docker搭建LNMP

docker安装

略

下载镜像

• nginx:最新版
• php-fpm:根据自己需求而定
• mysql:根据自己需求定

以下是我搭建LNMP使用的镜像版本

root@VM-12-16-ubuntu:/docker/lnmp/php/etc# docker images
REPOSITORY        TAG       IMAGE ID       CREATED        SIZE
mysql             8.0.34    5761fe35fa53   37 hours ago   577MB
bitnami/php-fpm   8.1.22    33c8b3ab8748   2 days ago     281MB
nginx             latest    89da1fb6dcb9   2 weeks ago    187MB

创建路径

# 创建相关目录
mkdir -p /docker/lnmp/php
mkdir -p /docker/lnmp/nginx/conf.d
mkdir -p /docker/lnmp/mysql

compase文件

version: '3'
services:
  php:
    image: bitnami/php-fpm:8.1.22
    volumes:
      - /var/www/html:/usr/share/nginx/html
      #- /docker/lnmp/php/etc:/opt/bitnami/php/etc
    restart: always
  nginx:
    image: nginx:latest
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - /docker/lnmp/nginx/conf.d:/etc/nginx/conf.d
      - /var/www/html:/usr/share/nginx/html
      - /var/log/nginx:/var/log/nginx
    depends_on:
      - php
    restart: always
  mysql:
    image: mysql:8.0.34 
    volumes:
      - /docker/lnmp/mysql/data:/var/lib/mysql
      - /docker/lnmp/mysql/conf.d:/etc/mysql/conf.d
    environment:
      - MYSQL_ROOT_PASSWORD=mysql123 #改成你自己的mysql密码
    ports:
      - "3306:3306"
    restart: always

nginx 配置文件

touch /docker/lnmp/mysql/conf.d/project_a.conf

cat > /docker/lnmp/mysql/conf.d/project_a.conf << EOF
server {
    listen 80;
    server_name php.test;
    root /usr/share/nginx/html;

    index index.html index.htm index.php;
    location / {
        try_files $uri $uri/ /index.php$is_args$args;
    }
    
    location ~ \.php$ {
        try_files $uri /index.php =404;
        fastcgi_pass php:9000;   #这里是因为我compose.yml文件中php-fpm服务名称是“php”，你也可以改成你服务的私有地址
        fastcgi_index index.php;
        fastcgi_buffers 16 16k;
        fastcgi_buffer_size 32k;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        #fixes timeouts
        fastcgi_read_timeout 600;
        include fastcgi_params;
    }
    
    location ~ /\.ht {
        deny all;
    }
    location /.well-known/acme-challenge/ {
        root /var/www/letsencrypt/;
        log_not_found off;
    }
    error_log /var/log/nginx/php_error.log;
    access_log /var/log/nginx/php_access.log;
    
}
EOF

安装mycli

因为docker安装mysql，服务上没有安装mysql客户端，查询不方便，推荐使用mycli，还带命令提示，还可以

apt install mycli -y
#或
yum install mycli -y

特殊要求

• 如果需要自己修改php.ini,请先运行php-fpm镜像，将配置文件拷贝到服务器上，修改后将文件挂到容器

# 临时启动一个php-fpm
docker run --name myphp -d bitnami/php-fpm:8.1.22
# 将配置文件拷贝到自己服务器上
docker cp myphp:/opt/bitnami/php/etc/ /docker/lnmp/php/etc/
# 删除临时php-fpm容器
docker rm -f myphp

测试

测试nginx是否正常

在根目录下创建index.html

<h1>hello,docker!</>

测试nginx是否能正确解析php文件

在根目录下创建index.php

phpinfo();

测试mysql

注意：如果你用的云服务器，$servername不要设置成公网地址，否则测试连接不成功，最好设置成你的服务器的私有地址

//$servername = "mysql" 因为我的compose.yml中mysql服务的名字是“mysql”,如果你也和我一样，可以这样写,不是的话，保持和compose.yml文件中mysql服务名一致
$servername = "mysql";
$username = "root";
$password = "mysql123";
$db_name = 'mysql';
$conn = new mysqli($servername, $username, $password, $db_name);
// 检测连接
if ($conn->connect_error) {
    die("连接失败: " . $conn->connect_error);
}
echo "连接成功";

php连接mysql8报错处理

# 创建mysql.cnf
touch /docker/lnmp/mysql/conf.d/mysql.cnf
# 修改密码验证插件
cat > /docker/lnmp/mysql/conf.d/mysql.cnf <<EOF
[mysqld]
default-authentication-plugin=mysql_native_password
EOF
# 重启mysql镜像
docker-compose -f /docker/lnmp/compose.yml restart mysql
# 登录用root登录mysql
mycli -uroot
# 没有库的可以创建一个，有库跳过这一步
create database blog;
#没有用户的的创建用户，有则跳过
CREATE USER ‘blog‘@‘%‘ IDENTIFIED WITH mysql_native_password BY 'Mysql@2023_!';
#用户授权，有用户的跳过
grant all privileges on blog.* to 'blog'@'%';
#修改密码
ALTER USER ‘native‘@‘localhost‘ IDENTIFIED WITH mysql_native_password BY ‘new_password‘;
# 刷新
flush privileges;