -n dev
Creating mynginx
[root@k8s-master test]# ll
drwxr-xr-x 4 root root 93 Oct 11 11:25 mynginx
[root@k8s-master test]# tree mynginx
mynginx
├── 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
--------------------------------------------
# 删除多余文件
# templates只保留deployment.yaml、service.yaml、NOTES.txt
[root@k8s-master test]# tree mynginx
mynginx
├── charts
├── Chart.yaml
├── templates
│ ├── deployment.yaml
│ ├── NOTES.txt
│ └── service.yaml
└── values.yaml
#模板文件
# Chart.yaml
[root@k8s-master mynginx]# vim Chart.yaml
apiVersion: v2
name: mynginx
description: A Helm chart for Kubernetes
type: application
version: 0.1.0
appVersion: "1.15.0"
# values.yaml
[root@k8s-master mynginx]# vim values.yaml
replicas: 3
image: nginx
tag: 1.15
serviceport: 80
targetport: 80
label: nginx
# NOTES.txt
[root@k8s-master templates]# vim NOTES.txt
hello
# deployment.yaml
[root@k8s-master templates]# vim deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
labels:
app: {{ .Values.label }}
name: {{ .Release.Name }}
spec:
replicas: {{ .Values.replicas }}
selector:
matchLabels:
app: {{ .Values.label }}
template:
metadata:
labels:
app: {{ .Values.label }}
spec:
containers:
- image: {{ .Values.image }}:{{ .Values.tag }}
name: web
# service.yaml
[root@k8s-master templates]# vim service.yaml
apiVersion: v1
kind: Service
metadata:
labels:
app: {{ .Values.label }}
name: {{ .Release.Name }}
spec:
ports:
- port: {{ .Values.serviceport }}
protocol: TCP
targetPort: {{ .Values.targetport }}
selector:
app: {{ .Values.label }}
type: NodePort
2.2.安装
# 查看实际的模板被渲染过后的资源文件
# helm get manifest web
# helm install web nginx/
# 生成的最终的资源清单文件打印出来，而不会真正的去部署一个release实例
# helm install --name mychart --dry-run --debug -f global.yaml ./mychart/
# helm install --name mychart --dry-run --debug --set course="k8s" ./mychart/
# 调试
# Helm也提供了--dry-run --debug调试参数，帮助你验证模板正确性。在执行helm install时候带上这两个参数就可以把对应的values值和渲染的资源清单打印出来，而不会真正的去部署一个release。
[root@k8s-master test]# helm install web mynginx/ --dry-run --debug -n dev
install.go:178: [debug] Original chart version: ""
install.go:199: [debug] CHART PATH: /k8s/helm/test/mynginx
NAME: web
LAST DEPLOYED: Mon Oct 11 13:13:55 2021
NAMESPACE: default
STATUS: pending-install
REVISION: 1
TEST SUITE: None
USER-SUPPLIED VALUES:
{}
COMPUTED VALUES:
image: nginx
label: nginx
replicas: 3
serviceport: 80
tag: 1.15
targetport: 80
HOOKS:
MANIFEST:
---
# Source: mynginx/templates/service.yaml
apiVersion: v1
kind: Service
metadata:
labels:
app: nginx
name: web
spec:
ports:
- port: 80
protocol: TCP
targetPort: 80
selector:
app: nginx
type: NodePort
---
# Source: mynginx/templates/deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
labels:
app: nginx
name: web
spec:
replicas: 3
selector:
matchLabels:
app: nginx
template:
metadata:
labels:
app: nginx
spec:
containers:
- image: nginx:1.15
name: web
NOTES:
hello
[root@k8s-master test]# helm list -n dev
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
----------------------------------------------------------------------
# 安装
[root@k8s-master test]# helm install web mynginx/ -n dev
NAME: web
LAST DEPLOYED: Mon Oct 11 12:51:34 2021
NAMESPACE: dev
STATUS: deployed
REVISION: 1
TEST SUITE: None
NOTES:
hello
[root@k8s-master test]# helm list -n dev
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
web dev 1 2021-10-11 13:16:37.74400198 +0800 CST deployed mynginx-0.1.0 1.15.0
[root@k8s-master test]# helm status web -n dev
NAME: web
LAST DEPLOYED: Mon Oct 11 13:16:37 2021
NAMESPACE: dev
STATUS: deployed
REVISION: 1
TEST SUITE: None
NOTES:
hello
# 检索已经发布的 release 的资源文件
[root@k8s-master test]# helm get manifest web -n dev
---
# Source: mynginx/templates/service.yaml
apiVersion: v1
kind: Service
metadata:
labels:
app: nginx
name: web
spec:
ports:
- port: 80
protocol: TCP
targetPort: 80
selector:
app: nginx
type: NodePort
---
# Source: mynginx/templates/deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
labels:
app: nginx
name: web
spec:
replicas: 3
selector:
matchLabels:
app: nginx
template:
metadata:
labels:
app: nginx
spec:
containers:
- image: nginx:1.15
name: web
[root@k8s-master test]# helm history web -n dev
REVISION UPDATED STATUS CHART APP VERSION DESCRIPTION
1 Mon Oct 11 13:16:37 2021 deployed mynginx-0.1.0 1.15.0 Install complete
[root@k8s-master test]# kubectl get all -n dev
NAME READY STATUS RESTARTS AGE
pod/web-84b7cd6c7c-dhndc 1/1 Running 0 62s
pod/web-84b7cd6c7c-mnk4z 1/1 Running 0 62s
pod/web-84b7cd6c7c-pjbmg 1/1 Running 0 62s
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/web NodePort 10.103.41.189 <none> 80:31251/TCP 62s
NAME READY UP-TO-DATE AVAILABLE AGE
deployment.apps/web 3/3 3 3 62s
NAME DESIRED CURRENT READY AGE
replicaset.apps/web-84b7cd6c7c 3 3 3 62s
# 访问
http://172.51.216.81:31251/
curl 10.103.41.189
# 打包
# 修改Chart.yaml中的helm chart配置信息，然后使用下列命令将chart打包成一个压缩文件。
# 打包出mynginx-0.1.0.tgz文件。
[root@k8s-master test]# helm package mynginx
Successfully packaged chart and saved it to: /k8s/helm/test/mynginx-0.1.0.tgz
[root@k8s-master test]# ll
drwxr-xr-x 4 root root 93 Oct 11 13:12 mynginx
-rw-r--r-- 1 root root 869 Oct 11 13:43 mynginx-0.1.0.tgz
2.3.打包并发布到本地仓库
[root@k8s-master test]# helm list -n dev
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
web dev 1 2021-10-11 13:16:37.74400198 +0800 CST deployed mynginx-0.1.0 1.15.0
#从上面 helm list 输出的结果中我们可以看到有一个 Revision（更改历史）字段，该字段用于表示某一个 Release 被更新的次数，我们可以用该特性对已部署的 Release 进行回滚。
#修改 Chart.yaml 文件
#将版本号从 0.1.0 修改为 0.2.0, 然后使用 helm package 命令打包并发布到本地仓库。
# Chart.yaml
[root@k8s-master mynginx]# vim Chart.yaml
apiVersion: v2
name: mynginx
description: A Helm chart for Kubernetes
type: application
version: 0.2.0
appVersion: "1.15.0"
[root@k8s-master test]# helm package mynginx
Successfully packaged chart and saved it to: /k8s/helm/test/mynginx-0.2.0.tgz
[root@k8s-master test]# ll
drwxr-xr-x 4 root root 93 Oct 11 13:51 mynginx
-rw-r--r-- 1 root root 869 Oct 11 13:43 mynginx-0.1.0.tgz
-rw-r--r-- 1 root root 870 Oct 11 13:53 mynginx-0.2.0.tgz
# 查询本地仓库中的 Chart 信息
# 未测试通过
root@k8s-master test]# helm search mynginx -l
2.4.升级
helm upgrade 命令将已部署的应用升级到新版本
发布新版本的chart时，或者当您要更改发布的配置时，可以使用该helm upgrade 命令。
# helm upgrade --set imageTag=1.17 web mynginx
# helm upgrade -f values.yaml web mynginx
values
Values对象是为Chart模板提供值，这个对象的值有4个来源：
chart 包中的 values.yaml 文件
父 chart 包的 values.yaml 文件
通过 helm install 或者 helm upgrade 的 -f或者 --values参数传入的自定义的 yaml 文件
通过 --set 参数传入的值
[root@k8s-master test]# helm upgrade web --set replicas=5 mynginx -n dev
Release "web" has been upgraded. Happy Helming!
NAME: web
LAST DEPLOYED: Mon Oct 11 14:12:25 2021
NAMESPACE: dev
STATUS: deployed
REVISION: 2
TEST SUITE: None
NOTES:
hello
[root@k8s-master test]# kubectl get pod -n dev
NAME READY STATUS RESTARTS AGE
web-84b7cd6c7c-dhndc 1/1 Running 0 56m
web-84b7cd6c7c-gzzqh 1/1 Running 0 30s
web-84b7cd6c7c-mnk4z 1/1 Running 0 56m
web-84b7cd6c7c-pjbmg 1/1 Running 0 56m
web-84b7cd6c7c-rlzpd 0/1 ContainerCreating 0 30s
[root@k8s-master test]# helm list -n dev
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
web dev 2 2021-10-11 14:12:25.81925385 +0800 CST deployed mynginx-0.2.0 1.15.0
[root@k8s-master test]# helm history web -n dev
REVISION UPDATED STATUS CHART APP VERSION DESCRIPTION
1 Mon Oct 11 13:16:37 2021 superseded mynginx-0.1.0 1.15.0 Install complete
2 Mon Oct 11 14:12:25 2021 deployed mynginx-0.2.0 1.15.0 Upgrade complete
[root@k8s-master test]# helm get manifest web -n dev
---
# Source: mynginx/templates/service.yaml
apiVersion: v1
kind: Service
metadata:
labels:
app: nginx
name: web
spec:
ports:
- port: 80
protocol: TCP
targetPort: 80
selector:
app: nginx
type: NodePort
---
# Source: mynginx/templates/deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
labels:
app: nginx
name: web
spec:
replicas: 5
selector:
matchLabels:
app: nginx
template:
metadata:
labels:
app: nginx
spec:
containers:
- image: nginx:1.15
name: web
通过修改values.yaml升级
# 升级前
[root@k8s-master mynginx]# helm list -n dev
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
web dev 2 2021-10-11 14:12:25.81925385 +0800 CST deployed mynginx-0.2.0 1.15.0
[root@k8s-master mynginx]# helm status web -n dev
NAME: web
LAST DEPLOYED: Mon Oct 11 14:12:25 2021
NAMESPACE: dev
STATUS: deployed
REVISION: 2
TEST SUITE: None
NOTES:
hello
[root@k8s-master mynginx]# helm history web -n dev
REVISION UPDATED STATUS CHART APP VERSION DESCRIPTION
1 Mon Oct 11 13:16:37 2021 superseded mynginx-0.1.0 1.15.0 Install complete
2 Mon Oct 11 14:12:25 2021 deployed mynginx-0.2.0 1.15.0 Upgrade complete
[root@k8s-master test]# kubectl get pod -n dev
NAME READY STATUS RESTARTS AGE
web-84b7cd6c7c-dhndc 1/1 Running 0 68m
web-84b7cd6c7c-gzzqh 1/1 Running 0 12m
web-84b7cd6c7c-mnk4z 1/1 Running 0 68m
web-84b7cd6c7c-pjbmg 1/1 Running 0 68m
web-84b7cd6c7c-rlzpd 1/1 Running 0 12m
# 修改文件
# 修改版本version: 0.3.0 tag: 1.16
[root@k8s-master mynginx]# vim Chart.yaml
apiVersion: v2
name: mynginx
description: A Helm chart for Kubernetes
type: application
version: 0.3.0
appVersion: "1.16.0"
[root@k8s-master mynginx]# vim values.yaml
replicas: 3
image: nginx
tag: 1.16
serviceport: 80
targetport: 80
label: nginx
# 升级
[root@k8s-master test]# helm upgrade web mynginx/ -n dev
Release "web" has been upgraded. Happy Helming!
