镜像管理

常用镜像管理命令

搜索镜像

[root@localhost ~]# docker search centos
NAME                               DESCRIPTION                                     STARS               OFFICIAL            AUTOMATED
centos                             The official build of CentOS.                   4419                [OK]                
ansible/centos7-ansible            Ansible on Centos7                              113                                     [OK]
jdeathe/centos-ssh                 CentOS-6 6.9 x86_64 / CentOS-7 7.4.1708 x86_…   97                                      [OK]
consol/centos-xfce-vnc             Centos container with "headless" VNC session…   55                                      [OK]
tutum/centos                       Simple CentOS docker image with SSH access      42                                      
imagine10255/centos6-lnmp-php56    centos6-lnmp-php56                              41                                      [OK]
centos/mysql-57-centos7            MySQL 5.7 SQL database server                   31                                      
gluster/gluster-centos             Official GlusterFS Image [ CentOS-7 +  Glust…   30                                      [OK]
openshift/base-centos7             A Centos7 derived base image for Source-To-I…   27                                      
centos/python-35-centos7           Platform for building and running Python 3.5…   24                                      
kinogmt/centos-ssh                 CentOS with SSH                                 21                                      [OK]
centos/postgresql-96-centos7       PostgreSQL is an advanced Object-Relational …   19                                      
openshift/jenkins-2-centos7        A Centos7 based Jenkins v2.x image for use w…   13                                      
openshift/mysql-55-centos7         DEPRECATED: A Centos7 based MySQL v5.5 image…   6                                       
pivotaldata/centos-gpdb-dev        CentOS image for GPDB development. Tag names…   4                                       
openshift/jenkins-1-centos7        DEPRECATED: A Centos7 based Jenkins v1.x ima…   4                                       
darksheer/centos                   Base Centos Image -- Updated hourly             3                                       [OK]
openshift/wildfly-101-centos7      A Centos7 based WildFly v10.1 image for use …   3                                       
pivotaldata/centos                 Base centos, freshened up a little with a Do…   2                                       
openshift/wildfly-81-centos7       A Centos7 based WildFly v8.1 image for use w…   1                                       
blacklabelops/centos               CentOS Base Image! Built and Updates Daily!     1                                       [OK]
pivotaldata/centos-mingw           Using the mingw toolchain to cross-compile t…   1                                       
jameseckersall/sonarr-centos       Sonarr on CentOS 7                              0                                       [OK]
smartentry/centos                  centos with smartentry                          0                                       [OK]
pivotaldata/centos-gcc-toolchain   CentOS with a toolchain, but unaffiliated wi…   0

获取镜像

[root@localhost ~]# docker pull centos
Using default tag: latest
latest: Pulling from library/centos
7dc0dca2b151: Pull complete 
Digest: sha256:b67d21dfe609ddacf404589e04631d90a342921e81c40aeaf3391f6717fa5322
Status: Downloaded newer image for centos:latest

运行镜像

[root@localhost ~]# docker run -it --rm centos bash
[root@5be86574f0a3 /]# cat /etc/os-release 
NAME="CentOS Linux"
VERSION="7 (Core)"
ID="centos"
ID_LIKE="rhel fedora"
VERSION_ID="7"
PRETTY_NAME="CentOS Linux 7 (Core)"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:centos:centos:7"
HOME_URL="https://www.centos.org/"
BUG_REPORT_URL="https://bugs.centos.org/"

CENTOS_MANTISBT_PROJECT="CentOS-7"
CENTOS_MANTISBT_PROJECT_VERSION="7"
REDHAT_SUPPORT_PRODUCT="centos"
REDHAT_SUPPORT_PRODUCT_VERSION="7"

[root@5be86574f0a3 /]# exit

查看镜像

[root@localhost ~]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
centos              latest              49f7960eb7e4        3 weeks ago         200MB

删除镜像

[root@localhost ~]# docker rmi centos
Untagged: centos:latest
Untagged: centos@sha256:b67d21dfe609ddacf404589e04631d90a342921e81c40aeaf3391f6717fa5322
Deleted: sha256:49f7960eb7e4cb46f1a02c1f8174c6fac07ebf1eb6d8deffbcb5c695f1c9edd5
Deleted: sha256:bcc97fbfc9e1a709f0eb78c1da59caeb65f43dc32cd5deeb12b8c1784e5b8