Nexus 学习记录 3 - Docker私有仓库

注意点: 如果仓库的功能是拉取镜像，那么允许匿名;如果是上传镜像,那么不允许匿名。

1. 创建proxy仓库

• 设置名称

• 可以匿名访问，不打勾

• 支持API V1

• 配置远程仓库

• 选择存储blob，如没有，新建一个

2. 创建hosted仓库

• 设置名称

• 设置端口及不允许匿名访问

• 支持API V1，与proxy同
• 选择存储blob，与proxy同
• 上传策略

3. 创建group仓库

• 设置名称，端口

• 可以匿名、不打勾，与proxy同
• 支持API V1,与proxy同
• 选择存储blob，与proxy同

4. 客户端

• 配置

# registry-mirrors 配置docker加速器
# insecure-registries 配置私有镜像

[[e-mail] ~]# cat /etc/docker/daemon.json 
{"registry-mirrors":["http://r123m:8004"],"insecure-registries":["r123m:8003"]}

• 重启docker

[[e-mail] ~]# systemctl daemon-reload
[[e-mail] ~]# systemctl restart docker.service

5. 测试拉取镜像

• 测试拉取镜像，在拉取的过程中，不仅将镜像拉取到本地，也将在nexus中存储一份

[[e-mail] ~]# docker image pull hello-world
Using default tag: latest
latest: Pulling from library/hello-world
0e03bdcc26d7: Pull complete 
Digest: sha256:90659bf80b44ce6be8234e6ff90a1ac34acbeb826903b02cfa0da11c82cbc042
Status: Downloaded newer image for hello-world:latest
docker.io/library/hello-world:latest

• 检查nexus是否有该镜像

6. 测试上传镜像

• 登录docker-third(hosted类型)

[[e-mail] ~]# docker login r123m:8003
Username: admin
Password: 
WARNING! Your password will be stored unencrypted in /root/.docker/config.json.
Configure a credential helper to remove this warning. See
https://docs.docker.com/engine/reference/commandline/login/#credentials-store

Login Succeeded

• 上传镜像

# 制作要上传的镜像
# 给要上传的镜像打标签,必须是 <hostname>:<port>/<repository>:<tag>形式
[[e-mail] ~]# docker image tag hello-world:latest   r123m:8003/hello-richard123m:latest

# 查看要上传的镜像
[[e-mail] ~]# docker image ls
REPOSITORY                             TAG                 IMAGE ID            CREATED             SIZE
r123m:8003/hello-richard123m   latest              bf756fb1ae65        3 months ago        13.3kB
hello-world                            latest              bf756fb1ae65        3 months ago        13.3kB

# 推送镜像
[[e-mail] ~]# docker image push r123m:8003/hello-richard123m:latest
The push refers to repository [r123m:8003/hello-richard123m]
9c27e219663c: Pushed 
latest: digest: sha256:90659bf80b44ce6be8234e6ff90a1ac34acbeb826903b02cfa0da11c82cbc042 size: 525

• 检查docker-third(hosted类型)上是否有该镜像

• 测试拉取这个镜像，先检查本机是否有该镜像，如有，请删除。

[[e-mail] ~]# docker pull r123m:8003/hello-richard123m:latest
latest: Pulling from hello-richard123m
Digest: sha256:90659bf80b44ce6be8234e6ff90a1ac34acbeb826903b02cfa0da11c82cbc042
Status: Downloaded newer image for r123m:8003/hello-richard123m:latest
r123m:8003/hello-richard123m:latest