Docker 基础 (一)

为什么要使用 Docker？

作为一种新兴的虚拟化方式，Docker 跟传统的虚拟化方式相比具有众多的优势。
首先，Docker 容器的启动可以在秒级实现，这相比传统的虚拟机方式要快得多。其次，Docker 对系统资源的利用率很高，一台主机上可以同时运行数千个 Docker 容器。
容器除了运行其中应用外，基本不消耗额外的系统资源，使得应用的性能很高，同时系统的开销尽量小。传统虚拟机方式运行 10 个不同的应用就要起 10 个虚拟机，而Docker 只需要启动 10 个隔离的应用即可。
具体说来，Docker 在如下几个方面具有较大的优势。

更快速的交付和部署

对开发和运维（devop）人员来说，最希望的就是一次创建或配置，可以在任意地方正常运行。
开发者可以使用一个标准的镜像来构建一套开发容器，开发完成之后，运维人员可以直接使用这个容器来部署代码。 Docker 可以快速创建容器，快速迭代应用程序，并让整个过程全程可见，使团队中的其他成员更容易理解应用程序是如何创建和工作的。 Docker 容器很轻很快！容器的启动时间是秒级的，大量地节约开发、测试、部署的时间。

更轻松的迁移和扩展

Docker 容器几乎可以在任意的平台上运行，包括物理机、虚拟机、公有云、私有云、个人电脑、服务器等。这种兼容性可以让用户把一个应用程序从一个平台直接迁移到另外一个。

更简单的管理

使用 Docker，只需要小小的修改，就可以替代以往大量的更新工作。所有的修改都以增量的方式被分发和更新，从而实现自动化并且高效的管理。

对比传统虚拟机总结

特性	容量	虚拟机
启动	秒级	分钟级
硬盘使用	一般为 MB	一般为 GB
性能	接近原生	弱于
系统支持量	单机支持上千个容器	一般几十个

Docker 包括三个基本概念

镜像（Image）容器（Container）仓库（Repository）
理解了这三个概念，就理解了 Docker 的整个生命周期。

Docker 镜像

Docker 镜像就是一个只读的模板。
例如：一个镜像可以包含一个完整的 ubuntu 操作系统环境，里面仅安装了 Apache 或用户需要的其它应用程序。
镜像可以用来创建 Docker 容器。
Docker 提供了一个很简单的机制来创建镜像或者更新现有的镜像，用户甚至可以直接从其他人那里下载一个已经做好的镜像来直接使用。

Docker 容器

Docker 利用容器来运行应用。
容器是从镜像创建的运行实例。它可以被启动、开始、停止、删除。每个容器都是相互隔离的、保证安全的平台。
可以把容器看做是一个简易版的 Linux 环境（包括root用户权限、进程空间、用户空间和网络空间等）和运行在其中的应用程序。
*注：镜像是只读的，容器在启动的时候创建一层可写层作为最上层。

Docker 仓库

仓库是集中存放镜像文件的场所。有时候会把仓库和仓库注册服务器（Registry）混为一谈，并不严格区分。实际上，仓库注册服务器上往往存放着多个仓库，每个仓库中又包含了多个镜像，每个镜像有不同的标签（tag）。
仓库分为公开仓库（Public）和私有仓库（Private）两种形式。
最大的公开仓库是 Docker Hub，存放了数量庞大的镜像供用户下载。国内的公开仓库包括 Docker Pool 等，可以提供大陆用户更稳定快速的访问。
当然，用户也可以在本地网络内创建一个私有仓库。
当用户创建了自己的镜像之后就可以使用 push 命令将它上传到公有或者私有仓库，这样下次在另外一台机器上使用这个镜像时候，只需要从仓库上 pull 下来就可以了。
*注：Docker 仓库的概念跟 Git 类似，注册服务器可以理解为 GitHub 这样的托管服务。

CentOS 系列安装 Docker

最小化安装Centos7.5

[root@Docker ~]# cat /etc/redhat-release 
CentOS Linux release 7.5.1804 (Core) 
[root@Docker ~]# uname -r
3.10.0-862.3.3.el7.x86_64

关闭防火墙和selinux

[root@Docker ~]# systemctl stop firewalld
[root@Docker ~]# systemctl disable firewalld
[root@Docker ~]# setenforce 0
setenforce: SELinux is disabled

版本选择

Docker
- 17.03之后版本变为Docker CE
Docker CE
- 社区版，Community Edition
Docker EE
- 企业版，Enterprise Edition
- 收费版本，强调安全性，提供一些高级特性及商业支持

Docker安装：标准版本

[root@Docker ~]# yum -y install docker
[root@Docker ~]# systemctl start docker #启动docker进程
[root@Docker ~]# systemctl enable docker    #加入docker开机启动
Created symlink from /etc/systemd/system/multi-user.target.wants/docker.service to /usr/lib/systemd/system/docker.service.
[root@Docker ~]# docker ps  #查看封装在docker镜像中的正在运行的镜像进程
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES
[root@Docker ~]# docker version
Client:
 Version:         1.13.1
 API version:     1.26
 Package version: docker-1.13.1-63.git94f4240.el7.centos.x86_64
 Go version:      go1.9.4
 Git commit:      94f4240/1.13.1
 Built:           Fri May 18 15:44:33 2018
 OS/Arch:         linux/amd64
Server:
 Version:         1.13.1
 API version:     1.26 (minimum version 1.12)
 Package version: docker-1.13.1-63.git94f4240.el7.centos.x86_64
 Go version:      go1.9.4
 Git commit:      94f4240/1.13.1
 Built:           Fri May 18 15:44:33 2018
 OS/Arch:         linux/amd64
 Experimental:    false

Docker安装：CE社区版

首先清理掉yum安装的docker标准版
这里有两种方式

#第一种清理docker方法
[root@Docker ~]# yum remove docker-latest-logrotate  docker-logrotate  docker-selinux dockdocker-engine

#第二种清理docker方法 
[root@Docker ~]# yum history list #查看yum安装的历史列表

已加载插件：fastestmirror
ID | 登录用户 | 日期和时间 | 操作 | 变更数
-------------------------------------------------------------------------------

31 | 系统 <空> | 2018-07-16 17:16 | Install | 9 E<　　　　#这次就是安装
30 | root <root> | 2018-07-09 11:04 | Install | 9 >
29 | root <root> | 2018-07-08 10:38 | Install | 1
28 | root <root> | 2018-07-08 10:33 | Install | 3
27 | root <root> | 2018-06-26 20:27 | Install | 1
26 | root <root> | 2018-06-26 18:20 | Install | 5
25 | root <root> | 2018-06-26 17:13 | Install | 1
24 | root <root> | 2018-06-26 17:06 | Install | 1
23 | root <root> | 2018-06-21 14:50 | Install | 3
22 | root <root> | 2018-06-18 23:11 | Install | 50
21 | root <root> | 2018-06-18 23:04 | Install | 2
20 | root <root> | 2018-06-17 02:59 | I, U | 50
19 | root <root> | 2018-06-16 20:33 | I, U | 30
18 | root <root> | 2018-06-16 20:23 | Install | 1
17 | root <root> | 2018-06-16 20:20 | Install | 2
16 | root <root> | 2018-06-16 13:14 | Install | 1
history list


[root@Docker ~]# yum history info 31     #查看yum历史安装ID为31的安装信息

　　已加载插件：fastestmirror
　　事务 ID： 31
　　起始时间： Mon Jul 16 17:16:46 2018
　　启动 RPM 数据库： 971:bb0b16847e8bd5bbed6649c9045ceb3ea74c0b8d
　　结束时间： 17:17:11 2018 （25 秒）
　　结束 RPM 数据库： 980:1158b800059814346da9aca5bc32093cb8af18b5
　　用户：系统 <空>
　　返回码：成功
　　命令行： install docker-io
　　事务完成属主：
　　　　　　已安装 rpm-4.11.3-32.el7.x86_64 @anaconda
　　　　　　已安装 yum-3.4.3-158.el7.centos.noarch @anaconda
　　　　　　已安装 yum-metadata-parser-1.1.4-10.el7.x86_64 @anaconda
　　　　　　已安装 yum-plugin-fastestmirror-1.1.31-45.el7.noarch @anaconda
　　已变更的包：
　　　　　　依赖安装 container-selinux-2:2.55-1.el7.noarch @extras
　　　　　　依赖安装 container-storage-setup-0.9.0-1.rhel75.gite0997c3.el7.noarch @extras
　　　　　　安装 docker-2:1.13.1-63.git94f4240.el7.centos.x86_64 @extras
　　　　　　依赖安装 docker-client-2:1.13.1-63.git94f4240.el7.centos.x86_64 @extras
　　　　　　依赖安装 docker-common-2:1.13.1-63.git94f4240.el7.centos.x86_64 @extras
　　　　　　依赖安装 oci-register-machine-1:0-6.git2b44233.el7.x86_64 @extras
　　　　　　依赖安装 oci-systemd-hook-1:0.1.15-2.gitc04483d.el7.x86_64 @extras
　　　　　　依赖安装 oci-umount-2:2.3.3-3.gite3c9055.el7.x86_64 @extras
　　　　　　依赖安装 skopeo-containers-1:0.1.29-3.dev.git7add6fc.el7.0.x86_64 @extras
　　Scriptlet 输出：
　　　　1 setsebool: SELinux is disabled.
　　history info

