Shell hangs from CLI, works from Visual Studio (OS X)

[justinlittman]

OS X version: Darwin 22.5.0 (Ventura)
Docker version: Docker version 24.0.2, build cb74dfc
Docker compose version: Docker Compose version v2.18.1
VS Code version: 1.79.2 (Universal)
Devcontainer version: 0.42.0

devcontainer.json:

{
	"dockerComposeFile": "docker-compose.yml",
	"service": "devcontainer",
}

docker-compose.yml:

version: '3.6'

services:
  devcontainer:
    image: mcr.microsoft.com/devcontainers/ruby:3.1
    volumes:
      - ../..:/workspaces
    command: sleep infinity
  db:
    image: postgres:12
    environment:
      POSTGRES_DB: rv-metasearch
      POSTGRES_PASSWORD: postgres
    ports:
      - 5432:5432
    volumes:
      - postgres-data:/var/lib/postgresql/data
  redis:
    image: redis
    ports:
      - 6379:6379
    volumes:
      - redis-data:/data
volumes:
  postgres-data:
  redis-data:

Steps to reproduce (terminal):

1. devcontainer up
2. devcontainer exec bash (or any other shell).
3. ls
   The terminal then hangs.

Steps to reproduce (VS Code):

1. devcontainer up
2. Devcontainers: Attach to a running container ...
3. Select the devcontainer container.
4. View > Terminal
5. ls
   The command executes as expected.

My apologies in advance if I am misunderstanding something about how the CLI is intended to work.

[bamurtaugh]

Hi @justinlittman, thanks for opening!

I was able to use the following in the command line, working on a GitHub\helloexpress project

• cd GitHub
• devcontainer up --workspace-folder helloexpress
  • The output of this command prints a container id, which I used in the next command
• devcontainer exec --container-id <container_id_from_above> ls

Please let me know if this makes sense and works any better for you.

[justinlittman]

devcontainer exec ls works as expected. However, I'm trying to get an interactive shell running in the container (bash or any other shell).

[bamurtaugh]

Ah thanks for clarifying!

That was implemented through #59. Does devcontainer exec bash work well for you? That appears to work for me.

[justinlittman]

devcontainer exec bash hangs for me. Are you on OS X @bamurtaugh?

[bamurtaugh]

Ah got it, @chrmarti @alexander-smolyakov could you try to repro?

[chrmarti]

Works for me on Mac:

❯ devcontainer exec --workspace-folder . bash
vscode ➜ / $ ls
bin  boot  dev  etc  home  lib  media  mnt  opt  proc  root  run  sbin  srv  sys  tmp  usr  var  workspaces
vscode ➜ / $ 

Could you post the output you get for comparison?

[justinlittman]

devcontainer exec --workspace-folder . bash
vscode ➜ / $ ls

and then it hangs.

[chrmarti]

Does devcontainer exec --workspace-folder . bash -lic ls work?

[justinlittman]

Works:

devcontainer exec --workspace-folder . bash -lic ls
bin  boot  dev  etc  home  lib  lib32  lib64  libx32  media  mnt  opt  proc  root  run  sbin  srv  sys  tmp  usr  var  workspaces

Hangs:

devcontainer exec --workspace-folder . bash -li
vscode ➜ / $ ls

[magnomp]

Same here, but its not that it hangs. It actually let you type indefinitely but doesnt respond do anything:

magno@magno-note:~/Documentos/devcontainer-test$ devcontainer exec --workspace-folder . bash
node ➜ /workspaces/devcontainer-test (master) $ ls
ls
sdfsdf
sdfsfdf

Doing some tests, it seems to be the same as invoking docker exec without the -i argument:

magno@magno-note:~/Documentos/devcontainer-test$ docker exec -it 8e3 bash
root ➜ / $ ls
bin  boot  dev	etc  home  lib	lib64  media  mnt  opt	proc  root  run  sbin  srv  sys  tmp  usr  var	vscode	workspaces
root ➜ / $

(works)

magno@magno-note:~/Documentos/devcontainer-test$ docker exec -t 8e3 bash
root ➜ / $ ls
ls
sdfsdf

(hangs)

[LangdalP]

Can confirm that I am experiencing the same on MacOS.

[dbader]

Same issue for me on macOS, devcontainer exec bash hangs

$ devcontainer --version
0.46.0

[jetaggart]

I'm experiencing this as well. It seems like any interactive command hangs, I can't even get a prompt and have to kill my whole shell to stop the process (won't even respond to ctrl-c).

devcontainer exec --workspace-folder . sh -> hangs terminal
devcontainer exec --workspace-folder . bash -li -> hangs terminal
devcontainer exec --workspace-folder . bash -lic ls -> works as expected

$ devcontainer --version
0.50.0

macOS 13.14.1, zsh on host, bash on container

[Drowze]

Using MacOS 13.2.1, running docker cli with colima. Also going through same behaviour as @jetaggart (note: killing the container with docker kill <sha> also cancel the process and get shell responsive again)

OS: MacOS 13.2.1
Docker version: 24.0.4, build 3713ee1eea
Docker Compose version: Docker Compose version 2.20.0
Colima version: colima version 0.5.5

(also not sure if relevant: but I'm running fish on the host machine and bash on the container, with Alacritty terminal emulator)