NAME: web
LAST DEPLOYED: Mon Oct 11 14:25:49 2021
NAMESPACE: dev
STATUS: deployed
REVISION: 3
TEST SUITE: None
NOTES:
hello
[root@k8s-master test]# helm list -n dev
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
web dev 3 2021-10-11 14:25:49.657012895 +0800 CST deployed mynginx-0.3.0 1.16.0
[root@k8s-master test]# helm history web -n dev
REVISION UPDATED STATUS CHART APP VERSION DESCRIPTION
1 Mon Oct 11 13:16:37 2021 superseded mynginx-0.1.0 1.15.0 Install complete
2 Mon Oct 11 14:12:25 2021 superseded mynginx-0.2.0 1.15.0 Upgrade complete
3 Mon Oct 11 14:25:49 2021 deployed mynginx-0.3.0 1.16.0 Upgrade complete
[root@k8s-master test]# kubectl get pod -n dev
NAME READY STATUS RESTARTS AGE
web-6fbb9b87dd-8wznf 1/1 Running 0 81s
web-6fbb9b87dd-k58gv 1/1 Running 0 30s
web-6fbb9b87dd-mgslf 1/1 Running 0 29s
web-6fbb9b87dd-spxvh 1/1 Running 0 81s
web-6fbb9b87dd-tgf84 1/1 Running 0 81s
[root@k8s-master test]# helm get manifest web -n dev
---
# Source: mynginx/templates/service.yaml
apiVersion: v1
kind: Service
metadata:
labels:
app: nginx
name: web
spec:
ports:
- port: 80
protocol: TCP
targetPort: 80
selector:
app: nginx
type: NodePort
---
# Source: mynginx/templates/deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
labels:
app: nginx
name: web
spec:
replicas: 5
selector:
matchLabels:
app: nginx
template:
metadata:
labels:
app: nginx
spec:
containers:
- image: nginx:1.16
name: web
2.5.回滚
# 如果在发布后没有达到预期的效果，则可以使用helm rollback回滚到之前的版本。
# 例如将应用回滚到第一个版本：
helm rollback web 1
# 回滚前
[root@k8s-master test]# helm list -n dev
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
web dev 3 2021-10-11 14:25:49.657012895 +0800 CST deployed mynginx-0.3.0 1.16.0
[root@k8s-master test]# helm status web -n dev
NAME: web
LAST DEPLOYED: Mon Oct 11 14:25:49 2021
NAMESPACE: dev
STATUS: deployed
REVISION: 3
TEST SUITE: None
NOTES:
hello
[root@k8s-master test]# helm history web -n dev
REVISION UPDATED STATUS CHART APP VERSION DESCRIPTION
1 Mon Oct 11 13:16:37 2021 superseded mynginx-0.1.0 1.15.0 Install complete
2 Mon Oct 11 14:12:25 2021 superseded mynginx-0.2.0 1.15.0 Upgrade complete
3 Mon Oct 11 14:25:49 2021 deployed mynginx-0.3.0 1.16.0 Upgrade complete
[root@k8s-master test]# kubectl get pod -n dev
NAME READY STATUS RESTARTS AGE
web-6fbb9b87dd-8wznf 1/1 Running 0 8m
web-6fbb9b87dd-k58gv 1/1 Running 0 7m9s
web-6fbb9b87dd-mgslf 1/1 Running 0 7m8s
web-6fbb9b87dd-spxvh 1/1 Running 0 8m
web-6fbb9b87dd-tgf84 1/1 Running 0 8m
# 回滚到版本1
[root@k8s-master test]# helm rollback web 1 -n dev
Rollback was a success! Happy Helming!
# 回滚后的状态
[root@k8s-master test]# helm list -n dev
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
web dev 4 2021-10-11 14:35:43.553492797 +0800 CST deployed mynginx-0.1.0 1.15.0
[root@k8s-master test]# helm status web -n dev
NAME: web
LAST DEPLOYED: Mon Oct 11 14:35:43 2021
NAMESPACE: dev
STATUS: deployed
REVISION: 4
TEST SUITE: None
NOTES:
hello
[root@k8s-master test]# helm history web -n dev
REVISION UPDATED STATUS CHART APP VERSION DESCRIPTION
1 Mon Oct 11 13:16:37 2021 superseded mynginx-0.1.0 1.15.0 Install complete
2 Mon Oct 11 14:12:25 2021 superseded mynginx-0.2.0 1.15.0 Upgrade complete
3 Mon Oct 11 14:25:49 2021 superseded mynginx-0.3.0 1.16.0 Upgrade complete
4 Mon Oct 11 14:35:43 2021 deployed mynginx-0.1.0 1.15.0 Rollback to 1
[root@k8s-master test]# kubectl get pod -n dev
NAME READY STATUS RESTARTS AGE
web-84b7cd6c7c-5hfzp 1/1 Running 0 95s
web-84b7cd6c7c-9snhp 1/1 Running 0 91s
web-84b7cd6c7c-z2fkg 1/1 Running 0 93s
2.6.删除
卸载发行版，请使用以下helm uninstall命令：
# helm uninstall web -n dev
# helm delete web -n dev
[root@k8s-master test]# helm uninstall web -n dev
release "web" uninstalled
[root@k8s-master test]# helm list -n dev
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
使用包安装
# 使用 mynginx-0.2.0.tgz 安装
[root@k8s-master test]# ll
drwxr-xr-x 4 root root 93 Oct 11 14:28 mynginx
-rw-r--r-- 1 root root 869 Oct 11 13:43 mynginx-0.1.0.tgz
-rw-r--r-- 1 root root 870 Oct 11 13:53 mynginx-0.2.0.tgz
[root@k8s-master test]# helm install web mynginx-0.2.0.tgz -n dev
NAME: web
LAST DEPLOYED: Mon Oct 11 15:23:23 2021
NAMESPACE: dev
STATUS: deployed
REVISION: 1
TEST SUITE: None
NOTES:
hello
[root@k8s-master test]# helm list -n dev
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
web dev 1 2021-10-11 15:23:23.307351412 +0800 CST deployed mynginx-0.2.0 1.15.0
[root@k8s-master test]# helm history web -n dev
REVISION UPDATED STATUS CHART APP VERSION DESCRIPTION
1 Mon Oct 11 15:23:23 2021 deployed mynginx-0.2.0 1.15.0 Install complete
[root@k8s-master test]# helm get manifest web -n dev
---
# Source: mynginx/templates/service.yaml
apiVersion: v1
kind: Service
metadata:
labels:
app: nginx
name: web
spec:
ports:
- port: 80
protocol: TCP
targetPort: 80
selector:
app: nginx
type: NodePort
---
# Source: mynginx/templates/deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
labels:
app: nginx
name: web
spec:
replicas: 3
selector:
matchLabels:
app: nginx
template:
metadata:
labels:
app: nginx
spec:
containers:
- image: nginx:1.15
name: web
[root@k8s-master test]# kubectl get all -n dev
NAME READY STATUS RESTARTS AGE
pod/web-84b7cd6c7c-jfz8l 1/1 Running 0 4m4s
pod/web-84b7cd6c7c-tjtgx 1/1 Running 0 4m4s
pod/web-84b7cd6c7c-xr5hs 1/1 Running 0 4m4s
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/web NodePort 10.110.118.3 <none> 80:32692/TCP 4m4s
NAME READY UP-TO-DATE AVAILABLE AGE
deployment.apps/web 3/3 3 3 4m4s
NAME DESIRED CURRENT READY AGE
replicaset.apps/web-84b7cd6c7c 3 3 3 4m4s
# 删除
[root@k8s-master test]# helm delete web -n dev
release "web" uninstalled
[root@k8s-master test]# helm list -n dev
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
二、微服务
1.微服务配置
1.注册中心
msa-eureka.yaml
apiVersion: v1
kind: Service
metadata:
namespace: dev
name: msa-eureka
labels:
app: msa-eureka
spec:
type: NodePort
ports:
- port: 10001
name: msa-eureka
targetPort: 10001
nodePort: 30001 #对外暴露30001端口
selector:
app: msa-eureka
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
namespace: dev
name: msa-eureka
spec:
serviceName: msa-eureka
replicas: 3
selector:
matchLabels:
app: msa-eureka
template:
metadata:
labels:
app: msa-eureka
spec:
imagePullSecrets:
- name: harborsecret #对应创建私有镜像密钥Secret
containers:
- name: msa-eureka
image: 172.51.216.85:8888/springcloud/msa-eureka:2.0.0
ports:
- containerPort: 10001
env:
- name: MY_POD_NAME
valueFrom:
fieldRef:
fieldPath: metadata.name
- name: EUREKA_SERVER
value: "http://msa-eureka-0.msa-eureka.dev:10001/eureka/,http://msa-eureka-1.msa-eureka.dev:10001/eureka/,http://msa-eureka-2.msa-eureka.dev:10001/eureka/"
- name: EUREKA_INSTANCE_HOSTNAME
value: ${MY_POD_NAME}.msa-eureka.dev
- name: ACTIVE
value: "-Dspring.profiles.active=k8s"
podManagementPolicy: "Parallel"
2.网关
msa-gateway.yaml
apiVersion: v1
kind: Service
metadata:
namespace: dev
name: msa-gateway
labels:
app: msa-gateway
spec:
type: NodePort
ports:
- port: 8888
targetPort: 8888
nodePort: 30008 #对外暴露30008端口
selector:
app: msa-gateway
---
apiVersion: apps/v1
kind: Deployment
metadata:
namespace: dev
name: msa-gateway
spec:
replicas: 3
selector:
matchLabels:
app: msa-gateway
template:
metadata:
labels:
app: msa-gateway
spec:
imagePullSecrets:
- name: harborsecret #对应创建私有镜像密钥Secret
containers:
- name: msa-gateway
image: 172.51.216.85:8888/springcloud/msa-gateway:2.0.0
imagePullPolicy: Always #如果省略imagePullPolicy,策略为IfNotPresent
ports:
- containerPort: 8888
env:
- name: EUREKA_SERVER
value: "http://msa-eureka-0.msa-eureka.dev:10001/eureka/,http://msa-eureka-1.msa-eureka.dev:10001/eureka/,http://msa-eureka-2.msa-eureka.dev:10001/eureka/"
- name: ACTIVE
value: "-Dspring.profiles.active=k8s"
3.生产者
msa-deploy-producer.yaml
apiVersion: v1
kind: Service
metadata:
namespace: dev
name: msa-deploy-producer
labels:
app: msa-deploy-producer
spec:
type: ClusterIP
ports:
- port: 8911
targetPort: 8911
selector:
app: msa-deploy-producer
---
apiVersion: apps/v1
kind: Deployment
metadata:
namespace: dev
name: msa-deploy-producer
spec:
replicas: 3
selector:
matchLabels:
app: msa-deploy-producer
template:
metadata:
labels:
app: msa-deploy-producer
spec:
imagePullSecrets:
- name: harborsecret #对应创建私有镜像密钥Secret
containers:
- name: msa-deploy-producer
image: 172.51.216.85:8888/springcloud/msa-deploy-producer:2.0.0
imagePullPolicy: Always #如果省略imagePullPolicy,策略为IfNotPresent
ports:
- containerPort: 8911
env:
- name: EUREKA_SERVER
value: "http://msa-eureka-0.msa-eureka.dev:10001/eureka/,http://msa-eureka-1.msa-eureka.dev:10001/eureka/,http://msa-eureka-2.msa-eureka.dev:10001/eureka/"
- name: ACTIVE
value: "-Dspring.profiles.active=k8s"
- name: DASHBOARD
value: "sentinel-server.dev.svc.cluster.local:8858"
4.消费者
msa-deploy-consumer.yaml
apiVersion: v1
kind: Service
metadata:
namespace: dev
name: msa-deploy-consumer
labels:
app: msa-deploy-consumer
spec:
type: ClusterIP
ports:
- port: 8912
targetPort: 8912
selector:
app: msa-deploy-consumer
---
apiVersion: apps/v1
kind: Deployment
metadata:
namespace: dev
name: msa-deploy-consumer
spec:
replicas: 3
selector:
matchLabels:
app: msa-deploy-consumer
template:
metadata:
labels:
app: msa-deploy-consumer
spec:
imagePullSecrets:
- name: harborsecret #对应创建私有镜像密钥Secret
containers:
- name: msa-deploy-consumer
image: 172.51.216.85:8888/springcloud/msa-deploy-consumer:2.0.0
imagePullPolicy: Always #如果省略imagePullPolicy,策略为IfNotPresent
ports:
- containerPort: 8912
env:
- name: EUREKA_SERVER
value: "http://msa-eureka-0.msa-eureka.dev:10001/eureka/,http://msa-eureka-1.msa-eureka.dev:10001/eureka/,http://msa-eureka-2.msa-eureka.dev:10001/eureka/"
- name: ACTIVE
value: "-Dspring.profiles.active=k8s"
- name: DASHBOARD
value: "sentinel-server.dev.svc.cluster.local:8858"
2.部署微服务
创建
# 创建 msa
[root@k8s-master test]# helm create cloud -n dev
Creating cloud
[root@k8s-master test]# ll
drwxr-xr-x 4 root root 93 Nov 11 13:50 cloud
[root@k8s-master test]# tree
.
└── cloud
├── charts
├── Chart.yaml
├── templates
│ ├── deployment.yaml
│ ├── _helpers.tpl
│ ├── hpa.yaml
│ ├── ingress.yaml
│ ├── NOTES.txt
│ ├── serviceaccount.yaml
│ ├── service.yaml
│ └── tests
│ └── test-connection.yaml
└── values.yaml
4 directories, 10 files
--------------------------------------------
# templates删除所有文件
# templates创建文件：NOTES.txt、msa-eureka.yaml、msa-gateway.yaml、msa-deploy-producer.yaml、msa-deploy-consumer.yaml
[root@k8s-master test]# tree
.
└── cloud
├── charts
├── Chart.yaml
├── templates
│ ├── msa-deploy-consumer.yaml
│ ├── msa-deploy-producer.yaml
│ ├── msa-eureka.yaml
│ ├── msa-gateway.yaml
│ └── NOTES.txt
└── values.yaml
3 directories, 7 files
#模板文件
# Chart.yaml
[root@k8s-master cloud]# vim Chart.yaml
apiVersion: v2
name: cloud
description: A Helm chart for Kubernetes
type: application
version: 0.1.0
appVersion: "1.0.0"
# values.yaml 暂时不用
[root@k8s-master cloud]# vim values.yaml
# NOTES.txt
[root@k8s-master cloud]# vim NOTES.txt
Spring Cloud!!!
安装
# 查看实际的模板被渲染过后的资源文件
# helm get manifest web
# helm install web nginx/
# 生成的最终的资源清单文件打印出来，而不会真正的去部署一个release实例
# helm install --name mychart --dry-run --debug -f global.yaml ./mychart/
# helm install --name mychart --dry-run --debug --set course="k8s" ./mychart/
# 调试
# Helm也提供了--dry-run --debug调试参数，帮助你验证模板正确性。在执行helm install时候带上这两个参数就可以把对应的values值和渲染的资源清单打印出来，而不会真正的去部署一个release。
[root@k8s-master test]# helm install msa cloud --dry-run --debug -n dev
install.go:173: [debug] Original chart version: ""
install.go:190: [debug] CHART PATH: /k8s/springcloud-helm/test/cloud
NAME: msa
LAST DEPLOYED: Thu Nov 11 14:22:13 2021
NAMESPACE: dev
STATUS: pending-install
REVISION: 1
TEST SUITE: None
USER-SUPPLIED VALUES:
{}
COMPUTED VALUES:
affinity: {}
autoscaling:
enabled: false
maxReplicas: 100
minReplicas: 1
targetCPUUtilizationPercentage: 80
fullnameOverride: ""
image:
pullPolicy: IfNotPresent
repository: nginx
tag: ""
imagePullSecrets: []
ingress:
annotations: {}
className: ""
enabled: false
hosts:
- host: chart-example.local
paths:
- path: /
pathType: ImplementationSpecific
tls: []
nameOverride: ""
nodeSelector: {}
podAnnotations: {}
podSecurityContext: {}
replicaCount: 1
resources: {}
securityContext: {}
service:
port: 80
type: ClusterIP
serviceAccount:
annotations: {}
create: true
name: ""
tolerations: []
HOOKS:
MANIFEST:
---
# Source: cloud/templates/msa-deploy-consumer.yaml
apiVersion: v1
kind: Service
metadata:
namespace: dev
name: msa-deploy-consumer
labels:
app: msa-deploy-consumer
spec:
type: ClusterIP
ports:
- port: 8912
targetPort: 8912
selector:
app: msa-deploy-consumer
---
# Source: cloud/templates/msa-deploy-producer.yaml
apiVersion: v1
kind: Service
metadata:
namespace: dev
name: msa-deploy-producer
labels:
app: msa-deploy-producer
spec:
type: ClusterIP
ports:
- port: 8911
targetPort: 8911
selector:
app: msa-deploy-producer
---
# Source: cloud/templates/msa-eureka.yaml
apiVersion: v1
kind: Service
metadata:
namespace: dev
name: msa-eureka
labels:
app: msa-eureka
spec:
type: NodePort
ports:
- port: 10001
name: msa-eureka
targetPort: 10001
nodePort: 30001 #对外暴露30001端口
selector:
app: msa-eureka
---
# Source: cloud/templates/msa-gateway.yaml
apiVersion: v1
kind: Service
metadata:
namespace: dev
name: msa-gateway
labels:
app: msa-gateway
spec:
type: NodePort
ports:
- port: 8888
targetPort: 8888
nodePort: 30008 #对外暴露30008端口
selector:
app: msa-gateway
---
# Source: cloud/templates/msa-deploy-consumer.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
namespace: dev
name: msa-deploy-consumer
spec:
replicas: 3
selector:
matchLabels:
app: msa-deploy-consumer
template:
metadata:
labels:
app: msa-deploy-consumer
spec:
imagePullSecrets:
- name: harborsecret #对应创建私有镜像密钥Secret
containers:
- name: msa-deploy-consumer
image: 172.51.216.85:8888/springcloud/msa-deploy-consumer:2.0.0
imagePullPolicy: Always #如果省略imagePullPolicy,策略为IfNotPresent
ports:
- containerPort: 8912
env:
- name: EUREKA_SERVER
value: "http://msa-eureka-0.msa-eureka.dev:10001/eureka/,http://msa-eureka-1.msa-eureka.dev:10001/eureka/,http://msa-eureka-2.msa-eureka.dev:10001/eureka/"
- name: ACTIVE
value: "-Dspring.profiles.active=k8s"
- name: DASHBOARD
value: "sentinel-server.dev.svc.cluster.local:8858"
---
# Source: cloud/templates/msa-deploy-producer.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
namespace: dev
name: msa-deploy-producer
spec:
replicas: 3
selector:
matchLabels:
app: msa-deploy-producer
template:
metadata:
labels:
app: msa-deploy-producer
spec:
imagePullSecrets:
- name: harborsecret #对应创建私有镜像密钥Secret
containers:
- name: msa-deploy-producer
image: 172.51.216.85:8888/springcloud/msa-deploy-producer:2.0.0
imagePullPolicy: Always #如果省略imagePullPolicy,策略为IfNotPresent
ports:
- containerPort: 8911
env:
- name: EUREKA_SERVER
value: "http://msa-eureka-0.msa-eureka.dev:10001/eureka/,http://msa-eureka-1.msa-eureka.dev:10001/eureka/,http://msa-eureka-2.msa-eureka.dev:10001/eureka/"
- name: ACTIVE
value: "-Dspring.profiles.active=k8s"
- name: DASHBOARD
value: "sentinel-server.dev.svc.cluster.local:8858"
---
# Source: cloud/templates/msa-gateway.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
namespace: dev
name: msa-gateway
spec:
replicas: 3
selector:
matchLabels:
app: msa-gateway
template:
metadata:
labels:
app: msa-gateway
spec:
imagePullSecrets:
- name: harborsecret #对应创建私有镜像密钥Secret
containers:
- name: msa-gateway
image: 172.51.216.85:8888/springcloud/msa-gateway:2.0.0
imagePullPolicy: Always #如果省略imagePullPolicy,策略为IfNotPresent
ports:
- containerPort: 8888
env:
- name: EUREKA_SERVER
value: "http://msa-eureka-0.msa-eureka.dev:10001/eureka/,http://msa-eureka-1.msa-eureka.dev:10001/eureka/,http://msa-eureka-2.msa-eureka.dev:10001/eureka/"
- name: ACTIVE
value: "-Dspring.profiles.active=k8s"
---
# Source: cloud/templates/msa-eureka.yaml
apiVersion: apps/v1
kind: StatefulSet
metadata:
namespace: dev
name: msa-eureka
spec:
serviceName: msa-eureka
replicas: 3
selector:
matchLabels:
app: msa-eureka
template:
metadata:
labels:
app: msa-eureka
spec:
imagePullSecrets:
- name: harborsecret #对应创建私有镜像密钥Secret
containers:
- name: msa-eureka
image: 172.51.216.85:8888/springcloud/msa-eureka:2.0.0
ports:
- containerPort: 10001
env:
- name: MY_POD_NAME
valueFrom:
fieldRef:
fieldPath: metadata.name
- name: EUREKA_SERVER
value: "http://msa-eureka-0.msa-eureka.dev:10001/eureka/,http://msa-eureka-1.msa-eureka.dev:10001/eureka/,http://msa-eureka-2.msa-eureka.dev:10001/eureka/"
- name: EUREKA_INSTANCE_HOSTNAME
value: ${MY_POD_NAME}.msa-eureka.dev
- name: ACTIVE
value: "-Dspring.profiles.active=k8s"
podManagementPolicy: "Parallel"
NOTES:
Spring Cloud!!!
[root@k8s-master test]# helm list -n dev
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
----------------------------------------------------------------------
# 安装
[root@k8s-master test]# helm install msa cloud -n dev
NAME: msa
LAST DEPLOYED: Thu Nov 11 14:25:55 2021
NAMESPACE: dev
STATUS: deployed
REVISION: 1
TEST SUITE: None
NOTES:
Spring Cloud!!!
[root@k8s-master test]# helm list -n dev
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
msa dev 1 2021-11-11 14:25:55.000327298 +0800 CST deployed cloud-0.1.0 1.0.0
[root@k8s-master test]# helm status msa -n dev
NAME: msa
LAST DEPLOYED: Thu Nov 11 14:25:55 2021
NAMESPACE: dev
STATUS: deployed
REVISION: 1
TEST SUITE: None
NOTES:
Spring Cloud!!!
