Hands-On Infrastructure Monitoring with Prometheus

Using Consul service discovery

For this chapter, we configured Consul as an example service discovery system in our virtual machine-based test environment – Consul is quite simple to set up, which makes it perfect for our example. The way it works is by having an agent running in client mode in each node and an odd number of agents running in server mode that maintain the service catalog. The services that are available on the client nodes are communicated to the server nodes directly, while cluster membership is propagated using a gossip protocol (random peer-to-peer message passing) between every node in the cluster. Since our main objective is to showcase the Prometheus service discovery using Consul, we configured our test environment ...