Invite back to the Kubernetes Proficiency Series! In this 4th part, we’ll dive into the world of stateful applications and check out how Kubernetes can assist you handle them efficiently.
Prior to we start, guarantee you have your Kubernetes cluster up and running. If you have actually been following together with the series, your KinD cluster must currently be established.
StatefulSets and Consistent Volumes
1. Develop a StatefulSet
# Develop a StatefulSet for a stateful application
kubectl use -f statefulset.yaml
2. List StatefulSets
# Note all StatefulSets in a namespace
kubectl get statefulsets -n << namespace>>.
3. Explain a StatefulSet
# Explain a StatefulSet by name.
kubectl explain statefulset << statefulset-name>>.
4. Scale StatefulSets
# Scale a StatefulSet to a preferred variety of reproductions.
kubectl scale statefulset << statefulset-name> >-- reproduction=<< desired-replicas>>.
5. Develop a Consistent Volume (PV)
# Develop a Consistent Volume for stateful information.
kubectl use -f pv.yaml.
6. Develop a Consistent Volume Claim (PVC)
# Develop a Consistent Volume Claim for stateful information.
kubectl use -f pvc.yaml.
Stateful Application Release
7. Release a Stateful Application
# Release a stateful application utilizing the StatefulSet.
kubectl use -f stateful-application. yaml.
8. Confirm Stateful Application Pods
# List pods for the stateful application.
kubectl get pods -n << namespace>>.
9. Gain Access To Stateful Application
# Gain access to the stateful application's services.
# Utilize the service name and port to link.
Clean-up
10. Tidy Up Resources
# Tidy Up the StatefulSet, PVC, and PV.
kubectl erase statefulset << statefulset-name>>.
kubectl erase pvc << pvc-name>>.
kubectl erase pv << pv-name>>.
Stateful applications frequently need steady network identities and information determination. Kubernetes StatefulSets and Persistent Volumes offer the tools required to handle these applications efficiently.
Stay tuned for the next part in our Kubernetes Proficiency Series:.
Part 5 – Advanced Release Methods