[keycloak-user] server hang on adding admin user

[Tim Dudgeon]

I'm get a strange and infrequent problem when I add the admin user to 
keycloak.
I'm running keycloak inside a docker container (the 
jboss/keycloak-postgres:1.9.1.Final image), and I add the admin user 
using the KEYCLOAK_USER and KEYCLOAK_PASSWORD environment variables set 
the first time the container is started.

Occasionally the server seems to hang and the docker container can't bet 
stopped or even killed.
The logs show this:

keycloak_1 | 10:56:19,876 INFO [org.jboss.as] (Controller Boot Thread) 
WFLYSRV0060: Http management interface listening on 
http://127.0.0.1:9990/management
keycloak_1 | 10:56:19,876 INFO [org.jboss.as] (Controller Boot Thread) 
WFLYSRV0051: Admin console listening on http://127.0.0.1:9990
keycloak_1 | 10:56:19,877 INFO [org.jboss.as] (Controller Boot Thread) 
WFLYSRV0025: Keycloak 1.9.1.Final (WildFly Core 2.0.10.Final) started in 
12810ms - Started 422 of 789 services (529 services are lazy, passive or 
on-demand)
keycloak_1 |
keycloak_1 | Added 'admin' to 
'/opt/jboss/keycloak/standalone/configuration/keycloak-add-user.json', 
restart server to load user

Seem like keycloak adds the admin user then gives up on life completely 
and can't be stopped.
This only happens occasionally, but frequently enough to be a problem.

Any ideas what's happening here?

Tim


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