[root@Docker ~]# yum -y history undo 31  #进行yum安装操作回退

#安装依赖包
[root@Docker ~]# yum -y install yum-utils device-mapper-persistent-data lvm2
#添加docker的CE版本的yum源配置文件
[root@Docker ~]# curl https://download.docker.com/linux/centos/docker-ce.repo -o /etc/yum.repos.d/docker-ce.repo
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  2424  100  2424    0     0   2544      0 --:--:-- --:--:-- --:--:--  2543
[root@Docker ~]# ll /etc/yum.repos.d/docker-ce.repo 
-rw-r--r-- 1 root root 2424 7月  16 17:36 /etc/yum.repos.d/docker-ce.repo

#安装CE版本的docker
[root@Docker ~]# yum -y install docker-ce
[root@Docker ~]# systemctl start docker #启动docker
[root@Docker ~]# systemctl enable docker   #添加开机启动
[root@Docker ~]# docker version #查看docker版本
Client:
 Version:      18.03.1-ce
 API version:  1.37
 Go version:   go1.9.5
 Git commit:   9ee9f40
 Built:        Thu Apr 26 07:20:16 2018
 OS/Arch:      linux/amd64
 Experimental: false
 Orchestrator: swarm

Server:
 Engine:
  Version:      18.03.1-ce
  API version:  1.37 (minimum version 1.12)
  Go version:   go1.9.5
  Git commit:   9ee9f40
  Built:        Thu Apr 26 07:23:58 2018
  OS/Arch:      linux/amd64
  Experimental: false

# 国内部分用户可能无法连接docker官网提供的源，这里提供阿里云的镜像节点供测试使用
[root@Docker ~]# yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
[root@Docker ~]# rpm --import http://mirrors.aliyun.com/docker-ce/linux/centos/gpg
[root@Docker ~]# yum makecache fast
[root@Docker ~]# yum -y install docker-ce

Docker的操作命令

添加docker国内镜像源

容器Hub服务 https://cr.console.aliyun.com的控制台提升pull的速度

可以用支付宝登录

cat /etc/docker/daemon.json 
{
  "registry-mirrors":[ "https://registry.docker-cn.com" ]
}
[root@docker ~]# systemctl daemon-reload
[root@docker ~]# systemctl restart docker

Docker命令：search

用于从docker的官方公有镜像仓库查找镜像

1.查看Docker Hub上公开的centos镜像

[root@docker ~]# docker search centos
NAME                DESCRIPTION                  STARS               OFFICIAL            AUTOMATED
centos       The official build of CentOS.        4419                [OK]                
...以下省略无数行....                               

Name：镜像的名字
DESCRIPTION：描述
STARS：星级（越高越好）
OFFICIAL：是否是官方发布的
AUTOMATED:是否自动化的

2.查找星级多于100的centos镜像

[root@docker ~]# docker search centos -f stars=100
NAME                      DESCRIPTION                     STARS               OFFICIAL            AUTOMATED
centos                    The official build of CentOS.   4419                [OK]                
ansible/centos7-ansible   Ansible on Centos7              114                                     [OK]

/：符号用于分割作者名称和镜像名称
ansible/centos7-ansible：ansible是作者名称，centos7-ansible是镜像名称

3.多条件查找--filter

#查找官方发布的，星级大于100的centos镜像
[root@docker ~]# docker search centos --filter is-official=true --filter stars=100
NAME                DESCRIPTION                     STARS               OFFICIAL            AUTOMATED
centos              The official build of CentOS.   4419                [OK]

Docker命令：pull

用于从Docker Hub上下载公有镜像

#查找符合条件的hello-world镜像
[root@docker ~]# docker search hello-world --filter is-official=true --filter stars=100 
NAME                DESCRIPTION                                     STARS               OFFICIAL            AUTOMATED
hello-world         Hello World! (an example of minimal Dockeriz…   572                 [OK]    
#下载目标hello-world镜像
[root@docker ~]# docker pull hello-world
Using default tag: latest
latest: Pulling from library/hello-world
9bb5a5d4561a: Pull complete 
Digest: sha256:3e1764d0f546ceac4565547df2ac4907fe46f007ea229fd7ef2718514bcec35d
Status: Downloaded newer image for hello-world:latest       #下载成功latest是标记tag
#下载目标centos:7镜像
[root@docker 7]# docker pull centos:7   #网速不好的话，需要点时间耐心等待

Docker命令：images

用于本地镜像的查看

[root@Docker ~]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
hello-world         latest              2cb0d9787c4d        5 days ago          1.85kB
centos              7                   49f7960eb7e4        5 weeks ago         200MB

REPOSITORY：镜像仓库（下边罗列的都是本地已有镜像名称）

TAG：镜像的标记（为了区分同名镜像）

IMAGES ID：镜像的ID号

CREATED：此镜像的创建时间

SIZE：此镜像的大小

Docker命令：build

用于本地自定义镜像的构建，需要创建Dockerfile文件

#创建Dockerfile文件的存储目录
[root@docker ~]# mkdir -p /root/dockerfile/lib/centos/7
[root@docker ~]# cd /root/dockerfile/lib/centos/7
#创建docker.sh脚本
[root@docker 7]# cat docker.sh 
#!/bin/bash
while true
do
    echo "welcome"
    sleep 5
done
#创建Dockerfile配置文件，文件名称必须为Dockerfile，第一个字母必须大写
[root@docker 7]# vim Dockerfile 
[root@docker 7]# cat Dockerfile 
FROM centos     #从centos源镜像的基础上进行构建
LABEL MAINTATNER="DaMoWang.com"  #作者的名称
RUN ln -sfv /usr/share/zoneinfo/Asia/Shanghai /etc/localtime   #RUN：在镜像构建过程中运行命令
ADD docker.sh /home/test/   #从本地系统中把docker.sh文件添加到构建中的镜像的/home/test/目录下
RUN chmod +x /home/test/docker.sh   #在镜像构建过程中运行命令
CMD ["/home/test/docker.sh"]        #构建镜像完成时，最后执行的命令
#根据Dockfile配置文件构建一个自定义镜像
docker build -t damowang/centos7:1 .    #-t 指定镜像名称  ：1  设定镜像的tag标记
Sending build context to Docker daemon  3.072kB
Step 1/6 : FROM centos
 ---> 49f7960eb7e4
Step 2/6 : LABEL MAINTATNER="damowang"
 ---> Using cache
 ---> 79ac7152beab
Step 3/6 : RUN ln -sfv /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
 ---> Using cache
 ---> eb1f30c3f53f
Step 4/6 : ADD docker.sh /home/test/
 ---> Using cache
 ---> ffbac1722ac7
Step 5/6 : RUN chmod +x /home/test/docker.sh
 ---> Using cache
 ---> 002a6fb94e60
Step 6/6 : CMD ["/home/test/docker.sh"]
 ---> Using cache
 ---> 6e709ee70391
Successfully built 6e709ee70391        #构建成功
Successfully tagged damowang/centos7:1    

[root@Docker 7]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
damowang/centos7    1                   6e709ee70391        4 minutes ago       200MB
hello-world         latest              2cb0d9787c4d        5 days ago          1.85kB
centos              7                   49f7960eb7e4        5 weeks ago         200MB

Docker命令：run

运行一个本地镜像

[root@docker ~]# docker images
REPOSITORY           TAG                 IMAGE ID            CREATED             SIZE
damowang/centos7    1                   6e709ee70391        4 minutes ago       200MB
hello-world         latest              2cb0d9787c4d        5 days ago          1.85kB
centos              7                   49f7960eb7e4        5 weeks ago         200MB

[root@Docker 7]# docker run -d -it 6e709ee70391 /bin/bash
7f76e680570f6e3047acdff116cf5253a840bb8719a492e1f6c20e34bd343f11


#docker run：运行一个指定的images id
　　-d：放在后台运行
　　-i：可以进行命令交互
　　-t：制作一个伪终端用于登陆
　　6e709ee70391:镜像的ID

Docker命令：ps

查看已经运行的镜像的进程

[root@docker ~]# docker ps -a   #查看所有运行的镜像进程（包含退出的exit）
CONTAINER ID    IMAGE           COMMAND         CREATED         STATUS          PORTS           NAMES
7f76e680570f        6e709ee70391        "/bin/bash"         2 minutes ago       Up 2 minutes                            hungry_beaver

