1、查看系统(docker)层面信息
[root@elasticsearch-02 ~]# docker info
Containers: 1
Running: 0
Paused: 0
Stopped: 1
Images: 1
Server Version: 1.13.1
Storage Driver: overlay2
Backing Filesystem: xfs
Supports d_type: true
Native Overlay Diff: true
Logging Driver: journald
Cgroup Driver: systemd
Plugins:
Volume: local
Network: bridge host macvlan null overlay
Swarm: inactive
Runtimes: docker-runc runc
Default Runtime: docker-runc
Init Binary: /usr/libexec/docker/docker-init-current
containerd version: (expected: aa8187dbd3b7ad67d8e5e3a15115d3eef43a7ed1)
runc version: 66aedde759f33c190954815fb765eedc1d782dd9 (expected: 9df8b306d01f59d3a8029be411de015b7304dd8f)
init version: fec3683b971d9c3ef73f284f176672c44b448662 (expected: 949e6facb77383876aeff8a6944dde66b3089574)
Security Options:
seccomp
WARNING: You're not using the default seccomp profile
Profile: /etc/docker/seccomp.json
selinux
Kernel Version: 3.10.0-957.el7.x86_64
Operating System: CentOS Linux 7(Core)
OSType: linux
Architecture: x86_64
Number of Docker Hooks: 3
CPUs: 2
Total Memory: 9.607 GiB
Name: elasticsearch-02
ID: 7EVF:7RJV:W22Q:V5QV:2H3K:EXMN:C2WD:YV5O:WZBI:5ZL5:RREV:VYJ6
Docker Root Dir: /var/lib/docker
Debug Mode (client): false
Debug Mode (server): false
Registry: https://index.docker.io/v1/
WARNING: bridge-nf-call-iptables is disabled
WARNING: bridge-nf-call-ip6tables is disabled
Experimental: false
Insecure Registries:
127.0.0.0/8
Live Restore Enabled: false
Registries: docker.io (secure)
2、查看系统详细信息
[root@elasticsearch-02 ~]# docker inspect my_container
3、搜索镜像
[root@elasticsearch-02 ~]# docker search centos
INDEX NAME DESCRIPTION STARS OFFICIAL AUTOMATED
docker.io docker.io/centos The official build of CentOS. 5877 [OK]
docker.io docker.io/ansible/centos7-ansible Ansible on Centos7 128 [OK]
docker.io docker.io/jdeathe/centos-ssh OpenSSH / Supervisor / EPEL/IUS/SCL Repos ... 114 [OK]
docker.io docker.io/consol/centos-xfce-vnc Centos container with "headless"VNC sessi... 109 [OK]
4、拉取镜像
[root@elasticsearch-02 ~]# docker pull centos:latest
Trying to pull repository docker.io/library/centos ...
latest: Pulling from docker.io/library/centos
8a29a15cefae: Pull complete
Digest: sha256:fe8d824220415eed5477b63addf40fb06c3b049404242b31982106ac204f6700
Status: Downloaded newer image fordocker.io/centos:latest
5、查看本地镜像
[root@RedHat_test tmp]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
docker.io/centos latest 470671670cac 7weeks ago 237MB
6、创建容器
[root@elasticsearch-02 ~]# docker create centos:latest
fb0f16442424813ed7b74dfc24151711a89e9a3d71745766c63c4118fbf90771
7、查看所有容器,包括停止的
[root@elasticsearch-02 ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
fb0f16442424 centos:latest "/bin/bash" 42seconds ago Created condescending_cori
8、启动容器
[root@elasticsearch-02 ~]# docker start fb0f16442424
fb0f16442424
9、修改镜像的标签
[root@elasticsearch-02 ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
docker.io/centos latest 470671670cac 7weeks ago 237MB
[root@elasticsearch-02 ~]# docker tag 470671670cac centos:1
[root@elasticsearch-02 ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
centos 1 470671670cac 7weeks ago 237MB
docker.io/centos latest 470671670cac 7weeks ago 237MB
10、运行容器(必须先启动容器,才可以进入容器)
[root@elasticsearch-02 ~]# docker run -dit centos:latest
