在线时间:8:00-16:00
迪恩网络APP
随时随地掌握行业动态
扫描二维码
关注迪恩网络微信公众号
一:Docker私有仓库安装 1、 下载镜像是有镜像仓库: [root@localhost ~]# systemctl start docker #如果已经有镜像了,强制删除原来的镜像的方式如下: [root@xxx-pub /]# docker rmi -f docker.io/registry Untagged: docker.io/registry:latest Untagged: docker.io/registry@sha256:51bb55f23ef7e25ac9b8313b139a8dd45baa832943c8ad8f7da2ddad6355b3c8 [root@xxx-pub /]# #开始下载最新的镜像。 [root@localhost ~]# docker pull registry Using default tag: latest latest: Pulling from library/registry 4064ffdc82fe: Pull complete c12c92d1c5a2: Pull complete 4fbc9b6835cc: Pull complete 765973b0f65f: Pull complete 3968771a7c3a: Pull complete Digest: sha256:20bbbc0f6384cf7dc6e292ccbe75935b73c92ec776543c970904bc60feceb129 Status: Downloaded newer image for registry:latest [root@localhost ~]# 2、 启动并且挂载镜像仓库到本地磁盘: [root@xxx-pub /]# docker run -d -v /registry:/home/docker-registry -p 5000:5000 --restart=always --privileged=true --name registry registry:latest Unable to find image 'registry:latest' locally Trying to pull repository docker.io/library/registry ... latest: Pulling from docker.io/library/registry Digest: sha256:51bb55f23ef7e25ac9b8313b139a8dd45baa832943c8ad8f7da2ddad6355b3c8 Status: Downloaded newer image for docker.io/registry:latest b7bd2b14ed488936afe798be95f3cd56f604fb092d45cf6f4a58359bcad0d34c [root@xxx-pub /]#
为了持久化数据,将volume挂载到/home/docker-registry 3、 我们给一个本地镜像打个标签然后上传: 查看本地有哪些镜像: [root@xxx-pub /]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE docker.io/centos centos7.5.1804 fdf13fa91c6e 4 weeks ago 200 MB docker.io/registry latest b2b03e9146e1 2 months ago 33.3 MB [root@xxx-pub /]# 以docker.io/centos为案例。 [root@xxx-pub /]# docker tag fdf13fa91c6e localhost:5000/xxx-centos7.5.1804:1.0 ##localhost:5000表示仓库地址,fdf13fa91c6e表示images id,xxx-centos7.5.1804表示镜像名称,1.0表示版本号。 或: [root@xxx-pub /]# docker tag docker.io/centos:centos7.5.1804 localhost:5000/xxx-centos7.5.1804:1.0 4、 直接上传: [root@xxx-pub /]# docker push localhost:5000/xxx-centos7.5.1804:1.0 The push refers to a repository [localhost:5000/xxx-centos7.5.1804] bcc97fbfc9e1: Pushed 1.0: digest: sha256:7c14180942615fef85cb5c8b1388e028be1a8f79694a5fa30a4025173e42ad61 size: 529 [root@xxx-pub /]# 在PUSH的过程中可能报类似如下的错误(以下是网络上的错误提示): [root@localhost ~]# docker push 192.168.174.128:5000/hello:latest The push refers to a repository [192.168.174.128:5000/hello] unable to ping registry endpoint https://192.168.174.128:5000/v0/ v2 ping attempt failed with error: Get https://192.168.174.128:5000/v2/: http: server gave HTTP response to HTTPS client v1 ping attempt failed with error: Get https://192.168.174.128:5000/v1/_ping: http: server gave HTTP response to HTTPS client [root@localhost ~]# 解决办法: 使用的是https,修改/etc/sysconfig/docker(这里是Centos7下的docker)文件,加上ADD_REGISTRY='–add-registry 192.168.18.162:5000',INSECURE_REGISTRY='–insecure-registry 192.168.18.162:5000' (上面是历史的docker版本的配置),如下图: 但是在新的docker容器仓库的配置中,自己的docker容器中的配置采用(这里在docker registry和另外pull镜像的机器上都指定如下的配置): 指定完成之后,要重启docker,重启的配置如下: [root@youx-pub volumes]# systemctl restart docker 另外:查看一下docker.service,查看一下配置文件: [root@youx-pub registry]find / -name docker.service /sys/fs/cgroup/memory/system.slice/docker.service /sys/fs/cgroup/devices/system.slice/docker.service /sys/fs/cgroup/blkio/system.slice/docker.service /sys/fs/cgroup/cpu,cpuacct/system.slice/docker.service /sys/fs/cgroup/pids/system.slice/docker.service /sys/fs/cgroup/systemd/system.slice/docker.service /usr/lib/systemd/system/docker.service [root@youx-pub registry]# vim /usr/lib/systemd/system/docker.service 然后执行一下: #因为可以用于systemctl启动的docker.service文件变化了,所以得执行以下配置。然后执行docker的重启工作 systemctl daemon-reload systemctl restart docker 如果还是报如下错误: [root@youx-pub registry]# docker push 192.168.18.162:5000/nginx:1.2 The push refers to a repository [192.168.18.162:5000/nginx] Get https://192.168.18.162:5000/v1/_ping: http: server gave HTTP response to HTTPS client [root@youx-pub registry]# 解决办法是: 在/etc/docker下创建daemon.json,内容是: {"insecure-registries":["192.168.18.162:5000"]} 然后再重启docker容器: [root@youx-pub volumes]# systemctl restart docker 5、 上传完成,我们可以查看一下挂载目录是否有镜像: [root@xxx-pub docker-registry]# pwd /home/docker-registry [root@xxx-pub docker-registry] # ls /registry/ Docker 6、 关于本地镜像的查看: [root@xxx-pub docker-registry]# curl http://192.168.18.162:5000/v2/_catalog {"repositories":["xxx-centos7.5.1804","xxx-centos7.5.1804-v1.0"]} [root@xxx-pub docker-registry]# 7、 看到有两个镜像,我们要获取他的标签信息以便下载呢: [root@xxx-pub docker-registry]# curl http://192.168.18.162:5000/v2/xxx-centos7.5.1804/tags/list {"name":"xxx-centos7.5.1804","tags":["1.0"]} [root@xxx-pub docker-registry]# 8、 然后我们直接下载镜像(到另电脑上): [root@bigdata2 ~]# docker pull 192.168.18.162:5000/youx-centos7.5.1804:1.0 Using default tag: latest Trying to pull repository 192.168.18.162/youx-centos7.5.1804 ... Get https://192.168.18.162/v1/_ping: dial tcp 192.168.18.162:443: getsockopt: no route to host [root@bigdata2 ~]# 如果出现上面的情况,解决办法是: 编译: [root@youx-pub volumes]# vim /etc/containers/registries.conf 这个文件。 旧的是编辑:/etc/sysconfig/docker 这个文件 然后重启docker [root@youx-pub volumes]# systemctl restart docker 然后发现可以pull了 #要注意的是,这里的地址是:仓库地址:仓库端口号/REPOSITORY:TAG [root@bigdata2 ~]# docker pull 192.168.18.162:5000/youx-centos7.5.1804:1.0 如果还不行,需要修改/etc/docker/daemon.json,内容如下: [root@bigdata2 docker]# cat daemon.json {"insecure-registries":["192.168.18.162:5000"]} 二、从另外一台机器上上传镜像到docker镜像仓库: [root@bigdata2 ~]# docker tag centos7-jdk8-nginx:1.0 192.168.18.162:5000/centos7-jdk8-nginx:1.0 [root@bigdata2 ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE 192.168.18.162:5000/centos7-jdk8-nginx 1.0 bcacd65e2a2e 2 minutes ago 2.18 GB [root@bigdata2 ~]# docker push 192.168.18.162:5000/centos7-jdk8-nginx:1.0 The push refers to a repository [192.168.18.162:5000/centos7-jdk8-nginx] f018e9c38a66: Pushed 2a47dcd341ef: Pushed c5dea3bc729a: Pushed bcc97fbfc9e1: Pushed 1.0: digest: sha256:d907ff2f8eb590209700c01ce85c78d0bc778a4238539d747e4667d68cb52102 size: 