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Avoiding Label Selector Mismatches in Kubernetes Deployments
3 min readObjects such as Deployments and Services rely on correct label selectors to identify the Pods and other objects they manage. Mismatches between selectors and the labels actually …
The Risks of Running Kubernetes Without Monitoring and Logging
4 min readAccurate visibility into cluster utilization, application errors, and real-time performance data is essential as you scale your apps in Kubernetes. Spiking memory consumption, Pod …
The Importance of Network Policies in Securing Your Kubernetes Cluster
4 min readNetwork policies control the permissible traffic flows to Pods in your cluster. Each NetworkPolicy object targets a set of Pods and defines the IP address ranges, Kubernetes …
Why Broken Pod Affinity/Anti-Affinity Rules Can Disrupt Your Kubernetes Deployments
4 min readPod affinity and anti-affinity rules allow you to instruct Kubernetes which Node is the best match for new Pods. Rules can be conditioned on Node-level characteristics such as …
Why Not Using Liveness and Readiness Probes in Kubernetes Can Hurt Your Applications
4 min readWhen deploying applications on Kubernetes, ensuring their reliability and resilience is critical. A key aspect of achieving this is the proper use of Liveness and Readiness probes. …
Why Deploying Containers With the 'Latest' Tag is a Bad Idea
3 min readDeploying containers with the “latest” tag is a common practice, especially during the development phase. However, as you transition to production environments, relying on the …
A Deep Dive into CoreDNS with Rancher: Best Practices and Troubleshooting
8 min readIn the evolving landscape of Kubernetes, DNS plays a crucial role in ensuring smooth service discovery and communication within and outside the cluster. CoreDNS, a flexible and …
Installing MetalLB on Raspberry Pi Kubernetes Cluster
2 min readLearn how to install MetalLB on a Raspberry Pi Kubernetes cluster using Helm for load-balancing services. This guide provides a detailed step-by-step process.