Docker 管理

镜像（Images）管理

[root@docker01 ~]# docker  search apache #搜索镜像
INDEX       NAME                                                     DESCRIPTION                                     STARS     OFFICIAL   AUTOMATED
docker.io   docker.io/tomcat                                         Apache Tomcat is an open source implementa...   1469      [OK]       
docker.io   docker.io/httpd                                          The Apache HTTP Server Project                  1227      [OK]       
docker.io   docker.io/cassandra                                      Apache Cassandra is an open-source distrib...   639       [OK]       
docker.io   docker.io/maven                                          Apache Maven is a software project managem...   455       [OK]       
docker.io   docker.io/solr                                           Solr is the popular, blazing-fast, open so...   428       [OK]       
docker.io   docker.io/zookeeper                                      Apache ZooKeeper is an open-source server ...   212       [OK]       
docker.io   docker.io/eboraas/apache-php                             PHP5 on Apache (with SSL support), built o...   132                  [OK]                                                                  

[root@docker01 ~]# docker  pull docker.io/httpd  #下载镜像
Using default tag: latest
Trying to pull repository docker.io/library/httpd ... 
sha256:5b35d13089db73df620f4c198f5a4bfa56b8fe45a0364f343df9a26d874fef6c: Pulling from docker.io/library/httpd
3d839585b9c7: Pull complete 
cf157792586a: Pull complete 
c620105f0566: Pull complete 
830b826a2e13: Pull complete 
ec2eb5743536: Pull complete 
eb53f3c09897: Pull complete 
Digest: sha256:5b35d13089db73df620f4c198f5a4bfa56b8fe45a0364f343df9a26d874fef6c
Status: Downloaded newer image for docker.io/httpd:latest

[root@docker01 ~]# docker images #列出镜像
docker rmi [OPTIONS] IMAGE [IMAGE...]删除镜像

docker save -o tomcat.tar.gz tomcat //保存镜像
docker rmi -f  33b3a04191c0 //强子删除镜像
[root@docker01 ~]# docker load < tomcat.tar.gz //加载镜像
Loaded image: tomcat:v5
[root@docker01 ~]# docker images //查看加载过的镜像
REPOSITORY                        TAG                 IMAGE ID            CREATED             SIZE
tomcat                            v5                  33b3a04191c0        45 hours ago        639.6 MB

docker run -itd --name on_tom01 -p 9990:8080 -v /opt/webapps:/opt/dev_tom01/webapps  33b3a04191c0 //运行一个容器
[root@docker01 ~]# docker ps |grep tom
c059b7e6795b        33b3a04191c0                   "/root/run.sh"           5 minutes ago       Up 5 minutes        0.0.0.0:9990->8080/tcp                           on_tom01
[root@docker01 ~]# docker commit -m='a new iamge' --author='Thomas' c059b7e6795b wxl/tomcat:v6 更新镜像
sha256:5439575cf8efd41fbea689a40e7f4a9aef1c8637b0e3243b36dca902cda27709
[root@docker01 ~]# docker images 
REPOSITORY                        TAG                 IMAGE ID            CREATED             SIZE
wxl/tomcat                        v6                  5439575cf8ef        5 seconds ago       639.6 MB
tomcat                            v5                  33b3a04191c0        46 hours ago        639.6 MB

 

容器(Container)管理

[root@docker01 ~]# docker run -itd --name dev_tom01 centos /bin/bash

[root@docker01 ~]#  docker  stop/start/restart 容器名称/id //管理容器
[root@docker01 ~]# docker  stats  9eb3b7729ccd
CONTAINER           CPU %               MEM USAGE / LIMIT      MEM %               NET I/O             BLOCK I/O           PIDS
9eb3b7729ccd        0.00%               4.523 MiB / 7.64 GiB   0.06%               648 B / 648 B       4.676 MB / 0 B      0
[root@docker01 ~]# docker  logs  c059b7e6795b //查看日志
Using CATALINA_BASE:   /opt/dev_tom01
Using CATALINA_HOME:   /opt/dev_tom01
Using CATALINA_TMPDIR: /opt/dev_tom01/temp
Using JRE_HOME:        /opt/jdk1.7.0_79
[root@docker01 ~]# docker rename dev_tom01  test //重新命名
[root@docker01 ~]# docker  rm 9eb3b7729ccd //删除容器

[root@docker01 ~]# docker top c059b7e6795b //top进程
[root@docker01 ~]# docker ps optios
-a：查看所有容器，含停止运行的
-l：查看刚启动的容器
-q：只显示容器ID
-s:显示容器大小
-n=4: 列出最近创建的4个容器