add makefile

[sergerdn]

Changes:

• Makefile created for all things that we need to start containers
• lemur-build-docker/lemur moved to lemur-build-docker/.lemur because I think it is more clear that it is just build dependency.
• add openssl to app container
• disabled # POSTGRES_DB_MODE=init because developers can lost all their data by accident, I did it a few times for the last a few days :flushed:
• reducing build time for builder by adding --no-install-recommends to apt-get
• container os version changed to ubuntu:20.04 because:
  • lemur's docs says, that minimum python version is 3.7, but ubuntu:18.04 supported by default only python 3.6.x
  • I got some strange bug with python 3.6 and cfssl plugin

I also created PR https://github.com/Netflix/lemur/pull/3389 to make sure that tests passed on:

• ubuntu:20.04
• python 3.8
• postgresql 12

[jtschladen]

Before I merge, I wanted to discuss the move of lemur to .lemur. One of my goals with re-writing this was to allow developers to make changes to the repo to test in a Docker container locally, rather than running directly on the host machine. Therefore, I don't necessarily consider the lemur repo to be just a build dependency - it's part of the core purpose of this Docker setup, and definitely would want to be used/viewed by someone running this. Therefore, I think I'd prefer to leave it as lemur rather than .lemur.

[sergerdn]

Before I merge, I wanted to discuss the move of lemur to .lemur. One of my goals with re-writing this was to allow developers to make changes to the repo to test in a Docker container locally, rather than running directly on the host machine. Therefore, I don't necessarily consider the lemur repo to be just a build dependency - it's part of the core purpose of this Docker setup, and definitely would want to be used/viewed by someone running this. Therefore, I think I'd prefer to leave it as lemur rather than .lemur.

Ok, agree.

[jtschladen]

Thanks @sergerdn !