<p>What is the best way to send slack notification when a k8s cluster node is not ready? (Master and worker)</p>

<p>I already have Prometheus and alert manager up and running. Ideally I would use them to do that.</p>

ThatChrisGuy
<p>Use kube-state-metrics and an alert rule. The query to start with is something like <code>kube_node_status_condition{condition="Ready",status!="true"} &gt; 0</code> but you can play with it as needed.</p>