#STATUS：进程的状态，UP表示正在运行中，EXIT表示已经退出了。

Docker命令：attach

从本地系统中切入到某个STATUS状态是UP的镜像进程里

root@Docker 7]#  docker ps -a
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES
7f76e680570f        6e709ee70391        "/bin/bash"         7 minutes ago       Up 7 minutes                            hungry_beaver
[root@Docker 7]# docker attach 7f76e680570f   #切入到容器号为093e4fb8b09c的镜像进程里 
[root@7f76e680570f /]# ls     #已经进入容器里了
bin  etc   lib    media  opt   root  sbin  sys  usr
dev  home  lib64  mnt    proc  run   srv   tmp  var
[root@7f76e680570f /]# exit    #退出容器
exit
[root@Docker 7]# docker ps -a     #容器的进程的STATUS已经处于EXIT状态（之前是后台运行的，切入进去后执行exit就等于手动退出了）
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS                      PORTS               NAMES
7f76e680570f        6e709ee70391        "/bin/bash"         8 minutes ago       Exited (0) 13 seconds ago                       hungry_beaver

Docker命令：stop

用于停止一个正在运行着的容器进程

[root@Docker 7]# docker ps -a
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS                     PORTS               NAMES
7f76e680570f        6e709ee70391        "/bin/bash"         11 minutes ago      Exited (0) 2 minutes ago                       hungry_beaver
#再次在后台启动一个镜像
[root@Docker 7]# docker run -d -it 6e709ee70391 /bin/bash
a8dd8894050cca65230e70b1d1be40b620fc2bd3b67a642d68efdf7f2a38d42c
[root@Docker 7]# docker ps -a    #增加了一个容器进程
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS                     PORTS               NAMES
a8dd8894050c        6e709ee70391        "/bin/bash"         59 seconds ago      Up 58 seconds                                  priceless_shockley
7f76e680570f        6e709ee70391        "/bin/bash"         12 minutes ago      Exited (0) 4 minutes ago                       hungry_beaver
#停止一个运行着的容器进程
[root@Docker 7]# docker stop a8dd8894050c
a8dd8894050c
[root@Docker 7]# docker ps -a
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS                        PORTS               NAMES
a8dd8894050c        6e709ee70391        "/bin/bash"         2 minutes ago       Exited (137) 36 seconds ago                       priceless_shockley
7f76e680570f        6e709ee70391        "/bin/bash"         14 minutes ago      Exited (0) 6 minutes ago                          hungry_beaver

Docker命令：start

用于启动一个已经停止了的容器进程

CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS                            PORTS               NAMES
a8dd8894050c        6e709ee70391        "/bin/bash"         3 minutes ago       Exited (137) About a minute ago                       priceless_shockley
7f76e680570f        6e709ee70391        "/bin/bash"         15 minutes ago      Exited (0) 7 minutes ago                              hungry_beaver
[root@Docker 7]# docker start a8dd8894050c
a8dd8894050c
[root@Docker 7]# docker ps -a
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS                     PORTS               NAMES
a8dd8894050c        6e709ee70391        "/bin/bash"         5 minutes ago       Up 14 seconds                                  priceless_shockley
7f76e680570f        6e709ee70391        "/bin/bash"         17 minutes ago      Exited (0) 8 minutes ago                       hungry_beaver

Docker命令：rm

用于删除一个已经停止了的容器进程

[root@Docker 7]# docker ps -a
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS                     PORTS               NAMES
a8dd8894050c        6e709ee70391        "/bin/bash"         5 minutes ago       Up 14 seconds                                  priceless_shockley
7f76e680570f        6e709ee70391        "/bin/bash"         17 minutes ago      Exited (0) 8 minutes ago                       hungry_beaver
[root@Docker 7]# docker rm 7f76e680570f    #注意运行中的容器进程需要先stop，才能删除
7f76e680570f
[root@Docker 7]# docker ps -a
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES
a8dd8894050c        6e709ee70391        "/bin/bash"         7 minutes ago       Up 3 minutes                            priceless_shockley

Docker命令：rmi

用于删除一个未用作容器启动的本地镜像

[root@Docker 7]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
damowang/centos7    1                   6e709ee70391        31 minutes ago      200MB
hello-world         latest              2cb0d9787c4d        5 days ago          1.85kB
centos              7                   49f7960eb7e4        5 weeks ago         200MB
centos              latest              49f7960eb7e4        5 weeks ago         200MB

[root@Docker 7]# docker rmi -f 2cb0d9787c4d    #-f 强制删除（即便被占用）
Untagged: hello-world:latest
Untagged: hello-world@sha256:4b8ff392a12ed9ea17784bd3c9a8b1fa3299cac44aca35a85c90c5e3c7afacdc
Deleted: sha256:2cb0d9787c4dd17ef9eb03e512923bc4db10add190d3f84af63b744e353a9b34
Deleted: sha256:ee83fc5847cb872324b8a1f5dbfd754255367f4280122b4e2d5aee17818e31f5
[root@Docker 7]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
damowang/centos7    1                   6e709ee70391        33 minutes ago      200MB
centos              7                   49f7960eb7e4        5 weeks ago         200MB
centos              latest              49f7960eb7e4        5 weeks ago         200MB
[root@Docker 7]# docker rmi  6e709ee70391    #但要注意，被用作容器启动的镜像是不能删除的（需先rm删除容器进程）
Error response from daemon: conflict: unable to delete 6e709ee70391 (cannot be forced) - image is being used by running container a8dd8894050c
docker rmi -f 6e709ee70391
Error response from daemon: conflict: unable to delete 6e709ee70391 (cannot be forced) - image is being used by running container a8dd8894050c
[root@docker ~]# docker ps -a   #查看容器进程，被占用中
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES
a8dd8894050c        6e709ee70391        "/bin/bash"         17 minutes ago      Up 12 minutes                           priceless_shockley

Docker命令：commit

将一个更改过的容器进程的容器状态保存为一个新的镜像

[root@Docker 7]# docker ps -a    #查看启动的容器进程
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES
a8dd8894050c        6e709ee70391        "/bin/bash"         18 minutes ago      Up 13 minutes                           priceless_shockley
[root@Docker 7]# docker attach a8dd8894050c    #切入容器进程
[root@a8dd8894050c /]# ls
bin  etc   lib    media  opt   root  sbin  sys  usr
dev  home  lib64  mnt    proc  run   srv   tmp  var
[root@a8dd8894050c /]# mkdir damowang    #在容器进程里创建damowang目录
[root@a8dd8894050c /]# ls
bin       dev  home  lib64  mnt  proc  run   srv  tmp  var
damowang  etc  lib   media  opt  root  sbin  sys  usr
[root@a8dd8894050c /]# exit    #退出容器进程
exit
[root@Docker 7]# docker ps -a
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS                     PORTS               NAMES
a8dd8894050c        6e709ee70391        "/bin/bash"         20 minutes ago      Exited (0) 8 seconds ago                       priceless_shockley
[root@Docker 7]# docker commit a8dd8894050c damowang/centos:2    #将更改后的容器进程保存为一个新的镜像
sha256:0bfe626371890c061cbce5ac5b694b7223d512cb63a9386468ae6613f520c94f
[root@Docker 7]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
damowang/centos     2                   0bfe62637189        27 seconds ago      200MB    #保存成功
damowang/centos7    1                   6e709ee70391        41 minutes ago      200MB
centos              7                   49f7960eb7e4        5 weeks ago         200MB
centos              latest              49f7960eb7e4        5 weeks ago         200MB
#启动新保存的镜像
[root@Docker 7]# docker run -d -it 0bfe62637189 /bin/bash
711c165d7e4a030ce464ca43aee87afd9eab8e0359ae4cb591617c797b87da69
[root@Docker 7]# docker ps -a    #查看新镜像的容器进程
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS                     PORTS               NAMES
711c165d7e4a        0bfe62637189        "/bin/bash"         8 seconds ago       Up 7 seconds                                   heuristic_tereshkova
a8dd8894050c        6e709ee70391        "/bin/bash"         22 minutes ago      Exited (0) 2 minutes ago                       priceless_shockley
[root@Docker 7]# docker attach 711c165d7e4a    #切入新镜像的容器进程
[root@711c165d7e4a /]# ls -d  damowang     #我们发现之前创建的目录仍旧存在
damowang

Docker命令：exec

用于从本地操作系统上直接向容器进程发布执行命令并返回结果

docker ps -a
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS                     PORTS               NAMES
711c165d7e4a        0bfe62637189        "/bin/bash"         5 minutes ago       Up 3 seconds                                   heuristic_tereshkova
a8dd8894050c        6e709ee70391        "/bin/bash"         28 minutes ago      Exited (0) 7 minutes ago                       priceless_shockley
[root@Docker 7]# docker exec 711c165d7e4a ls /tmp/　　#查看容器进程里的/tmp目录下所有内容
ks-script-3QMvMi
yum.log
[root@Docker 7]# docker exec 711c165d7e4a ls -d /damowang　　#查看容器进程里/yunjisuan目录
/damowang

