Add initial documentation for rabbitmq input. (influxdata#2745)

CHANGELOG.md

@@ -80,6 +80,7 @@ be deprecated eventually.
 - [#2635](https://github.com/influxdata/telegraf/issues/2635): add tcp keep-alive to socket_listener & socket_writer
 - [#2031](https://github.com/influxdata/telegraf/pull/2031): Add Kapacitor input plugin
 - [#2732](https://github.com/influxdata/telegraf/pull/2732): Use go 1.8.1
+- [#2712](https://github.com/influxdata/telegraf/issues/2712): Documentation for rabbitmq input plugin
 
 ### Bugfixes
 

plugins/inputs/rabbitmq/README.md

@@ -0,0 +1,121 @@
+# RabbitMQ Input Plugin
+
+Reads metrics from RabbitMQ servers via the [Management Plugin](https://www.rabbitmq.com/management.html).
+
+For additional details reference the [RabbitMQ Management HTTP Stats](https://cdn.rawgit.com/rabbitmq/rabbitmq-management/master/priv/www/doc/stats.html).
+
+### Configuration:
+
+```toml
+[[inputs.rabbitmq]]
+  ## Management Plugin url. (default: http://localhost:15672)
+  # url = "http://localhost:15672"
+  ## Tag added to rabbitmq_overview series; deprecated: use tags
+  # name = "rmq-server-1"
+  ## Credentials
+  # username = "guest"
+  # password = "guest"
+
+  ## Optional SSL Config
+  # ssl_ca = "/etc/telegraf/ca.pem"
+  # ssl_cert = "/etc/telegraf/cert.pem"
+  # ssl_key = "/etc/telegraf/key.pem"
+  ## Use SSL but skip chain & host verification
+  # insecure_skip_verify = false
+
+  ## Optional request timeouts
+  ##
+  ## ResponseHeaderTimeout, if non-zero, specifies the amount of time to wait
+  ## for a server's response headers after fully writing the request.
+  # header_timeout = "3s"
+  ##
+  ## client_timeout specifies a time limit for requests made by this client.
+  ## Includes connection time, any redirects, and reading the response body.
+  # client_timeout = "4s"
+
+  ## A list of nodes to pull metrics about. If not specified, metrics for
+  ## all nodes are gathered.
+  # nodes = ["rabbit@node1", "rabbit@node2"]
+```
+
+### Measurements & Fields:
+
+- rabbitmq_overview
+  - channels (int, channels)
+  - connections (int, connections)
+  - consumers (int, consumers)
+  - exchanges (int, exchanges)
+  - messages (int, messages)
+  - messages_acked (int, messages)
+  - messages_delivered (int, messages)
+  - messages_published (int, messages)
+  - messages_ready (int, messages)
+  - messages_unacked (int, messages)
+  - queues (int, queues)
+
+- rabbitmq_node
+  - disk_free (int, bytes)
+  - disk_free_limit (int, bytes)
+  - fd_total (int, file descriptors)
+  - fd_used (int, file descriptors)
+  - mem_limit (int, bytes)
+  - mem_used (int, bytes)
+  - proc_total (int, erlang processes)
+  - proc_used (int, erlang processes)
+  - run_queue (int, erlang processes)
+  - sockets_total (int, sockets)
+  - sockets_used (int, sockets)
+
+- rabbitmq_queue
+  - consumer_utilisation (float, percent)
+  - consumers (int, int)
+  - idle_since (string, time - e.g., "2006-01-02 15:04:05")
+  - memory (int, bytes)
+  - message_bytes (int, bytes)
+  - message_bytes_persist (int, bytes)
+  - message_bytes_ram (int, bytes)
+  - message_bytes_ready (int, bytes)
+  - message_bytes_unacked (int, bytes)
+  - messages (int, count)
+  - messages_ack (int, count)
+  - messages_ack_rate (float, messages per second)
+  - messages_deliver (int, count)
+  - messages_deliver_rate (float, messages per second)
+  - messages_deliver_get (int, count)
+  - messages_deliver_get_rate (float, messages per second)
+  - messages_publish (int, count)
+  - messages_publish_rate (float, messages per second)
+  - messages_ready (int, count)
+  - messages_redeliver (int, count)
+  - messages_redeliver_rate (float, messages per second)
+  - messages_unack (integer, count)
+
+### Tags:
+
+- All measurements have the following tags:
+  - url
+
+- rabbitmq_overview
+  - name
+
+- rabbitmq_node
+  - node
+
+- rabbitmq_queue
+  - url
+  - queue
+  - vhost
+  - node
+  - durable
+  - auto_delete
+
+### Sample Queries:
+
+
+### Example Output:
+
+```
+rabbitmq_queue,url=http://amqp.example.org:15672,queue=telegraf,vhost=influxdb,[email protected],durable=true,auto_delete=false,host=amqp.example.org messages_deliver_get=0i,messages_publish=329i,messages_publish_rate=0.2,messages_redeliver_rate=0,message_bytes_ready=0i,message_bytes_unacked=0i,messages_deliver=329i,messages_unack=0i,consumers=1i,idle_since="",messages=0i,messages_deliver_rate=0.2,messages_deliver_get_rate=0.2,messages_redeliver=0i,memory=43032i,message_bytes_ram=0i,messages_ack=329i,messages_ready=0i,messages_ack_rate=0.2,consumer_utilisation=1,message_bytes=0i,message_bytes_persist=0i 1493684035000000000
+rabbitmq_overview,url=http://amqp.example.org:15672,host=amqp.example.org channels=2i,consumers=1i,exchanges=17i,messages_acked=329i,messages=0i,messages_ready=0i,messages_unacked=0i,connections=2i,queues=1i,messages_delivered=329i,messages_published=329i 1493684035000000000
+rabbitmq_node,url=http://amqp.example.org:15672,[email protected],host=amqp.example.org fd_total=1024i,fd_used=32i,mem_limit=8363329126i,sockets_total=829i,disk_free=8175935488i,disk_free_limit=50000000i,mem_used=58771080i,proc_total=1048576i,proc_used=267i,run_queue=0i,sockets_used=2i 149368403500000000
+```

plugins/inputs/rabbitmq/rabbitmq.go

@@ -140,8 +140,11 @@ type gatherFunc func(r *RabbitMQ, acc telegraf.Accumulator)
 var gatherFunctions = []gatherFunc{gatherOverview, gatherNodes, gatherQueues}
 
 var sampleConfig = `
+  ## Management Plugin url. (default: http://localhost:15672)
   # url = "http://localhost:15672"
-  # name = "rmq-server-1" # optional tag
+  ## Tag added to rabbitmq_overview series; deprecated: use tags
+  # name = "rmq-server-1"
+  ## Credentials
   # username = "guest"
   # password = "guest"
 
@@ -174,7 +177,7 @@ func (r *RabbitMQ) SampleConfig() string {
 
 // Description ...
 func (r *RabbitMQ) Description() string {
-	return "Read metrics from one or many RabbitMQ servers via the management API"
+	return "Reads metrics from RabbitMQ servers via the Management Plugin"
 }
 
 // Gather ...