In a working integration with prometheus:

Deploying trhough kie server:

http://<url>:8080/kie-server/services/rest/server/containers/<artifact>

is reported in /metrics: http://<url>:8080/kie-server/services/rest/metrics

But deploying through decision central:

[PUT] http://<url>:8080/decision-central/rest/controller/management/servers/<kie-server>/containers/<artifact>

there's no report