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How to install Docker on CentOS 7

Centos中安装Docker,  参考：

How to install Nexus Repository Manager 3 with Docker:

A. docker Pull Command

1. docker pull sonatype/nexus3

B. Persistent Data

There are two general approaches to handling persistent storage requirements with Docker. See  for additional information.

1. Use a data volume. Since data volumes are persistent until no containers use them, a volume can be created specifically for this purpose. This is the recommended approach.

$ docker volume create --name nexus-data

$ docker run -d -p 8081:8081 --name nexus -v nexus-data:/nexus-data sonatype/nexus3

        2. To test.

/]# curl -u admin:admin123 http://localhost:8081/service/metrics/ping

pong

说明成功！

Docker容器启动

$ systemctl start docker

$ systemctl enable docker

$ systemctl stop docker

$ systemctl status docker

nexus的启动：

$ docker start nexus

$ docker stop nexus

$ docker stats nexus

$ docker rm nexus(删除image)

查看Docker中image

$ docker ps -a

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