improve dev experience

[nics]

there is now a docker compose that loads everything except an oidc server but further refinements are possible:

• [x] add a mock oidc server to the compose to make it a completely isolated environment
• [x] add live reloading for go to the docker app
• [x] add live reloading for assets to the docker app

resources:

• https://firehydrant.com/blog/develop-a-go-app-with-docker-compose/
• https://github.com/cespare/reflex
• https://www.mastertheboss.com/keycloak/keycloak-with-docker/

[nicolasfranck]

This is handy: https://docs.magnolia-cms.com/magnolia-sso/3.1.x/guides/using-a-mock-oidc-server.html. Is nodejs though. But allows for a random user and password. The uid returned is stored in attribute sub. Important for your client configuration (e.g. circulation uses preferred_username)

[nicolasfranck]

See https://github.com/ugent-library/mock-oidc-server

For those willing to put everything in a docker-compose, there is a caveat: not only the end user communicates with the oidc server, but also the oidc client (for token validation). Both need to available to the end user and the client in the exact same way. So if the oidc server is declared to be available at localhost:3000 to the end user (via a port mapping), the oidc server will also try to fetch from that host. In a default docker-compose setup, this is not possible, unless you agree to create a bridged network name localhost?