文章目录
- 1、构建一个Helm Chart
- 2、把打包好的helm包上传仓库
-
- 2.1 配置仓库
- 2.2 仓库拉取helm
- 2.3 增加v2版本（ingress）
- 2.4 回滚更新
- 3、部署metrices-server
-
- 3.1 拉取metrics-server包，修改values.yaml文件
- 3.2 拉取镜像
- 3.3 清理之前的metrices环境
- 3.4 安装
- 3.5 修改corndns
- 4、部署kubeapps（webUI）
-
- 4.1 拉取kubeapps包，修改values.yaml文件
- 4.2 下载所需镜像并上传仓库
- 4.3 安装kubeapps,授权，获取密钥登陆web后台
1、构建一个Helm Chart
检查依赖和模板配置是否正确
[[email protected] helm]# helm lint mychart #检查依赖和模板配置是否正确
==> Linting mychart
Error unable to check Chart.yaml file in chart: stat mychart/Chart.yaml: no such file or directory
Error: 1 chart(s) linted, 1 chart(s) failed
创建 mychart
[[email protected] helm]# helm create mychart
Creating mychart
[[email protected] helm]# tree mychart/
-bash: tree: command not found
[[email protected] helm]# yum install -y tree
[[email protected] helm]# tree mychart/
mychart/
├── charts
├── Chart.yaml
├── templates
│ ├── deployment.yaml
│ ├── _helpers.tpl
│ ├── hpa.yaml
│ ├── ingress.yaml
│ ├── NOTES.txt
│ ├── serviceaccount.yaml
│ ├── service.yaml
│ └── tests
│ └── test-connection.yaml
└── values.yaml
编辑清单文件
[[email protected] mychart]# vim Chart.yaml
[[email protected] mychart]# vim values.yaml
[[email protected] ~]# cd helm/
[[email protected] helm]# helm lint mychart/ ##检查语法错误
==> Linting mychart/
[INFO] Chart.yaml: icon is recommended
1 chart(s) linted, 0 chart(s) failed
[[email protected] helm]# helm package mychart/ ##打包
Successfully packaged chart and saved it to: /root/helm/mychart-0.1.0.tgz
helm install demo mychart-0.1.0.tgz ## 安装
helm upgrade demo mychart-0.1.0.tgz --set replicaCount=2
vim Chart.yaml
vim values.yaml
打包
安装
查看信息
2、把打包好的helm包上传仓库
2.1 配置仓库
安装push包
[[email protected] ~]# mkdir -p /root/.local/share/helm/plugins
[[email protected] ~]# cd /root/.local/share/helm/plugins
[[email protected] plugins]# mkdir push
[[email protected] plugins]# cd push/
[[email protected] push]# cd
[[email protected] ~]# tar zxf helm-push_0.9.0_linux_amd64.tar.gz -C /root/.local/share/helm/plugins/push/
查看push帮助
[[email protected] ~]# helm push --help
把加密证书放到全局生效目录下并更新
[[email protected] ~]# cp /etc/docker/certs.d/reg.westos.org/ca.crt /etc/pki/ca-trust/source/anchors/
[[email protected] ~]# update-ca-trust
查看是否添加仓库成功
[[email protected] helm]# helm repo add westos https://reg.westos.org/chartrepo/charts
[[email protected] helm]# helm repo list
NAME URL
bitnami https://charts.bitnami.com/bitnami
westos https://reg.westos.org/chartrepo/charts
上传至仓库
[[email protected] helm]# helm push mychart-0.1.0.tgz westos --insecure -u admin -p Harbor12345
Pushing mychart-0.1.0.tgz to westos...
Done.
