message: keycloak uses ubi8-minimal now which has microdnf instead of yum
diff: @@ -4,8 +4,8 @@ FROM jboss/keycloak
  USER root
  -RUN yum install -y nc \
  - && yum clean all \
  +RUN microdnf install -y nc \
  + && microdnf clean all \
  && rm -rf /var/cache/yum
  LABEL maintainer="amazee.io"
  