Updated on 2020-10-13
https://hub.docker.com/r/jboss/keycloak
https://www.keycloak.org/documentation
关闭强制 SSL 连接
/opt/jboss/keycloak/bin/kcadm.sh update realms/master -s sslRequired=NONE --server http://keycloak:8080/auth --realm master --user admin --password admin