Consul

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Consul

Author: Outlyer | Version: 1.0.0 | License: MIT | Categories: configuration

Consul is a distributed, highly available, and data center aware solution to connect and configure applications across dynamic, distributed infrastructure.

This integration will monitor your Consul cluster by collecting metrics from its RESTful HTTP API and the agent /metrics endpoint.

Once enabled you will get a default Consul dashboard and alert rules template to help you get started monitoring your key Consul metrics.

Metric Name Type Labels Unit Description
consul_catalog_services Gauge     Total number of services.
consul_client_agents Gauge     Total number of agents running in client mode.
consul_datacenters Gauge     Total number of datacenters.
consul_health_failure_tolerance Gauge     Number of voting servers that the cluster can lose while continuing to function.
consul_health_node_status Gauge check, node, status   Node checks status.
consul_health_service_status Gauge check, node, status, service_id, service_name   Service checks status.
consul_raft_leader Gauge     Indicates whether the cluster has a raft leader.
consul_raft_peers Gauge     Total number of agents running in server mode.
consul_runtime_alloc_bytes Gauge   byte Number of bytes allocated by the Consul process.
consul_runtime_heap_objects Gauge     Number of objects allocated on the heap.
consul_runtime_num_goroutines Gauge     Rumber of running goroutines.
consul_serf_lan_members Gauge     Total number of members in the cluster.

Run the Consul plugin against your Consul instances and it will start collecting the metrics. If your cluster is secured with RPC encryption using TLS or ACL tokens, you must provide additional plugin configurations via environment variables.

Plugin Environment Variables

The Consul plugin can be customized via environment variables.

Variable Default Description
protocol http Consul REST API protocol. Use https when TLS is enabled.
host localhost Consul host.
port 8500 Consul REST API port.
client_cert_file   Path to a client cert file to use for TLS when verify_incoming is enabled.
private_key_file   Path to a client key file to use for TLS when verify_incoming is enabled.
ca_bundle_file   Path to the CA file to use for TLS when communicating with Consul.
acl_token   The token ID used in each RPC request to the servers when ACL system is used.
Version Release Date Description
1.0 31-May-2018 Initial version of our Consul monitoring integration.