2b58cb2416dfd5289650a6566f4c6e51a1e419dba179a47405a8b40a1b023e04
[root@elasticsearch-02 ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
2b58cb2416df centos:latest "/bin/bash" 5seconds ago Up 4seconds happy_feynman
[root@elasticsearch-02 ~]# docker container ls
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
2b58cb2416df centos:latest "/bin/bash" 17seconds ago Up 16seconds happy_feynman
11、进入容器
1.(如果从这个 stdin 中 exit,会导致容器的停止)
[root@elasticsearch-02 ~]# docker attach 2b58cb2416df
2.(如果从这个 stdin 中 exit,不会导致容器的停止)
[root@elasticsearch-02 ~]# docker exec -it 2b58cb2416df bash
12、退出容器
[root@elasticsearch-02 ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
2b58cb2416df centos:latest "/bin/bash" 8minutes ago Up 8minutes happy_feynman
[root@elasticsearch-02 ~]# docker stop happy_feynman
happy_feynman
[root@elasticsearch-02 ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
13、强制停止容器
[root@elasticsearch-02 ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
2b58cb2416df centos:latest "/bin/bash" 10minutes ago Up 4seconds happy_feynman
[root@elasticsearch-02 ~]# docker kill happy_feynman
happy_feynman
14、从容器中取日志
[root@elasticsearch-02 ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
04aa90727f09 centos:latest "/bin/bash" 38seconds ago Up 36seconds pedantic_fermi
[root@elasticsearch-02 ~]# docker logs 04aa90727f09
15、显示一个运行的容器里面的进程信息
[root@elasticsearch-02 ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
04aa90727f09 centos:latest "/bin/bash" 38seconds ago Up 36seconds pedantic_fermi
[root@elasticsearch-02 ~]# docker top 04aa90727f09
UID PID PPID C STIME TTY TIME CMD
root 31184 31166 0 17:46 pts/1 00:00:00 /bin/bash
16、删除容器(不能删除一个正在运行的容器)
[root@elasticsearch-02 ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
2b58cb2416df centos:latest "/bin/bash" 12minutes ago Up 3seconds happy_feynman
[root@elasticsearch-02 ~]# docker stop happy_feynman
happy_feynman
[root@elasticsearch-02 ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
2b58cb2416df centos:latest "/bin/bash" 12minutes ago Exited (0) 9seconds ago happy_feynman
[root@elasticsearch-02 ~]# docker rm 2b58cb2416df
2b58cb2416df
[root@elasticsearch-02 ~]# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
17、一次性删除所有容器
[root@elasticsearch-02 ~]# docker rm 'docker ps -a -q'
18、容器的导出
[root@elasticsearch-02 ~]# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
04aa90727f09 centos:latest "/bin/bash" 20hours ago Up 20hours pedantic_fermi
[root@elasticsearch-02 ~]# docker export 04aa90727f09 > tomcat8080.tar
[root@elasticsearch-02 ~]# ls
tomcat8080.tar
19、容器的导入
[root@elasticsearch-02 ~]# ls
tomcat8080.tar
[root@elasticsearch-02 ~]# docker import tomcat8080.tar
sha256:5a7456e811d5fdbb0e4795a4fa2168f526aebe6f716bb5ee6cc2fd1b9699ad4f
[root@elasticsearch-02 ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
<none> <none> 5a7456e811d5 8seconds ago 0B
20、容器与主机之间的数据拷贝
1.将主机/www/runoob目录拷贝到容器96f7f14e99ab的/www目录下
[root@RedHat_test tmp]# docker cp /www/runoob 96f7f14e99ab:/www/
2.将主机/www/runoob目录拷贝到容器96f7f14e99ab中,目录重命名为www
[root@RedHat_test tmp]# docker cp /www/runoob 96f7f14e99ab:/www
3.将容器96f7f14e99ab的/www目录拷贝到主机的/tmp目录中
[root@RedHat_test tmp]# docker cp 96f7f14e99ab:/www /tmp/