docker学习笔记2-容器常用操作

将宿主机/home/saiya/test目录拷贝到容器96f7f14e99ab的/www目录下。

docker cp /home/saiya/test 96f7f14e99ab:/www/

将容器96f7f14e99ab的/www目录拷贝到主机的/tmp目录中

docker cp  96f7f14e99ab:/www /tmp/

docker attach 或者docker exec
建议使用docker exec

docker exec -it my_tomcat bash

docker logs -f <容器名称或者id>

构建自定义镜像，注意命令最后的点，表示当前目录

docker build -t mytomcat:1.5 .

docker查看容器的网络ip

可直接获得容器的ip地址如：172.18.0.4

docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' container_name_or_id

显示所有容器IP地址：

docker inspect --format='{{.Name}} - {{range.NetworkSettings.Networks}}{{.IPAddress}}{{end}}' $(docker ps -aq)

常用方法有两种

docker inspect 容器ID | grep IPAddress

查看docker name：

sudo docker inspect -f='{{.Name}}' $(sudo docker ps -a -q)

查看dockers ip：

sudo docker inspect -f='{{.NetworkSettings.IPAddress}}' $(sudo docker ps -a -q)

综上，我们可以写出以下脚本列出所有容器对应的名称，端口，及ip

docker inspect -f='{{.Name}} {{.NetworkSettings.IPAddress}} {{.HostConfig.PortBindings}}' $(docker ps -aq)

查看容器的网络组成

不显示的通过--net参数指定网络，默认都是docker0。

  安装 Docker 时，它会自动创建 3 个网络。可以使用 docker network ls命令列出这些网络。

  $ docker network ls 
  NETWORK ID          NAME                DRIVER 
  7fca4eb8c647        bridge              bridge 
  9f904ee27bf5        none                null 
  cf03ee007fb4        host                host

  查看网络包含的容器等
  [root@localhost ~]# docker network inspect test-network 
  [ 
     { 
         "Name": "test-network", 
         "Id": "e2f569d57eb8506602fdfc3e8a20b12073782dcfd6046ce4ef76de8db3275d21", 
         "Scope": "local", 
         "Driver": "bridge", 
         "IPAM": { 
             "Driver": "default", 
             "Config": [ 
                 {} 
             ] 
         }, 
         "Containers": { 
             "7699fe682353835166482d1416a70f0361ddf88940bd7102e2f84f6d46b3d113": { 
                 "EndpointID": "cf1f3e319a1c1ec83c3eaf0d5380b9ee50c1f2d37e713425996ada6788f8e77a", 
                 "MacAddress": "02:42:ac:12:00:02", 
                 "IPv4Address": "172.18.0.2/16", 
                 "IPv6Address": ""
             } 
         }, 
         "Options": {} 
     } 
  ]

也可以动态地将容器连接到网络。

  [root@localhost ~]# docker run -itd --name=test2 ppc64le/busybox /bin/sh 
  69d79cddbdf8a920d24993bfc16e8d064479327d8cc23f10ae25e96a2b9b057a 

  [root@localhost ~]# docker network connect test-network test2 
  [root@localhost ~]# docker network inspect test-network 
  [ 
     { 
         "Name": "test-network", 
         "Id": "e2f569d57eb8506602fdfc3e8a20b12073782dcfd6046ce4ef76de8db3275d21", 
         "Scope": "local", 
         "Driver": "bridge", 
         "IPAM": { 
             "Driver": "default", 
             "Config": [ 
                 {} 
             ] 
         }, 
         "Containers": { 
             "69d79cddbdf8a920d24993bfc16e8d064479327d8cc23f10ae25e96a2b9b057a": { 
                 "EndpointID": "5dc4877e71eca2243167e97153d56c5334d98991fcc3eb2f7f968d0b68416255", 
                 "MacAddress": "02:42:ac:12:00:03", 
                 "IPv4Address": "172.17.0.3/16", 
                 "IPv6Address": ""
             }, 
             "7699fe682353835166482d1416a70f0361ddf88940bd7102e2f84f6d46b3d113": { 
                 "EndpointID": "cf1f3e319a1c1ec83c3eaf0d5380b9ee50c1f2d37e713425996ada6788f8e77a", 
                 "MacAddress": "02:42:ac:12:00:02", 
                 "IPv4Address": "172.17.0.2/16", 
                 "IPv6Address": ""
             } 
         }, 
         "Options": {} 
     } 
  ]

为容器添加网络

docker network connect host 容器名称