[keycloak-user] Adding alwaysHttps to Hostname SPI in Docker

[Hylton Peimer]

I'm trying to figure out how to add the "alwaysHttps=true" to the Hostname
Provider in Keycloak running under Docker.

I've tried the following:

1) Modifying the standalone.xml and adding with sed:
name=properties.alwaysHttps,value="true"

2) Adding a CLI to the startup-scripts directory, but this fails since the
server isn't running and the connect doesn't happen.

3) Modifying the tools/cli/hostname.cli file and adding:

/subsystem=keycloak-server/spi=hostname/provider=fixed:write-attribute(name=properties.alwaysHttps,value="true")

What is the correct approach to adding the alwaysHttps when overriding the
default Dockerfile ?