1、創建registry服務器
(1)安裝需要的包
yum -y install podman httpd-tools
(2)創建registry目錄
mkdir -p /opt/registry/{auth,certs,data}
(3)生成registry服務器證書 注意文件名不能更改改成其他名字,registry pod啓動時會找不到
cd /opt/registry/certs
openssl req -newkey rsa:4096 -nodes -sha256 -keyout domain.key -x509 -days 365 -out domain.crt
(4)生成bcrpt格式的密碼
htpasswd -bBc /opt/registry/auth/htpasswd root Scwang18
(5)創建mirror-registry容器
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
(6)添加防火牆端口
firewall-cmd --add-port=5000/tcp --zone=internal --permanent
firewall-cmd --add-port=5000/tcp --zone=public --permanent
firewall-cmd --reload
(7)添加簽名簽名證書到受信證書列表
cp /opt/registry/certs/domain.crt /etc/pki/ca-trust/source/anchors/
update-ca-trust
(8)測試registry是否可用
curl -u root:xxxx -k https://registry.ipincloud.com:5000/v2/_catalog
2、修改pullsecret
在受限網絡安裝OCP,需要將私有鏡像registry的相關信息更新到pullsecret。
(1)從https://cloud.redhat.com/openshift/install/pull-secret下載pullsecret
cat << 'EOF' > /opt/registry/certs/pull-secret.txt
{"auths":{"cloud.openshift.com":{省略}}}
EOF
(2)將1步創建registry服務時使用的用戶名\密碼轉換成base64編碼的token
[root@misc certs]# echo -n 'root:Scwang18' | base64 -w0
cm9vdDpTY3dhbmcxOA==
[root@misc certs]#
(3)將pullsecret格式轉換成json,便於增加自己的私有registrt
cat ./pull-secret.txt | jq . > ./pull-secret.json
(4)將私有mirror registry添加到pull-secret.json
[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]#
3、同步ocp鏡像倉庫到私有registry
(1)設置registry環境變量
export OCP_RELEASE=4.3.0
export 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"
(2)開始鏡像
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
(3)同步完成後,記錄完成信息,在集羣中使用