1、创建registry服务器

（1）安装需要的包

<code>yum -y install podman httpd-tools/<code>

（2）创建registry目录

<code>mkdir -p /opt/registry/{auth,certs,data}/<code>

（3）生成registry服务器证书注意文件名不能更改改成其他名字，registry pod启动时会找不到

<code>cd /opt/registry/certsopenssl req -newkey rsa:4096 -nodes -sha256 -keyout domain.key -x509 -days 365 -out domain.crt/<code>

（4）生成bcrpt格式的密码

<code>htpasswd -bBc /opt/registry/auth/htpasswd root Scwang18/<code>

（5）创建mirror-registry容器

<code>podman run --name mirror-registry -p 5000:5000 \\     -v /opt/registry/data:/var/lib/registry:z \\     -v /opt/registry/auth:/auth:z \\     -e "REGISTRY_AUTH=htpasswd" \\     -e "REGISTRY_AUTH_HTPASSWD_REALM=Registry Realm" \\     -e REGISTRY_AUTH_HTPASSWD_PATH=/auth/htpasswd \\     -v /opt/registry/certs:/certs:z \\     -e REGISTRY_HTTP_TLS_CERTIFICATE=/certs/domain.crt \\     -e REGISTRY_HTTP_TLS_KEY=/certs/domain.key \\     -d docker.io/library/registry:2/<code>

（6）添加防火墙端口

<code>firewall-cmd --add-port=5000/tcp --zone=internal --permanent firewall-cmd --add-port=5000/tcp --zone=public   --permanent firewall-cmd --reload/<code>

（7）添加签名签名证书到受信证书列表

<code>cp /opt/registry/certs/domain.crt /etc/pki/ca-trust/source/anchors/update-ca-trust/<code>

（8）测试registry是否可用

<code>curl -u root:xxxx -k https://registry.ipincloud.com:5000/v2/_catalog/<code>

2、修改pullsecret

在受限网络安装OCP，需要将私有镜像registry的相关信息更新到pullsecret。

（1）从https://cloud.redhat.com/openshift/install/pull-secret下载pullsecret

<code>cat << 'EOF' > /opt/registry/certs/pull-secret.txt{"auths":{"cloud.openshift.com":{省略}}}EOF/<code>

（2）将1步创建registry服务时使用的用户名\\密码转换成base64编码的token

<code>[root@misc certs]# echo -n 'root:Scwang18' | base64 -w0cm9vdDpTY3dhbmcxOA==[root@misc certs]#/<code>

（3）将pullsecret格式转换成json，便于增加自己的私有registrt

<code>cat ./pull-secret.txt | jq .  > ./pull-secret.json/<code>

（4）将私有mirror registry添加到pull-secret.json

<code>[root@misc certs]# cat pull-secret.json{  "auths": {    "cloud.openshift.com": {            "auth": "省略",      "email": "省略"    },    "quay.io": {            "auth": "省略",      "email": "省略"    },    "registry.connect.redhat.com": {      "auth": "省略",      "email": "省略"    },    "registry.redhat.io": {      "auth": "省略",      "email": "[email protected]"    },    "registry.ipincloud.com:5000": {      "auth": "cm9vdDpTY3dhbmcxOA==",      "email": "[email protected]"    }  }}[root@misc certs]#/<code>

3、同步ocp镜像仓库到私有registry

（1）设置registry环境变量

<code>export OCP_RELEASE=4.3.0export LOCAL_REGISTRY='registry.ipincloud.com:5000' export LOCAL_REPOSITORY='ocp4/openshift4' export PRODUCT_REPO='openshift-release-dev' export LOCAL_SECRET_JSON='/opt/registry/certs/pull-secret.json' export RELEASE_NAME="ocp-release" /<code>

（2）开始镜像

<code>oc adm release mirror -a ${LOCAL_SECRET_JSON} \\     --from=quay.io/${PRODUCT_REPO}/${RELEASE_NAME}:${OCP_RELEASE}-x86_64 \\     --to=${LOCAL_REGISTRY}/${LOCAL_REPOSITORY} \\     --to-release-image=${LOCAL_REGISTRY}/${LOCAL_REPOSITORY}:${OCP_RELEASE}     oc adm release mirror -a /opt/registry/certs/pull-secret.json --from=quay.io/openshift-release-dev/ocp-release:4.3.0-x86_64 --to-release-image=registry.ipincloud.com:5000/ocp4/openshift4:4.3.0 --to=registry.ipincloud.com:5000/ocp4/openshift4     /<code>

（3）同步完成后，记录完成信息，在集群中使用