1163 [root@bigdata2 ~]# 然后进入docker镜像仓库所在位置: [root@youx-pub registry]# curl http://192.168.18.162:5000/v2/_catalog {"repositories":["centos7-jdk8-nginx","nginx"]} [root@youx-pub registry]# curl http://192.168.18.162:5000/v2/centos7-jdk8-nginx/tags/list {"name":"centos7-jdk8-nginx","tags":["1.0"]} [root@youx-pub registry]# 三、本地镜像如何删除,正常是不提供删除功能的,所以使用第三方的插件来进行删除 插件github上的位置: 1、下载资源 [root@master registry]# curl https://raw.githubusercontent.com/burnettk/delete-docker-registry-image/master/delete_docker_registry_image.py | sudo tee /usr/local/bin/delete_docker_registry_image >/dev/null sudo chmod a+x /usr/local/bin/delete_docker_registry_image 2、 设置相关环节变量: 查找REGISTRY_DATA_DIR,命令: [root@youx-pub registry]# find / -name registry [root@youx-pub registry]# find / -name registry /var/lib/docker/overlay2/d72320cd67b42f7ae66342cc6dedab7abe5e89106de8c4919ec8c5a6e5940b09/diff/var/lib/ucf/registry /var/lib/docker/overlay2/92211417089f7be8239def550e1e89ce3f0e50ac57f2c36ba723ca312ea06ae3/diff/bin/registry /var/lib/docker/overlay2/c1716aea0b380eb94ead9aa02552769acd4c3dac8e6dab735997f1709ce79a33/diff/etc/docker/registry /var/lib/docker/overlay2/46f719f01255c431b4343e78607341d6d66ea482bc6d03c3b4e05e7413f46be6/diff/var/lib/registry /var/lib/docker/overlay2/46f719f01255c431b4343e78607341d6d66ea482bc6d03c3b4e05e7413f46be6/merged/bin/registry /var/lib/docker/overlay2/46f719f01255c431b4343e78607341d6d66ea482bc6d03c3b4e05e7413f46be6/merged/etc/docker/registry /var/lib/docker/overlay2/46f719f01255c431b4343e78607341d6d66ea482bc6d03c3b4e05e7413f46be6/merged/var/lib/registry /var/lib/docker/volumes/1522d54c954c755250cb71686cacd9714cd3d0f0c706ec18c1e490c7881fe713/_data/docker/registry /opt/data/registry /registry [root@youx-pub registry]# 发现 [root@youx-pub repositories]# pwd /var/lib/docker/volumes/1522d54c954c755250cb71686cacd9714cd3d0f0c706ec18c1e490c7881fe713/_data/docker/registry/v2/repositories [root@youx-pub repositories]# ls centos7-jdk8-nginx nginx [root@youx-pub repositories]# 所以设置镜像仓库的位置为: [root@master registry]# export REGISTRY_DATA_DIR=/var/lib/docker/volumes/1522d54c954c755250cb71686cacd9714cd3d0f0c706ec18c1e490c7881fe713/_data/docker/registry/v2 地址就是咱们挂载地址: 看一下相关标签: [root@youx-pub registry]# curl http://192.168.18.162:5000/v2/_catalog {"repositories":["youx-centos7.5.1804","youx-centos7.5.1804-v1.0"]} [root@youx-pub registry]# curl http://192.168.18.162:5000/v2/youx-centos7.5.1804-v1.0/tags/list {"name":"youx-centos7.5.1804-v1.0","tags":["latest"]} [root@youx-pub registry]# 可以之后我们直接删除: [root@master registry]# delete_docker_registry_image --image youx-centos7.5.1804-v1.0:latest INFO [2017-04-08 11:39:39,793] Deleting /registry/docker/registry/v2/repositories/nginx/_manifests/tags/v1 [root@master registry]# curl http://192.168.18.162:5000/v2/_catalog {"repositories":["youx-centos7.5.1804"]} 以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持极客世界。 |
2022-08-17
2022-11-06
2022-07-18
2022-08-17
2022-07-29
请发表评论