# Helm & Kubernetes (DevOps)

> Helm charts, values, templates, releases, repositories, chart development, troubleshooting helm deployments

- 20 interview questions
- Mid-Level
- [Interview Questions: DevOps](https://sharpskill.dev/en/technologies/devops/interview-questions.md)

## 1. What is a Helm chart?

**Answer**

A Helm chart is a reusable package containing all the necessary files to deploy an application on Kubernetes. It groups YAML manifests, parameterizable templates, and configuration values in a standardized structure. Charts enable sharing and versioning complex applications in a consistent and reproducible manner.

## 2. What is the command to install a Helm chart?

**Answer**

The helm install command deploys a chart on the Kubernetes cluster by creating a new release. It accepts a release name and the path or reference of the chart to install. This command initializes the resources defined in the chart and deploys them according to configured values, while maintaining history for future rollbacks.

## 3. Which file contains the default configuration values of a Helm chart?

**Answer**

The values.yaml file contains all default configuration values used by the chart's templates. This file centralizes configurable parameters such as image names, replicas, resources, or ports. Users can override these values during installation with the --values or --set option to adapt the deployment to their environment.

## 17 more questions available

- What is a Helm release?
- Which command lists all installed Helm releases?

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## Other DevOps interview topics

- [Version Control & Git](https://sharpskill.dev/en/technologies/devops/interview-questions/version-control-git.md): 20 questions, Junior
- [Linux Fundamentals](https://sharpskill.dev/en/technologies/devops/interview-questions/linux-fundamentals.md): 22 questions, Junior
- [Shell Scripting & Bash](https://sharpskill.dev/en/technologies/devops/interview-questions/shell-scripting-bash.md): 20 questions, Mid-Level
- [Networking Basics](https://sharpskill.dev/en/technologies/devops/interview-questions/networking-basics.md): 22 questions, Junior
- [Docker Fundamentals](https://sharpskill.dev/en/technologies/devops/interview-questions/docker-fundamentals.md): 24 questions, Junior
- [CI/CD Fundamentals](https://sharpskill.dev/en/technologies/devops/interview-questions/ci-cd-fundamentals.md): 18 questions, Junior
- [GitHub Actions](https://sharpskill.dev/en/technologies/devops/interview-questions/github-actions.md): 22 questions, Mid-Level
- [GitLab CI/CD](https://sharpskill.dev/en/technologies/devops/interview-questions/gitlab-ci.md): 22 questions, Mid-Level
- [Jenkins](https://sharpskill.dev/en/technologies/devops/interview-questions/jenkins.md): 22 questions, Mid-Level
- [Kubernetes Basics](https://sharpskill.dev/en/technologies/devops/interview-questions/kubernetes-basics.md): 26 questions, Mid-Level
- [Kubernetes Networking](https://sharpskill.dev/en/technologies/devops/interview-questions/kubernetes-networking.md): 24 questions, Mid-Level
- [Kubernetes Advanced](https://sharpskill.dev/en/technologies/devops/interview-questions/kubernetes-advanced.md): 24 questions, Mid-Level
- [Ingress & API Gateway](https://sharpskill.dev/en/technologies/devops/interview-questions/ingress-api-gateway.md): 20 questions, Mid-Level
- [Terraform Basics](https://sharpskill.dev/en/technologies/devops/interview-questions/terraform-basics.md): 22 questions, Mid-Level
- [Terraform Advanced](https://sharpskill.dev/en/technologies/devops/interview-questions/terraform-advanced.md): 22 questions, Mid-Level
- [Ansible & Configuration Management](https://sharpskill.dev/en/technologies/devops/interview-questions/ansible-configuration.md): 20 questions, Mid-Level
- [AWS Essentials](https://sharpskill.dev/en/technologies/devops/interview-questions/aws-essentials.md): 26 questions, Mid-Level
- [Azure Fundamentals](https://sharpskill.dev/en/technologies/devops/interview-questions/azure-fundamentals.md): 22 questions, Mid-Level
- [GCP Fundamentals](https://sharpskill.dev/en/technologies/devops/interview-questions/gcp-fundamentals.md): 22 questions, Mid-Level
- [Monitoring & Prometheus](https://sharpskill.dev/en/technologies/devops/interview-questions/monitoring-prometheus.md): 22 questions, Mid-Level
- [Logging & ELK Stack](https://sharpskill.dev/en/technologies/devops/interview-questions/logging-elk.md): 20 questions, Mid-Level
- [Alerting & Incident Response](https://sharpskill.dev/en/technologies/devops/interview-questions/alerting-incident-response.md): 20 questions, Mid-Level
- [Cloud Identity & Secrets](https://sharpskill.dev/en/technologies/devops/interview-questions/cloud-identity-secrets.md): 22 questions, Mid-Level
- [CI/CD Pipeline Security](https://sharpskill.dev/en/technologies/devops/interview-questions/cicd-pipeline-security.md): 20 questions, Mid-Level
- [Runtime & Cluster Security](https://sharpskill.dev/en/technologies/devops/interview-questions/runtime-cluster-security.md): 24 questions, Senior
- [Container Supply Chain Security](https://sharpskill.dev/en/technologies/devops/interview-questions/container-supply-chain.md): 22 questions, Senior
- [Service Mesh & Istio](https://sharpskill.dev/en/technologies/devops/interview-questions/service-mesh-istio.md): 24 questions, Senior
- [GitOps & ArgoCD](https://sharpskill.dev/en/technologies/devops/interview-questions/gitops-argocd.md): 22 questions, Senior
- [Progressive Delivery](https://sharpskill.dev/en/technologies/devops/interview-questions/progressive-delivery.md): 20 questions, Senior
- [Distributed Observability](https://sharpskill.dev/en/technologies/devops/interview-questions/observability-distributed.md): 22 questions, Senior
- [Disaster Recovery & Backup](https://sharpskill.dev/en/technologies/devops/interview-questions/disaster-recovery.md): 20 questions, Senior
- [Performance Optimization](https://sharpskill.dev/en/technologies/devops/interview-questions/performance-optimization.md): 22 questions, Senior
- [Cloud Cost Optimization](https://sharpskill.dev/en/technologies/devops/interview-questions/infrastructure-cost.md): 20 questions, Senior
- [SRE Principles](https://sharpskill.dev/en/technologies/devops/interview-questions/sre-principles.md): 24 questions, Senior
- [Chaos Engineering](https://sharpskill.dev/en/technologies/devops/interview-questions/chaos-engineering.md): 20 questions, Senior
- [Platform Engineering](https://sharpskill.dev/en/technologies/devops/interview-questions/platform-engineering.md): 22 questions, Senior

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