通过Docker Compose、Nginx和MariaDB实现PHP应用程序的数据备份与还原

.
├── docker-compose.yml
├── nginx
│   └── default.conf
├── mariadb
│   ├── Dockerfile
│   └── init.sql
└── php
    ├── Dockerfile
    └── index.php

version: '3'
services:
  nginx:
    image: nginx:latest
    ports:
      - 80:80
    volumes:
      - ./nginx:/etc/nginx/conf.d
      - ./php:/var/www/html
    depends_on:
      - php
  mariadb:
    build:
      context: ./mariadb
    environment:
      - Mysql_ROOT_PASSWord=123456
      - mysql_DATABASE=mydb
    volumes:
      - ./mariadb/data:/var/lib/mysql
    ports:
      - 3306:3306
  php:
    build:
      context: ./php
    volumes:
      - ./php:/var/www/html

server {
    listen 80;
    server_name localhost;
    root /var/www/html;
    
    location / {
        try_files $uri $uri/ /index.php?$query_string;
    }
    
    location ~ .php$ {
        try_files $uri =404;
        fastcgi_pass php:9000;
        fastcgi_index index.php;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        include fastcgi_params;
    }
}

FROM mariadb:latest

COPY init.sql /docker-entrypoint-initdb.d

CREATE DATABASE IF NOT EXISTS mydb;
USE mydb;

CREATE TABLE IF NOT EXISTS users (
    id INT PRIMARY KEY AUTO_INCREMENT,
    name VARCHAR(100) NOT NULL,
    email VARCHAR(100) NOT NULL
);

FROM php:7.4-fpm

RUN apt-get update && 
    apt-get install -y 
    zlib1g-dev 
    libzip-dev

RUN docker-php-ext-install zip pdo_mysql

COPY index.php /var/www/html

<?php

$dbHost = 'mariadb';
$dbUser = 'root';
$dbPass = '123456';
$dbName = 'mydb';

try {
    $pdo = new PDO("mysql:host=$dbHost;dbname=$dbName", $dbUser, $dbPass, [
        PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
        PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC
    ]);

    // 插入数据
    $pdo->exec("INSERT INTO users (name, email) VALUES ('John Doe', 'john@example.com')");

    // 查询数据
    $stmt = $pdo->query("SELECT * FROM users");
    $users = $stmt->fetchAll();

    // 打印数据
    foreach ($users as $user) {
        echo $user['name'] . ' (' . $user['email'] . ')' . PHP_EOL;
    }

} catch (PDOException $e) {
    echo "Error: " . $e->getMessage();
}

#!/bin/bash

BACKUP_DIR="/path/to/backup"
DATE=$(date +%Y%m%d%H%M%S)
BACKUP_FILE="$BACKUP_DIR/mydb_$DATE.sql"

docker exec -i CONTAINER_NAME mysqldump -uroot -p123456 mydb > $BACKUP_FILE

if [ $? -eq 0 ]; then
    echo "Backup completed: $BACKUP_FILE"
else
    echo "Backup failed"
fi

#!/bin/bash

BACKUP_FILE="/path/to/backup/mydb_20210101120000.sql"

docker exec -i CONTAINER_NAME mysql -uroot -p123456 mydb < $BACKUP_FILE

if [ $? -eq 0 ]; then
    echo "Restore completed"
else
    echo "Restore failed"
fi