Added VERSIONING.md

[AndrewSav]

Description

This commit proposes versioning scheme for mailserver2 images. Fixes https://github.com/mailserver2/mailserver/issues/8

• What is the current behavior (you can also link to an open issue here) ? Currently we always push to latest in Docker Hub
• What is the new behavior (if this is a feature change) ? Tag version in Github, push that version to Docker Hub and tag it as latest

Type of change

• [X] Documentation only

Status

• [X] Ready

How has this been tested ?

Sine this is a documentation change at this stage, unit tests are irrelevant. However since it proposes changes in the process this is expected to be peer reviewed before getting merged.

What's next ?

Once this change is merged the current versions in Docker Hub can be fixed in the following manner:

docker pull mailserver2/mailserver
docker tag mailserver2/mailserver mailserver2/mailserver:1.1.1
docker push mailserver2/mailserver:1.1.1

docker pull mailserver2/postfixadmin
docker tag mailserver2/postfixadmin mailserver2/postfixadmin:3.2.4
docker push mailserver2/postfixadmin:3.2.4

docker pull mailserver2/rainloop
docker tag mailserver2/rainloop mailserver2/rainloop:1.14.0
docker push mailserver2/rainloop:1.14.0

docker pull mailserver2/debian-mail-overlay
docker tag mailserver2/debian-mail-overlay mailserver2/debian-mail-overlay:1.0.0
docker mailserver2/debian-mail-overlay:1.0.0

I'm happy to do the change after it's merged, or feel free to do it yourself. The Wiki also might need updating.

It's probably too late to tag GitHub repos with this versions now, but it should be done for each subsequent Docker Hub push.

[AndrewSav]

The merge button is greyed out. Is it because ci/dockercloud Expected — Waiting for status to be reported does not come through? What is that and how is that supposed to work @SaraSmiseth

[AndrewSav]

I removed "ci/dockercloud" required status check. Please let me know if there are issues with that.

[AndrewSav]

@SaraSmiseth pushed to dockerhub

[SaraSmiseth]

I removed "ci/dockercloud" required status check. Please let me know if there are issues with that.

It's OK. When I disabled the automatic building I forgot about that check.