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Kubernetes Hacks and Tricks – #8 Pod Preemption, Eviction and Priority classes
In the previous article, we learnt about QoS classes in Kubernetes and how Kubernetes evicts Pods if node resources are...
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Kubernetes Hacks and Tricks – #7 Pod and Container Resource and QoS classes
Do you know how Kubernetes decides which Pods should be evicted if the node resource is insufficient or running out?...
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Kubernetes Hacks and Tricks – #6 Find Pods running from deprecated registry
As you know, recently, Kubernetes changed its main repository from k8s.gcr.io to registry.k8s.io, meaning you should update your manifests as...
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Kubernetes Hacks and Tricks – #5 Pod DNS Policy and DNS Config options
What is dnsPolicy in Pod spec, and when should we change it? By setting the dnsPolicy option in Pod spec,...
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Kubernetes Hacks and Tricks – #4 Find worker node info from Pod spec info
In access-limited clusters where you don’t have access to cluster resources, you may need worker nodes’ info like worker node...
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Kubernetes Hacks and Tricks – #3 List all downloaded images on worker nodes
Do you want to know which images are already available on your worker nodes? If yes, you need to run...
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Kubernetes Hacks and Tricks – #2 Optional ConfigMaps and Secrets in Pods
In some applications, the application configurations are set by default in the codebase (hard-coded). If you want to override them,...
![](/wp-content/uploads/2023/07/4261cd66f4572e113d473630deddd990-300x166.png)
Kubernetes Hacks and Tricks – #1 Immutable ConfigMaps and Secrets
Sometimes you want to create configs/secrets for your applications, and you want to make sure when configs/secrets got created, nobody...