FROM keycloak/keycloak:26.6.2 ADD --chown=1000:0 https://github.com/jacekkow/keycloak-protocol-cas/releases/download/26.6.2/keycloak-protocol-cas-26.6.2.jar \ /opt/keycloak/providers/keycloak-protocol-cas.jar COPY ./keycloak-configuration.json /opt/keycloak/data/import/realm.json CMD ["start-dev", "--import-realm", "--http-port", "8181"]