I'm creating multiple pods at the same time in Openshift, and I also want to check the containers inside the pods are working correctly. Some of these containers can take a while to start-up, and I don't want to wait for one pod to be fully running before starting up the other one.

Are there any Openshift / Kubernetes checks I can do to ensure a container has booted up, while also going ahead with other deployments?

CodePudding user response：

Please configure the Liveness and Readiness Probes

• Liveness : Under what circumstances is it appropriate to restart the pod?
• Readiness : under what circumstances should we take the pod out of the list of service endpoints so that it no longer responds to requests?

CodePudding user response：

...Some of these containers can take a while to start-up

Liveness probe is not a good option for containers that requires extended startup time, mainly because you have to set a long time to cater for startup; which is irrelevant after that - result to unable to detect problem on time during execution. Instead, you use startup probe to handle and detect problem during startup and handover to liveness probe upon success; or restart container according to its restartPolicy should the startup probe failed.