【Docker进阶篇】3.容器编排技术-DockerComponse

Docker Componse 是容器编排技术

Docker Componse 安装

命令行下载

curl -L https://github.com/docker/compose/releases/download/v2.5.0/docker-compose-`uname -s |tr A-Z a-z`-`uname -m` > /usr/local/bin/docker-compose

加速:

curl -L https://get.daocloud.io/docker/compose/releases/download/v2.5.0/docker-compose-`uname -s |tr A-Z a-z`-`uname -m` > /usr/local/bin/docker-compose

命令解释

自动获取系统名和版本:uname -s |tr A-Z a-z (大写转小写),uname -m

手动下载

如果github太慢,也可以手动去下载对应的包,然后拖到服务器上:

https://github.com/docker/compose/releases

找到对应版本:

本文下载的是:docker-compose-linux-x86_64

上传至服务器,将其移动到/usr/local/bin,并更名docker-compose,命令如下:

mv docker-compose-linux-x86_64 /usr/local/bin/docker-compose

添加可执行权限

chmod +x /usr/local/bin/docker-compose

验证docker-compose

docker-compose -v

打印如下:

Docker Compose version v2.5.0

Docker Componse 安装MySQL 并挂载配置文件

创建挂载文件

mkdir /mnt/dockerdata

创建mysql挂载文件

mkdir -p /mnt/dockerdata/mysql/{conf,data}

最终目录结构如下

├── docker-compose.yml
└── mysql
    ├── conf
    │   └── my.cnf
    ├── config
    └── data

创建my.cnf并编辑

vim /mnt/dockerdata/mysql/conf/my.cnf

内容如下:

[mysqld]
character-set-server=utf8mb4
default-time-zone='+8:00'
innodb_rollback_on_timeout='ON'
max_connections=500
innodb_lock_wait_timeout=500

创建docker-compose.yml并编辑

vim /mnt/dockerdata/docker-compose.yml

内容如下:

version: '3'

services:

  mysql-db:
    container_name: mysql01
    # 指定镜像和版本
    image: mysql:5.7                   
    ports:
      - "3306:3306"
    environment:
      MYSQL_ROOT_PASSWORD: 123456
    volumes:
      # 挂载数据目录
      - "/mnt/dockerdata/mysql/data:/var/lib/mysql"
      # 挂载配置文件目录
      - "/mnt/dockerdata/mysql/config:/etc/mysql/conf.d"

启动容器

docker-compose up

安装报错

mysqld: Can’t read dir of ‘/etc/mysql/conf.d/’ (Errcode: 13 - Permission denied)

关闭selinux

临时关闭

setenforce 0

永久关闭

vim /etc/selinux/config

SELINUX=disabled

改完之后重启docker

常用命令

后台启动:

docker-compose up -d

启动指定容器:

docker-compose up -d 容器名

停止所有:

docker-compose stop

停止指定容器:

docker-compose stop 容器名

Docker Componse 安装Nginx 并挂载配置文件

创建nginx挂载文件

mkdir -p /mnt/dockerdata/nginx/{conf,html,logs}

创建nginx配置文件如下:

vim /mnt/dockerdata/nginx/conf/nginx.conf

nginx 默认配置如下:

user  nginx;
worker_processes  auto;

error_log  /var/log/nginx/error.log notice;
pid        /var/run/nginx.pid;


events {
    worker_connections  1024;
}


http {
    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;

    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    access_log  /var/log/nginx/access.log  main;

    sendfile        on;
    #tcp_nopush     on;

    keepalive_timeout  65;

    #gzip  on;

    include /etc/nginx/conf.d/*.conf;
}

创建docker-compose.yml并编辑

vim /mnt/dockerdata/docker-compose.yml

内容如下:

version: '3'

services:
  nginx:
    container_name: nginx01
    image: nginx
    ports:
      - 80:80
    volumes:
      # nginx 配置文件映射
      - /mnt/dockerdata/nginx/conf/nginx.conf:/etc/nginx/nginx.conf
      # nginx log文件映射
      - /mnt/dockerdata/nginx/log:/var/log/nginx
      # nginx 静态文件映射
      - /mnt/dockerdata/nginx/html:/etc/nginx/html
    # 重启docker自动重启
    restart: always

你可能感兴趣的:(docker,docker,容器,mysql)