Welcome again to the Kubernetes Mastery Sequence! On this fifth half, we’ll delve into superior deployment methods that may assist you to handle your functions extra successfully and preserve excessive availability.

Earlier than we start, guarantee you’ve got your Kubernetes cluster up and working. Should you’ve been following together with the sequence, your KinD cluster ought to already be arrange.

Rolling Updates and Blue-Inexperienced Deployments

1. Carry out a Rolling Replace

# Replace a Deployment with a brand new picture
kubectl set picture deployment/<deployment-name> <container-name>=<new-image>

2. Monitor the Rolling Replace Progress

# Monitor the rolling replace progress
kubectl rollout standing deployment/<deployment-name>

3. Rollback to a Earlier Model

# Rollback a deployment to a earlier revision
kubectl rollout undo deployment/<deployment-name>

4. Carry out a Blue-Inexperienced Deployment

# Create a brand new model (inexperienced) of your software
kubectl apply -f new-version.yaml

# Swap site visitors to the brand new model
kubectl apply -f blue-green-service.yaml

Canary Deployments

5. Carry out a Canary Deployment

# Deploy a brand new model of your software as a canary
kubectl apply -f canary-deployment.yaml

6. Regularly Enhance Canary Visitors

# Regularly improve site visitors to the canary deployment
kubectl apply -f canary-traffic-split.yaml

7. Monitor Canary Metrics

# Monitor metrics and consumer suggestions to determine whether or not to advertise the canary

Horizontal Pod Autoscaling

8. Allow Horizontal Pod Autoscaling

# Allow autoscaling for a Deployment
kubectl autoscale deployment/<deployment-name> --min=<min-replicas> --max=<max-replicas> --cpu-percent=<cpu-percent>

9. View Autoscaler Standing

# View the standing of the Horizontal Pod Autoscaler
kubectl get hpa

Cleanup

10. Clear Up Assets

# Clear up sources created for superior deployments
kubectl delete deployment/<deployment-name>
kubectl delete svc/<service-name>
kubectl delete hpa/<hpa-name>

These superior deployment methods assist you to handle software updates, take a look at new variations with minimal threat, and robotically regulate useful resource allocation to fulfill demand.

Keep tuned for the subsequent half in our Kubernetes Mastery Sequence:
Half 6 – Managing Configurations with Helm