Unsupported config option: 'pids_limit'

[gcavalcante8808]

Hello Folks,

I'm trying to use the following docker-compose.yml:

version: '2.1'

volumes:
db-data:
app-tmp:

services:
  db:
    image: postgres:9.6
    restart: unless-stopped
    pids_limit: 150
    volumes:
     - "db-data:/var/lib/postgresql/data"
    env_file:
     - clair.env

When I try to run the containers, the following error is returned:

     Unsupported config option for services.db: 'pids_limit'

I'm using the documenation available at: https://docs.docker.com/compose/compose-file/compose-file-v2/#pidslimit and I have the following docker-compose version:

$ docker-compose --version
docker-compose version 1.12.0, build b31ff33

Can someone point me to the right way or syntax?

Thanks in advance.

[shin-]

What command are you running? I just tested docker-compose up with the config you shared and it works for me without issues...

[gcavalcante8808]

Hello @shin- i'm using the following command:

docker-compose up -d

[shin-]

Yeah, that should work just fine. Maybe try upgrading to the latest version? https://github.com/docker/compose/releases/tag/1.13.0

[salzig]

Same error with docker-compose version 1.13.0, build 1719ceb on Docker 17.05.0-ce and docker-compose file in spec version 3.2.

$ cat docker-compose.yml 
version: "3.2"

services: 
  app:
    image: "ubuntu"
    pids_limit: 2

$ docker-compose up -d
ERROR: The Compose file './docker-compose.yml' is invalid because:
Unsupported config option for services.app: 'pids_limit'

[shin-]

That's different - pids_limit is not valid in format v3. See the reference docs: https://docs.docker.com/compose/compose-file/

[salzig]

couldn't find any deprecation message. Can you hint me something?

[shin-]

Swarm Mode services do not support pids_limit, so the option has only been introduced to the 2.1 (and subsequently 2.2) format. You're right that this is not properly mentioned in the docs. I created docker/docs#3366 to remedy this.

[hazcod]

@shin- any idea why this isn't supported anymore?