Docker中处理持久化存储(如数据库)的方法详解

docker volume create --name hello

docker run -d -v hello:/container/path/for/volume container_image my_command

docker run -v /data --name DATA busybox true

docker run --volumes-from DATA some-other-container command-to-execute

sudo docker run --rm --volumes-from DATA -v $(pwd):/backup busybox tar cvf /backup/backup.tar /data

- **恢复**：

# 创建新的数据容器
sudo docker run -v /data --name DATA2 busybox true
# 将备份文件解压到新容器的数据卷中
sudo docker run --rm --volumes-from DATA2 -v $(pwd):/backup busybox tar xvf /backup/backup.tar

version: "2"

services:
  db:
    restart: on-failure:10
    image: postgres:9.4
    volumes:
      - "db-data:/var/lib/postgresql/data"
  web:
    restart: on-failure:10
    build: .
    command: gunicorn mypythonapp.wsgi:application -b :8000 --reload
    volumes:
      - .:/code
    ports:
      - "8000:8000"
    links:
      - db

volumes:
  db-data:

docker-compose up -d

# 创建数据卷
docker volume create --name myvolume
# 运行容器并挂载数据卷
docker run -d -v myvolume:/app/data nginx

version: '3'
services:
  mysql:
    image: mysql:5.7
    volumes:
      - mysql-data:/var/lib/mysql
    environment:
      MYSQL_ROOT_PASSWORD: example
volumes:
  mysql-data: