Templating
Master the art of Helm templating with Go templates. Learn to create dynamic, reusable Kubernetes manifests with powerful templating techniques.
Prerequisites
What You Should Know Before Starting
Essential knowledge for Helm templating
- Understanding of Helm chart structure
- Basic knowledge of Go template syntax
- Experience with Kubernetes manifests
- Familiarity with YAML and JSON
Learning Topics
Template Syntax
Master Go template syntax for Helm charts
Learning Objectives:
- •Template Delimiters
- •Variables and Functions
- •Pipelines
- •Conditionals
- •Loops and Ranges
Built-in Objects
Understanding Helm template objects and context
Learning Objectives:
- •Release Object
- •Values Object
- •Chart Object
- •Template Object
- •Capabilities Object
Template Functions
Using Helm template functions for dynamic content
Learning Objectives:
- •String Functions
- •Math Functions
- •Date Functions
- •List Functions
- •Crypto Functions
Advanced Templating
Complex templating patterns and best practices
Learning Objectives:
- •Template Inheritance
- •Named Templates
- •Partial Templates
- •Template Debugging
- •Performance Optimization
Key Concepts
Template Syntax
Go template syntax for creating dynamic Kubernetes manifests.
- • {{ }} for template expressions
- • Variables and function calls
- • Pipeline operations (|)
- • Control structures (if, range)
Built-in Objects
Pre-defined objects available in Helm templates.
- • .Release - Release information
- • .Values - User-provided values
- • .Chart - Chart metadata
- • .Template - