构建一个简单的docker镜像

1，下载镜像

首先，我们需要一个系统，以官方的centos为例，先pull下来

[root@zabbix-3 ~]# docker pull centos
Using default tag: latest
latest: Pulling from library/centos
a3ed95caeb02: Already exists 
a3ed95caeb02: Already exists 
Digest: sha256:1a62cd7c773dd5c6cf08e2e28596f6fcc99bd97e38c9b324163e0da90ed27562
Status: Image is up to date for centos:latest
[root@zabbix-3 ~]# 

2，在启动容器，进行编译安装

[root@zabbix-3 ~]# docker run --name nginx-create -it centos 
[root@e0d020800f10 /]# 

在容器中安装常用包和依赖包

[root@e0d020800f10 /]# yum install wget gcc gcc-c++ make openssl-devel -y
[root@e0d020800f10 /]# wget -P /usr/local/src/ http://nginx.org/download/nginx-1.10.1.tar.gz
[root@e0d020800f10 /]# wget -P /usr/local/src/ http://tenet.dl.sourceforge.net/project/pcre/pcre/8.39/pcre-8.39.tar.gz
[root@e0d020800f10 src]# cd /usr/local/src/
[root@e0d020800f10 src]# tar xf nginx-1.10.1.tar.gz 
[root@e0d020800f10 src]# tar xf pcre-8.39.tar.gz 
[root@e0d020800f10 src]# useradd -s /sbin/nologin -M nginx
[root@e0d020800f10 src]# cd nginx-1.10.1
[root@e0d020800f10 nginx-1.10.1]# ./configure 
--prefix=/usr/local/nginx 
--conf-path=/etc/nginx/nginx.conf 
--user=nginx 
--group=nginx 
--error-log-path=/var/log/nginx/error.log 
--http-log-path=/var/log/nginx/access.log 
--pid-path=/var/run/nginx/nginx.pid 
--lock-path=/var/lock/nginx.lock 
--with-http_ssl_module 
--with-http_stub_status_module 
--with-http_gzip_static_module 
--with-http_flv_module 
--with-http_mp4_module 
--with-pcre=/usr/local/src/pcre-8.39
[root@e0d020800f10 nginx-1.10.1]# make && make install
[root@e0d020800f10 nginx-1.10.1]# sed -i '2 idaemon off;' /etc/nginx/nginx.conf

3， commit提交

而后退出，commit提交，多次commit提交名称不能一致

[root@zabbix-3 ~]# docker commit -m "v3" a1359ffc377f mark/nginx:v3
sha256:18b54107232173c19e827005ccf2582b10ff316c224e6c6899ecc9ed19afc0c0

4，提交完成查看

[root@zabbix-3 ~]# docker images 
REPOSITORY                       TAG                 IMAGE ID            CREATED             SIZE
mark/nginx                       v3                  57289bc1d1f0        3 minutes ago       401.6 MB
mark/nginx                       v2                  b20b274f88ee        4 minutes ago       401.6 MB
mark/nginx                       v1                  18b541072321        About an hour ago   401.6 MB
registry.ds.com/zabbix-3.0-xxl   latest              59ac231a6d23        7 days ago          745.4 MB
centos                           latest              904d6c400333        3 weeks ago         196.7 MB
registry.ds.com/centos           latest              904d6c400333        3 weeks ago         196.7 MB
nginx                            latest              0d409d33b27e        3 weeks ago         182.7 MB
registry.ds.com/nginx            latest              0d409d33b27e        3 weeks ago         182.7 MB
[root@zabbix-3 ~]# 

5，启动

当提交完成且出现在images中后，才可以映射端口来启动

[root@zabbix-3 ~]# docker run -d -p 100:80 mark/nginx:v3 /usr/local/nginx/sbin/nginx
59e7cc86f4815245ff8b97962d600a2008910b36795a374704ce547bfd79671d
[root@zabbix-3 ~]# docker ps -l
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                 NAMES
da346dfe0477        mark/nginx:v3       "/usr/local/nginx/sbi"   4 minutes ago       Up 4 minutes        0.0.0.0:100->80/tcp   big_khorana
[root@zabbix-3 ~]#