Cannot execute ls command in docker-CodePudding

I'm trying to use docker compose to run my services. But for some reason I'm not able to call e.g. this command 'ls -la /home'. It gives me an error:

Cannot start service test: failed to create shim task: OCI runtime create failed: runc >create failed: unable to start container process: exec: "ls /home": stat ls /home: no such >file or directory: unknown

whereas when I use just 'ls' then I see all the directories... what's wrong?

Below is my docker-compose file:

version: "3"
services:
  mqtt_broker:
    build:
      dockerfile: Dockerfile
      context: ./
    network_mode: host
  test:
    depends_on: [ mqtt_broker ]
    image: ubuntu:22.04
    command:
      - ls -la /home
    network_mode: host

CodePudding user response：

Enclose your command with the array notation (just like in Dockerfiles), so that it is properly joined together as one, instead of different parts being interpreted separately.

command: [ "ls", "-la", "/home" ]

CodePudding user response：

There is no command "ls -la /home". There is command ls that takes -la argument and /home argument.

command:
  - ls
  - "-la"
  - /home

Or alternatively, docker-compose will do the splitting if you pass a string instead of an array (consult YAML specification):

command: "ls -la /home"

Or just:

command: ls -la /home

CodePudding user response：

It might be a missing $PATH problem -- does the following work?

command:
  - /bin/ls -la /home