2.2 仓库拉取helm
[[email protected] ~]# helm install demo westos/mychart --set replicaCount=3
NAME: demo
LAST DEPLOYED: Fri Mar 5 10:40:15 2021
NAMESPACE: default
STATUS: deployed
REVISION: 1
NOTES:
1. Get the application URL by running these commands:
export POD_NAME=$(kubectl get pods --namespace default -l "app.kubernetes.io/name=mychart,app.kubernetes.io/instance=demo" -o jsonpath="{.items[0].metadata.name}")
export CONTAINER_PORT=$(kubectl get pod --namespace default $POD_NAME -o jsonpath="{.spec.containers[0].ports[0].containerPort}")
echo "Visit http://127.0.0.1:8080 to use your application"
kubectl --namespace default port-forward $POD_NAME 8080:$CONTAINER_PORT
测试负载均衡：
2.3 增加v2版本（ingress）
[[email protected] mychart]# pwd
/root/helm/mychart
[[email protected] mychart]# vim values.yaml
[[email protected] mychart]# vim Chart.yaml
[[email protected] helm]# helm package mychart
Successfully packaged chart and saved it to: /root/helm/mychart-0.2.0.tgz
[[email protected] helm]# helm push mychart-0.2.0.tgz westos --insecure -u admin -p Harbor12345
Pushing mychart-0.2.0.tgz to westos...
Done.
[[email protected] helm]# helm repo update
Hang tight while we grab the latest from your chart repositories...
...Successfully got an update from the "westos" chart repository
...Successfully got an update from the "bitnami" chart repository
Update Complete. ⎈Happy Helming!⎈
[[email protected] helm]# helm search repo mychart -l
NAME CHART VERSION APP VERSION DESCRIPTION
westos/mychart 0.2.0 v2 A Helm chart for Kubernetes
westos/mychart 0.1.0 v1 A Helm chart for Kubernetes
[[email protected] helm]# helm upgrade demo westos/mychart
W0305 10:58:52.982744 19349 warnings.go:67] networking.k8s.io/v1beta1 Ingress is deprecated in v1.19+, unavailable in v1.22+; use networking.k8s.io/v1 Ingress
W0305 10:58:53.053866 19349 warnings.go:67] networking.k8s.io/v1beta1 Ingress is deprecated in v1.19+, unavailable in v1.22+; use networking.k8s.io/v1 Ingress
W0305 10:58:53.113347 19349 warnings.go:67] networking.k8s.io/v1beta1 Ingress is deprecated in v1.19+, unavailable in v1.22+; use networking.k8s.io/v1 Ingress
Release "demo" has been upgraded. Happy Helming!
NAME: demo
LAST DEPLOYED: Fri Mar 5 10:58:52 2021
NAMESPACE: default
STATUS: deployed
REVISION: 2
NOTES:
1. Get the application URL by running these commands:
http://demo.westos.org/
kubectl -n ingress-nginx get all ## 查看ingress对应的nodeIP
vim values.yaml
vim Chart.yaml
查看ingress对应的nodeIP
测试：
2.4 回滚更新
[[email protected] helm]# helm history demo
REVISION UPDATED STATUS CHART APP VERSION DESCRIPTION
1 Fri Mar 5 10:42:08 2021 superseded mychart-0.1.0 v1 Install complete
2 Fri Mar 5 10:58:52 2021 deployed mychart-0.2.0 v2 Upgrade complete
[[email protected] helm]# helm rollback demo 1
W0305 11:58:54.397943 2642 warnings.go:67] networking.k8s.io/v1beta1 Ingress is deprecated in v1.19+, unavailable in v1.22+; use networking.k8s.io/v1 Ingress
W0305 11:58:54.403883 2642 warnings.go:67] networking.k8s.io/v1beta1 Ingress is deprecated in v1.19+, unavailable in v1.22+; use networking.k8s.io/v1 Ingress
Rollback was a success! Happy Helming!