# 检索已经发布的 release 的资源文件
[root@k8s-master test]# helm get manifest msa -n dev
---
# Source: cloud/templates/msa-deploy-consumer.yaml
apiVersion: v1
kind: Service
metadata:
namespace: dev
name: msa-deploy-consumer
labels:
app: msa-deploy-consumer
spec:
type: ClusterIP
ports:
- port: 8912
targetPort: 8912
selector:
app: msa-deploy-consumer
---
# Source: cloud/templates/msa-deploy-producer.yaml
apiVersion: v1
kind: Service
metadata:
namespace: dev
name: msa-deploy-producer
labels:
app: msa-deploy-producer
spec:
type: ClusterIP
ports:
- port: 8911
targetPort: 8911
selector:
app: msa-deploy-producer
---
# Source: cloud/templates/msa-eureka.yaml
apiVersion: v1
kind: Service
metadata:
namespace: dev
name: msa-eureka
labels:
app: msa-eureka
spec:
type: NodePort
ports:
- port: 10001
name: msa-eureka
targetPort: 10001
nodePort: 30001 #对外暴露30001端口
selector:
app: msa-eureka
---
# Source: cloud/templates/msa-gateway.yaml
apiVersion: v1
kind: Service
metadata:
namespace: dev
name: msa-gateway
labels:
app: msa-gateway
spec:
type: NodePort
ports:
- port: 8888
targetPort: 8888
nodePort: 30008 #对外暴露30008端口
selector:
app: msa-gateway
---
# Source: cloud/templates/msa-deploy-consumer.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
namespace: dev
name: msa-deploy-consumer
spec:
replicas: 3
selector:
matchLabels:
app: msa-deploy-consumer
template:
metadata:
labels:
app: msa-deploy-consumer
spec:
imagePullSecrets:
- name: harborsecret #对应创建私有镜像密钥Secret
containers:
- name: msa-deploy-consumer
image: 172.51.216.85:8888/springcloud/msa-deploy-consumer:2.0.0
imagePullPolicy: Always #如果省略imagePullPolicy,策略为IfNotPresent
ports:
- containerPort: 8912
env:
- name: EUREKA_SERVER
value: "http://msa-eureka-0.msa-eureka.dev:10001/eureka/,http://msa-eureka-1.msa-eureka.dev:10001/eureka/,http://msa-eureka-2.msa-eureka.dev:10001/eureka/"
- name: ACTIVE
value: "-Dspring.profiles.active=k8s"
- name: DASHBOARD
value: "sentinel-server.dev.svc.cluster.local:8858"
---
# Source: cloud/templates/msa-deploy-producer.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
namespace: dev
name: msa-deploy-producer
spec:
replicas: 3
selector:
matchLabels:
app: msa-deploy-producer
template:
metadata:
labels:
app: msa-deploy-producer
spec:
imagePullSecrets:
- name: harborsecret #对应创建私有镜像密钥Secret
containers:
- name: msa-deploy-producer
image: 172.51.216.85:8888/springcloud/msa-deploy-producer:2.0.0
imagePullPolicy: Always #如果省略imagePullPolicy,策略为IfNotPresent
ports:
- containerPort: 8911
env:
- name: EUREKA_SERVER
value: "http://msa-eureka-0.msa-eureka.dev:10001/eureka/,http://msa-eureka-1.msa-eureka.dev:10001/eureka/,http://msa-eureka-2.msa-eureka.dev:10001/eureka/"
- name: ACTIVE
value: "-Dspring.profiles.active=k8s"
- name: DASHBOARD
value: "sentinel-server.dev.svc.cluster.local:8858"
---
# Source: cloud/templates/msa-gateway.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
namespace: dev
name: msa-gateway
spec:
replicas: 3
selector:
matchLabels:
app: msa-gateway
template:
metadata:
labels:
app: msa-gateway
spec:
imagePullSecrets:
- name: harborsecret #对应创建私有镜像密钥Secret
containers:
- name: msa-gateway
image: 172.51.216.85:8888/springcloud/msa-gateway:2.0.0
imagePullPolicy: Always #如果省略imagePullPolicy,策略为IfNotPresent
ports:
- containerPort: 8888
env:
- name: EUREKA_SERVER
value: "http://msa-eureka-0.msa-eureka.dev:10001/eureka/,http://msa-eureka-1.msa-eureka.dev:10001/eureka/,http://msa-eureka-2.msa-eureka.dev:10001/eureka/"
- name: ACTIVE
value: "-Dspring.profiles.active=k8s"
---
# Source: cloud/templates/msa-eureka.yaml
apiVersion: apps/v1
kind: StatefulSet
metadata:
namespace: dev
name: msa-eureka
spec:
serviceName: msa-eureka
replicas: 3
selector:
matchLabels:
app: msa-eureka
template:
metadata:
labels:
app: msa-eureka
spec:
imagePullSecrets:
- name: harborsecret #对应创建私有镜像密钥Secret
containers:
- name: msa-eureka
image: 172.51.216.85:8888/springcloud/msa-eureka:2.0.0
ports:
- containerPort: 10001
env:
- name: MY_POD_NAME
valueFrom:
fieldRef:
fieldPath: metadata.name
- name: EUREKA_SERVER
value: "http://msa-eureka-0.msa-eureka.dev:10001/eureka/,http://msa-eureka-1.msa-eureka.dev:10001/eureka/,http://msa-eureka-2.msa-eureka.dev:10001/eureka/"
- name: EUREKA_INSTANCE_HOSTNAME
value: ${MY_POD_NAME}.msa-eureka.dev
- name: ACTIVE
value: "-Dspring.profiles.active=k8s"
podManagementPolicy: "Parallel"
# 打包
# 修改Chart.yaml中的helm chart配置信息，然后使用下列命令将chart打包成一个压缩文件。
# 打包出cloud-0.1.0.tgz文件。
[root@k8s-master test]# helm package cloud
Successfully packaged chart and saved it to: /k8s/springcloud-helm/test/cloud-0.1.0.tgz
[root@k8s-master test]# ll
total 4
drwxr-xr-x 4 root root 93 Nov 11 14:19 cloud
-rw-r--r-- 1 root root 2361 Nov 11 14:30 cloud-0.1.0.tgz
# 查看
[root@k8s-master test]# kubectl get all -n dev
NAME READY STATUS RESTARTS AGE
pod/msa-deploy-consumer-6b75cf55d-qg5rh 1/1 Running 0 6m2s
pod/msa-deploy-consumer-6b75cf55d-zmd5x 1/1 Running 0 6m2s
pod/msa-deploy-consumer-6b75cf55d-zqfpp 1/1 Running 0 6m2s
pod/msa-deploy-producer-7965c98bbf-8gqh2 1/1 Running 0 6m2s
pod/msa-deploy-producer-7965c98bbf-hfhb6 1/1 Running 0 6m2s
pod/msa-deploy-producer-7965c98bbf-ngmp4 1/1 Running 0 6m2s
pod/msa-eureka-0 1/1 Running 0 6m2s
pod/msa-eureka-1 1/1 Running 0 6m2s
pod/msa-eureka-2 1/1 Running 0 6m2s
pod/msa-gateway-597494c7f4-9rkxf 1/1 Running 0 6m2s
pod/msa-gateway-597494c7f4-wbjhl 1/1 Running 0 6m2s
pod/msa-gateway-597494c7f4-wl2bj 1/1 Running 0 6m2s
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/msa-deploy-consumer ClusterIP 10.103.23.244 <none> 8912/TCP 6m2s
service/msa-deploy-producer ClusterIP 10.109.200.26 <none> 8911/TCP 6m2s
service/msa-eureka NodePort 10.109.68.183 <none> 10001:30001/TCP 6m2s
service/msa-gateway NodePort 10.102.204.100 <none> 8888:30008/TCP 6m2s
NAME READY UP-TO-DATE AVAILABLE AGE
deployment.apps/msa-deploy-consumer 3/3 3 3 6m2s
deployment.apps/msa-deploy-producer 3/3 3 3 6m2s
deployment.apps/msa-gateway 3/3 3 3 6m2s
NAME DESIRED CURRENT READY AGE
replicaset.apps/msa-deploy-consumer-6b75cf55d 3 3 3 6m2s
replicaset.apps/msa-deploy-producer-7965c98bbf 3 3 3 6m2s
replicaset.apps/msa-gateway-597494c7f4 3 3 3 6m2s
NAME READY AGE
statefulset.apps/msa-eureka 3/3 6m2s
# 访问
# Eureka
http://172.51.216.81:30001/
# 网关访问地址
http://172.51.216.81:30008/dconsumer/hello
http://172.51.216.81:30008/dconsumer/say
http://172.51.216.81:30008/dproducer/hello
http://172.51.216.81:30008/dproducer/say
3.打包并发布到本地仓库
[root@k8s-master test]# helm list -n dev
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
msa dev 1 2021-11-11 14:25:55.000327298 +0800 CST deployed cloud-0.1.0 1.0.0
#从上面 helm list 输出的结果中我们可以看到有一个 Revision（更改历史）字段，该字段用于表示某一个 Release 被更新的次数，我们可以用该特性对已部署的 Release 进行回滚。
#修改 Chart.yaml 文件
#将版本号从 0.1.0 修改为 0.2.0, 然后使用 helm package 命令打包并发布到本地仓库。
# Chart.yaml
[root@k8s-master cloud]# vim Chart.yaml
apiVersion: v2
name: cloud
description: A Helm chart for Kubernetes
type: application
version: 0.2.0
appVersion: "1.0.0"
[root@k8s-master test]# helm package cloud
Successfully packaged chart and saved it to: /k8s/springcloud-helm/test/cloud-0.2.0.tgz
[root@k8s-master test]# ll
total 8
drwxr-xr-x 4 root root 93 Nov 11 14:44 cloud
-rw-r--r-- 1 root root 2361 Nov 11 14:30 cloud-0.1.0.tgz
-rw-r--r-- 1 root root 2361 Nov 11 14:45 cloud-0.2.0.tgz
4.升级
helm upgrade 命令将已部署的应用升级到新版本
发布新版本的chart时，或者当您要更改发布的配置时，可以使用该helm upgrade 命令。
# helm upgrade --set imageTag=1.17 web mynginx
# helm upgrade -f values.yaml web mynginx
values
Values对象是为Chart模板提供值，这个对象的值有4个来源：
chart 包中的 values.yaml 文件
父 chart 包的 values.yaml 文件
通过 helm install 或者 helm upgrade 的 -f或者 --values参数传入的自定义的 yaml 文件
通过 --set 参数传入的值
[root@k8s-master test]# kubectl get all -n dev
NAME READY STATUS RESTARTS AGE
pod/msa-deploy-consumer-6b75cf55d-qg5rh 1/1 Running 0 26m
pod/msa-deploy-consumer-6b75cf55d-zmd5x 1/1 Running 0 26m
pod/msa-deploy-consumer-6b75cf55d-zqfpp 1/1 Running 0 26m
pod/msa-deploy-producer-7965c98bbf-8gqh2 1/1 Running 0 26m
pod/msa-deploy-producer-7965c98bbf-hfhb6 1/1 Running 0 26m
pod/msa-deploy-producer-7965c98bbf-ngmp4 1/1 Running 0 26m
pod/msa-eureka-0 1/1 Running 0 26m
pod/msa-eureka-1 1/1 Running 0 26m
pod/msa-eureka-2 1/1 Running 0 26m
pod/msa-gateway-597494c7f4-9rkxf 1/1 Running 0 26m
pod/msa-gateway-597494c7f4-wbjhl 1/1 Running 0 26m
pod/msa-gateway-597494c7f4-wl2bj 1/1 Running 0 26m
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/msa-deploy-consumer ClusterIP 10.103.23.244 <none> 8912/TCP 26m
service/msa-deploy-producer ClusterIP 10.109.200.26 <none> 8911/TCP 26m
service/msa-eureka NodePort 10.109.68.183 <none> 10001:30001/TCP 26m
service/msa-gateway NodePort 10.102.204.100 <none> 8888:30008/TCP 26m
NAME READY UP-TO-DATE AVAILABLE AGE
deployment.apps/msa-deploy-consumer 3/3 3 3 26m
deployment.apps/msa-deploy-producer 3/3 3 3 26m
deployment.apps/msa-gateway 3/3 3 3 26m
NAME DESIRED CURRENT READY AGE
replicaset.apps/msa-deploy-consumer-6b75cf55d 3 3 3 26m
replicaset.apps/msa-deploy-producer-7965c98bbf 3 3 3 26m
replicaset.apps/msa-gateway-597494c7f4 3 3 3 26m
NAME READY AGE
statefulset.apps/msa-eureka 3/3 26m
# 此方法改变不了副本数
[root@k8s-master test]# helm upgrade msa --set replicas=5 cloud -n dev
Release "msa" has been upgraded. Happy Helming!
NAME: msa
LAST DEPLOYED: Thu Nov 11 14:54:21 2021
NAMESPACE: dev
STATUS: deployed
REVISION: 2
TEST SUITE: None
NOTES:
Spring Cloud!!!
