Apache BifroMQ (Incubating) MQTT Broker

Why the cloudimg image

cloudimg delivers BifroMQ configured as a hardened single node broker, so an authenticated MQTT endpoint answers the moment the instance boots. This matters more than usual here: left at its defaults BifroMQ loads a development authentication provider that accepts every connection without checking the password and grants every publish and subscribe, so a stock deployment is an open broker. The cloudimg image replaces that with real credential checking, and closes the related failure where a broker whose authentication service is unreachable would silently grant every action instead of denying it. Its two unauthenticated management ports are bound to the loopback interface and enforced there by a firewall rule. There is no baked credential: a unique MQTT username and a long random password are generated on each instance's first boot and written to a root only file. The Java runtime is sized for the instance rather than left to a default that would exhaust its memory. The base is fully patched with unattended security upgrades enabled, and every deployment is paired with a step by step deploy guide, backed by 24/7 cloudimg support.