Practical Helm Chart Development and Best Practices

1 days
HelmChat - Version:1
Description
Helm simplifies the process of creating, packaging, configuring, and deploying Kubernetes applications by bundling configuration files into a single, reusable package. Essentially, Helm acts as a package manager for Kubernetes, streamlining workflows for developers working with microservices. By automating these tasks, Helm ensures more consistent, repeatable, and reliable deployments. In this article, we’ll explore how Helm works, its use cases, and how to determine if it’s the right solution for your Kubernetes projects.
Intended audience
DevOps arcitectes, DevOps engineers, Developers
▼Expand All

  • Introduction to Helm

    • Overview of Helm
      • What is Helm?
      • Benefits of using Helm in Kubernetes
      • Helm Architecture (Helm CLI, Charts, Releases, Repositories)
    • Helm vs. plain Kubernetes manifests

  • Creating a Basic Helm Chart
    • Structure of a Helm chart (Chart.yaml, values.yaml, templates/)
    • Writing basic templates for Kubernetes resources (Deployment, Service)
    • Packaging and installing the chart
    • Exploring the release in the Kubernetes cluster

  • Advanced Helm Chart Features

    • Exploring Helm values and template functions
      • Using values.yaml for customization
      • Conditional and loop structures in templates
      • Common Helm template functions (include, required, lookup, etc.)

    • Chart dependencies and sub-charts
      • Managing dependencies in requirements.yaml
      • Best practices for structuring sub-charts

  • Advanced Helm Chart Customization

    • Implementing advanced features in a Helm chart:
      • Adding configuration for multiple environments
      • Managing secrets and sensitive data
      • Creating reusable templates
    • Deploying and testing the chart with customized values

  • Helm Chart Best Practices

    • Helm chart versioning and repository management
      • Semantic versioning for Helm charts
      • Publishing charts to a Helm repository

    • Best practices for maintaining Helm charts
      • Keeping charts DRY (Don't Repeat Yourself)
      • Writing clean and maintainable templates
      • Security considerations (managing secrets, validating inputs)
      • Testing Helm charts (linting, unit testing, and CI/CD integration)

  • Implementing Best Practices

    • Refactoring an existing chart to follow best practices
      • Adding linting and basic testing to a chart
      • Improving the structure and readability of templates
      • Securing sensitive values using Helm best practices
    • Deploying the refactored chart and verifying improvements

  • Troubleshooting and Debugging Helm Charts

    • Common issues with Helm charts and how to troubleshoot them
      • Debugging template errors
      • Handling failed deployments
      • Upgrading and rolling back releases

    • Hands-on debugging session
      • Participants troubleshoot pre-prepared faulty charts
      • Discussing solutions and prevention strategies
Contact Us
03-6176666
03-6176677 info@sela.co.il

SEND