docker创建Redis、MySQL和Nginx

CoderJia 29 2023-06-17

docker安装nginx

pull拉去Nginx镜像下来，并且启动

docker run -d -p 80:80 --restart=always nginx:latest
    # -d 后台启动 -p 宿主机的80端口映射容器的80端口
    # --restart=always 伴随docker重启自动重启该容器

进入容器

docker ps # 获取运行容器信息
docker exec -it 容器名|id  /bin/bash

文件拷贝 首先我们需要拿到容器id的全称：

root@gj-master:/etc/docker# docker ps
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                    NAMES
6e531c6f483b        redis:4.0           "docker-entrypoint.s…"   23 hours ago        Up 10 minutes       0.0.0.0:6379->6379/tcp   myredis
cc9666a8d587        nginx               "nginx -g 'daemon of…"   3 weeks ago         Up 10 minutes       0.0.0.0:8000->80/tcp     mynginx
root@gj-master:/etc/docker# docker inspect -f '{{.Id}}' cc9666a8d587 
cc9666a8d587e0036bccb3c8451f06af30ed955207f939b56cd2f44a2bf542d1
root@gj-master:/etc/docker#

将文件拷贝到docker容器中：

docker cp /opt/html/user_login.html cc9666a8d587e0036bccb3c8451f06af30ed955207f939b56cd2f44a2bf542d1:/root/user_login.html

进入容器查看

root@gj-master:/etc/docker# docker exec -it mynginx /bin/bash
root@cc9666a8d587:/# ls
bin  boot  dev	etc  home  lib	lib64  media  mnt  opt	proc  root  run  sbin  srv  sys  tmp  usr  var
root@cc9666a8d587:/# cd /root/
root@cc9666a8d587:~# ls
user_login.html
root@cc9666a8d587:~#

docker里面安装redis

pulll拉取镜像

docker pull redis:4.0

启动redis镜像

root@gj-master:/etc/docker# docker run -p 6379:6379 \
 -v $PWD/data:/data  \
 -v $PWD/redis.conf:/etc/redis/redis.conf  \
 --privileged=true \
 --name myredis \
 -d redis:4.0 redis-server /etc/redis/redis.conf \
 --appendonly yes
 
 
 
  # -p 6379:6379: 将容器的6379端口映射到主机的6379端口
  # -v $PWD/data:/data : 将主机中当前目录下的data挂载到容器的/data
  # redis-server —appendonly yes : 在容器执行redis-server启动命令，并打开redis持久化配置

备注，“redis-server /etc/redis/redis.conf”可能不成功，因为配置文件中指定了各种文件路径，而容器中可能不存在路径，可以先启动容器，再进入容器中重启Redis：

# 配置文件/etc/redis/redis.conf设置密码
# use a very strong password otherwise it will be very easy to break.
requirepass 123456

重启Redis

root@6e531c6f483b:/#docker exec -it redis /bin/bash
root@6e531c6f483b:/#  redis-server /etc/redis/redis.conf

root@VM-0-4-ubuntu:/etc/docker/redis# ifconfig
docker0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        inet 172.17.0.1  netmask 255.255.0.0  broadcast 172.17.255.255
        inet6 fe80::42:d4ff:fed5:1017  prefixlen 64  scopeid 0x20<link>
        ether 02:42:d4:d5:10:17  txqueuelen 0  (Ethernet)
        RX packets 223035  bytes 14681300 (14.6 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 240303  bytes 123073991 (123.0 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 172.21.0.4  netmask 255.255.240.0  broadcast 172.21.15.255
        inet6 fe80::5054:ff:fe28:ee1f  prefixlen 64  scopeid 0x20<link>
        ether 52:54:00:28:ee:1f  txqueuelen 1000  (Ethernet)
        RX packets 79189019  bytes 8710277698 (8.7 GB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 80967042  bytes 12372145190 (12.3 GB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 7623492  bytes 880953027 (880.9 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 7623492  bytes 880953027 (880.9 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

docker安装MySQL

拉取镜像

docker pull mysql:latest

运行容器

# MYSQL_ROOT_PASSWORD=123456 mysql数据库开启安全认证，密码123456，用户名root
$ docker run -itd --name mysql-test -p 3306:3306 -e MYSQL_ROOT_PASSWORD=123456 mysql

参数说明:

  • -p 3306:3306 ：映射容器服务的 3306 端口到宿主机的 3306 端口，外部主机可以直接通过宿主机ip:3306访问到MySQL的服务。
  • MYSQL_ROOT_PASSWORD=123456：设置MySQL服务root用户的密码。

更多配置

# 把主机的/conf/mysql文件夹挂载到 mysqldocker容器的/etc/mysql/文件夹里面
# 改mysql的配置文件就只需要把mysql配置文件放在自定义的文件夹下（/etc/mysql/）
docker run --name mysql-test -v /etc/mysql:/etc/mysql -e MYSQL_ROOT_PASSWORD=123456 -d mysql

# 指定mysql的一些配置参数
docker run --name mysql-test -e MYSQL_ROOT_PASSWORD=123456 -d mysql \
    --character-set-server=utf8mb4 \
    --collation-server=utf8mb4_unicode_ci

# 设置mysql server的编码
docker run -p 3307:3306 --name mysq-test \
    -e MYSQL_ROOT_PASSWORD=123456 \
    -d mysql \
    --character-set-server=utf8mb4 \
    --collation-server=utf8mb4_unicode_ci

登录mysql服务器

root@gj-master:/etc/mysql/mysql.conf.d# mysql -uroot -h0.0.0.0 -P3307 -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 3
Server version: 5.7.28 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> 

# 一定带上ip和port
Docker