Docker
0 概述
1：安装Docker？
版本1
版本2
Step1:安装 Docker
sudo apt-get install -y docker.io
Step2:启动 Docker
systemctl start docker
Step3:运行系统引导时启用 docker
systemctl enable docker
Step4:核对一下 docker 版本：
docker version
2：Docker常用命令？有时需要加sudo
1.查看所有已下载的images
-p 标识通知 docker 将容器内部使用的网络端口映射到我们使用的主机上。
--name 定义一个容器的名字，如果在执行docker run时没有指定Name，那么docker会自动生成一个随机数字符串当做UUID。
docker run --name mysql -p 3306:3306 -e MYSQL_ROOT_PASSWORD=password -dmysql/mysql-server:latest
含义：容器的名字为mysql，将容器的3306端口映射到本机的3306端口，mysql数据库的密码为password ，运行的镜像为mysql/mysql-server:latest
docker start con_name //启动容器名为con_name的容器。
docker stop con_name //停止容器名为con_name的容器
docker rm con_name //删除容器名为con_name的容器
docker rmi img_name //删除镜像名为img_name的镜像
docker rename old_name new_name //重命名一个容器
3：Docker下安装mysql？
//Step1:拉取所需版本的mysql
sudo docker pull mysql:5.7.12 //5.7.12是版本号
//Step2:运行mysql(没有映射配置文件和数据文件，如需要，则此时停下来看下面如何修改mysql默认配置)
sudo docker run --name lab-mysql -p 3306:3306 -e MYSQL_ROOT_PASSWORD=123456 -d mysql:5.7.12
4：如何修改mysql的默认配置？
>mkdir mysql >cd mysql && mkdir config >rz my.cnf
sudo docker stop 容器id sudo docker rm 容器id
//Step2：将本地配置文件和mysql Docker容器内部的配置文件的数据文件夹映射(这么做的好处是可以在外部文件修改配置文件)
sudo docker run -d -p 3306:3306 -v ~/mysql/config/my.cnf:/etc/mysql/my.cnf -v ~/mysql/data:/var/lib/mysql -e MYSQL_ROOT_PASSWORD=123456 --name lab-mysql mysql:5.7.12
3306:3306 本机的3306端口映射到容器的3306端口
~/mysql/config/my.cnf:/etc/mysql/my.cnf:本地配置文件和容器配置文件的映射
/mysql/data:/var/lib/mysql 本地数据文件和容器数据文件的映射
MYSQL_ROOT_PASSWORD=123456:数据库的密码是123456
--name lab-mysql:给该容器取名为lab-mysql
5：如何在容器运行mysql命令行？
>sudo docker ps -a //查看当前运行的容器有哪些？
>sudo docker exec -it 2549 /bin/bash //2549是容器id，之后会进入到容器内部
>mysql -u root -p //输入密码进入root用户
>show variables like '%sql_mode' //查看当前的模式
6 mysql linux下表名区分大小写的问题？
配置文件中加入如下（如何修改配置文件见上）
7 Docker配置redis运行
docker run -d --privileged=true -p 6379:6379 -v
~/redis/config/redis.conf:/etc/redis/redis.conf -v ~/redis/data:/data --name webapp-redis redis:latest redis-server /etc/redis/redis.conf --appendonly yes
8 Docker镜像备份？
//Step1 查看需要备份的容器
sudo docker save -o ./mysql-backup.tar mysql-backup
sudo docker load -i ./mysql-backup.tar
//Step5 运行容器 mysql-backup就是之前备份镜像的名称
sudo docker run -d -p 3306:3306 -v ~/mysql/config/my.cnf:/etc/mysql/my.cnf -v ~/mysql/data:/var/lib/mysql -e MYSQL_ROOT_PASSWORD=123456 --name lab-mysql mysql-backup
附录一：
//# Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#
# The MySQL Community Server configuration file.
#
# For explanations see
# http://dev.mysql.com/doc/mysql/en/server-system-variables.html
[client]
port = 3306
socket = /var/run/mysqld/mysqld.sock
[mysqld_safe]
pid-file = /var/run/mysqld/mysqld.pid
socket = /var/run/mysqld/mysqld.sock
nice = 0
[mysqld]
skip-host-cache
skip-name-resolve
user = mysql
pid-file = /var/run/mysqld/mysqld.pid
socket = /var/run/mysqld/mysqld.sock
port = 3306
basedir = /usr
datadir = /var/lib/mysql
tmpdir = /tmp
lc-messages-dir = /usr/share/mysql
explicit_defaults_for_timestamp
lower_case_table_names=1
sql_mode = NO_AUTO_CREATE_USER,NO_ENGIN_SUBSTITUTION
# Instead of skip-networking the default is now to listen only on
# localhost which is more compatible and is not less secure.
#bind-address = 127.0.0.1
#log-error = /var/log/mysql/error.log
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
# * IMPORTANT: Additional settings that can override those from this file!
# The files must end with '.cnf', otherwise they'll be ignored.
#
!includedir /etc/mysql/conf.d/
docker run -d -p 9000:80 -p 3306:3306 \
-e USER="root" -e PASSWD="752799184" \
-e BIND_ADDRESS="false" \
-e SMTP_HOST="163.177.90.125 smtp.exmail.qq.com" \
-v ~/zentao/:/opt/zbox/ \
--name zentao-server \
idoop/zentao:latest
9：解决Docker每次都要使用sudo的问题？
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