Welcome again to the Kubernetes Mastery Collection! On this fourth half, we’ll dive into the world of stateful purposes and discover how Kubernetes will help you handle them successfully.
Earlier than we start, guarantee you’ve gotten your Kubernetes cluster up and working. If you happen to’ve been following together with the sequence, your KinD cluster ought to already be arrange.
StatefulSets and Persistent Volumes
1. Create a StatefulSet
# Create a StatefulSet for a stateful utility
kubectl apply -f statefulset.yaml
2. Listing StatefulSets
# Listing all StatefulSets in a namespace
kubectl get statefulsets -n <namespace>
3. Describe a StatefulSet
# Describe a StatefulSet by identify
kubectl describe statefulset <statefulset-name>
4. Scale StatefulSets
# Scale a StatefulSet to a desired variety of replicas
kubectl scale statefulset <statefulset-name> --replicas=<desired-replicas>
5. Create a Persistent Quantity (PV)
# Create a Persistent Quantity for stateful knowledge
kubectl apply -f pv.yaml
6. Create a Persistent Quantity Declare (PVC)
# Create a Persistent Quantity Declare for stateful knowledge
kubectl apply -f pvc.yaml
Stateful Software Deployment
7. Deploy a Stateful Software
# Deploy a stateful utility utilizing the StatefulSet
kubectl apply -f stateful-application.yaml
8. Confirm Stateful Software Pods
# Listing pods for the stateful utility
kubectl get pods -n <namespace>
9. Entry Stateful Software
# Entry the stateful utility's providers
# Use the service identify and port to attach
Cleanup
10. Clear Up Sources
# Clear up the StatefulSet, PVC, and PV
kubectl delete statefulset <statefulset-name>
kubectl delete pvc <pvc-name>
kubectl delete pv <pv-name>
Stateful purposes usually require steady community identities and knowledge persistence. Kubernetes StatefulSets and Persistent Volumes present the instruments wanted to handle these purposes successfully.
Keep tuned for the subsequent half in our Kubernetes Mastery Collection:
Half 5 – Superior Deployment Methods
