# 4 docker镜像相关操作
# 4.1 搜索官方仓库镜像
$ docker search centos
NAME DESCRIPTION STARS OFFICIAL AUTOMATED
centos The official build of CentOS. 3992 [OK]
ansible/centos7-ansible Ansible on Centos7 105
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# 列表说明
| 参数 | 说明 |
|---|---|
| NAME | 镜像名称 |
| DESCRIPTION | 镜像说明 |
| STARS | 是否是官方的 |
| AUTOMATED | 是否是自动构建的 |
# 4.2 获取镜像
# 根据镜像名称拉取镜像
$ docker pull centos
Using default tag: latest
latest: Pulling from library/centos
af4b0a2388c6: Downloading 34.65MB/73.67MB
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# 查看当前主机镜像列表
$docker image list
REPOSITORY TAG IMAGE ID CREATED SIZE
centos latest ff426288ea90 3 weeks ago 207MB
nginx latest 3f8a4339aadd 5 weeks ago
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# 拉第三方镜像方法
docker pull index.tenxcloud.com/tenxcloud/httpd
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# 4.3 导出镜像
$ docker image list
REPOSITORY TAG IMAGE ID CREATED SIZE
centos latest ff426288ea90 3 weeks ago 207MB
nginx latest 3f8a4339aadd 5 weeks ago 108MB
# 导出
$ docker image save centos > docker-centos.tar.gz
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# 4.4 删除镜像
$ docker image rm centos:latest
$ docker image list
REPOSITORY TAG IMAGE ID CREATED SIZE
nginx latest 3f8a4339aadd 5 weeks ago 108MB
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# 4.5 导入镜像
$ docker image load -i docker-centos.tar.gz
e15afa4858b6: Loading layer 215.8MB/215.8MB
Loaded image: centos:latest
$ docker image list
REPOSITORY TAG IMAGE ID CREATED SIZE
centos latest ff426288ea90 3 weeks ago 207MB
nginx latest 3f8a4339aadd 5 weeks ago 108MB
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# 4.6 查看镜像的详细信息
$ docker image inspect centos
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