[Podman] Re: linking of containers

I probably misused podman. I do not use it for creating pods. I use podman as a substitute for Docker. I want to build a GitHub Pull Requst builder for ABAP projects. I want to start a fresh container for every build. Every new container gets its own IP - (not as Docker which starts with 172.17.0.2). My host is RHEL with not so recent Node which I need to run some ABAP transformations, thus I use another container with the most recent Node and Python. The tools container must know hostname or IP of the ABAP system container because ABAP systems are reachable only via TCP. (I cannot rely on the fact that IPs are assigned sequentially from 172.17.0.2 ...) I wanted to use `run --link` but it is not supported at all. I thought I can use `run --net` to share Network NS with the ABAP system but it seems that `--net` has different semantics than Docker's `--net`.

Eventually I use IP=$(podman inspect --format {{ .NetworkSettings.IPAddress }} abap) and `podman run --add-host abap:$IP ...` It so not so convenient but it works for me. ________________________________ From: Matt Heon Sent: Monday, September 23, 2019 18:54 To: Filak, Jakub Cc: podman(a)lists.podman.io Subject: Re: [Podman] linking of containers On 2019-09-23 16:07, Filak, Jakub wrote: >Greetings! > >Do you plan to add `--link` to`podman run`? > > >Regards, >Jakub No, we don't presently have plans to add `--link` support. We prefer pods for allowing inter-container communication. If you have a use-case for which pods don't work, we'd be interested in hearing about it. Thanks, Matt Heon

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