1安装docker基本环境
1首先创建Docker的yum仓库
[root@jian ~]# vi /etc/yum.repos.d/docker.repo
[dockerrepo]
name=Docker Repository
baseurl=https://yum.dockerproject.org/repo/main/centos/$releasever/
enabled=1
gpgcheck=1
gpgkey=https://yum.dockerproject.org/gpg
2启动docker服务
[root@jian ~]# systemctl start docker
3下载一个docker镜像
这里选择最基本的centos镜像即可
[root@jian ~]# docker search centos
NAME DESCRIPTION STARS OFFICIAL AUTOMATED
centos The
official build of
CentOS. 4716 [OK]
[root@jian ~]# docker
pull centos
Using default tag: latest
latest: Pulling from library/centos
256b176beaff: Pull complete
Digest:
sha256:6f6d986d425aeabdc3a02cb61c02abb2e78e57357e92417d6d58332856024faf
Status: Downloaded newer image for centos:latest
[root@jian ~]# docker images
REPOSITORY TAG IMAGE
ID CREATED SIZE
centos latest 5182e96772bf 6
weeks ago 200MB
4启动镜像
启动后会将基于该镜像的容器id作为回显打印在屏幕上
[root@jian ~]# docker run -itd centos
f703c011abe3f17df0b805009dedd66de663bce6d8c6a84913bf231503951f59
5进入容器
[root@jian ~]# docker exec -it
f703c011abe3f17df0b805009dedd66de663bce6d8c6a84913bf231503951f59 bash
2安装辅助工具
因为下载的镜像中是一个精简版，需要安装一些工具方便我们使用
1安装网络工具包这样我们就可以查看当前容器的ip地址
[root@f703c011abe3 ~]# yum install net-tools –y
[root@f703c011abe3 ~]# ifconfig
eth0:
flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet
172.17.0.3 netmask 255.255.0.0 broadcast 0.0.0.0
2安装ssh工具包
[root@f703c011abe3 ~]# yum install passwd openssl openssh-server
openssh-client –y
3安装mariadb
[root@jian ~]# scp -r mariadb-10.3.9-linux-x86_64.tar.gz
172.17.0.3:/
[root@f703c011abe3 mariadb-10.3.9]# yum install libaio
[root@f703c011abe3 ~]#tar zxvf mariadb-10.3.9-linux-x86_64.tar.gz
[root@f703c011abe3 /]# useradd mysql
[root@f703c011abe3 /]# chown mysql.mysql /mariadb-10.3.9/ -R
[root@f703c011abe3 /]# mkdir /jian/datadg -p
[root@f703c011abe3 /]# mkdir /jian/datadg/log -p
[root@f703c011abe3 /]# mkdir
/jian/binlog
[root@f703c011abe3 /]# mkdir /jian/tmp
[root@f703c011abe3 /]# chown mysql.mysql /jian -R
[root@f703c011abe3 /]# vi /etc/my.cnf
[root@f703c011abe3 /]# chown mysql.mysql /etc/my.cnf
[mysql@f703c011abe3 ~]$ cd /mariadb-10.3.9/
[mysql@f703c011abe3 mariadb-10.3.9]$ ./scripts/mysql_install_db
3将已安装过mariadb的容器进行打包
1将当前的容器另存为一个新的镜像
[root@jian ~]# docker ps
CONTAINER
ID IMAGE COMMAND CREATED STATUS PORTS NAMES
f703c011abe3 centos "/bin/bash" 31
minutes ago Up 31
minutes angry_hermann
[root@jian ~]# docker commit f703c011abe3 centos-mariadb
2将镜像打包
[root@jian ~]# docker save -o
/centos-mariadb.tar centos-mariadb
3使用自己的镜像
[root@localhost /]# docker load -i centos-mariadb.tar
1d31b5806ba4: Loading layer
[==================================================>] 208.3MB/208.3MB
749314e7fdf1: Loading layer
[==================================================>] 2.592GB/2.592GB
Loaded image: centos-mariadb:latest
[root@localhost /]# docker images;
REPOSITORY TAG IMAGE
ID CREATED SIZE
centos-mariadb latest 26de8ce07e68 21
hours ago 2.78GB
[root@localhost /]# docker run -itd centos-mariadb
7c24bc7101440f6aff9718eef32e9f74305d1965042540245aaf45e1f55aba5e
[root@localhost /]# docker exec -it
7c24bc7101440f6aff9718eef32e9f74305d1965042540245aaf45e1f55aba5e bash
[root@7c24bc710144 /]# su - mysql
Last login: Mon Sep 17 15:46:35 UTC 2018
[mysql@7c24bc710144 ~]$ mysqld_safe &
[1] 44
[mysql@7c24bc710144 ~]$ 180918 14:36:12 mysqld_safe Logging to
'/jian/datadg/log/alert_Jian.log'.
180918 14:36:12 mysqld_safe Starting mysqld daemon with
databases from /jian/datadg/db
[mysql@7c24bc710144 ~]$ mysql -uroot
Welcome to the MariaDB monitor. Commands end with ;
or \g.
Your MariaDB connection id is 6
Server version: 10.3.9-MariaDB-log MariaDB Server
Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and
others.
Type 'help;' or '\h' for help. Type '\c' to clear the current
input statement.
14:36:17 (root@localhost) [(none)]> quit
Bye
如果对以上的任何一步有疑问，大家可以留言