**Motivation**
We want to avoid broken installations of wikibase-docker due to changes to wikidata-query-gui (e.g {T227031}).
**Problem**
Currently, we are pulling wikidata-query-gui master as part of building `latest` image of `wdqs-frontend` in our wikibase-docker bundle (check https://github.com/wmde/wikibase-docker/blob/master/wdqs-frontend/latest/Dockerfile#L7).
If wikidata-query-gui changes in any incompatible way with the current configuration we supply as part of building this image, as seen in {T227031}, then the resulting image might end up being broken.
**Suggested Solution**
On the first day of each month take the current "latest" image, and release it tagged as YYYY-MM.
This is not going to guarantee there are no broken images, but at least there will be a possible downgrade/upgrade path available for people using the image.
**AC**
[ ] There is a script which creates a new folder in the github repository, named YYYY-MM at the beginning of each month.
[ ] There is a script that adds a docker file which builds Query Service UI from the most recent commit available at the start of the month, and when pushed by Travis should be tagged with YYYY-MM on docker hub,
[ ] The scripts generating the above should be run monthly on CI server
[ ] Readme should be changed to contain a note that that only 6 most recent monthly "versions" of Query Service UI code are built and updated.