Alerting on latency-related issues

We'll use the go-demo-5 application to measure latency, so our first step is to install it.

 1  GD5_ADDR=go-demo-5.$LB_IP.nip.io 2
 3  helm install \
 4      https://github.com/vfarcic/go-demo-5/releases/download/    0.0.1/go-demo-5-0.0.1.tgz \
 5      --name go-demo-5 \
 6      --namespace go-demo-5 \
 7      --set ingress.host=$GD5_ADDR

We generated an address that we'll use as Ingress entry-point, and we deployed the application using Helm. Now we should wait until it rolls out.

 1  kubectl -n go-demo-5 \
 2      rollout status \
 3      deployment go-demo-5

Before we proceed, we'll check whether the application is indeed working correctly by sending an HTTP request.

 1  curl "http://$GD5_ADDR/demo/hello"

The output should be the familiar hello, ...

Get The DevOps 2.5 Toolkit now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.