mailu/core/nginx
bors[bot] e46153c0b1
Merge
1114: Resolve HOST to ADDRESS only if ADDRESS is not already set r=mergify[bot] a=micw

## What type of PR?

bug-fix

## What does this PR do?

~Makes the rsolving from hosts to ips at startup configurable~

I rewrote the pull request after  was merged. Now it resolves HOSTs to ADDRESSes only of ADDRESSes are not already set. So on kubernetes we can jsut set the address and have working service discovery.

### Related issue(s)
- closes 

## Prerequistes

~Minor change, backward compatible~
Changelog will be added

Co-authored-by: Michael Wyraz <michael@wyraz.de>
..
conf front: advertise real capabilites of mail-backends
static Implement favicon package
Dockerfile Resolve HOST_* to *_ADDRESS only if *_ADDRESS is not already set
certwatcher.py Add certificate watcher for external certs to reload nginx
config.py Resolve HOST_* to *_ADDRESS only if *_ADDRESS is not already set
letsencrypt.py Standarize image by using shared / similair layers
start.py Add certificate watcher for external certs to reload nginx