moby / moby/libnetwork

"Address already in use" even if no containers connected

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#2,425 2 comments 0 reactions 0 assignees View on GitHub

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Dominant language
Go
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Forks
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Description

I regularly get the "Address already in use" error when recreating an existing container (by docker-compose), even if the container being recreated is the only member of this macVLAN network (as pointed out by docker network inspect).

Although the network shouldn't have any member left at the moment (as the container is deleted / recreated) and docker network inspect confirms this status, the underlaying IPAM database seems to have a state not matching to this output. However, I can't find a way to tell it to prune all records of addresses in use.

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Research direction

Start by reproducing container recreation with docker-compose on a macVLAN network, then compare docker network inspect with the underlying IPAM database state. The issue is complete when the stale address record no longer causes an "Address already in use" error after the container is recreated.

Written by the indexing model from the issue text.

Assessment

Tech stack
docker, docker-compose, go
Domain
networking
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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