Docker setup no longer works

[dch0ph]

Screenshots with links illustrating the problem

Testing the instructions in Docker.md, the docker compose up import fails at RUN apt-key (as above)

The warning is presumably from the message that apt-key is deprecated, and it then hangs with no response from the key server.

The current Dockerfile is based on a now quite old version of Ubuntu (18.04), and there are alternative, and more up-to-date, instructions on Switch2OSM. Although these are more oriented to setting up OSM Carto as part of a full tile server, and don't refer to setting up kosmtik.

Perhaps somebody who uses this route / kosmtik could update/fix the instructions? [Personally I find it easier to test rendering / output maps from printing using the python mapnik bindings and nik4.py]

[pnorman]

I don't see an error there. The warning is fine. I know keyserver.ubuntu.com sometimes times out. Moving to a more recent OS would avoid the need for PPAs and make this line moot.

Should we remove the docker setup? I don't think we have enough people involved that we can keep it working.

[dch0ph]

All the times I have tried it, it hangs waiting for the keyserver, although this could be a problem at my end, rather than reflecting the deprecated `apt-key' (which was my assumption). So, yes, not strictly an error, but still a fail.

I'm not convinced that the docker setup is worth maintaining. If people are installing a tile server, then there are more up-to-date instructions elsewhere. If they are wanting to develop the style, then they probably want a more general development environment (which might involve a docker container).