mapping a container port to multiple host ports doesn't work in host mode
Open
Nobody has claimed this yet.
kind/bug
status/0-triage
- Dominant language
- Go
- Stars
- 6.1k
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- 2.2k
- Avg merge
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- Merged PRs (30d)
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Description
Description
It seems it's not possible to map a single container port to multiple host ports when using host mode. It might be similar to this issue: https://github.com/docker/compose-cli/issues/1655
Reproduce
- create a compose file
foo.yml
version: "3.4"
services:
nginx:
image: nginx
ports:
- target: 80
published: 7500
protocol: tcp
mode: host
- target: 80
published: 7501
protocol: tcp
mode: host
- target: 90
published: 7502
protocol: tcp
mode: host
- deploy the services
docker stack deploy -c foo.yml foo
- inspect the service
docker ps | grep foo
example output with the 7500 mapping missing
e52e785d43ab nginx:latest "/docker-entrypoint.…" 3 minutes ago Up 3 minutes 0.0.0.0:7501->80/tcp, :::7501->80/tcp, 0.0.0.0:7502->90/tcp, :::7502->90/tcp foo_nginx.1.ynapf1jho2sg2jib4391j1tej
Expected behavior
Both ports 7500 and 7501 should have been mapped, but only the last one was.
docker version
Client: Docker Engine - Community
Version: 26.0.0
API version: 1.45
Go version: go1.21.8
Git commit: 2ae903e
Built: Wed Mar 20 15:18:12 2024
OS/Arch: linux/amd64
Context: default
Server: Docker Engine - Community
Engine:
Version: 26.0.0
API version: 1.45 (minimum version 1.24)
Go version: go1.21.8
Git commit: 8b79278
Built: Wed Mar 20 15:18:12 2024
OS/Arch: linux/amd64
Experimental: false
containerd:
Version: 1.6.28
GitCommit: ae07eda36dd25f8a1b98dfbf587313b99c0190bb
runc:
Version: 1.1.12
GitCommit: v1.1.12-0-g51d5e94
docker-init:
Version: 0.19.0
GitCommit: de40ad0
docker info
Client: Docker Engine - Community
Version: 26.0.0
Context: default
Debug Mode: false
Plugins:
buildx: Docker Buildx (Docker Inc.)
Version: v0.13.1
Path: /usr/libexec/docker/cli-plugins/docker-buildx
compose: Docker Compose (Docker Inc.)
Version: v2.25.0
Path: /usr/libexec/docker/cli-plugins/docker-compose
scan: Docker Scan (Docker Inc.)
Version: v0.23.0
Path: /usr/libexec/docker/cli-plugins/docker-scan
Server:
Containers: 97
Running: 39
Paused: 0
Stopped: 58
Images: 55
Server Version: 26.0.0
Storage Driver: overlay2
Backing Filesystem: extfs
Supports d_type: true
Using metacopy: false
Native Overlay Diff: true
userxattr: false
Logging Driver: json-file
Cgroup Driver: systemd
Cgroup Version: 2
Plugins:
Volume: local
Network: bridge host ipvlan macvlan null overlay
Log: awslogs fluentd gcplogs gelf journald json-file local splunk syslog
Swarm: active
NodeID: rnkuw1h18qfave5s02qrpil4g
Is Manager: true
ClusterID: ibv4nqt659hdxmqv32gkk7a49
Managers: 1
Nodes: 1
Default Address Pool: 10.0.0.0/8
SubnetSize: 24
Data Path Port: 4789
Orchestration:
Task History Retention Limit: 5
Raft:
Snapshot Interval: 10000
Number of Old Snapshots to Retain: 0
Heartbeat Tick: 1
Election Tick: 10
Dispatcher:
Heartbeat Period: 5 seconds
CA Configuration:
Expiry Duration: 3 months
Force Rotate: 0
Autolock Managers: false
Root Rotation In Progress: false
Node Address: 172.20.3.61
Manager Addresses:
172.20.3.61:2377
Runtimes: runc io.containerd.runc.v2
Default Runtime: runc
Init Binary: docker-init
containerd version: ae07eda36dd25f8a1b98dfbf587313b99c0190bb
runc version: v1.1.12-0-g51d5e94
init version: de40ad0
Security Options:
apparmor
seccomp
Profile: builtin
cgroupns
Kernel Version: 5.10.0-28-amd64
Operating System: Debian GNU/Linux 11 (bullseye)
OSType: linux
Architecture: x86_64
CPUs: 12
Total Memory: 15.53GiB
Name: cldev10
ID: TRKH:KEBO:ESTR:OKOG:NACA:LTD6:RN34:5TFK:TJCM:WE44:LDXK:A6HY
Docker Root Dir: /var/lib/docker
Debug Mode: false
Experimental: false
Insecure Registries:
aadocker01.as-i.com:5000
127.0.0.0/8
Live Restore Enabled: false
Additional Info
No response
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the issue with the provided foo.yml and docker stack deploy command, then inspect the Docker CLI path handling Swarm service port mappings in host mode. Done means both published ports 7500 and 7501 appear in docker ps while the port 7502 mapping remains intact.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- docker, go
- Domain
- cli, devops
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100