Docker命令：cp

用于在容器进程和本地系统之间复制文件

[root@Docker 7]# docker ps -a
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS                     PORTS               NAMES
711c165d7e4a        0bfe62637189        "/bin/bash"         7 minutes ago       Up About a minute                              heuristic_tereshkova
a8dd8894050c        6e709ee70391        "/bin/bash"         29 minutes ago      Exited (0) 9 minutes ago                       priceless_shockley
[root@Docker 7]# docker exec 711c165d7e4a ls /tmp/    #向容器进程发布命令
ks-script-3QMvMi
yum.log
[root@Docker 7]# docker cp 711c165d7e4a:/tmp/yum.log .
[root@Docker 7]# ls
Dockerfile  docker.sh  yum.log    #已经复制过来了
[root@Docker 7]# docker cp docker.sh 711c165d7e4a:/tmp    #将本地文件复制到容器进程里
[root@Docker 7]# docker exec 711c165d7e4a ls /tmp/
docker.sh    #复制成功
ks-script-3QMvMi
yum.log

Docker命令：create

用于创建一个容器进程，但是并不启动它

[root@Docker 7]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
damowang/centos     2                   0bfe62637189        15 minutes ago      200MB
damowang/centos7    1                   6e709ee70391        About an hour ago   200MB
centos              7                   49f7960eb7e4        5 weeks ago         200MB
centos              latest              49f7960eb7e4        5 weeks ago         200MB
[root@Docker 7]# docker create -it 0bfe62637189    #创建一个镜像的容器进程，但不直接启动
84d6659c1dd832f1a94e66e03d8f1c018afa24e7d558a2c5a61e1a624194e62b
[root@Docker 7]# docker ps -a
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS                      PORTS               NAMES
84d6659c1dd8        0bfe62637189        "/bin/bash"         12 seconds ago      Created                                         gallant_hoover    #创建状态并未启动
711c165d7e4a        0bfe62637189        "/bin/bash"         16 minutes ago      Up 10 minutes                                   heuristic_tereshkova
a8dd8894050c        6e709ee70391        "/bin/bash"         39 minutes ago      Exited (0) 18 minutes ago                       priceless_shockley
[root@Docker 7]# docker start 84d6659c1dd8 
84d6659c1dd8
[root@Docker 7]# docker ps -a
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS                      PORTS               NAMES
84d6659c1dd8        0bfe62637189        "/bin/bash"         2 minutes ago       Up 34 seconds                                   gallant_hoover
711c165d7e4a        0bfe62637189        "/bin/bash"         18 minutes ago      Up 12 minutes                                   heuristic_tereshkova
a8dd8894050c        6e709ee70391        "/bin/bash"         41 minutes ago      Exited (0) 20 minutes ago                       priceless_shockley

Docker命令：diff

查看容器进程与源镜像做对比，发生了改变的文件或文件夹

[root@Docker 7]# docker ps -a
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS                      PORTS               NAMES
84d6659c1dd8        0bfe62637189        "/bin/bash"         3 minutes ago       Up 2 minutes                                    gallant_hoover
711c165d7e4a        0bfe62637189        "/bin/bash"         20 minutes ago      Up 14 minutes                                   heuristic_tereshkova
a8dd8894050c        6e709ee70391        "/bin/bash"         42 minutes ago      Exited (0) 22 minutes ago                       priceless_shockley
[root@Docker 7]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
damowang/centos     2                   0bfe62637189        21 minutes ago      200MB
damowang/centos7    1                   6e709ee70391        About an hour ago   200MB
centos              7                   49f7960eb7e4        5 weeks ago         200MB
centos              latest              49f7960eb7e4        5 weeks ago         200MB
[root@Docker 7]# docker run -d -it 0bfe62637189    #启动一个镜像的容器进程f4b9ce8842f3f123f4d65dfc9192946c82562ebd683fcf9070005f8d186002a0
[root@Docker 7]# docker ps -a
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS                      PORTS               NAMES
f4b9ce8842f3        0bfe62637189        "/bin/bash"         17 seconds ago      Up 16 seconds                                   wonderful_aryabhata
84d6659c1dd8        0bfe62637189        "/bin/bash"         5 minutes ago       Up 3 minutes                                    gallant_hoover
711c165d7e4a        0bfe62637189        "/bin/bash"         21 minutes ago      Up 15 minutes                                   heuristic_tereshkova
a8dd8894050c        6e709ee70391        "/bin/bash"         44 minutes ago      Exited (0) 23 minutes ago                       priceless_shockley
[root@Docker 7]# docker attach f4b9ce8842f3    #切入容器进程
[root@f4b9ce8842f3 /]# cd /damowang/
[root@f4b9ce8842f3 damowang]# pwd
/damowang
[root@f4b9ce8842f3 damowang]# touch {1..10}    #在容器进程中创建文件
[root@f4b9ce8842f3 damowang]# ls
1  10  2  3  4  5  6  7  8  9
[root@f4b9ce8842f3 damowang]# exit    #退出容器进程
exit
[root@Docker 7]# docker diff f4b9ce8842f3    #查看容器进程的变化
C /damowang
A /damowang/1
A /damowang/10
A /damowang/2
A /damowang/3
A /damowang/4
A /damowang/5
A /damowang/6
A /damowang/7
A /damowang/8
A /damowang/9
C /root/.bash_history

Docker命令：events

时时监测容器的变化情况

[root@Docker ~]# docker events
2018-07-16T21:56:25.442638653+08:00 container export f4b9ce8842f3f123f4d65dfc9192946c82562ebd683fcf9070005f8d186002a0 (MAINTATNER=damowang, image=0bfe62637189, name=wonderful_aryabhata, org.label-schema.schema-version== 1.0     org.label-schema.name=CentOS Base Image     org.label-schema.vendor=CentOS     org.label-schema.license=GPLv2     org.label-schema.build-date=20180531)

#前台时时监控容器的变化若要检测，需要另外再起一个窗口进行操作

Docker命令：export

将容器进程的文件系统导出到本地

[root@Docker ~]# docker ps -a
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS                       PORTS               NAMES
f4b9ce8842f3        0bfe62637189        "/bin/bash"         About an hour ago   Up 2 minutes                                     wonderful_aryabhata
84d6659c1dd8        0bfe62637189        "/bin/bash"         2 hours ago         Exited (137) 6 minutes ago                       gallant_hoover
711c165d7e4a        0bfe62637189        "/bin/bash"         2 hours ago         Exited (137) 6 minutes ago                       heuristic_tereshkova
a8dd8894050c        6e709ee70391        "/bin/bash"         2 hours ago         Exited (0) 2 hours ago                           priceless_shockley
[root@Docker ~]# docker export f4b9ce8842f3 > test.tar　　#将容器进程导出成一个tar包
[root@Docker ~]# ls
anaconda-ks.cfg    dockerfile    test.tar

Docker命令：import

用于将export导出的文件系统创建为一个镜像

[root@Docker ~]# ls
[root@Docker ~]# docker import test.tar damowang/centos:3　　#将导出的tar包文件系统生成一个新的镜像
sha256:a46ed9ea14cb371ddd16ede6a137a7063794da27a0d0641a0bf441e29b0aa909
[root@Docker ~]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
damowang/centos     3                   a46ed9ea14cb        40 seconds ago      200MB
damowang/centos     2                   0bfe62637189        4 hours ago         200MB
damowang/centos7    1                   6e709ee70391        4 hours ago         200MB
centos              7                   49f7960eb7e4        5 weeks ago         200MB
centos              latest              49f7960eb7e4        5 weeks ago         200MB

Docker命令：history

用于查看一个镜像的历史修改纪录

[root@Docker ~]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
damowang/centos     3                   a46ed9ea14cb        2 minutes ago       200MB
damowang/centos     2                   0bfe62637189        4 hours ago         200MB
damowang/centos7    1                   6e709ee70391        4 hours ago         200MB
centos              7                   49f7960eb7e4        5 weeks ago         200MB
centos              latest              49f7960eb7e4        5 weeks ago         200MB
[root@Docker ~]# docker history a46ed9ea14cb
IMAGE               CREATED             CREATED BY          SIZE                COMMENT
a46ed9ea14cb        2 minutes ago                           200MB               Imported from -
[root@Docker ~]# docker history 0bfe62637189
IMAGE               CREATED             CREATED BY                                      SIZE                COMMENT
0bfe62637189        4 hours ago         /bin/bash                                       80B                 
6e709ee70391        5 hours ago         /bin/sh -c #(nop)  CMD ["/home/test/docker.s…   0B                  
002a6fb94e60        5 hours ago         /bin/sh -c chmod +x /home/test/docker.sh        88B                 
ffbac1722ac7        5 hours ago         /bin/sh -c #(nop) ADD file:5b33dd15349e0d728…   88B                 
eb1f30c3f53f        5 hours ago         /bin/sh -c ln -sfv /usr/share/zoneinfo/Asia/…   33B                 
79ac7152beab        5 hours ago         /bin/sh -c #(nop)  LABEL MAINTATNER=damowang    0B                  
49f7960eb7e4        5 weeks ago         /bin/sh -c #(nop)  CMD ["/bin/bash"]            0B                  
<missing>           5 weeks ago         /bin/sh -c #(nop)  LABEL org.label-schema.sc…   0B                  
<missing>           5 weeks ago         /bin/sh -c #(nop) ADD file:8f4b3be0c1427b158…   200MB

