1499: Harmonization of the various docker-compose.yml templates r=mergify[bot] a=ofthesun9
## What type of PR?
Mainly documentation and update of the docker-compose.yml templates
## What does this PR do?
- Update of setup/flavors/stack/docker-compose.yml and docs/compose/docker-compose.yml to keep parity with setup/flavors/compose/docker-compose.yml (last changes with pr1444)
- Also refresh of the mkdir command found in setup/flavors/stack/setup.html to cope with the creation of mailqueue; overrides/nginx, overrides/dovecot folders.
### Related issue(s)
None
## Prerequistes
- [x] In case of feature or enhancement: documentation updated accordingly
Co-authored-by: ofthesun9 <olivier@ofthesun.net>
Harmonization (following pr1444) between:
- docs/compose/docker-compose.yml
- setup/flavors/stack/docker-compose.yml
- setup/flavors/compose/docker-compose.yml
Also refresh of the mkdir command found in setup/flavors/stack/setup.html
This will make network configuration and host based authentication
more robust, across different deployment platforms.
The options `RELAYNETS` and`POD_ADDRESS_RANGE` are kept for compatibility.
However, their usage have become optional.