Separates out generation of a shared jwt_secret so this is always created (regardless of application choices)
This secret is now additionally made available to the openstack service and cluster builder containers as an environment variable (JWT_SECRET)
This is with the intention of those applications using this secret to validate bearer tokens received from visualiser (and potentially for other cross application communication in the future)
For prod deployment:
jwt_secretso this is always created (regardless of application choices)JWT_SECRET)Linked to https://github.com/alces-flight/concertim-ct-visualisation-app/pull/135