容器相关的命令
先有个认知： 有镜像才能创建容器
下载一个centos的基础镜像
我们来看个例子 : 下载一个centos的基础镜像
[root@VM-0-7-centos ~]# docker pull centos
Using default tag: latest
latest: Pulling from library/centos
a1d0c7532777: Pull complete
Digest: sha256:a27fd8080b517143cbbbab9dfb7c8571c40d67d534bbdee55bd6c473f432b177
Status: Downloaded newer image for centos:latest
docker.io/library/centos:latest
[root@VM-0-7-centos ~]#
[root@VM-0-7-centos ~]#
[root@VM-0-7-centos ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
centos latest 5d0da3dc9764 2 weeks ago 231MB
[root@VM-0-7-centos ~]#
https://docs.docker.com/engine/reference/commandline/run/
操作说明
Option 太多了，看官文吧 ，这里挑几个常用的
$ docker run [OPTIONS] IMAGE [COMMAND] [ARG...]
# 参数说明
--name="Name" 容器名字 ,任意指定,用来区分容器
-d 后台方式运行
-it 使用交互方式运行，进入容器查看内容
-p 指定容器端口 -p 8080:8080
-p ip:主机端口:容器端口
-p 主机端口:容器端口 （常用）
-p 容器端口
容器端口
-P 随机指定端口启动并进入容器
[root@VM-0-7-centos ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
centos latest 5d0da3dc9764 2 weeks ago 231MB
[root@VM-0-7-centos ~]#
[root@VM-0-7-centos ~]#
# 启动并进入容器
[root@VM-0-7-centos ~]# docker run -it centos /bin/bash
[root@23e62436c0c5 /]# ls
bin dev etc home lib lib64 lost+found media mnt opt proc root run sbin srv sys tmp usr var
[root@23e62436c0c5 /]# pwd
/
# 从容器中退回主机
[root@23e62436c0c5 /]# exit
exit
[root@VM-0-7-centos ~]# pwd
/root
[root@VM-0-7-centos ~]#
[root@VM-0-7-centos ~]#
查看当前有哪些容器正在运行 docker ps
https://docs.docker.com/engine/reference/commandline/ps/
# docker ps 显示正常运行的容器
-a # 显示当前正在运行的容器 + 历史运行过的容器
-n=? # 显示最近创建的容器
-q # 只显示容器的编号
[root@VM-0-7-centos ~]# 显示正常运行的容器
[root@VM-0-7-centos ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
[root@VM-0-7-centos ~]#
[root@VM-0-7-centos ~]# 显示当前正在运行的容器 + 历史运行过的容器
[root@VM-0-7-centos ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
23e62436c0c5 centos "/bin/bash" 3 minutes ago Exited (0) 3 minutes ago admiring_austin
95a5e684ea82 feb5d9fea6a5 "/hello" 44 hours ago Exited (0) 44 hours ago dazzling_davinci
[root@VM-0-7-centos ~]#
[root@VM-0-7-centos ~]#
[root@VM-0-7-centos ~]#
[root@VM-0-7-centos ~]# 查看帮助
[root@VM-0-7-centos ~]# docker ps --help
Usage: docker ps [OPTIONS]
List containers
Options:
-a, --all Show all containers (default shows just running)
-f, --filter filter Filter output based on conditions provided
--format string Pretty-print containers using a Go template
-n, --last int Show n last created containers (includes all states) (default -1)
-l, --latest Show the latest created container (includes all states)
--no-trunc Don't truncate output
-q, --quiet Only display container IDs
-s, --size Display total file sizes
[root@VM-0-7-centos ~]# docker ps -n=1
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
23e62436c0c5 centos "/bin/bash" 4 minutes ago Exited (0) 4 minutes ago admiring_austin
[root@VM-0-7-centos ~]#
[root@VM-0-7-centos ~]#
[root@VM-0-7-centos ~]#
[root@VM-0-7-centos ~]# docker ps -aq
23e62436c0c5
95a5e684ea82
[root@VM-0-7-centos ~]#
启动容器
docker start container_name/container_id # 启动容器
https://docs.docker.com/engine/reference/commandline/start/
停止容器
https://docs.docker.com/engine/reference/commandline/stop/
docker stop container_name/container_id # 停止当前正在运行的容器
重启容器
docker restart container_name/container_id # 重启容器
https://docs.docker.com/engine/reference/commandline/restart/
强制停止
docker kill container_name/container_id # 强制停止当前容器
https://docs.docker.com/engine/reference/commandline/kill/
