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openshift 4.3 helm

本文讲述，如何在openshift 4.3 上演示helm功能

video

参考资料：

https://docs.openshift.com/container-platform/4.3/cli_reference/helm_cli/getting-started-with-helm-on-openshift-container-platform.html

https://chartmuseum.com/docs/#installing-chartsinto-kubernetes

https://whmzsu.github.io/helm-doc-zh-cn/chart/chart_repository-zh_cn.html

操作步骤


        # 环境准备
        
        skopeo copy docker://docker.io/gogs/gogs docker://registry.redhat.ren:5443/docker.io/gogs/gogs
        
        skopeo copy docker://docker.io/chartmuseum/chartmuseum:latest docker://registry.redhat.ren:5443/docker.io/chartmuseum/chartmuseum:latest
        
        skopeo copy docker://docker.io/ananwaresystems/webarchive:1.0 docker://registry.redhat.ren:5443/docker.io/ananwaresystems/webarchive:1.0
        
        skopeo copy docker://docker.io/tomcat:7.0 docker://registry.redhat.ren:5443/docker.io/tomcat:7.0 
        
        # https://github.com/helm/charts/tree/master/stable/chartmuseum
        
        # 运行一个helm chart repository
        
        mkdir -p /data/ocp4/helm/charts
        
        podman run --rm -it \
          -p 18080:8080 \
          -v /data/ocp4/helm/charts:/charts:Z \
          -e DEBUG=true \
          -e STORAGE=local \
          -e STORAGE_LOCAL_ROOTDIR=/charts \
          --privileged \
          registry.redhat.ren:5443/docker.io/chartmuseum/chartmuseum:latest
        
        # 准备 helm 客户端
        
        curl -L https://mirror.openshift.com/pub/openshift-v4/clients/helm/latest/helm-linux-amd64 -o /usr/local/bin/helm
        
        chmod +x /usr/local/bin/helm
        
        helm version
        
        helm repo add chartmuseum http://localhost:18080
        helm repo list
        
        # 编译一个helm chart, 并上传 chart repository
        
        cd /data/ocp4/helm/tomcat
        helm lint
        helm package .
        curl --data-binary "@tomcat-0.4.1.tgz" http://localhost:18080/api/charts
        helm repo update
        helm search repo
        
        # 通过 helm chart 创建 tomcat deploy
        
        oc project demo
        helm install example-tomcat chartmuseum/tomcat
        helm list
        
        # 恢复环境
        
        helm uninstall example-tomcat
        helm repo remove chartmuseum
        
        /bin/rm -f /data/ocp4/helm/charts/*