# 没变化
[root@k8s-master test]# kubectl get all -n dev
NAME READY STATUS RESTARTS AGE
pod/msa-deploy-consumer-6b75cf55d-qg5rh 1/1 Running 0 30m
pod/msa-deploy-consumer-6b75cf55d-zmd5x 1/1 Running 0 30m
pod/msa-deploy-consumer-6b75cf55d-zqfpp 1/1 Running 0 30m
pod/msa-deploy-producer-7965c98bbf-8gqh2 1/1 Running 0 30m
pod/msa-deploy-producer-7965c98bbf-hfhb6 1/1 Running 0 30m
pod/msa-deploy-producer-7965c98bbf-ngmp4 1/1 Running 0 30m
pod/msa-eureka-0 1/1 Running 0 30m
pod/msa-eureka-1 1/1 Running 0 30m
pod/msa-eureka-2 1/1 Running 0 30m
pod/msa-gateway-597494c7f4-9rkxf 1/1 Running 0 30m
pod/msa-gateway-597494c7f4-wbjhl 1/1 Running 0 30m
pod/msa-gateway-597494c7f4-wl2bj 1/1 Running 0 30m
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/msa-deploy-consumer ClusterIP 10.103.23.244 <none> 8912/TCP 30m
service/msa-deploy-producer ClusterIP 10.109.200.26 <none> 8911/TCP 30m
service/msa-eureka NodePort 10.109.68.183 <none> 10001:30001/TCP 30m
service/msa-gateway NodePort 10.102.204.100 <none> 8888:30008/TCP 30m
NAME READY UP-TO-DATE AVAILABLE AGE
deployment.apps/msa-deploy-consumer 3/3 3 3 30m
deployment.apps/msa-deploy-producer 3/3 3 3 30m
deployment.apps/msa-gateway 3/3 3 3 30m
NAME DESIRED CURRENT READY AGE
replicaset.apps/msa-deploy-consumer-6b75cf55d 3 3 3 30m
replicaset.apps/msa-deploy-producer-7965c98bbf 3 3 3 30m
replicaset.apps/msa-gateway-597494c7f4 3 3 3 30m
NAME READY AGE
statefulset.apps/msa-eureka 3/3 30m
[root@k8s-master test]# helm list -n dev
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
msa dev 2 2021-11-11 14:54:21.874398457 +0800 CST deployed cloud-0.2.0 1.0.0
[root@k8s-master test]# helm history msa -n dev
REVISION UPDATED STATUS CHART APP VERSION DESCRIPTION
1 Thu Nov 11 14:25:55 2021 superseded cloud-0.1.0 1.0.0 Install complete
2 Thu Nov 11 14:54:21 2021 deployed cloud-0.2.0 1.0.0 Upgrade complete
# 没变化
[root@k8s-master test]# helm get manifest msa -n dev
---
# Source: cloud/templates/msa-deploy-consumer.yaml
apiVersion: v1
kind: Service
metadata:
namespace: dev
name: msa-deploy-consumer
labels:
app: msa-deploy-consumer
spec:
type: ClusterIP
ports:
- port: 8912
targetPort: 8912
selector:
app: msa-deploy-consumer
---
# Source: cloud/templates/msa-deploy-producer.yaml
apiVersion: v1
kind: Service
metadata:
namespace: dev
name: msa-deploy-producer
labels:
app: msa-deploy-producer
spec:
type: ClusterIP
ports:
- port: 8911
targetPort: 8911
selector:
app: msa-deploy-producer
---
# Source: cloud/templates/msa-eureka.yaml
apiVersion: v1
kind: Service
metadata:
namespace: dev
name: msa-eureka
labels:
app: msa-eureka
spec:
type: NodePort
ports:
- port: 10001
name: msa-eureka
targetPort: 10001
nodePort: 30001 #对外暴露30001端口
selector:
app: msa-eureka
---
# Source: cloud/templates/msa-gateway.yaml
apiVersion: v1
kind: Service
metadata:
namespace: dev
name: msa-gateway
labels:
app: msa-gateway
spec:
type: NodePort
ports:
- port: 8888
targetPort: 8888
nodePort: 30008 #对外暴露30008端口
selector:
app: msa-gateway
---
# Source: cloud/templates/msa-deploy-consumer.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
namespace: dev
name: msa-deploy-consumer
spec:
replicas: 3
selector:
matchLabels:
app: msa-deploy-consumer
template:
metadata:
labels:
app: msa-deploy-consumer
spec:
imagePullSecrets:
- name: harborsecret #对应创建私有镜像密钥Secret
containers:
- name: msa-deploy-consumer
image: 172.51.216.85:8888/springcloud/msa-deploy-consumer:2.0.0
imagePullPolicy: Always #如果省略imagePullPolicy,策略为IfNotPresent
ports:
- containerPort: 8912
env:
- name: EUREKA_SERVER
value: "http://msa-eureka-0.msa-eureka.dev:10001/eureka/,http://msa-eureka-1.msa-eureka.dev:10001/eureka/,http://msa-eureka-2.msa-eureka.dev:10001/eureka/"
- name: ACTIVE
value: "-Dspring.profiles.active=k8s"
- name: DASHBOARD
value: "sentinel-server.dev.svc.cluster.local:8858"
---
# Source: cloud/templates/msa-deploy-producer.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
namespace: dev
name: msa-deploy-producer
spec:
replicas: 3
selector:
matchLabels:
app: msa-deploy-producer
template:
metadata:
labels:
app: msa-deploy-producer
spec:
imagePullSecrets:
- name: harborsecret #对应创建私有镜像密钥Secret
containers:
- name: msa-deploy-producer
image: 172.51.216.85:8888/springcloud/msa-deploy-producer:2.0.0
imagePullPolicy: Always #如果省略imagePullPolicy,策略为IfNotPresent
ports:
- containerPort: 8911
env:
- name: EUREKA_SERVER
value: "http://msa-eureka-0.msa-eureka.dev:10001/eureka/,http://msa-eureka-1.msa-eureka.dev:10001/eureka/,http://msa-eureka-2.msa-eureka.dev:10001/eureka/"
- name: ACTIVE
value: "-Dspring.profiles.active=k8s"
- name: DASHBOARD
value: "sentinel-server.dev.svc.cluster.local:8858"
---
# Source: cloud/templates/msa-gateway.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
namespace: dev
name: msa-gateway
spec:
replicas: 3
selector:
matchLabels:
app: msa-gateway
template:
metadata:
labels:
app: msa-gateway
spec:
imagePullSecrets:
- name: harborsecret #对应创建私有镜像密钥Secret
containers:
- name: msa-gateway
image: 172.51.216.85:8888/springcloud/msa-gateway:2.0.0
imagePullPolicy: Always #如果省略imagePullPolicy,策略为IfNotPresent
ports:
- containerPort: 8888
env:
- name: EUREKA_SERVER
value: "http://msa-eureka-0.msa-eureka.dev:10001/eureka/,http://msa-eureka-1.msa-eureka.dev:10001/eureka/,http://msa-eureka-2.msa-eureka.dev:10001/eureka/"
- name: ACTIVE
value: "-Dspring.profiles.active=k8s"
---
# Source: cloud/templates/msa-eureka.yaml
apiVersion: apps/v1
kind: StatefulSet
metadata:
namespace: dev
name: msa-eureka
spec:
serviceName: msa-eureka
replicas: 3
selector:
matchLabels:
app: msa-eureka
template:
metadata:
labels:
app: msa-eureka
spec:
imagePullSecrets:
- name: harborsecret #对应创建私有镜像密钥Secret
containers:
- name: msa-eureka
image: 172.51.216.85:8888/springcloud/msa-eureka:2.0.0
ports:
- containerPort: 10001
env:
- name: MY_POD_NAME
valueFrom:
fieldRef:
fieldPath: metadata.name
- name: EUREKA_SERVER
value: "http://msa-eureka-0.msa-eureka.dev:10001/eureka/,http://msa-eureka-1.msa-eureka.dev:10001/eureka/,http://msa-eureka-2.msa-eureka.dev:10001/eureka/"
- name: EUREKA_INSTANCE_HOSTNAME
value: ${MY_POD_NAME}.msa-eureka.dev
- name: ACTIVE
value: "-Dspring.profiles.active=k8s"
podManagementPolicy: "Parallel"
# 又做了一次副本没变，版本变了
[root@k8s-master test]# helm list -n dev
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
msa dev 3 2021-11-11 15:03:34.282943143 +0800 CST deployed cloud-0.2.0 1.0.0
[root@k8s-master test]#
[root@k8s-master test]#
[root@k8s-master test]# helm history msa -n dev
REVISION UPDATED STATUS CHART APP VERSION DESCRIPTION
1 Thu Nov 11 14:25:55 2021 superseded cloud-0.1.0 1.0.0 Install complete
2 Thu Nov 11 14:54:21 2021 superseded cloud-0.2.0 1.0.0 Upgrade complete
3 Thu Nov 11 15:03:34 2021 deployed cloud-0.2.0 1.0.0 Upgrade complete
通过修改模板yaml升级
# 升级前
[root@k8s-master test]# helm list -n dev
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
msa dev 3 2021-11-11 15:03:34.282943143 +0800 CST deployed cloud-0.2.0 1.0.0
[root@k8s-master test]# helm status msa -n dev
NAME: msa
LAST DEPLOYED: Thu Nov 11 15:03:34 2021
NAMESPACE: dev
STATUS: deployed
REVISION: 3
TEST SUITE: None
NOTES:
Spring Cloud!!!
[root@k8s-master test]# helm history msa -n dev
REVISION UPDATED STATUS CHART APP VERSION DESCRIPTION
1 Thu Nov 11 14:25:55 2021 superseded cloud-0.1.0 1.0.0 Install complete
2 Thu Nov 11 14:54:21 2021 superseded cloud-0.2.0 1.0.0 Upgrade complete
3 Thu Nov 11 15:03:34 2021 deployed cloud-0.2.0 1.0.0 Upgrade complete
[root@k8s-master test]# kubectl get all -n dev
NAME READY STATUS RESTARTS AGE
pod/msa-deploy-consumer-6b75cf55d-qg5rh 1/1 Running 0 46m
pod/msa-deploy-consumer-6b75cf55d-zmd5x 1/1 Running 0 46m
pod/msa-deploy-consumer-6b75cf55d-zqfpp 1/1 Running 0 46m
pod/msa-deploy-producer-7965c98bbf-8gqh2 1/1 Running 0 46m
pod/msa-deploy-producer-7965c98bbf-hfhb6 1/1 Running 0 46m
pod/msa-deploy-producer-7965c98bbf-ngmp4 1/1 Running 0 46m
pod/msa-eureka-0 1/1 Running 0 46m
pod/msa-eureka-1 1/1 Running 0 46m
pod/msa-eureka-2 1/1 Running 0 46m
pod/msa-gateway-597494c7f4-9rkxf 1/1 Running 0 46m
pod/msa-gateway-597494c7f4-wbjhl 1/1 Running 0 46m
pod/msa-gateway-597494c7f4-wl2bj 1/1 Running 0 46m
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/msa-deploy-consumer ClusterIP 10.103.23.244 <none> 8912/TCP 46m
service/msa-deploy-producer ClusterIP 10.109.200.26 <none> 8911/TCP 46m
service/msa-eureka NodePort 10.109.68.183 <none> 10001:30001/TCP 46m
service/msa-gateway NodePort 10.102.204.100 <none> 8888:30008/TCP 46m
NAME READY UP-TO-DATE AVAILABLE AGE
deployment.apps/msa-deploy-consumer 3/3 3 3 46m
deployment.apps/msa-deploy-producer 3/3 3 3 46m
deployment.apps/msa-gateway 3/3 3 3 46m
NAME DESIRED CURRENT READY AGE
replicaset.apps/msa-deploy-consumer-6b75cf55d 3 3 3 46m
replicaset.apps/msa-deploy-producer-7965c98bbf 3 3 3 46m
replicaset.apps/msa-gateway-597494c7f4 3 3 3 46m
NAME READY AGE
statefulset.apps/msa-eureka 3/3 46m
# 修改文件
# 修改版本version: 0.3.0 tag: 1.16
[root@k8s-master cloud]# vim Chart.yaml
apiVersion: v2
name: cloud
description: A Helm chart for Kubernetes
type: application
version: 0.3.0
appVersion: "1.0.1"
# 生产者副本数从3改成6
[root@k8s-master cloud]# vim templates/msa-deploy-producer.yaml
spec:
replicas: 6
# 升级
[root@k8s-master test]# helm upgrade msa cloud -n dev
Release "msa" has been upgraded. Happy Helming!
NAME: msa
LAST DEPLOYED: Thu Nov 11 15:19:27 2021
NAMESPACE: dev
STATUS: deployed
REVISION: 4
TEST SUITE: None
NOTES:
Spring Cloud!!!
