docker-compose down 不删除匿名卷

Question

I have my docker-compose as below:

version: '3.8'
services:
  mongodb:
    image: 'mongo'
    restart: 'always'
    volumes:
      - data:/data/db
  
  backend:
    build: ./api
    ports:
      - '5000:5000'
    volumes:
      - upload:/app/upload
    depends_on: 
      - mongodb

  frontend:
    build: ./client
    ports:
      - '3000:3000'
    volumes:
      - ./client:/app
      - /app/node_modules
    stdin_open: true
    tty: true
    depends_on:
      - backend

volumes:
  data:
  upload:

After running docker-compose up -d it creates 4 volumes:

DRIVER    VOLUME NAME
local     86ade5422b5ec2ab35fc3b2ea76099596d8b4a36f96c4428fbab4559ae5cff74
local     de8c5f9680c5c4f73b6a3d4a1b3d4d2f962cc498d34a49dbfbbbda4cc7652288
local     easyhome_data
local     easyhome_upload

The 2 anonymous volumes seem to target to the /data/configdb and /app/node_modules

If I shut it down then run it again docker-compose down && docker-compose up -d it will create 2 more anonymous volumes identical to the previous two

DRIVER    VOLUME NAME
local     5a1ead27ac78cee770aad636c156818c246377132b50a8b773b35be46146195f
local     86ade5422b5ec2ab35fc3b2ea76099596d8b4a36f96c4428fbab4559ae5cff74
local     bc3063ff80f63f9e7ed5c1e319ee43a6d92ccdb2bfa9aec7e6be35378a566638
local     de8c5f9680c5c4f73b6a3d4a1b3d4d2f962cc498d34a49dbfbbbda4cc7652288
local     easyhome_data
local     easyhome_upload

I dont want to run docker-compose down -v because it will remove my 2 named volumes as well. Please provide guidance!

Answer 1

You need to explicitly ask docker-compose to remove volumes:

docker-compose down -v

Reason is: volumes are meant to persist data useful to the user.

Read more about available options:

docker-compose down --help

Output:

Usage:  docker compose down

Stop and remove containers, networks

Options:
      --remove-orphans    Remove containers for services not defined in the Compose file.
      --rmi string        Remove images used by services. "local" remove only images that don't have a custom tag ("local"|"all")
  -t, --timeout int       Specify a shutdown timeout in seconds (default 10)
  -v, --volumes volumes    Remove named volumes declared in the volumes section of the Compose file and anonymous volumes
                          attached to containers.