Kubernetes
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Category articles "Kubernetes"
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Health Checks: Liveness and Readiness in Kubernetes
A container is running — that does not mean the application is working. There might be a deadlock, memory overflow,...
Resource Limits and Requests in Kubernetes
Without resource constraints a single "greedy" container can consume all the memory on a node and kill the other pods....
What Is Kubernetes and Why You Need It
Docker packages an application into a container. But what do you do when you have hundreds of containers, they keep...
ConfigMap and Secret: Configuration in Kubernetes
Configuration must not be baked into a Docker image. Different environments (dev, staging, production) require different values. K8s solves this...
Volumes and Persistent Storage in Kubernetes
By default, data inside a container disappears along with the container. Kubernetes provides several levels of storage abstraction — from...
Deployment and ReplicaSet in Kubernetes
A Pod is a one-shot unit. A Deployment is the mechanism that guarantees the right number of pods is always...
Pod: The Smallest Unit in Kubernetes
In Docker you run a container. In Kubernetes the smallest unit is a Pod. It is not simply a wrapper...
Services and Networking in Kubernetes
Every Pod has an IP address. But pods are mortal: they get recreated, rescheduled onto different nodes, and receive new...
Ingress: HTTP Routing in Kubernetes
You have 5 microservices, each needing external access. Creating 5 LoadBalancers is expensive and unwieldy. Ingress lets you funnel all...
Helm: The Kubernetes Package Manager
Deploying an application on K8s means writing 5–10 YAML files: Deployment, Service, Ingress, ConfigMap, Secret, HPA… and slightly different files...
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