Currently the dockerfile embeds the "master key" in plaintext. This isn't a security issue yet cause the build doesn't push into production. In production, the master key has to stay stable and be in sync with the fronend key send to each cloud function in order for search to work.
We need to make a clear decision on whether or not github's build of the docker image is just a CI test for stability of commit, or if it is actually creating the real produciton image.