Hi All,
I’ using Docker 18.09.5 on Fedora 29 with all the latest updates installed.
The issue I’m facing is, that containers started with docker run work perfectly fine, while starting the same image using docker service create seem to makes the Docker network fail.
Here is an example:
docker run -d --name registry --publish published=5000,target=5000 registry:2
curl -vv http://localhost:5000/v2/
* Trying ::1...
* TCP_NODELAY set
* Connected to localhost (::1) port 5000 (#0)
> GET /v2/ HTTP/1.1
> Host: localhost:5000
> User-Agent: curl/7.61.1
> Accept: */*
>
< HTTP/1.1 200 OK
< Content-Length: 2
< Content-Type: application/json; charset=utf-8
< Docker-Distribution-Api-Version: registry/2.0
< X-Content-Type-Options: nosniff
< Date: Wed, 24 Apr 2019 18:45:21 GMT
<
* Connection #0 to host localhost left intact
So far, all is good. But when I do
docker service create --name registry --publish published=5000,target=5000 registry:2
1tm3r0gdsfmremzdtm2bnpa0w
overall progress: 1 out of 1 tasks
1/1: running
verify: Service converged
docker service ls
ID NAME MODE REPLICAS IMAGE PORTS
1tm3r0gdsfmr registry replicated 1/1 registry:2 *:5000->5000/tcp
Docker reports the service running and the port 5000 exposed. But when I do the curl again, it hangs forever.
curl -vv http://localhost:5000/v2/
* Trying ::1...
* TCP_NODELAY set
* Connected to localhost (::1) port 5000 (#0)
> GET /v2/ HTTP/1.1
> Host: localhost:5000
> User-Agent: curl/7.61.1
> Accept: */*
>
....
Now, from what I can tell it seems that a connection to the container is established, but that the response cannot be routed back to the client somehow. I assume this because I can connect to the ports using telnet if the service is running while it fails immediately if not.
Here is the configuration of the Docker networks in case it is relevant
docker network ls
NETWORK ID NAME DRIVER SCOPE
13ef77dedd8b bridge bridge local
995a6995bb19 docker_gwbridge bridge local
345a91e86f19 host host local
dbb246dc54d2 imse_default bridge local
voodlc38p11g ingress overlay swarm
dba55f7f933f none null local
The behavior is the same with other container too (e.g. nginx, Flask, …) so I assume I missed something.
Any help is very much appreciated, as I’m struggling to make this work for 2 days now and all my G**gle searches didn’t help me either.
If you need any more information, please let me know.
Cheers