Docker命令：info

用于查看当前操作系统的docker运行信息

[root@Docker ~]# 
[root@Docker ~]# docker info
Containers: 2    #容器进程2个
 Running: 1    #正在运行状态的容器1个
 Paused: 0
 Stopped: 1    
Images: 8    #一共有8个镜像
Server Version: 18.03.1-ce
Storage Driver: overlay2
 Backing Filesystem: xfs
 Supports d_type: true
 Native Overlay Diff: true
Logging Driver: json-file
Cgroup Driver: cgroupfs
Plugins:
 Volume: local
 Network: bridge host macvlan null overlay
 Log: awslogs fluentd gcplogs gelf journald json-file logentries splunk syslog
Swarm: inactive
Runtimes: runc
Default Runtime: runc
Init Binary: docker-init
containerd version: 773c489c9c1b21a6d78b5c538cd395416ec50f88
runc version: 4fc53a81fb7c994640722ac585fa9ca548971871
init version: 949e6fa
Security Options:
 seccomp
  Profile: default
Kernel Version: 3.10.0-862.3.3.el7.x86_64
Operating System: CentOS Linux 7 (Core)
OSType: linux
Architecture: x86_64
CPUs: 1
Total Memory: 974.6MiB
Name: Docker
ID: L23S:WCPW:NHU5:UK46:5MRA:OJMB:TOKW:OMYH:CYB6:P5XA:VL2Q:65TL
Docker Root Dir: /var/lib/docker
Debug Mode (client): false
Debug Mode (server): false
Registry: https://index.docker.io/v1/
Labels:
Experimental: false
Insecure Registries:
 127.0.0.0/8
Registry Mirrors:
 https://registry.docker-cn.com/
Live Restore Enabled: false

Docker命令：inspect

查看某个镜像的详细信息

[root@Docker ~]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
damowang/centos     3                   a46ed9ea14cb        21 minutes ago      200MB
damowang/centos     2                   0bfe62637189        4 hours ago         200MB
damowang/centos7    1                   6e709ee70391        5 hours ago         200MB
centos              7                   49f7960eb7e4        5 weeks ago         200MB
centos              latest              49f7960eb7e4        5 weeks ago         200MB
[root@Docker ~]# docker inspect a46ed9ea14cb
[
    {
        "Id": "sha256:a46ed9ea14cb371ddd16ede6a137a7063794da27a0d0641a0bf441e29b0aa909",
        "RepoTags": [
            "damowang/centos:3"
        ],
        "RepoDigests": [],
        "Parent": "",
        "Comment": "Imported from -",
        "Created": "2018-07-16T15:52:27.076612643Z",
        "Container": "",
        "ContainerConfig": {
            "Hostname": "",
            "Domainname": "",
            "User": "",
            "AttachStdin": false,
            "AttachStdout": false,
            "AttachStderr": false,
            "Tty": false,
            "OpenStdin": false,
            "StdinOnce": false,
            "Env": null,
            "Cmd": null,
            "Image": "",
            "Volumes": null,
            "WorkingDir": "",
            "Entrypoint": null,
            "OnBuild": null,
            "Labels": null
        },
        "DockerVersion": "18.03.1-ce",
        "Author": "",
        "Config": {
            "Hostname": "",
            "Domainname": "",
            "User": "",
            "AttachStdin": false,
            "AttachStdout": false,
            "AttachStderr": false,
            "Tty": false,
            "OpenStdin": false,
            "StdinOnce": false,
            "Env": null,
            "Cmd": null,
            "Image": "",
            "Volumes": null,
            "WorkingDir": "",
            "Entrypoint": null,
            "OnBuild": null,
            "Labels": null
        },
        "Architecture": "amd64",
        "Os": "linux",
        "Size": 199678522,
        "VirtualSize": 199678522,
        "GraphDriver": {
            "Data": {
                "MergedDir": "/var/lib/docker/overlay2/1541e5357c7ddae19f6655a0cf5a7f002fe80e082abcff749b43c90fba1c7020/merged",
                "UpperDir": "/var/lib/docker/overlay2/1541e5357c7ddae19f6655a0cf5a7f002fe80e082abcff749b43c90fba1c7020/diff",
                "WorkDir": "/var/lib/docker/overlay2/1541e5357c7ddae19f6655a0cf5a7f002fe80e082abcff749b43c90fba1c7020/work"
            },
            "Name": "overlay2"
        },
        "RootFS": {
            "Type": "layers",
            "Layers": [
                "sha256:e54921b330060eb66addbb19163b4bb489584248689f405999cadd2693e99ee6"
            ]
        },
        "Metadata": {
            "LastTagTime": "2018-07-16T23:52:27.099320952+08:00"
        }
    }
]

Docker命令：kill

强行停止一个或多个正在运行状态的容器进程

[root@Docker ~]# docker ps -a
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES
3cc1ab69dc5a        a46ed9ea14cb        "/bin/bash"         11 seconds ago      Up 10 seconds                           mystifying_mirzakhani
[root@Docker ~]# docker kill 3cc1ab69dc5a
3cc1ab69dc5a
[root@Docker ~]# docker ps -a
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS                       PORTS               NAMES
3cc1ab69dc5a        a46ed9ea14cb        "/bin/bash"         47 seconds ago      Exited (137) 4 seconds ago                       mystifying_mirzakhani

Docker命令：save

用于将一个镜像的文件系统导出到本地（export导出的是容器）

#重新build一个镜像
[root@docker ~]# cd dockerfile/lib/centos/7/
[root@Docker 7]# 
[root@Docker 7]# docker build -t test:1 .
Sending build context to Docker daemon  3.584kB
Step 1/6 : FROM centos
 ---> 49f7960eb7e4
Step 2/6 : LABEL MAINTATNER="damowang"
 ---> Running in 30d86a376293
Removing intermediate container 30d86a376293
 ---> 1e840728b7e7
Step 3/6 : RUN ln -sfv /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
 ---> Running in 016410b91ccc
'/etc/localtime' -> '/usr/share/zoneinfo/Asia/Shanghai'
Removing intermediate container 016410b91ccc
 ---> 35d117846318
Step 4/6 : ADD docker.sh /home/test/
 ---> 9cd9a8848ed0
Step 5/6 : RUN chmod +x /home/test/docker.sh
 ---> Running in 9c1494f9ba1e
Removing intermediate container 9c1494f9ba1e
 ---> 176685b39742
Step 6/6 : CMD ["/home/test/docker.sh"]
 ---> Running in 3da643e31136
Removing intermediate container 3da643e31136
 ---> abc35d57c192
Successfully built abc35d57c192
Successfully tagged test:1
[root@Docker 7]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
test                1                   abc35d57c192        2 seconds ago      200MB
centos              7                   49f7960eb7e4        5 weeks ago         200MB
centos              latest              49f7960eb7e4        5 weeks ago         200MB
#save导出test：1这个镜像（也可以用id号）
[root@Docker 7]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED              SIZE
test                1                   abc35d57c192        About a minute ago   200MB
centos              7                   49f7960eb7e4        5 weeks ago          200MB
centos              latest              49f7960eb7e4        5 weeks ago          200MB
[root@Docker 7]# docker save test:1 > test.tar
[root@Docker 7]# ls
Dockerfile  docker.sh  test.tar  yum.log

