moby / moby/swarmkit

the container create from replicas mode service can not resolve domain

Open
#1,414 3 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Dominant language
Go
Stars
3.7k
Forks
676
Avg merge
4d 9h
Merged PRs (30d)
6

Description

If I create replicas mode service, the container created by the tasks can not resolve external domain . And can do in host.

core@worker-10-xx-x-34 ~ $ docker exec -it 0c0d7b939d11 sh
/ # ping mysql-gp-discuz-1-master
ping: bad address 'mysql-gp-discuz-1-master'
/ # exit
core@worker-10-xx-x-34 ~ $ docker version
Client:
 Version:      1.12.1
 API version:  1.24
 Go version:   go1.6.3
 Git commit:   23cf638
 Built:        Thu Aug 18 17:52:38 2016
 OS/Arch:      linux/amd64

Server:
 Version:      1.12.1
 API version:  1.24
 Go version:   go1.6.3
 Git commit:   23cf638
 Built:        Thu Aug 18 17:52:38 2016
 OS/Arch:      linux/amd64

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

No source file or test is named. Start by reproducing the replicas-mode service behavior with the documented Docker 1.12.1 setup, then trace the swarmkit networking and service-discovery entry points involved in task-container DNS. Done means the task containers can resolve the reported external domain and service name while the issue's host-side behavior remains intact.

Written by the indexing model from the issue text.

Assessment

Tech stack
docker
Domain
distributed-systems, networking
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
30/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.