CKA Labs (3) — Deploy a simple Kubernetes Application

In part 3 of the Certified Kubernetes Administrator Labs Challenge, we will deploy a simple application by file and by command. Then we will expose and access the service from within the Kubernetes Cluster. After that, we will explore how Kubernetes Deployments helps us maintain the service by automatically restarting failed PODS through ReplicaSets. Last, but not least, we will discuss how to access the service from outside the Kubernetes cluster.

Metricbeat on Kubernetes – Kubernetes Series (11)

Three ways of installing Metricbeat (a performance monitoring solution) on Kubernetes are compared: native vs. helm with set options vs helm with values options. Metricbeat helps us monitoring performance indicators like CPU, Memory, Disk and many more on your Kubernetes nodes. We will show that (and why) installing Metricbeat via helm based on values file is the quickest way of installing Metricbeat. You just need to copy the Metricbeat chart’s values file, adapt it to your needs and run a helm command in order to roll out the Metricbeat agent to all nodes of your Kubernetes cluster.