3、部署metrices-server
1.拉取metrics-server包，修改values.yaml文件
[[email protected] helm]# helm pull bitnami/metrics-server
[[email protected] helm]# tar zxf metrics-server-5.6.0.tgz
[[email protected] helm]# ls
helm-v3.4.1-linux-amd64.tar.gz metrics-server-5.6.0.tgz mychart-0.2.0.tgz
linux-amd64 mychart redis-ha
metrics-server mychart-0.1.0.tgz redis-ha-4.12.9.tgz
[[email protected] helm]# cd metrics-server/
[[email protected] metrics-server]# ls
Chart.lock charts Chart.yaml ci README.md templates values.yaml
[[email protected] kubeapps]# vim values.yaml ##修改values.yaml文件
2. 拉取镜像
[[email protected] harbor]# docker pull bitnami/metrics-server:0.4.2-debian-10-r0
[[email protected] harbor]# docker tag bitnami/metrics-server:0.4.2-debian-10-r0 reg.westos.org/bitnami/metrics-server:0.4.2-debian-10-r0
[[email protected] harbor]# docker push reg.westos.org/bitnami/metrics-server:0.4.2-debian-10-r0
3. 清理之前的metrices环境
[[email protected] metrics-server]# cd
[[email protected] ~]# cd metric-server/
[[email protected] metric-server]# ls
components.yaml
[[email protected] metric-server]# kubectl delete -f components.yaml
serviceaccount "metrics-server" deleted
clusterrole.rbac.authorization.k8s.io "system:aggregated-metrics-reader" deleted
clusterrole.rbac.authorization.k8s.io "system:metrics-server" deleted
rolebinding.rbac.authorization.k8s.io "metrics-server-auth-reader" deleted
clusterrolebinding.rbac.authorization.k8s.io "metrics-server:system:auth-delegator" deleted
clusterrolebinding.rbac.authorization.k8s.io "system:metrics-server" deleted
service "metrics-server" deleted
deployment.apps "metrics-server" deleted
apiservice.apiregistration.k8s.io "v1beta1.metrics.k8s.io" deleted
4. 安装
[[email protected] metric-server]# kubectl create namespace metrics-server
namespace/metrics-server created
[[email protected] metrics-server]# helm install metrics-server . -n metrics-server
## 此时pod起不来，原因是无法解析节点
5.修改corndns
[[email protected] metrics-server]# kubectl -n kube-system edit cm coredns
configmap/coredns edited
[[email protected] metrics-server]# kubectl -n kube-system get pod | grep coredns | awk "[[email protected] metrics-server]# kubectl -n kube-s[r[r[r[r[[email protected] metrics-server]# kubectl -n kube-system get pod | grep coredns | awk '{system("kubectl -n kube-system delete pod "$1"")}'
pod "coredns-7f89b7bc75-ddlmc" deleted
pod "coredns-7f89b7bc75-f5dww" deleted
6. pod成功起来
[[email protected] metrics-server]# kubectl -n metrics-server get pod
NAME READY STATUS RESTARTS AGE
metrics-server-777f7bd69b-pc6lf 1/1 Running 7 10m
3.1 拉取metrics-server包，修改values.yaml文件
3.2 拉取镜像
3.3 清理之前的metrices环境
3.4 安装
3.5 修改corndns
4、部署kubeapps（webUI）
1.拉取kubeapps包，修改values.yaml文件
[[email protected] helm]# helm pull bitnami/kubeapps
[[email protected] helm]# tar zxf kubeapps-5.2.2.tgz
[[email protected] helm]# cd kubeapps/
[[email protected] kubeapps]# ls
Chart.lock Chart.yaml README.md values.schema.json
charts crds templates values.yaml
[[email protected] kubeapps]# vim values.yaml
2.下载所需镜像并上传仓库
[[email protected] ~]# docker load -i kubeapps-2.2.1.tar
[[email protected] ~]# docker images | grep reg.westos.org/bitnami | awk '{system("docker push "$1":"$2"")}'
## 上传
3.安装kubeapps
[[email protected] kubeapps]# helm install kubeapps . -n kubeapps
4.授权
[[email protected] kubeapps]# kubectl create serviceaccount kubeapps-operator -n kubeapps
[[email protected] kubeapps]# kubectl create clusterrolebinding kubeapps-operator --clusterrole=cluster-admin --serviceaccount=kubeapps:kubeapps-operator
5.获取token密钥登陆
[[email protected] kubeapps]# kubectl -n kubeapps get sa
[[email protected] kubeapps]# kubectl -n kubeapps describe sa kubeapps-operator
[[email protected] kubeapps]# kubectl -n kubeapps describe secrets
[[email protected] kubeapps]# kubectl -n kubeapps describe secrets kubeapps-operator-token-2lds6
4.1 拉取kubeapps包，修改values.yaml文件
4.2 下载所需镜像并上传仓库
4.3 安装kubeapps,授权，获取密钥登陆web后台
安装后使用token登陆，浏览器用域名登陆（要给真机做解析）