Docker命令：load

用于将save导出到本地的tar包，重新加载为镜像（和源镜像的名字标识完全一样）

[root@Docker 7]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
test                1                   abc35d57c192        2 minutes ago       200MB
centos              7                   49f7960eb7e4        5 weeks ago         200MB
centos              latest              49f7960eb7e4        5 weeks ago         200MB
[root@Docker 7]# docker rmi -f test:1    #删除镜像test：1
Untagged: test:1
Deleted: sha256:abc35d57c19219bc97806d54382a60745276b50b12d967c80afd334a944e6be4
Deleted: sha256:176685b397420e52b6024fce07991a7157bdd1c3e68be7035e156c91fd6f6b61
Deleted: sha256:3ba486b5820d4edb5a41bb3355d50307c768712ed2e6afce6455b90a977b0a93
Deleted: sha256:9cd9a8848ed022998eb1a51fceaabdf3d49e4ba8f7ff782b5ffda0bee6503db3
Deleted: sha256:b72e52a36c1a3d07366d5b28079ff9eb7f306ad023c1d0432f99f86441ff18fa
Deleted: sha256:35d1178463185fac4647212533e83ce88efb4f5f4612cc3b4422f9be1d3b1ed8
Deleted: sha256:6334246fd055cb644551e76a872e4119df37f96b1d51e36eb545cfc78d480086
Deleted: sha256:1e840728b7e7a26279fcc059f493dab49f73a068ad5aebf08d4ecdc8d6ec0062
[root@Docker 7]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
centos              7                   49f7960eb7e4        5 weeks ago         200MB
centos              latest              49f7960eb7e4        5 weeks ago         200MB
[root@Docker 7]# docker load < test.tar 
18991d1930a2: Loading layer  2.048kB/2.048kB
756520987930: Loading layer  3.584kB/3.584kB
4a48d0dbed96: Loading layer  3.072kB/3.072kB
Loaded image: test:1
[root@Docker 7]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
test                1                   abc35d57c192        4 minutes ago       200MB  #和原来的镜像完全一样  
centos              7                   49f7960eb7e4        5 weeks ago         200MB
centos              latest              49f7960eb7e4        5 weeks ago         200MB

Docker命令：logs

用于输出一个容器进程内的操作日志

[root@Docker 7]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
test                1                   abc35d57c192        5 minutes ago       200MB
centos              7                   49f7960eb7e4        5 weeks ago         200MB
centos              latest              49f7960eb7e4        5 weeks ago         200MB
[root@Docker 7]# docker run -d -it test:1
e01ec5ecc6927707619a8737e89d5ae30167a17188dc582672519dd0f3057e7b
[root@Docker 7]# docker ps -a
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS               NAMES
e01ec5ecc692        test:1              "/home/test/docker.sh"   2 seconds ago       Up 1 seconds                            distracted_curran
[root@Docker 7]# docker logs e01ec5ecc692
welcome
welcome
welcome
welcome
welcome
welcome
welcome
welcome
welcome
welcome
welcome
welcome
welcome
[root@Docker 7]# docker logs --tail 5 e01ec5ecc692    #只显示容器日志的后5行
welcome
welcome
welcome
welcome
welcome

Docker命令：pause && unpause

用于将一个或多个容器的进程暂停和恢复

[root@Docker 7]# docker ps -a
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS               NAMES
e01ec5ecc692        test:1              "/home/test/docker.sh"   2 minutes ago       Up 2 minutes                            distracted_curran
[root@Docker 7]# docker pause e01ec5ecc692    #暂停容器进程
e01ec5ecc692
[root@Docker 7]# docker ps -a
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS                  PORTS               NAMES
e01ec5ecc692        test:1              "/home/test/docker.sh"   3 minutes ago       Up 3 minutes (Paused)                       distracted_curran
[root@Docker 7]# docker unpause e01ec5ecc692    #恢复容器进程
e01ec5ecc692
[root@Docker 7]# docker ps -a
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS               NAMES
e01ec5ecc692        test:1              "/home/test/docker.sh"   3 minutes ago       Up 3 minutes                            distracted_curran

Docker命令：port

用于列出一个容器的端口映射及协议

[root@Docker 7]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
test                1                   abc35d57c192        10 minutes ago      200MB
centos              7                   49f7960eb7e4        5 weeks ago         200MB
centos              latest              49f7960eb7e4        5 weeks ago         200MB
[root@Docker 7]# docker run -d -it -p 2222:22 test:1    #启动一个镜像的容器进程 -p 指定本地2222端口映射到容器的22端口
376d22e0957cf8216a9aabb417870384e896934566a20d8858374c0bf6002d9c
[root@Docker 7]# docker ps -a
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                  NAMES
376d22e0957c        test:1              "/home/test/docker.sh"   29 seconds ago      Up 28 seconds       0.0.0.0:2222->22/tcp   gallant_sinoussi
e01ec5ecc692        test:1              "/home/test/docker.sh"   5 minutes ago       Up 5 minutes                               distracted_curran

Docker命令：rename

给容器进程重命名

[root@Docker 7]# docker ps -a
CONTAINER ID        IMAGE               COMMAND                  CREATED              STATUS              PORTS                  NAMES
376d22e0957c        test:1              "/home/test/docker.sh"   About a minute ago   Up About a minute   0.0.0.0:2222->22/tcp   gallant_sinoussi
e01ec5ecc692        test:1              "/home/test/docker.sh"   6 minutes ago        Up 6 minutes                               distracted_curran
[root@Docker 7]# docker rename gallant_sinoussi damowang
[root@Docker 7]# docker ps -a
CONTAINER ID        IMAGE               COMMAND                  CREATED              STATUS              PORTS                  NAMES
376d22e0957c        test:1              "/home/test/docker.sh"   About a minute ago   Up About a minute   0.0.0.0:2222->22/tcp   damowang
e01ec5ecc692        test:1              "/home/test/docker.sh"   6 minutes ago        Up 6 minutes                               distracted_curran

Docker命令：restart

重启一个容器进程

[root@Docker 7]# docker ps -a
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                  NAMES
376d22e0957c        test:1              "/home/test/docker.sh"   2 minutes ago       Up 2 minutes        0.0.0.0:2222->22/tcp   damowang
e01ec5ecc692        test:1              "/home/test/docker.sh"   7 minutes ago       Up 7 minutes                               distracted_curran
[root@Docker 7]# docker restart 376d22e0957c
376d22e0957c
[root@Docker 7]# docker ps -a
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                  NAMES
376d22e0957c        test:1              "/home/test/docker.sh"   2 minutes ago       Up 3 seconds        0.0.0.0:2222->22/tcp   damowang
e01ec5ecc692        test:1              "/home/test/docker.sh"   8 minutes ago       Up 8 minutes                               distracted_curran

Docker命令：stats

用于时时输出容器的资源使用情况

[root@Docker 7]# docker ps -a
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                  NAMES
376d22e0957c        test:1              "/home/test/docker.sh"   4 minutes ago       Up About a minute   0.0.0.0:2222->22/tcp   damowang
e01ec5ecc692        test:1              "/home/test/docker.sh"   9 minutes ago       Up 9 minutes                               distracted_curran
[root@Docker 7]# docker stats 376d22e0957c

CONTAINER ID        NAME                CPU %               MEM USAGE / LIMIT   MEM %               NET I/O             BLOCK I/O           PIDS
376d22e0957c        damowang            0.00%               288KiB / 974.6MiB   0.03%               648B / 0B           0B / 0B             2

#--no-tream只输出一次
[root@Docker 7]# docker stats 376d22e0957c --no-stream
CONTAINER ID        NAME                CPU %               MEM USAGE / LIMIT   MEM %               NET I/O             BLOCK I/O           PIDS
376d22e0957c        damowang            0.00%               284KiB / 974.6MiB   0.03%               648B / 0B           0B / 0B             2

Docker命令：tag

用于从一个指定的镜像创建另外一个镜像

[root@Docker 7]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
test                1                   abc35d57c192        18 minutes ago      200MB
centos              7                   49f7960eb7e4        5 weeks ago         200MB
centos              latest              49f7960eb7e4        5 weeks ago         200MB
[root@Docker 7]# docker tag test:1 test:2
[root@Docker 7]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
test                1                   abc35d57c192        19 minutes ago      200MB
test                2                   abc35d57c192        19 minutes ago      200MB
centos              7                   49f7960eb7e4        5 weeks ago         200MB
centos              latest              49f7960eb7e4        5 weeks ago         200MB
[root@Docker 7]# docker rmi test:2
Untagged: test:2
[root@Docker 7]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
test                1                   abc35d57c192        19 minutes ago      200MB
centos              7                   49f7960eb7e4        5 weeks ago         200MB
centos              latest              49f7960eb7e4        5 weeks ago         200MB
[root@Docker 7]# docker tag abc35d57c192 test:2
[root@Docker 7]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
test                1                   abc35d57c192        19 minutes ago      200MB
test                2                   abc35d57c192        19 minutes ago      200MB
centos              7                   49f7960eb7e4        5 weeks ago         200MB
centos              latest              49f7960eb7e4        5 weeks ago         200MB

Docker命令：top

用于显示指定容器的进程信息

[root@Docker 7]# docker ps -a
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                  NAMES
376d22e0957c        test:1              "/home/test/docker.sh"   8 minutes ago       Up 6 minutes        0.0.0.0:2222->22/tcp   damowang
e01ec5ecc692        test:1              "/home/test/docker.sh"   14 minutes ago      Up 14 minutes                              distracted_curran
[root@Docker 7]# docker top 376d22e0957c
UID                 PID                 PPID                C                   STIME               TTY                 TIME                CMD
root                2644                2629                0                   00:37               pts/0               00:00:00            /bin/bash /home/test/docker.sh
root                2893                2644                0                   00:44               pts/0               00:00:00            sleep 5

Docker命令：update

用于调整一个或多个容器的启动配置

[root@Docker 7]# docker update --help

Usage:    docker update [OPTIONS] CONTAINER [CONTAINER...]

