4-Docker命令之docker pull

1.docker pull介绍

docker pull命令是用于从镜像仓库中拉取指定镜像。如果没有指定镜像标签，那么docker默认使用:latest标签

2.docker pull用法

docker pull [参数] NAME[:TAG|@DIGEST]

[root@centos79 ~]# docker pull --help

Usage:  docker pull [OPTIONS] NAME[:TAG|@DIGEST]

Download an image from a registry

Aliases:
  docker image pull, docker pull

Options:
  -a, --all-tags                Download all tagged images in the repository
      --disable-content-trust   Skip image verification (default true)
      --platform string         Set platform if server is multi-platform capable
  -q, --quiet                   Suppress verbose output
[root@centos79 ~]# 

3.实例

3.1.拉取最新版本镜像

命令：

docker pull nginx

[root@centos79 ~]# docker pull nginx
Using default tag: latest
latest: Pulling from library/nginx
a2abf6c4d29d: Pull complete 
a9edb18cadd1: Pull complete 
589b7251471a: Pull complete 
186b1aaa4aa6: Pull co