Dover India Azure DevOps Engineer Interview Questions, Process, and Tips

CI/CD process is a software development practice that involves continuous integration and continuous delivery/deployment.

• Continuous Integration (CI) involves automatically building and testing code changes frequently.

• Continuous Delivery (CD) involves automatically deploying code changes to production-like environments for testing.

• Continuous Deployment (CD) involves automatically deploying code changes to production.

• CI/...read more

Pods may get restarted automatically due to various reasons such as resource constraints, failures, or updates.

• Resource constraints like memory or CPU limits being exceeded can trigger a pod restart.

• Pods may be restarted if they fail health checks defined in the readiness or liveness probes.

• Updating the pod's image or configuration can also lead to automatic restarts.

Common errors encountered in Kubernetes

• Pod errors (CrashLoopBackOff, ImagePullBackOff)

• Node errors (NodeNotReady, NodeOutOfDisk)

• Service errors (ServiceUnavailable, EndpointsNotFound)

• PersistentVolume errors (VolumeNotFound, VolumeInUse)

• Network errors (NetworkPluginNotReady, DNSResolutionFailed)

To ensure Kubernetes cluster is up and running, monitoring tools, automated alerts, and regular health checks are essential.

• Set up monitoring tools like Prometheus and Grafana to track cluster health and performance metrics

• Implement automated alerts to notify of any issues or failures in the cluster

• Perform regular health checks using tools like kubectl commands or Kubernetes dashboard

• Utilize Kubernetes self-healing cap...read more

Key Vault is a secure storage service for managing sensitive information such as keys, secrets, and certificates.

• Securely store and manage cryptographic keys, secrets, and certificates

• Control access to keys, secrets, and certificates using RBAC

• Integrate with Azure services and custom applications for secure access to sensitive information