[root@k8s-master test]# helm list -n dev
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
msa dev 4 2021-11-11 15:19:27.147696331 +0800 CST deployed cloud-0.3.0 1.0.1
[root@k8s-master test]# helm history msa -n dev
REVISION UPDATED STATUS CHART APP VERSION DESCRIPTION
1 Thu Nov 11 14:25:55 2021 superseded cloud-0.1.0 1.0.0 Install complete
2 Thu Nov 11 14:54:21 2021 superseded cloud-0.2.0 1.0.0 Upgrade complete
3 Thu Nov 11 15:03:34 2021 superseded cloud-0.2.0 1.0.0 Upgrade complete
4 Thu Nov 11 15:19:27 2021 deployed cloud-0.3.0 1.0.1 Upgrade complete
[root@k8s-master test]# kubectl get all -n dev
NAME READY STATUS RESTARTS AGE
pod/msa-deploy-consumer-6b75cf55d-qg5rh 1/1 Running 0 55m
pod/msa-deploy-consumer-6b75cf55d-zmd5x 1/1 Running 0 55m
pod/msa-deploy-consumer-6b75cf55d-zqfpp 1/1 Running 0 55m
pod/msa-deploy-producer-7965c98bbf-4cdvz 1/1 Running 0 2m13s
pod/msa-deploy-producer-7965c98bbf-8gqh2 1/1 Running 0 55m
pod/msa-deploy-producer-7965c98bbf-hfhb6 1/1 Running 0 55m
pod/msa-deploy-producer-7965c98bbf-k5ppd 1/1 Running 0 2m13s
pod/msa-deploy-producer-7965c98bbf-ngmp4 1/1 Running 0 55m
pod/msa-deploy-producer-7965c98bbf-s7mfs 1/1 Running 0 2m13s
pod/msa-eureka-0 1/1 Running 0 55m
pod/msa-eureka-1 1/1 Running 0 55m
pod/msa-eureka-2 1/1 Running 0 55m
pod/msa-gateway-597494c7f4-9rkxf 1/1 Running 0 55m
pod/msa-gateway-597494c7f4-wbjhl 1/1 Running 0 55m
pod/msa-gateway-597494c7f4-wl2bj 1/1 Running 0 55m
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/msa-deploy-consumer ClusterIP 10.103.23.244 <none> 8912/TCP 55m
service/msa-deploy-producer ClusterIP 10.109.200.26 <none> 8911/TCP 55m
service/msa-eureka NodePort 10.109.68.183 <none> 10001:30001/TCP 55m
service/msa-gateway NodePort 10.102.204.100 <none> 8888:30008/TCP 55m
NAME READY UP-TO-DATE AVAILABLE AGE
deployment.apps/msa-deploy-consumer 3/3 3 3 55m
deployment.apps/msa-deploy-producer 6/6 6 6 55m
deployment.apps/msa-gateway 3/3 3 3 55m
NAME DESIRED CURRENT READY AGE
replicaset.apps/msa-deploy-consumer-6b75cf55d 3 3 3 55m
replicaset.apps/msa-deploy-producer-7965c98bbf 6 6 6 55m
replicaset.apps/msa-gateway-597494c7f4 3 3 3 55m
NAME READY AGE
statefulset.apps/msa-eureka 3/3 55m
[root@k8s-master test]# helm get manifest msa -n dev
---
# Source: cloud/templates/msa-deploy-consumer.yaml
.....
---
# Source: cloud/templates/msa-deploy-producer.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
namespace: dev
name: msa-deploy-producer
spec:
replicas: 6
selector:
matchLabels:
app: msa-deploy-producer
template:
metadata:
labels:
app: msa-deploy-producer
spec:
imagePullSecrets:
- name: harborsecret #对应创建私有镜像密钥Secret
containers:
- name: msa-deploy-producer
image: 172.51.216.85:8888/springcloud/msa-deploy-producer:2.0.0
imagePullPolicy: Always #如果省略imagePullPolicy,策略为IfNotPresent
ports:
- containerPort: 8911
env:
- name: EUREKA_SERVER
value: "http://msa-eureka-0.msa-eureka.dev:10001/eureka/,http://msa-eureka-1.msa-eureka.dev:10001/eureka/,http://msa-eureka-2.msa-eureka.dev:10001/eureka/"
- name: ACTIVE
value: "-Dspring.profiles.active=k8s"
- name: DASHBOARD
value: "sentinel-server.dev.svc.cluster.local:8858"
---
......
5.回滚
# 如果在发布后没有达到预期的效果，则可以使用helm rollback回滚到之前的版本。
# 例如将应用回滚到第一个版本：
helm rollback web 1
# 回滚前
[root@k8s-master test]# helm list -n dev
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
msa dev 5 2021-11-11 15:28:30.73309279 +0800 CST deployed cloud-0.3.0 1.0.1
[root@k8s-master test]# helm status msa -n dev
NAME: msa
LAST DEPLOYED: Thu Nov 11 15:28:30 2021
NAMESPACE: dev
STATUS: deployed
REVISION: 5
TEST SUITE: None
NOTES:
Spring Cloud!!!
[root@k8s-master test]# helm history msa -n dev
REVISION UPDATED STATUS CHART APP VERSION DESCRIPTION
1 Thu Nov 11 14:25:55 2021 superseded cloud-0.1.0 1.0.0 Install complete
2 Thu Nov 11 14:54:21 2021 superseded cloud-0.2.0 1.0.0 Upgrade complete
3 Thu Nov 11 15:03:34 2021 superseded cloud-0.2.0 1.0.0 Upgrade complete
4 Thu Nov 11 15:19:27 2021 superseded cloud-0.3.0 1.0.1 Upgrade complete
5 Thu Nov 11 15:28:30 2021 deployed cloud-0.3.0 1.0.1 Upgrade complete
[root@k8s-master test]# kubectl get pod -n dev
NAME READY STATUS RESTARTS AGE
msa-deploy-consumer-6b75cf55d-qg5rh 1/1 Running 0 65m
msa-deploy-consumer-6b75cf55d-zmd5x 1/1 Running 0 65m
msa-deploy-consumer-6b75cf55d-zqfpp 1/1 Running 0 65m
msa-deploy-producer-7965c98bbf-4cdvz 1/1 Running 0 11m
msa-deploy-producer-7965c98bbf-8gqh2 1/1 Running 0 65m
msa-deploy-producer-7965c98bbf-hfhb6 1/1 Running 0 65m
msa-deploy-producer-7965c98bbf-k5ppd 1/1 Running 0 11m
msa-deploy-producer-7965c98bbf-ngmp4 1/1 Running 0 65m
msa-deploy-producer-7965c98bbf-s7mfs 1/1 Running 0 11m
msa-eureka-0 1/1 Running 0 65m
msa-eureka-1 1/1 Running 0 65m
msa-eureka-2 1/1 Running 0 65m
msa-gateway-597494c7f4-9rkxf 1/1 Running 0 65m
msa-gateway-597494c7f4-wbjhl 1/1 Running 0 65m
msa-gateway-597494c7f4-wl2bj 1/1 Running 0 65m
# 回滚到版本1
[root@k8s-master test]# helm rollback msa 1 -n dev
Rollback was a success! Happy Helming!
# 回滚后的状态
[root@k8s-master test]# helm list -n dev
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
msa dev 6 2021-11-11 15:32:24.965626915 +0800 CST deployed cloud-0.1.0 1.0.0
[root@k8s-master test]# helm status msa -n dev
NAME: msa
LAST DEPLOYED: Thu Nov 11 15:32:24 2021
NAMESPACE: dev
STATUS: deployed
REVISION: 6
TEST SUITE: None
NOTES:
Spring Cloud!!!
[root@k8s-master test]# helm history msa -n dev
REVISION UPDATED STATUS CHART APP VERSION DESCRIPTION
1 Thu Nov 11 14:25:55 2021 superseded cloud-0.1.0 1.0.0 Install complete
2 Thu Nov 11 14:54:21 2021 superseded cloud-0.2.0 1.0.0 Upgrade complete
3 Thu Nov 11 15:03:34 2021 superseded cloud-0.2.0 1.0.0 Upgrade complete
4 Thu Nov 11 15:19:27 2021 superseded cloud-0.3.0 1.0.1 Upgrade complete
5 Thu Nov 11 15:28:30 2021 superseded cloud-0.3.0 1.0.1 Upgrade complete
6 Thu Nov 11 15:32:24 2021 deployed cloud-0.1.0 1.0.0 Rollback to 1
[root@k8s-master test]# kubectl get pod -n dev
NAME READY STATUS RESTARTS AGE
msa-deploy-consumer-6b75cf55d-qg5rh 1/1 Running 0 68m
msa-deploy-consumer-6b75cf55d-zmd5x 1/1 Running 0 68m
msa-deploy-consumer-6b75cf55d-zqfpp 1/1 Running 0 68m
msa-deploy-producer-7965c98bbf-8gqh2 1/1 Running 0 68m
msa-deploy-producer-7965c98bbf-hfhb6 1/1 Running 0 68m
msa-deploy-producer-7965c98bbf-ngmp4 1/1 Running 0 68m
msa-eureka-0 1/1 Running 0 68m
msa-eureka-1 1/1 Running 0 68m
msa-eureka-2 1/1 Running 0 68m
msa-gateway-597494c7f4-9rkxf 1/1 Running 0 68m
msa-gateway-597494c7f4-wbjhl 1/1 Running 0 68m
msa-gateway-597494c7f4-wl2bj 1/1 Running 0 68m
6.删除
卸载发行版，请使用以下helm uninstall命令：
# helm uninstall web -n dev
# helm delete web -n dev
[root@k8s-master test]# helm uninstall msa -n dev
release "msa" uninstalled
[root@k8s-master test]# helm list -n dev
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
[root@k8s-master test]# helm history msa -n dev
Error: release: not found
7.使用包安装
# 使用 cloud-0.2.0.tgz 安装
[root@k8s-master test]# ll
total 8
drwxr-xr-x 4 root root 93 Nov 11 15:16 cloud
-rw-r--r-- 1 root root 2361 Nov 11 14:30 cloud-0.1.0.tgz
-rw-r--r-- 1 root root 2361 Nov 11 14:45 cloud-0.2.0.tgz
[root@k8s-master test]# helm install msa cloud-0.2.0.tgz -n dev
NAME: msa
LAST DEPLOYED: Thu Nov 11 15:38:30 2021
NAMESPACE: dev
STATUS: deployed
REVISION: 1
TEST SUITE: None
NOTES:
Spring Cloud!!!
