openshift安装

快速搭建参考：
https://www.jianshu.com/p/676103f8a6ef?utm_campaign=maleskine&utm_content=note&utm_medium=seo_notes&utm_source=recommendation

关闭防火墙

启动
oc cluster up --skip-registry-check=true --public-hostname=192.168.0.2

--常见报错
https://morningspace.github.io/tech/openshift-v3-trap-and-pitfalls/

--Error response from daemon: Get https://172.30.1.1:5000/v2
解决方式：
echo '{ "insecure-registries":["192.168.0.2:5000"] }' > /etc/docker/daemon.json
systemctl restart docker

--20201214安装(openshift-origin-server-v3.9.0-191fece-linux-64bit.tar.gz)
1、无法安装docker（或者参考w3school的docker安装：sudo apt-get install -y docker.io）
https://stackoverflow.com/questions/57402923/docker-installation-on-linux-mint-19-2-doesnt-work
2、简单启动
sudo oc cluster up --skip-registry-check=true
3、默认用户名密码是dev
4、最终启动
sudo oc cluster up
--use-existing-config=true
--skip-registry-check=true
--host-config-dir='/home/jq/openshift/local/config'
--host-data-dir='/home/jq/openshift/local/data'
--host-pv-dir='/home/jq/openshift/local/pv'
--host-volumes-dir='/home/jq/openshift/local/volumes'
5、无法部署nginx
error: build error: Failed to push image: Get https://172.30.1.1:5000/v2/: http: server gave HTTP response to HTTPS client
https://blog.csdn.net/jinjiashui/article/details/106050139
6、nginx的访问地址（applications->routes）
http://172.30.197.63:8080/
http://nginx-aa.127.0.0.1.nip.io/

--给用户赋值管理员权限（自测未创建project前，可以用system:admin无密码登录赋管理员权限;否则,system:admin无法登录）
oc adm policy add-cluster-role-to-user cluster-admin jq
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查询有哪些模板
oc get templates -n openshift
导出模板
oc export template jws31-tomcat8-basic-s2i -n openshift -o json > jws31-tomcat8-basic-s2i.json
导入模板
oc create -f ./jws31-tomcat8-basic-s2i.json
http://v1.uncontained.io/playbooks/fundamentals/template_development_guide.html

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报错1：Reason: Error resolving ImageStreamTag redhat-openjdk18-openshift:1.4 in namespace openshift: imagestreams.image.openshift.io "redhat-openjdk18-openshift" not found
在以下界面搜索“redhat-openjdk18-openshift”
https://catalog.redhat.com/software/containers/search
执行
oc import-image redhat-openjdk-18/openjdk18-openshift --from=registry.access.redhat.com/redhat-openjdk-18/openjdk18-openshift --confirm
变更build的yml文件内容
redhat-openjdk18-openshift:1.4 => openjdk18-openshift:latest
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报错2：error: provided context directory does not exist: undertow-servlet
删掉这行 contextDir: undertow-servlet
--或者继续探索，未研究完
https://access.redhat.com/documentation/en-us/red_hat_jboss_middleware_for_openshift/3/html-single/red_hat_java_s2i_for_openshift/index
cp target/undertow-servlet.jar ocp/deployments/

3、执行命令案例
oc exec gcreportback-10-x49nt -- jstat -gcutil 1