如何在 .env 中为 docker-compose 生成随机 PostgreSQL 密码

使用以下命令生成密码：

generate_pg_password.sh

echo "POSTGRES_PASSWORD=$(pwgen 30)" >> .env

echo "POSTGRES_PASSWORD=$(pwgen 30)" >> .env

然后在 docker-compose.yml 中，你可以这样使用环境变量：

docker-compose.yml

services:
  postgres:
    image: postgres:latest
    environment:
      - POSTGRES_PASSWORD=${POSTGRES_PASSWORD}
    volumes:
      - ./postgres_data:/var/lib/postgresql/data
    restart: unless-stopped
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U postgres"]
      interval: 1s
      start_period: 3s
      timeout: 5s
      retries: 30

services:
  postgres:
    image: postgres:latest
    environment:
      - POSTGRES_PASSWORD=${POSTGRES_PASSWORD}
    volumes:
      - ./postgres_data:/var/lib/postgresql/data
    restart: unless-stopped
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U postgres"]
      interval: 1s
      start_period: 3s
      timeout: 5s
      retries: 30

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