After running the HDP sandbox script, all looks well: The output (see below) says Ambari is up, and the Hortonworks HDP container is started, but Ambari commands don't work. I can't access Ambari on port 8080. Any help will be greatly appreciated. Ambari is up and awaiting connections on port 8080 Waiting for ambari services to start ....................................................................................................................................................................................................................................................................................................................................................................................................Started Hortonworks HDP container [ec2-user@sandbox ~]$ ambari-service status -bash: ambari-service: command not found [ec2-user@sandbox ~]$ sudo ambari-service status sudo: ambari-service: command not found [ec2-user@sandbox ~]$ docker images REPOSITORY TAG IMAGE ID CREATED SIZE hortonworks/sandbox-hdp-standalone 2.6.4 0bade5b49d5f 7 weeks ago 12.4GB ## [ec2-user@sandbox ~]$ ambari-server start -bash: ambari-server: command not found ... View more