What is your experience with Helm?

I have experience working with Helm for creating, managing, and scaling applications in Kubernetes.

I have used Helm for:

• Packaging applications: Created custom charts for complex multi-service applications, defining dependencies, configurations, and deployment templates.
• Version control: Used chart versioning to control configuration changes and rollback to previous versions when necessary.
• Deploying applications: Used helm install and helm upgrade commands to deploy and update applications in various Kubernetes environments.
• Customization: Used Values files and command-line options to override default chart values, tailoring deployments to specific environments (development, staging, production).
• CI/CD integration: Set up CI/CD pipelines using Jenkins, GitLab CI/CD, or GitHub Actions for automated building, testing, and deploying charts.

Example commands:

# Installing a chart
helm install my-release ./my-chart

# Upgrading a release with different values
helm upgrade my-release ./my-chart -f values.yaml

# Viewing release status
helm status my-release

# Uninstalling a release
helm uninstall my-release

Chart structure example:

my-chart/
├── Chart.yaml         # Chart information
├── values.yaml        # Default values for templates
├── templates/         # Kubernetes manifests (Deployment, Service, Ingress, etc.)
│   ├── deployment.yaml
│   ├── service.yaml
│   └── _helpers.tpl   # Helper templates
└── charts/            # Dependent charts
    └── sub-chart/

I have experience working with various Helm repositories, including ChartMuseum and Artifactory. I understand the principles of the Go Templating engine used in Helm for creating dynamic manifests. I have worked with Helm hooks for executing tasks before or after deployment, such as database migrations.