zstadler 746a2dc7b9 Support multiple openmaptiles instances by specifying a Docker Compose project (#806) ...

The implementation adds the `DC_PROJECT` parameter. It can also be set by an environment variable in the hosting shell. The environment variable can be overwritten by a make parameter, including `DC_PROJECT=` which restores the automatic project name.

#### _NOTE:_
It may be worthwhile to review the following make targets that are currently not impacted by the PR:
- `make start-postserve`
- `make list-docker-images`
- `make remove-docker-images`
- `make docker-unnecessary-clean`

This PR was suggested by @nyurik:

> zstadler  3:30 PM
Is it possible to run two instances of openmaptiles, and the postgis container in particular, on the same Linux host?
nyurik  4:17 PM
use docker-compose --project-name -- that should allow you to run everything in parallel
4:17
might need to update make file
4:17
btw, that would be a good PR for makefile -- to specify --project-name based on the current DIR name, but so that it can be overwritten by a makefile param


Co-authored-by: Yuri Astrakhan <yuriastrakhan@gmail.com>

2020-04-09 12:05:01 -04:00

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