docker镜像拉取运行删除

Posted 2021-03-19 flgb

1.拉去hello-world镜像并运行

docker pull hello-world 拉取hello-world镜像
Using default tag: latest
latest: Pulling from library/hello-world
1b930d010525: Pull complete
Digest: sha256:4fe721ccc2e8dc7362278a29dc660d833570ec2682f4e4194f4ee23e415e1064
Status: Downloaded newer image for hello-world:latest
docker.io/library/hello-world:latest
[root@localhost ~]# docker images 查看当前docker镜像
REPOSITORY TAG IMAGE ID CREATED SIZE
hello-world latest fce289e99eb9 12 months ago 1.84kB
[root@localhost ~]# docker run --name myhelloword hello-world 运行hello-world镜像

Hello from Docker!
This message shows that your installation appears to be working correctly.

To generate this message, Docker took the following steps:
1. The Docker client contacted the Docker daemon.
2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
(amd64)
3. The Docker daemon created a new container from that image which runs the
executable that produces the output you are currently reading.
4. The Docker daemon streamed that output to the Docker client, which sent it
to your terminal.

To try something more ambitious, you can run an Ubuntu container with:
$ docker run -it ubuntu bash

Share images, automate workflows, and more with a free Docker ID:
https://hub.docker.com/

For more examples and ideas, visit:
https://docs.docker.com/get-started/

docker ps 查看正在运行的容器
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
[root@localhost ~]# docker ps -a 查看后台存在的容器
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
e3854e40102c hello-world "/hello" 3 minutes ago Exited (0) 3 minutes ago myhelloword