Update configuration of one or more containers

Options:
      --blkio-weight uint16        Block IO (relative weight), between 10 and 1000, or
                                   0 to disable (default 0)
      --cpu-period int             Limit CPU CFS (Completely Fair Scheduler) period
      --cpu-quota int              Limit CPU CFS (Completely Fair Scheduler) quota
      --cpu-rt-period int          Limit the CPU real-time period in microseconds
      --cpu-rt-runtime int         Limit the CPU real-time runtime in microseconds
  -c, --cpu-shares int             CPU shares (relative weight)
      --cpus decimal               Number of CPUs　　#调整CPU
      --cpuset-cpus string         CPUs in which to allow execution (0-3, 0,1)
      --cpuset-mems string         MEMs in which to allow execution (0-3, 0,1)
      --kernel-memory bytes        Kernel memory limit
  -m, --memory bytes               Memory limit　　#调整内存
      --memory-reservation bytes   Memory soft limit
      --memory-swap bytes          Swap limit equal to memory plus swap: '-1' to
                                   enable unlimited swap
      --restart string             Restart policy to apply when a container exits

Docker命令：version and wait

version用于显示docker的版本信息
wait用于捕捉一个或多个容器的退出状态,并返回退出状态码

#显示docker版本信息
[root@Docker 7]# docker version
Client:
 Version:      18.03.1-ce
 API version:  1.37
 Go version:   go1.9.5
 Git commit:   9ee9f40
 Built:        Thu Apr 26 07:20:16 2018
 OS/Arch:      linux/amd64
 Experimental: false
 Orchestrator: swarm

Server:
 Engine:
  Version:      18.03.1-ce
  API version:  1.37 (minimum version 1.12)
  Go version:   go1.9.5
  Git commit:   9ee9f40
  Built:        Thu Apr 26 07:23:58 2018
  OS/Arch:      linux/amd64
  Experimental: false


#监听容器的退出状态并返回状态码
[root@Docker 7]# docker ps -a
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                  NAMES
376d22e0957c        test:1              "/home/test/docker.sh"   12 minutes ago      Up 10 minutes       0.0.0.0:2222->22/tcp   damowang
e01ec5ecc692        test:1              "/home/test/docker.sh"   18 minutes ago      Up 18 minutes                              distracted_curran
[root@Docker 7]# docker wait 376d22e0957c    #需要在开一个窗口stop这个容器进程再查看
137

Docker命令：login && logout && push

login用于登陆docker hub官方公有仓库
logout用于登出docker hub官方公有仓库
push用于将本地镜像提交到docker hub

由于docker hub国内已经无法注册，因此无法演示上述内容

DockerHub官方公有镜像仓库：https://hub.docker.com/

管理应用程序数据

Volume和Bind Mount

将Docker主机数据挂载到容器

Docker提供三种不同方式将数据从宿主机挂载到容器中：volumes，bind mounts和tmpfs。

volumes：Docker管理宿主机文件系统的一部分（/var/lib/docker/volumes）
bind mounts:可以存储在宿主机系统的任意位置
tmpfs：挂载存储在宿主机系统的内存中，而不会写入宿主机的文件系统

Volume

#创建一个卷
[root@Docker ~]# docker volume create nginx-vol
nginx-vol
[root@Docker ~]# docker volume ls
DRIVER              VOLUME NAME
local               nginx-vol
[root@Docker ~]# docker volume inspect nginx-vol 
[
    {
        "CreatedAt": "2018-07-17T02:16:40+08:00",    #创建时间
        "Driver": "local",    #驱动
        "Labels": {},
        "Mountpoint": "/var/lib/docker/volumes/nginx-vol/_data",     #挂载点
        "Name": "nginx-vol",    #卷名
        "Options": {},
        "Scope": "local"
    }
]
#下载一个nginx官方镜像
[root@Docker ~]# docker pull nginx
Using default tag: latest
latest: Pulling from library/nginx
683abbb4ea60: Pull complete 
a470862432e2: Pull complete 
977375e58a31: Pull complete 
Digest: sha256:a65beb8c90a08b22a9ff6a219c2f363e16c477b6d610da28fe9cba37c2c3a2ac
Status: Downloaded newer image for nginx:latest
[root@Docker ~]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
test                1                   abc35d57c192        2 hours ago         200MB
test                2                   abc35d57c192        2 hours ago         200MB
nginx               latest              3c5a05123222        10 days ago         109MB
centos              7                   49f7960eb7e4        5 weeks ago         200MB
centos              latest              49f7960eb7e4        5 weeks ago         200MB
[root@Docker ~]# docker run -dit --name=nginx-test --mount src=nginx-vol,dst=/usr/share/nginx/html nginx
cd5c493d1633074f7fe2485f626bcda38ea96a320e08cbe40368f450445658f8

--name：容器的名字
--mount：挂载
src：源卷的名字
dst：挂载到容器中的路径

[root@Docker ~]#  docker ps -a
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS                     PORTS               NAMES
cd5c493d1633        nginx               "nginx -g 'daemon of…"   8 seconds ago       Up 7 seconds               80/tcp              nginx-test
376d22e0957c        test:1              "/home/test/docker.sh"   2 hours ago         Exited (137) 2 hours ago                       damowang
e01ec5ecc692        test:1              "/home/test/docker.sh"   2 hours ago         Up 2 hours                                     distracted_curran
#向容器中的挂载目录创建文件，查看是否挂载成功
[root@Docker ~]# docker exec nginx-test touch /usr/share/nginx/html/test.txt   
[root@Docker ~]# docker exec nginx-test ls /usr/share/nginx/html/
50x.html
index.html
test.txt    #成功写入
[root@docker 7]# ls /var/lib/docker/volumes/nginx-vol/_data/
50x.html  index.html  test.txt  #成功
#清理容器进程
[root@Docker ~]# docker ps -a
CONTAINER ID        IMAGE               COMMAND                  CREATED              STATUS                     PORTS               NAMES
cd5c493d1633        nginx               "nginx -g 'daemon of…"   About a minute ago   Up About a minute          80/tcp              nginx-test
376d22e0957c        test:1              "/home/test/docker.sh"   2 hours ago          Exited (137) 2 hours ago                       damowang
e01ec5ecc692        test:1              "/home/test/docker.sh"   2 hours ago          Up 2 hours                                     distracted_curran
[root@Docker ~]# docker stop nginx-test
nginx-test
[root@Docker ~]# docker rm nginx-test
nginx-test
[root@Docker ~]# docker ps -a
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS                     PORTS               NAMES
376d22e0957c        test:1              "/home/test/docker.sh"   2 hours ago         Exited (137) 2 hours ago                       damowang
e01ec5ecc692        test:1              "/home/test/docker.sh"   2 hours ago         Up 2 hours                                     distracted_curran
[root@Docker ~]# ls /var/lib/docker/volumes/nginx-vol/_data/
50x.html  index.html  test.txt     #清理容器后，挂载的卷的数据仍旧存在
#重新启动镜像nginx的容器进程
[root@Docker ~]# docker run -dit --name nginx-test -p 88:80 --mount src=nginx-vol,dst=/usr/share/nginx/html nginx
ef4c927e1f49e1774525c47fbe483fd8fb0abe7672488bc5ba45ada5d0310cc4
[root@Docker ~]# docker ps -a
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS                     PORTS                NAMES
ef4c927e1f49        nginx               "nginx -g 'daemon of…"   5 seconds ago       Up 4 seconds               0.0.0.0:88->80/tcp   nginx-test
376d22e0957c        test:1              "/home/test/docker.sh"   2 hours ago         Exited (137) 2 hours ago                        damowang
e01ec5ecc692        test:1              "/home/test/docker.sh"   2 hours ago         Up 2 hours                                      distracted_curran

docker run的-p参数：指定端口的映射，88：80的意思就是将宿主机88端口的访问映射到容器进程的80端口

通过浏览器访问宿主机的88端口，进而访问容器进程的80端口

#在数据卷nginx-vol里换一个网页在访问
[root@Docker ~]# ls /var/lib/docker/volumes/nginx-vol/_data/
50x.html  index.html  test.txt
[root@Docker ~]# rm -rf /var/lib/docker/volumes/nginx-vol/_data/*
[root@Docker ~]# echo "my name's damowang" > /var/lib/docker/volumes/nginx-vol/_data/index.html

