Compose v2 does not respect the group_add field #8810
Description
Description
The group_add field is not respected by docker compose v2, whereas it works fine in 1.29
Steps to reproduce the issue:
- Create a
docker-compose.ymllike so:
test:
image: alpine
user: "1000:1000"
group_add:
- 20
- Run it with
sudo docker compose run test id
Describe the results you received:
With compose v2:
uid=1000 gid=1000
With compose v1:
uid=1000 gid=1000 groups=20(dialout)
Describe the results you expected:
Both should function the same.
Additional information you deem important (e.g. issue happens only occasionally):
The user field is used here purely to simplify the output, the problem occurs with and without it.
Output of docker compose version:
Docker Compose version v2.0.1
Output of docker-compose --version:
docker-compose version 1.29.2, build unknown
NOTE that while this may imply that I have both v1 and v2 installed at the same time, the issue occurs even if this is not the case.
The v1 build is installed via pip, as there is no release provided for arm64.
Output of docker info:
Client:
Context: default
Debug Mode: false
Plugins:
app: Docker App (Docker Inc., v0.9.1-beta3)
buildx: Build with BuildKit (Docker Inc., v0.6.3-docker)
compose: Docker Compose (Docker Inc., v2.0.1)
Server:
Containers: 24
Running: 1
Paused: 0
Stopped: 23
Images: 22
Server Version: 20.10.9
Storage Driver: overlay2
Backing Filesystem: extfs
Supports d_type: true
Native Overlay Diff: true
userxattr: false
Logging Driver: json-file
Cgroup Driver: cgroupfs
Cgroup Version: 1
Plugins:
Volume: local
Network: bridge host ipvlan macvlan null overlay
Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
Swarm: inactive
Runtimes: io.containerd.runc.v2 io.containerd.runtime.v1.linux runc
Default Runtime: runc
Init Binary: docker-init
containerd version: 5b46e404f6b9f661a205e28d59c982d3634148f8
runc version: v1.0.2-0-g52b36a2
init version: de40ad0
Security Options:
apparmor
seccomp
Profile: default
Kernel Version: 5.4.0-1044-raspi
Operating System: Ubuntu 20.04.3 LTS
OSType: linux
Architecture: aarch64
CPUs: 4
Total Memory: 3.704GiB
Name: ha
ID: KJZN:THA2:KZL3:ATRN:QMDS:RHEI:NH36:7D4M:TV3M:5HP2:52KT:XS36
Docker Root Dir: /var/lib/docker
Debug Mode: false
Registry: https://index.docker.io/v1/
Labels:
Experimental: false
Insecure Registries:
127.0.0.0/8
Live Restore Enabled: false
WARNING: No memory limit support
WARNING: No swap limit support
WARNING: No kernel memory TCP limit support
WARNING: No oom kill disable support
Additional environment details:
As you can see I happen to be running under arm64 on a raspberry pi 4; I do not believe that this is relevant, although it of course may be.
Additionally I note that the group_add option is not documented in the official composefile reference docs, but it is defined in the composefile spec repo on github