mailu/core
bors[bot] a5b1d36171
Merge
2017: rspamd: get dkim keys via REST API instead of filesystem r=mergify[bot] a=ghostwheel42

## What type of PR?

enhancement

## What does this PR do?

rspamd now uses hashicorp's vault api v1 to get dkim keys and selectors for a domain.
this allows future enhancement (multiple keys) without reconfiguring and restarting rspamd.
it also makes mounting the /dkim volume into the rspamd container unnecessary.

### Related issue(s)

- improves and closes  
- allows to implement key rotation using multiple selectors (see )
- allows to implement dkim for alternate domains (see )
- fixes and closes  (selector transmitted by admin container is used)
- closes  (no keys on disk)
- allows to implement key rotation from the outside (ie. via a helper script talking to some dns provider's api) (see )

## Prerequisites

- [X] In case of feature or enhancement: documentation updated accordingly
- [X] Unless it's docs or a minor change: add [changelog](https://mailu.io/master/contributors/workflow.html#changelog) entry file.


Co-authored-by: Alexander Graf <ghostwheel42@users.noreply.github.com>
..
admin Merge
dovecot Give alpine 3.14.2 a shot
nginx Merge remote-tracking branch 'upstream/master' into adminlte3_fixes
none Give alpine 3.14.2 a shot
postfix Use the regexp engine since we have one
rspamd PoC rspamd use dkimkeys from admin using vault api