ghcr.io docker images are always last release (2.3.0)

[ChrisJefferson]

Notice how the ghcr "master" image is the last release of conjure (from 2019).

caj/ $ docker run ghcr.io/conjure-cp/conjure:master conjure --version
Conjure: The Automated Constraint Modelling Tool
Release version 2.3.0
Repository version 08dc983cf (2019-06-23 17:51:50 +0300)

This is (I guess) because the docker image is hard wired to 2.3.0, even though the ghcr image is rebuilt for master, and branches.

Could it be changed so master gives the current master branch?

@ZachNewbery

[ChrisJefferson]

I think we need to do something like described here: https://github.com/docker/build-push-action/issues/276

I started doing this (I made the necessary change to the dockerfile) and accidentally pushed it to master (woops!), including breaking the github action. I've undone the change -- but we need to make the change described in that issue to get master commits.

[ozgurakgun]

this is fixed