New man page: rabbitmq-diagnostics(8)

(cherry picked from commit 67de91c)

Author: michaelklishin

docs/rabbitmq-diagnostics.8

@@ -304,6 +304,155 @@ See
 in
 .Xr rabbitmqctl 8
 .\" ------------------------------------
+.It Cm alarms
+.Pp
+Lists resource alarms, if any, in the cluster.
+.Pp
+See
+.Lk https://www.rabbitmq.com/alarms.html "RabbitMQ Resource Alarms guide"
+to learn more.
+.Pp
+Example:
+.Sp
+.Dl
+.Nm
+alarms
+.\" ------------------------------------
+.It Cm listeners
+.Pp
+Lists listeners (bound sockets) on this node. Use this to inspect
+what protocols and ports the node is listening on for client, CLI tool
+and peer connections.
+.Pp
+See
+.Lk https://www.rabbitmq.com/networking.html "RabbitMQ Networking guide"
+to learn more.
+.Pp
+Example:
+.Sp
+.Dl
+.Nm
+listeners
+.\" ------------------------------------
+.It Cm is_running
+.Pp
+Reports if RabbitMQ application is fully booted and running (that is, not stopped) on
+the target node.
+.Pp
+Example:
+.Sp
+.Dl
+.Nm
+is_running
+.\" ------------------------------------
+.It Cm is_booting
+.Pp
+Reports if RabbitMQ application is currently booting (not booted/running or stopped) on
+the target node.
+.Pp
+Example:
+.Sp
+.Dl
+.Nm
+is_booting
+.\" ------------------------------------
+
+check_port_connectivity [-t <timeout>]
+.\" ------------------------------------
+.It Cm check_running
+.Pp
+Health check that fails (returns with a non-zero code) if the RabbitMQ
+application is not running on the target node.
+.Pp
+If
+.Cm rabbitmqctl(8)
+was used to stop the application, this check will fail.
+.Pp
+Example:
+.Sp
+.Dl
+.Nm
+check_running
+.\" ------------------------------------
+.It Cm check_local_alarms
+.Pp
+Health check that fails (returns with a non-zero code) if there are alarms
+in effect on the target node.
+.Pp
+See
+.Lk https://www.rabbitmq.com/alarms.html "RabbitMQ Resource Alarms guide"
+to learn more.
+.Pp
+Example:
+.Sp
+.Dl
+.Nm
+check_local_alarms
+.\" ------------------------------------
+.It Cm check_alarms
+.Pp
+Health check that fails (returns with a non-zero code) if there are alarms
+in effect on any of the cluster nodes.
+.Pp
+See
+.Lk https://www.rabbitmq.com/alarms.html "RabbitMQ Resource Alarms guide"
+to learn more.
+.Pp
+Example:
+.Sp
+.Dl
+.Nm
+check_alarms
+.\" ------------------------------------
+.It Cm check_port_connectivity
+.Pp
+Health check that fails (returns with a non-zero code) if any listener ports
+on the target node cannot accept a new TCP connection opened by
+.Nm.
+The check only validates if a new TCP connection is accepted. It does not
+perform messaging protocol handshake or authenticate.
+.Pp
+See
+.Lk https://www.rabbitmq.com/networking.html "RabbitMQ Networking guide"
+to learn more.
+.Pp
+Example:
+.Sp
+.Dl
+.Nm
+check_port_connectivity
+.\" ------------------------------------
+.It Cm check_protocol_listener
+.Pp
+Health check that fails (returns with a non-zero code) if the target node
+does not have a listener for the specified protocol.
+.Pp
+See
+.Lk https://www.rabbitmq.com/networking.html "RabbitMQ Networking guide"
+to learn more.
+.Pp
+Example:
+.Sp
+.Dl
+.Nm
+check_protocol_listener mqtt
+.\" ------------------------------------
+.It Cm check_port_listener
+.Pp
+Health check that fails (returns with a non-zero code) if the target node
+is not listening on the specified port (there is no listener that
+uses that port).
+.Pp
+See
+.Lk https://www.rabbitmq.com/networking.html "RabbitMQ Networking guide"
+to learn more.
+.Pp
+Example:
+.Sp
+.Dl
+.Nm
+check_port_listener 5672
+.\" ------------------------------------
 .It Cm status
 See
 .Cm status
@@ -316,18 +465,6 @@ See
 in
 .Xr rabbitmqctl 8
 .\" ------------------------------------
-.It Cm node_health_check
-Performs several health checks of the target node.
-.Pp
-Verifies the rabbit application is running and alarms are not set,
-then checks that every queue and channel on the node can emit basic stats.
-.Pp
-Example:
-.Sp
-.Dl
-.Nm
-node_health_check -n rabbit@hostname
-.\" ------------------------------------
 .It Cm environment
 See
 .Cm environment
@@ -400,3 +537,15 @@ See
 in
 .Xr rabbitmqctl 8
 .\" ------------------------------------
+.It Cm node_health_check
+Performs several health checks of the target node.
+.Pp
+Verifies the rabbit application is running and alarms are not set,
+then checks that every queue and channel on the node can emit basic stats.
+.Pp
+Example:
+.Sp
+.Dl
+.Nm
+node_health_check -n rabbit@hostname
+.\" ------------------------------------