系統配置： CentOS 7 內核 3.10.0-229.20.1.el7.x86_64 ， Docker version 1.8.2
運行 docker registry
執行下列命令：
復制代碼 代碼如下:
docker run / -d / --name private_registry --restart=always / -e SETTINGS_FLAVOUR=dev / -e STORAGE_PATH=/registry-storage / -v /data/docker/private-registry/storage:/registry-storage / -u root / -p 5000:5000 / registry:2
如果本地已有registry鏡像，它會直接運行，否則它會到docker hub共有倉庫下載之后再運行， -v /data/docker/private-registry/storage:/registry-storage 該命令將之后私有倉庫的鏡像存放到本地。
之后執行：
復制代碼 代碼如下:
docker tag docker.io/docker:1.8 192.168.100.9:5000/docker:1.8 docker push 192.168.100.9:5000/docker:1.8
這時會報很多錯誤：
復制代碼 代碼如下:
FATA[0000] Error response from daemon: v1 ping attempt failed with error: Get https://192.168.100.9:5000/v1/_ping: tls: oversized record received with length 20527/. If this private registry supports only HTTP or HTTPS with an unknown CA certificate,please add `--insecure-registry 192.168.100.9:5000` to the daemon's arguments. In the case of HTTPS, if you have access to the registry's CA certificate, no need for the flag; simply place the CA certificate at /etc/docker/certs.d/192.168.100.9:5000/ca.crt
最簡單的解決方法是修改 /etc/sysconfig/docker 文件添加 INSECURE_REGISTRY='--insecure-registry 192.168.100.9:5000' , Ubuntu 14.04 的配置文件在 /etc/default/docker 在該文件里添加 DOCKER_OPTS="--insecure-registry 192.168.100.9:5000" ，添加過之后重啟 docker ,重新運行 docker registry 即可生效。這樣做的缺點是你的私有倉庫不安全，其次，其他要下載或者上傳鏡像的機器都要修改相應的配置文件。
安全的做法是去認證機構購買簽名證書，在此我們使用自認證的方式。
自簽名認證
首先執行：
復制代碼 代碼如下:
# mkdir -p certs && openssl req / -newkey rsa:4096 -nodes -sha256 -keyout certs/domain.key / -x509 -days 365 -out certs/domain.crt Country Name (2 letter code) [AU]:CN State or Province Name (full name) [Some-State]:Beijing Locality Name (eg, city) []:Beijing Organization Name (eg, company) [Internet Widgits Pty Ltd]:SERCXTYF Organizational Unit Name (eg, section) []:IT Common Name (e.g. server FQDN or YOUR name) []:192.168.100.9:5000 Email Address []:xxx.yyy@ymail.com
生成認證證書和密鑰。接下來將剛生成的 certs/domain.crt 復制到 /etc/docker/certs.d/192.168.100.9:5000/ca.crt ，之后重啟 docker 并運行：
復制代碼 代碼如下:
docker run / -d / --name private_registry --restart=always / -e SETTINGS_FLAVOUR=dev / -e STORAGE_PATH=/registry-storage / -v /data/docker/private-registry/storage:/registry-storage / -u root / -p 5000:5000 / -v /root/certs:/certs / -e REGISTRY_HTTP_TLS_CERTIFICATE=/certs/domain.crt / -e REGISTRY_HTTP_TLS_KEY=/certs/domain.key / registry:2
這樣之后應該可以成功了吧，于是執行：
# docker push 192.168.100.9:5000/docker:1.8
結果它還是報錯了：
復制代碼 代碼如下:
The push refers to a repository 192.168.100.9:5000/docker:1.8 unable to ping registry endpoint https://192.168.100.9:5000/v0/ v2 ping attempt failed with error: Get https://192.168.100.9:5000/v2/: x509: cannot validate certificate for 192.168.100.9 because it doesn't contain any IP SANs v1 ping attempt failed with error: Get https://192.168.100.9:5000/v1/_ping: x509: cannot validate certificate for 192.168.100.9 because it doesn't contain any IP SANs
解決方法：修改 /etc/pki/tls/openssl.cnf 配置，在該文件中找到 [ v3_ca ] ，在它下面添加如下內容：
復制代碼 代碼如下:
[ v3_ca ] # Extensions for a typical CA subjectAltName = IP:123.56.157.144
之后再次重啟docker,并重新 run registry ，啟動成功之后，執行：
復制代碼 代碼如下:
# docker push 192.168.100.9:5000/docker:1.8 The push refers to a repository [192.168.100.9:5000/docker] (len: 1) 793ab2f3d322: Pushed e1232be51d09: Pushed 71ef33d4e0e5: Pushed e9d235d200dc: Pushed 3fb9a265fbfc: Pushed 9f50b4b1f00b: Pushed 413668359dd0: Pushed da0daae25b21: Pushed f4fddc471ec2: Pushed 1.8: digest: sha256:28a02a8a50b750a300904b53e802bdf76516d591b2d233ae21cf771b8c776d44 size: 17621
至此，上傳終于成功。換臺機器下載剛上傳的鏡像：
復制代碼 代碼如下:
# docker pull 192.168.100.9:5000/docker:1.8 Trying to pull repository 192.168.100.9:5000/docker ... failed unable to ping registry endpoint https://192.168.100.9:5000/v0/ v2 ping attempt failed with error: Get https://192.168.100.9:5000/v2/: x509: certificate signed by unknown authority v1 ping attempt failed with error: Get https://192.168.100.9:5000/v1/_ping: x509: certificate signed by unknown authority
仔細分析錯誤信息，發現是沒有證書，將在 192.168.100.9 上生成的證書拷貝到相應的目錄下 /etc/docker/certs.d/192.168.100.9:5000/ca.crt ，拷貝之后重啟 docker ，再次執行:
復制代碼 代碼如下:
# docker pull 192.168.100.9:5000/docker:1.8 1.8: Pulling from docker 9d58b928bc15: Pull complete dbe7e8a7807c: Pull complete ce14982b73d4: Pull complete b9f70905d763: Pull complete b9c93a2fb3cf: Pull complete 1321a4d5d3ea: Pull complete 5941048a7e27: Pull complete f57edf7c2e71: Pull complete 5de2ade00f1b: Pull complete Digest: sha256:28a02a8a50b750a300904b53e802bdf76516d591b2d233ae21cf771b8c776d44 Status: Downloaded newer image for 192.168.100.9:5000/docker:1.8
至此， docker registry 私有倉庫安裝成功。如果要部署到生產環境還需要進一步的配置，具體可以參考Registry Configuration Reference。
以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持VEVB武林網。