启动一个镜像nginx的进程，让两个nginx的容器进程公用一个数据卷nginx-vol

[root@Docker ~]# docker run -dit --name nginx-test2 -p 89:80 --mount src=nginx-vol,dst=/usr/share/nginx/html nginx
9cedd1d6a884bbd23ea28fa95ff415e4296d6b7a103378463545c85eee468df3
[root@Docker ~]# docker ps -a
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                NAMES
9cedd1d6a884        nginx               "nginx -g 'daemon of…"   50 seconds ago      Up 49 seconds       0.0.0.0:89->80/tcp   nginx-test2
ef4c927e1f49        nginx               "nginx -g 'daemon of…"   14 minutes ago      Up 14 minutes       0.0.0.0:88->80/tcp   nginx-test

访问docker宿主机的89端口

Bind Mounts

[root@Docker ~]# docker ps -a
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                NAMES
9cedd1d6a884        nginx               "nginx -g 'daemon of…"   2 minutes ago       Up 2 minutes        0.0.0.0:89->80/tcp   nginx-test2
ef4c927e1f49        nginx               "nginx -g 'daemon of…"   15 minutes ago      Up 15 minutes       0.0.0.0:88->80/tcp   nginx-test
[root@Docker ~]# docker run -dit --name nginx-test3 -p 90:80 --mount type=bind,src=/var/lib/docker/volumes/nginx-vol/_data,dst=/usr/share/nginx/html nginx
fa64fffd4db42f82d2e49e6a67d7bc27e4f400ab8705675e7f7564db2e482bb8
[root@Docker ~]# docker ps -a
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                NAMES
fa64fffd4db4        nginx               "nginx -g 'daemon of…"   5 seconds ago       Up 3 seconds        0.0.0.0:90->80/tcp   nginx-test3
9cedd1d6a884        nginx               "nginx -g 'daemon of…"   2 minutes ago       Up 2 minutes        0.0.0.0:89->80/tcp   nginx-test2
ef4c927e1f49        nginx               "nginx -g 'daemon of…"   16 minutes ago      Up 16 minutes       0.0.0.0:88->80/tcp   nginx-test

访问docker宿主机的90端口

bind mounts可以挂载宿主机上的任意目录，而volume先得创建后才能挂载

实战容器部署LNMP网站平台

下载一个wordpress博客　　

wget https://cn.wordpress.org/wordpress-4.7.4-zh_CN.tar.gz

创建MySQL数据库容器

#下载MySQL5.7版本镜像
[root@Docker ~]# docker pull mysql:5.7
5.7: Pulling from library/mysql
683abbb4ea60: Already exists 
0550d17aeefa: Pull complete 
7e26605ddd77: Pull complete 
9882737bd15f: Pull complete 
999c06ab75f6: Pull complete 
c71d695f9937: Pull complete 
c38f847c1491: Pull complete 
74f9c61f40bf: Pull complete 
30b252a90a12: Pull complete 
9f92ebb7da55: Pull complete 
90303981d276: Pull complete 
Digest: sha256:1203dfba2600f140b74e375a354b1b801fa1b32d6f80fdee5f155d1e9f38c841
Status: Downloaded newer image for mysql:5.7
[root@Docker ~]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
nginx               latest              3c5a05123222        10 days ago         109MB
mysql               5.7                 66bc0f66b7af        2 weeks ago         372MB
centos              7                   49f7960eb7e4        5 weeks ago         200MB
centos              latest              49f7960eb7e4        5 weeks ago         200MB
#创建一个自定义网络
[root@Docker ~]# docker network create lnmp
2b1f72c8c9d1cda46549081ef807d12925363aa36cf0d2750cdc990c13b31d23
[root@Docker ~]# docker network ls
NETWORK ID          NAME                DRIVER              SCOPE
a2232bb435d4        bridge              bridge              local
31ad8236c965        host                host                local
2b1f72c8c9d1        lnmp                bridge              local     #默认为网桥
4d18e42bc424        none                null                local
#启动MySQL数据库容器
[root@Docker ~]# docker run -dit --name lnmp_mysql --network lnmp -p 3306:3306 --mount src=mysql-vol,dst=/var/lib/mysql -e MYSQL_ROOT_PASSWORD=475541270 mysql:5.7 --character-set-server=utf8
d5f911e7d17415c64695363619917925f9f23b2b17edd1ec2131f7bcce2e9542
[root@Docker ~]# docker ps -a
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                    NAMES
d5f911e7d174        mysql:5.7           "docker-entrypoint.s…"   18 seconds ago      Up 17 seconds       0.0.0.0:3306->3306/tcp   lnmp_mysql
fa64fffd4db4        nginx               "nginx -g 'daemon of…"   12 minutes ago      Up 12 minutes       0.0.0.0:90->80/tcp       nginx-test3
9cedd1d6a884        nginx               "nginx -g 'daemon of…"   15 minutes ago      Up 15 minutes       0.0.0.0:89->80/tcp       nginx-test2
ef4c927e1f49        nginx               "nginx -g 'daemon of…"   28 minutes ago      Up 28 minutes       0.0.0.0:88->80/tcp       nginx-test

自定义网络lnmp如果不提前创建的话，在启动容器进程时会报错
如果没有提前pull好mysql:5.6那么容器在启动时会自动下载对应镜像
如果没有提前docker volume create mysql-vol，那么容器启动时会自动创建

#查看容器lnmp_mysql的日志输出
[root@Docker ~]# docker logs lnmp_mysql

#查看容器里启动的进程
[root@Docker ~]# docker top lnmp_mysql
UID                 PID                 PPID                C                   STIME               TTY                 TIME                CMD
polkitd             5363                5347                0                   02:49               pts/0               00:00:00            mysqld --character-set-server=utf8

向容器里的Mysql创建一个库

[root@Docker ~]# docker exec lnmp_mysql sh -c 'exec mysql -uroot -p"$MYSQL_ROOT_PASSWORD" -e"create database bdk"'
mysql: [Warning] Using a password on the command line interface can be insecure.

在docker宿主机上安装mysql的客户端通过端口映射访问容器内的mysql

因为已经将mysql容器的3306端口映射到了docker宿主机的3306，因此我们访问本地即可

#安装mysql客户端
[root@docker ~]# yum -y install mysql
#查看本机IP地址
[root@Docker ~]# hostname -I | xargs -n1 | head -1
192.168.94.103

#远程方式连接docker宿主机的3306端口
[root@Docker ~]# mysql -h192.168.94.103 -P3306 -uroot -p475541270
mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 3
Server version: 5.7.22 MySQL Community Server (GPL)

Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| bdk                |        #已成功创建bdk库
| mysql              |
| performance_schema |
| sys                |
+--------------------+
5 rows in set (0.00 sec)

创建nginx+PHP环境容器

#创建一个网页目录
[root@Docker ~]# mkdir -p /app/damowang
[root@Docker ~]# ll -d /app/damowang
drwxr-xr-x 2 root root 6 7月  17 03:00 /app/damowang

#下载richarvey/nginx-php-fpm镜像
[root@docker ~]# docker pull richarvey/nginx-php-fpm
[root@Docker ~]# docker images
REPOSITORY                TAG                 IMAGE ID            CREATED             SIZE
nginx                     latest              3c5a05123222        10 days ago         109MB
richarvey/nginx-php-fpm   latest              26c0e6f09c52        11 days ago         300MB
mysql                     5.7                 66bc0f66b7af        2 weeks ago         372MB
centos                    7                   49f7960eb7e4        5 weeks ago         200MB
centos                    latest              49f7960eb7e4        5 weeks ago         200MB

#启动richarvey/nginx-php-fpm镜像的容器
[root@Docker ~]# docker run -dit --name lnmp_web --network lnmp -p 88:80 --mount type=bind,src=/app/damowang,dst=/var/www/html richarvey/nginx-php-fpm
56a0139a59f6ac18520a7edeece8fc340a65801afaa7c8e72a6d17ae8c25deff
[root@Docker ~]# docker ps -a
CONTAINER ID        IMAGE                     COMMAND                  CREATED             STATUS              PORTS                                   NAMES
56a0139a59f6        richarvey/nginx-php-fpm   "docker-php-entrypoi…"   2 minutes ago       Up 2 minutes        443/tcp, 9000/tcp, 0.0.0.0:88->80/tcp   lnmp_web
d5f911e7d174        mysql:5.7                 "docker-entrypoint.s…"   18 minutes ago      Up 18 minutes       0.0.0.0:3306->3306/tcp                  lnmp_mysql

解压wordpress到网页目录/app/damowang下

[root@Docker ~]# tar xf wordpress-4.7.4-zh_CN.tar.gz -C /app/damowang/
[root@Docker ~]# cd /app/damowang/
[root@Docker damowang]# ls
wordpress
[root@Docker damowang]#

博客wordpress访问测试

指定本机ip地址的88端口如果不通 , 那么就在 ip:88/wordpress/ 后面加上index.php

或者关闭 iptables 和 firewall

关闭selinux

posted @ 2018-07-20 18:05 damowang~ 阅读(956) 评论(0) 编辑收藏举报

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