1748: For travis Ci: Need to docker login before pulling images r=mergify[bot] a=ofthesun9
To avoid triggering the Download rate limit from Docker Hub
## What type of PR?
enhancement
## What does this PR do?
This PR add a docker login cmd before launching the build script
Co-authored-by: ofthesun9 <olivier@ofthesun.net>
1730: Use alpine 3.13 to fix CVE-2020-25275 and CVE-2020-24386 r=mergify[bot] a=micw
## What type of PR?
bug-fix
## What does this PR do?
Upgrade dovecot alpine to 3.13 to fix CVEs in dovecot
### Related issue(s)
- #1720
## Prerequistes
Before we can consider review and merge, please make sure the following list is done and checked.
If an entry in not applicable, you can check it or remove it from the list.
- [x] Unless it's docs or a minor change: add [changelog](https://mailu.io/master/contributors/guide.html#changelog) entry file.
Co-authored-by: Michael Wyraz <michael@wyraz.de>
- idna.encode does not encode upper-case letters,
so .lower() has to be called on value not on result
- split email-address on '@' only once
- converted '*'.format(*) to f-strings
- added docstrings
- removed from_dict method
- code cleanup/style (list concat, exceptions, return&else, line-length)
- added TODO comments on possible future changes
- revived original config-update function for backwards compability
- renamed config-dump to config-export to be in line with config-import
- converted '*'.format(*) to f-strings
- converted string-concatenation to f-strings
renamed single letter variables (m => match)
renamed classmethod arguments to cls (model)
removed shadowing of variables (hash, context)
shortened unneeded lambda functions (id)
converted type ... is to isinstance(...)
removed unneded imports (flask)