Dynatrace Detects Problem when a Kubernetes Pod Is in Crash Loop.
Kubernetes pods
Dynatrace Detects Problem when a Kubernetes Pod Is in Crash Loop.
When one of your containers has problems starting, it may result in a crash loop and, eventually, Kubernetes backing off to restart this container. Verify that Dynatrace notices a crash loop and will alert you to take action.Kubernetes pods
Dynatrace Detects Problem when a Kubernetes Pod Is in Crash Loop.
Kubernetes pods
Dynatrace Detects Problem when a Kubernetes Pod Is in Crash Loop.
When one of your containers has problems starting, it may result in a crash loop and, eventually, Kubernetes backing off to restart this container. Verify that Dynatrace notices a crash loop and will alert you to take action.Kubernetes pods
Intent
Verify that Dynatrace alerts you on pods not being ready to accept traffic for a certain amount of time.
Motivation
Kubernetes features a readiness probe to determine whether your pod is ready to accept traffic. If it isn't becoming ready, Kubernetes tries to solve it by restarting the underlying container and hoping to achieve its readiness eventually. If this isn't working, Kubernetes will eventually back off to restart the container, and the Kubernetes resource remains non-functional.
Structure
First, check that Dynatrace doesn't have any problems for an entity and doesn't alert already on non-ready containers. As soon as one of the containers is crash looping, caused by the Steadybit attack crash loop, Dynatrace should detect the problem and alert to ensure your on-call team is taking action.
Environment Example
The Kubernetes deployment hot-deals
consists of two pods.
We are attacking one of the two pods by causing a crash loop and waiting for Dynatrace to detect the problem of the crashing pod.
Solution Sketch
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.json (2 kB)
It's quick and easy
- Download .json file
1.
- Upload it inside Steadybit
2.
- Start your experiment!
3.