[root@k8s-master test]# helm list -n dev
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
msa dev 1 2021-11-11 15:38:30.699684217 +0800 CST deployed cloud-0.2.0 1.0.0
[root@k8s-master test]# helm get manifest msa -n dev
---
# Source: cloud/templates/msa-deploy-consumer.yaml
apiVersion: v1
kind: Service
metadata:
namespace: dev
name: msa-deploy-consumer
labels:
app: msa-deploy-consumer
spec:
type: ClusterIP
ports:
- port: 8912
targetPort: 8912
selector:
app: msa-deploy-consumer
---
# Source: cloud/templates/msa-deploy-producer.yaml
apiVersion: v1
kind: Service
metadata:
namespace: dev
name: msa-deploy-producer
labels:
app: msa-deploy-producer
spec:
type: ClusterIP
ports:
- port: 8911
targetPort: 8911
selector:
app: msa-deploy-producer
---
# Source: cloud/templates/msa-eureka.yaml
apiVersion: v1
kind: Service
metadata:
namespace: dev
name: msa-eureka
labels:
app: msa-eureka
spec:
type: NodePort
ports:
- port: 10001
name: msa-eureka
targetPort: 10001
nodePort: 30001 #对外暴露30001端口
selector:
app: msa-eureka
---
# Source: cloud/templates/msa-gateway.yaml
apiVersion: v1
kind: Service
metadata:
namespace: dev
name: msa-gateway
labels:
app: msa-gateway
spec:
type: NodePort
ports:
- port: 8888
targetPort: 8888
nodePort: 30008 #对外暴露30008端口
selector:
app: msa-gateway
---
# Source: cloud/templates/msa-deploy-consumer.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
namespace: dev
name: msa-deploy-consumer
spec:
replicas: 3
selector:
matchLabels:
app: msa-deploy-consumer
template:
metadata:
labels:
app: msa-deploy-consumer
spec:
imagePullSecrets:
- name: harborsecret #对应创建私有镜像密钥Secret
containers:
- name: msa-deploy-consumer
image: 172.51.216.85:8888/springcloud/msa-deploy-consumer:2.0.0
imagePullPolicy: Always #如果省略imagePullPolicy,策略为IfNotPresent
ports:
- containerPort: 8912
env:
- name: EUREKA_SERVER
value: "http://msa-eureka-0.msa-eureka.dev:10001/eureka/,http://msa-eureka-1.msa-eureka.dev:10001/eureka/,http://msa-eureka-2.msa-eureka.dev:10001/eureka/"
- name: ACTIVE
value: "-Dspring.profiles.active=k8s"
- name: DASHBOARD
value: "sentinel-server.dev.svc.cluster.local:8858"
---
# Source: cloud/templates/msa-deploy-producer.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
namespace: dev
name: msa-deploy-producer
spec:
replicas: 3
selector:
matchLabels:
app: msa-deploy-producer
template:
metadata:
labels:
app: msa-deploy-producer
spec:
imagePullSecrets:
- name: harborsecret #对应创建私有镜像密钥Secret
containers:
- name: msa-deploy-producer
image: 172.51.216.85:8888/springcloud/msa-deploy-producer:2.0.0
imagePullPolicy: Always #如果省略imagePullPolicy,策略为IfNotPresent
ports:
- containerPort: 8911
env:
- name: EUREKA_SERVER
value: "http://msa-eureka-0.msa-eureka.dev:10001/eureka/,http://msa-eureka-1.msa-eureka.dev:10001/eureka/,http://msa-eureka-2.msa-eureka.dev:10001/eureka/"
- name: ACTIVE
value: "-Dspring.profiles.active=k8s"
- name: DASHBOARD
value: "sentinel-server.dev.svc.cluster.local:8858"
---
# Source: cloud/templates/msa-gateway.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
namespace: dev
name: msa-gateway
spec:
replicas: 3
selector:
matchLabels:
app: msa-gateway
template:
metadata:
labels:
app: msa-gateway
spec:
imagePullSecrets:
- name: harborsecret #对应创建私有镜像密钥Secret
containers:
- name: msa-gateway
image: 172.51.216.85:8888/springcloud/msa-gateway:2.0.0
imagePullPolicy: Always #如果省略imagePullPolicy,策略为IfNotPresent
ports:
- containerPort: 8888
env:
- name: EUREKA_SERVER
value: "http://msa-eureka-0.msa-eureka.dev:10001/eureka/,http://msa-eureka-1.msa-eureka.dev:10001/eureka/,http://msa-eureka-2.msa-eureka.dev:10001/eureka/"
- name: ACTIVE
value: "-Dspring.profiles.active=k8s"
---
# Source: cloud/templates/msa-eureka.yaml
apiVersion: apps/v1
kind: StatefulSet
metadata:
namespace: dev
name: msa-eureka
spec:
serviceName: msa-eureka
replicas: 3
selector:
matchLabels:
app: msa-eureka
template:
metadata:
labels:
app: msa-eureka
spec:
imagePullSecrets:
- name: harborsecret #对应创建私有镜像密钥Secret
containers:
- name: msa-eureka
image: 172.51.216.85:8888/springcloud/msa-eureka:2.0.0
ports:
- containerPort: 10001
env:
- name: MY_POD_NAME
valueFrom:
fieldRef:
fieldPath: metadata.name
- name: EUREKA_SERVER
value: "http://msa-eureka-0.msa-eureka.dev:10001/eureka/,http://msa-eureka-1.msa-eureka.dev:10001/eureka/,http://msa-eureka-2.msa-eureka.dev:10001/eureka/"
- name: EUREKA_INSTANCE_HOSTNAME
value: ${MY_POD_NAME}.msa-eureka.dev
- name: ACTIVE
value: "-Dspring.profiles.active=k8s"
podManagementPolicy: "Parallel"
[root@k8s-master test]# kubectl get all -n dev
NAME READY STATUS RESTARTS AGE
pod/msa-deploy-consumer-6b75cf55d-bssl8 1/1 Running 0 101s
pod/msa-deploy-consumer-6b75cf55d-bxxp2 1/1 Running 0 101s
pod/msa-deploy-consumer-6b75cf55d-w658j 1/1 Running 0 101s
pod/msa-deploy-producer-7965c98bbf-7r4tb 1/1 Running 0 101s
pod/msa-deploy-producer-7965c98bbf-8wnbc 1/1 Running 0 101s
pod/msa-deploy-producer-7965c98bbf-rxw99 1/1 Running 0 101s
pod/msa-eureka-0 1/1 Running 0 100s
pod/msa-eureka-1 1/1 Running 0 100s
pod/msa-eureka-2 1/1 Running 0 100s
pod/msa-gateway-597494c7f4-48zm2 1/1 Running 0 101s
pod/msa-gateway-597494c7f4-94r9m 1/1 Running 0 101s
pod/msa-gateway-597494c7f4-mn8mc 1/1 Running 0 101s
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/msa-deploy-consumer ClusterIP 10.110.49.38 <none> 8912/TCP 101s
service/msa-deploy-producer ClusterIP 10.98.244.64 <none> 8911/TCP 101s
service/msa-eureka NodePort 10.100.79.138 <none> 10001:30001/TCP 101s
service/msa-gateway NodePort 10.109.116.147 <none> 8888:30008/TCP 101s
NAME READY UP-TO-DATE AVAILABLE AGE
deployment.apps/msa-deploy-consumer 3/3 3 3 101s
deployment.apps/msa-deploy-producer 3/3 3 3 101s
deployment.apps/msa-gateway 3/3 3 3 101s
NAME DESIRED CURRENT READY AGE
replicaset.apps/msa-deploy-consumer-6b75cf55d 3 3 3 101s
replicaset.apps/msa-deploy-producer-7965c98bbf 3 3 3 101s
replicaset.apps/msa-gateway-597494c7f4 3 3 3 101s
NAME READY AGE
statefulset.apps/msa-eureka 3/3 101s
# 删除
[root@k8s-master test]# helm delete msa -n dev
release "msa" uninstalled
[root@k8s-master test]# helm list -n dev
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
8.配置values
8.1.修改配置信息
values.yaml
global:
namespace: "dev"
producer:
name: "msa-deploy-producer"
serviceType: "ClusterIP"
port: 8911
targetPort: 8911
replicas: 4
生产者
msa-deploy-producer.yaml
apiVersion: v1
kind: Service
metadata:
namespace: {{ .Values.global.namespace }}
name: {{ .Values.producer.name }}
labels:
app: {{ .Values.producer.name }}
spec:
type: {{ .Values.producer.serviceType }}
ports:
- port: {{ .Values.producer.port }}
targetPort: {{ .Values.producer.targetPort }}
selector:
app: {{ .Values.producer.name }}
---
apiVersion: apps/v1
kind: Deployment
metadata:
namespace: {{ .Values.global.namespace }}
name: {{ .Values.producer.name }}
spec:
replicas: {{ .Values.producer.replicas }}
selector:
matchLabels:
app: {{ .Values.producer.name }}
template:
metadata:
labels:
app: {{ .Values.producer.name }}
spec:
imagePullSecrets:
- name: harborsecret #对应创建私有镜像密钥Secret
containers:
- name: {{ .Values.producer.name }}
image: 172.51.216.85:8888/springcloud/{{ .Values.producer.name }}:2.0.0
imagePullPolicy: Always #如果省略imagePullPolicy,策略为IfNotPresent
ports:
- containerPort: {{ .Values.producer.targetPort }}
env:
- name: EUREKA_SERVER
value: "http://msa-eureka-0.msa-eureka.dev:10001/eureka/,http://msa-eureka-1.msa-eureka.dev:10001/eureka/,http://msa-eureka-2.msa-eureka.dev:10001/eureka/"
- name: ACTIVE
value: "-Dspring.profiles.active=k8s"
- name: DASHBOARD
value: "sentinel-server.dev.svc.cluster.local:8858"
原配置
apiVersion: v1
kind: Service
metadata:
namespace: dev
name: msa-deploy-producer
labels:
app: msa-deploy-producer
spec:
type: ClusterIP
ports:
- port: 8911
targetPort: 8911
selector:
app: msa-deploy-producer
---
apiVersion: apps/v1
kind: Deployment
metadata:
namespace: dev
name: msa-deploy-producer
spec:
replicas: 3
selector:
matchLabels:
app: msa-deploy-producer
template:
metadata:
labels:
app: msa-deploy-producer
spec:
imagePullSecrets:
- name: harborsecret #对应创建私有镜像密钥Secret
containers:
- name: msa-deploy-producer
image: 172.51.216.85:8888/springcloud/msa-deploy-producer:2.0.0
imagePullPolicy: Always #如果省略imagePullPolicy,策略为IfNotPresent
ports:
- containerPort: 8911
env:
- name: EUREKA_SERVER
value: "http://msa-eureka-0.msa-eureka.dev:10001/eureka/,http://msa-eureka-1.msa-eureka.dev:10001/eureka/,http://msa-eureka-2.msa-eureka.dev:10001/eureka/"
- name: ACTIVE
value: "-Dspring.profiles.active=k8s"
- name: DASHBOARD
value: "sentinel-server.dev.svc.cluster.local:8858"
8.2.部署服务
[root@k8s-master test]# helm install msa cloud --dry-run --debug -n dev
install.go:173: [debug] Original chart version: ""
install.go:190: [debug] CHART PATH: /k8s/springcloud-helm/test/cloud
NAME: msa
LAST DEPLOYED: Thu Nov 11 16:31:39 2021
NAMESPACE: dev
STATUS: pending-install
REVISION: 1
TEST SUITE: None
USER-SUPPLIED VALUES:
{}
COMPUTED VALUES:
global:
namespace: dev
producer:
name: msa-deploy-producer
port: 8911
replicas: 4
serviceType: ClusterIP
targetPort: 8911
---
# Source: cloud/templates/msa-deploy-producer.yaml
apiVersion: v1
kind: Service
metadata:
namespace: dev
name: msa-deploy-producer
labels:
app: msa-deploy-producer
spec:
type: ClusterIP
ports:
- port: 8911
targetPort: 8911
selector:
app: msa-deploy-producer
---
# Source: cloud/templates/msa-deploy-producer.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
namespace: dev
name: msa-deploy-producer
spec:
replicas: 4
selector:
matchLabels:
app: msa-deploy-producer
template:
metadata:
labels:
app: msa-deploy-producer
spec:
imagePullSecrets:
- name: harborsecret #对应创建私有镜像密钥Secret
containers:
- name: msa-deploy-producer
image: 172.51.216.85:8888/springcloud/msa-deploy-producer:2.0.0
imagePullPolicy: Always #如果省略imagePullPolicy,策略为IfNotPresent
ports:
- containerPort: 8911
env:
- name: EUREKA_SERVER
value: "http://msa-eureka-0.msa-eureka.dev:10001/eureka/,http://msa-eureka-1.msa-eureka.dev:10001/eureka/,http://msa-eureka-2.msa-eureka.dev:10001/eureka/"
- name: ACTIVE
value: "-Dspring.profiles.active=k8s"
- name: DASHBOARD
value: "sentinel-server.dev.svc.cluster.local:8858"
---
----------------------------------------------------------------------
# 安装
[root@k8s-master test]# helm install msa cloud -n dev
NAME: msa
LAST DEPLOYED: Thu Nov 11 16:35:10 2021
NAMESPACE: dev
STATUS: deployed
REVISION: 1
TEST SUITE: None
NOTES:
Spring Cloud!!!
[root@k8s-master test]# helm list -n dev
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
msa dev 1 2021-11-11 16:35:10.13704314 +0800 CST deployed cloud-0.3.0 1.0.1
# 检索已经发布的 release 的资源文件
[root@k8s-master test]# helm get manifest msa -n dev
---
# Source: cloud/templates/msa-deploy-producer.yaml
apiVersion: v1
kind: Service
metadata:
namespace: dev
name: msa-deploy-producer
labels:
app: msa-deploy-producer
spec:
type: ClusterIP
ports:
- port: 8911
targetPort: 8911
selector:
app: msa-deploy-producer
---
# Source: cloud/templates/msa-deploy-producer.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
namespace: dev
name: msa-deploy-producer
spec:
replicas: 4
selector:
matchLabels:
app: msa-deploy-producer
template:
metadata:
labels:
app: msa-deploy-producer
spec:
imagePullSecrets:
- name: harborsecret #对应创建私有镜像密钥Secret
containers:
- name: msa-deploy-producer
image: 172.51.216.85:8888/springcloud/msa-deploy-producer:2.0.0
imagePullPolicy: Always #如果省略imagePullPolicy,策略为IfNotPresent
ports:
- containerPort: 8911
env:
- name: EUREKA_SERVER
value: "http://msa-eureka-0.msa-eureka.dev:10001/eureka/,http://msa-eureka-1.msa-eureka.dev:10001/eureka/,http://msa-eureka-2.msa-eureka.dev:10001/eureka/"
- name: ACTIVE
value: "-Dspring.profiles.active=k8s"
- name: DASHBOARD
value: "sentinel-server.dev.svc.cluster.local:8858"
---
[root@k8s-master test]# kubectl get all -n dev
NAME READY STATUS RESTARTS AGE
pod/msa-deploy-consumer-6b75cf55d-kxsvz 1/1 Running 0 4m23s
pod/msa-deploy-consumer-6b75cf55d-qg84f 1/1 Running 0 4m23s
pod/msa-deploy-consumer-6b75cf55d-tqktz 1/1 Running 0 4m23s
pod/msa-deploy-producer-7965c98bbf-6d976 1/1 Running 0 4m23s
pod/msa-deploy-producer-7965c98bbf-6npwt 1/1 Running 0 4m23s
pod/msa-deploy-producer-7965c98bbf-fhmgw 1/1 Running 0 4m23s
pod/msa-deploy-producer-7965c98bbf-nwx8k 1/1 Running 0 4m23s
pod/msa-eureka-0 1/1 Running 0 4m23s
pod/msa-eureka-1 1/1 Running 0 4m23s
pod/msa-eureka-2 1/1 Running 0 4m23s
pod/msa-gateway-597494c7f4-2lcvs 1/1 Running 0 4m23s
pod/msa-gateway-597494c7f4-5vh8r 1/1 Running 0 4m23s
pod/msa-gateway-597494c7f4-7jt6x 1/1 Running 0 4m23s
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/msa-deploy-consumer ClusterIP 10.103.121.58 <none> 8912/TCP 4m23s
service/msa-deploy-producer ClusterIP 10.108.38.255 <none> 8911/TCP 4m23s
service/msa-eureka NodePort 10.111.194.177 <none> 10001:30001/TCP 4m23s
service/msa-gateway NodePort 10.103.34.236 <none> 8888:30008/TCP 4m23s
NAME READY UP-TO-DATE AVAILABLE AGE
deployment.apps/msa-deploy-consumer 3/3 3 3 4m23s
deployment.apps/msa-deploy-producer 4/4 4 4 4m23s
deployment.apps/msa-gateway 3/3 3 3 4m23s
NAME DESIRED CURRENT READY AGE
replicaset.apps/msa-deploy-consumer-6b75cf55d 3 3 3 4m23s
replicaset.apps/msa-deploy-producer-7965c98bbf 4 4 4 4m23s
replicaset.apps/msa-gateway-597494c7f4 3 3 3 4m23s
NAME READY AGE
statefulset.apps/msa-eureka 3/3 4m23s
8.3.升级
通过修改values.yaml升级
# 升级前
[root@k8s-master test]# helm list -n dev
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
msa dev 1 2021-11-11 16:35:10.13704314 +0800 CST deployed cloud-0.3.0 1.0.1
[root@k8s-master test]# helm status msa -n dev
NAME: msa
LAST DEPLOYED: Thu Nov 11 16:35:10 2021
NAMESPACE: dev
STATUS: deployed
REVISION: 1
TEST SUITE: None
NOTES:
Spring Cloud!!!
[root@k8s-master test]# helm history msa -n dev
REVISION UPDATED STATUS CHART APP VERSION DESCRIPTION
1 Thu Nov 11 16:35:10 2021 deployed cloud-0.3.0 1.0.1 Install complete
[root@k8s-master test]# kubectl get pod -n dev
NAME READY STATUS RESTARTS AGE
msa-deploy-consumer-6b75cf55d-kxsvz 1/1 Running 0 8m59s
msa-deploy-consumer-6b75cf55d-qg84f 1/1 Running 0 8m59s
msa-deploy-consumer-6b75cf55d-tqktz 1/1 Running 0 8m59s
msa-deploy-producer-7965c98bbf-6d976 1/1 Running 0 8m59s
msa-deploy-producer-7965c98bbf-6npwt 1/1 Running 0 8m59s
msa-deploy-producer-7965c98bbf-fhmgw 1/1 Running 0 8m59s
msa-deploy-producer-7965c98bbf-nwx8k 1/1 Running 0 8m59s
msa-eureka-0 1/1 Running 0 8m59s
msa-eureka-1 1/1 Running 0 8m59s
msa-eureka-2 1/1 Running 0 8m59s
msa-gateway-597494c7f4-2lcvs 1/1 Running 0 8m59s
msa-gateway-597494c7f4-5vh8r 1/1 Running 0 8m59s
msa-gateway-597494c7f4-7jt6x 1/1 Running 0 8m59s
# 修改文件
# 修改版本version: 0.3.0 tag: 1.16
[root@k8s-master cloud]# vim Chart.yaml
apiVersion: v2
name: cloud
description: A Helm chart for Kubernetes
type: application
version: 0.4.0
appVersion: "1.0.4"
# 修改成8副本
[root@k8s-master cloud]# vim values.yaml
global:
namespace: "dev"
producer:
name: "msa-deploy-producer"
serviceType: "ClusterIP"
port: 8911
targetPort: 8911
replicas: 8
# 升级
[root@k8s-master test]# helm upgrade msa cloud -n dev
Release "msa" has been upgraded. Happy Helming!
NAME: msa
LAST DEPLOYED: Thu Nov 11 16:47:03 2021
NAMESPACE: dev
STATUS: deployed
REVISION: 2
TEST SUITE: None
NOTES:
Spring Cloud!!!
[root@k8s-master test]# helm list -n dev
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
msa dev 2 2021-11-11 16:47:03.064552385 +0800 CST deployed cloud-0.4.0 1.0.4
[root@k8s-master test]# helm history msa -n dev
REVISION UPDATED STATUS CHART APP VERSION DESCRIPTION
1 Thu Nov 11 16:35:10 2021 superseded cloud-0.3.0 1.0.1 Install complete
2 Thu Nov 11 16:47:03 2021 deployed cloud-0.4.0 1.0.4 Upgrade complete
[root@k8s-master test]# kubectl get pod -n dev
NAME READY STATUS RESTARTS AGE
msa-deploy-consumer-6b75cf55d-kxsvz 1/1 Running 0 13m
msa-deploy-consumer-6b75cf55d-qg84f 1/1 Running 0 13m
msa-deploy-consumer-6b75cf55d-tqktz 1/1 Running 0 13m
msa-deploy-producer-7965c98bbf-4kgnh 1/1 Running 0 80s
msa-deploy-producer-7965c98bbf-6d976 1/1 Running 0 13m
msa-deploy-producer-7965c98bbf-6npwt 1/1 Running 0 13m
msa-deploy-producer-7965c98bbf-clnwr 1/1 Running 0 80s
msa-deploy-producer-7965c98bbf-fhmgw 1/1 Running 0 13m
msa-deploy-producer-7965c98bbf-jvwrl 1/1 Running 0 80s
msa-deploy-producer-7965c98bbf-nwx8k 1/1 Running 0 13m
msa-deploy-producer-7965c98bbf-p2hk4 1/1 Running 0 80s
msa-eureka-0 1/1 Running 0 13m
msa-eureka-1 1/1 Running 0 13m
msa-eureka-2 1/1 Running 0 13m
msa-gateway-597494c7f4-2lcvs 1/1 Running 0 13m
msa-gateway-597494c7f4-5vh8r 1/1 Running 0 13m
msa-gateway-597494c7f4-7jt6x 1/1 Running 0 13m
[root@k8s-master test]# helm get manifest msa -n dev
9.Chart Hooks
9.1.Hook配置
Hooks在资源清单中的metadata部分用annotations注解的方式进行声明：
apiVersion: batch/v1
kind: Job
metadata:
annotations:
"helm.sh/hook": post-install,post-upgrade
"helm.sh/hook-weight": "-5"
"helm.sh/hook-delete-policy": hook-succeeded
......
9.2.生产者加Hook注解
msa-deploy-producer.yaml
apiVersion: v1
kind: Service
metadata:
namespace: {{ .Values.global.namespace }}
name: {{ .Values.producer.name }}
labels:
app: {{ .Values.producer.name }}
annotations:
"helm.sh/hook": post-install,post-upgrade
"helm.sh/hook-weight": "-5"
spec:
type: {{ .Values.producer.serviceType }}
ports:
- port: {{ .Values.producer.port }}
targetPort: {{ .Values.producer.targetPort }}
selector:
app: {{ .Values.producer.name }}
---
apiVersion: apps/v1
kind: Deployment
metadata:
namespace: {{ .Values.global.namespace }}
name: {{ .Values.producer.name }}
annotations:
"helm.sh/hook": post-install,post-upgrade
"helm.sh/hook-weight": "-5"
spec:
replicas: {{ .Values.producer.replicas }}
selector:
matchLabels:
app: {{ .Values.producer.name }}
template:
metadata:
labels:
app: {{ .Values.producer.name }}
spec:
imagePullSecrets:
- name: harborsecret #对应创建私有镜像密钥Secret
containers:
- name: {{ .Values.producer.name }}
image: 172.51.216.85:8888/springcloud/{{ .Values.producer.name }}:2.0.0
imagePullPolicy: Always #如果省略imagePullPolicy,策略为IfNotPresent
ports:
- containerPort: {{ .Values.producer.targetPort }}
env:
- name: EUREKA_SERVER
value: "http://msa-eureka-0.msa-eureka.dev:10001/eureka/,http://msa-eureka-1.msa-eureka.dev:10001/eureka/,http://msa-eureka-2.msa-eureka.dev:10001/eureka/"
- name: ACTIVE
value: "-Dspring.profiles.active=k8s"
- name: DASHBOARD
value: "sentinel-server.dev.svc.cluster.local:8858"
[root@k8s-master test]# helm install msa cloud --dry-run --debug -n dev
# 安装
[root@k8s-master test]# helm install msa cloud -n dev
NAME: msa
LAST DEPLOYED: Fri Nov 12 11:36:58 2021
NAMESPACE: dev
STATUS: deployed
REVISION: 1
TEST SUITE: None
NOTES:
Spring Cloud!!!
[root@k8s-master test]# helm list -n dev
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
msa dev 1 2021-11-12 11:36:58.339808934 +0800 CST deployed cloud-0.5.0 1.0.5
# 检索已经发布的 release 的资源文件
[root@k8s-master test]# helm get manifest msa -n dev
[root@k8s-master test]# kubectl get all -n dev
NAME READY STATUS RESTARTS AGE
pod/msa-deploy-consumer-6b75cf55d-8mvcj 1/1 Running 0 4m19s
pod/msa-deploy-consumer-6b75cf55d-nbs2x 1/1 Running 0 4m19s
pod/msa-deploy-consumer-6b75cf55d-q9b98 1/1 Running 0 4m19s
pod/msa-deploy-producer-786f6dff44-4tn6h 0/1 ImagePullBackOff 0 4m18s
pod/msa-deploy-producer-786f6dff44-7wcbw 0/1 ImagePullBackOff 0 4m18s
pod/msa-deploy-producer-786f6dff44-b56r8 0/1 ImagePullBackOff 0 4m18s
pod/msa-eureka-0 1/1 Running 0 4m19s
pod/msa-eureka-1 1/1 Running 0 4m19s
pod/msa-eureka-2 1/1 Running 0 4m19s
pod/msa-gateway-597494c7f4-lkqnx 1/1 Running 0 4m19s
pod/msa-gateway-597494c7f4-ltfpp 1/1 Running 0 4m19s
pod/msa-gateway-597494c7f4-mnn7g 1/1 Running 0 4m19s
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/msa-deploy-consumer ClusterIP 10.105.146.252 <none> 8912/TCP 4m19s
service/msa-deploy-producer ClusterIP 10.101.112.240 <none> 8911/TCP 4m18s
service/msa-eureka NodePort 10.103.75.142 <none> 10001:30001/TCP 4m19s
service/msa-gateway NodePort 10.103.81.61 <none> 8888:30008/TCP 4m19s
NAME READY UP-TO-DATE AVAILABLE AGE
deployment.apps/msa-deploy-consumer 3/3 3 3 4m19s
deployment.apps/msa-deploy-producer 0/3 3 0 4m18s
deployment.apps/msa-gateway 3/3 3 3 4m19s
NAME DESIRED CURRENT READY AGE
replicaset.apps/msa-deploy-consumer-6b75cf55d 3 3 3 4m19s
replicaset.apps/msa-deploy-producer-786f6dff44 3 3 0 4m18s
replicaset.apps/msa-gateway-597494c7f4 3 3 3 4m19s
NAME READY AGE
statefulset.apps/msa-eureka 3/3 4m19s
# 卸载
[root@k8s-master test]# helm uninstall msa -n dev
release "msa" uninstalled
# Hook资源需要自己删除
[root@k8s-master test]# kubectl get all -n dev
NAME READY STATUS RESTARTS AGE
pod/msa-deploy-producer-786f6dff44-4tn6h 0/1 ImagePullBackOff 0 5m24s
pod/msa-deploy-producer-786f6dff44-7wcbw 0/1 ImagePullBackOff 0 5m24s
pod/msa-deploy-producer-786f6dff44-b56r8 0/1 ImagePullBackOff 0 5m24s
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/msa-deploy-producer ClusterIP 10.101.112.240 <none> 8911/TCP 5m24s
NAME READY UP-TO-DATE AVAILABLE AGE
deployment.apps/msa-deploy-producer 0/3 3 0 5m24s
NAME DESIRED CURRENT READY AGE
replicaset.apps/msa-deploy-producer-786f6dff44 3 3 0 5m24s
- Kubernetes
# Kubernetes
https://iothub.org.cn/docs/kubernetes/
https://iothub.org.cn/docs/kubernetes/advance/helm-operate/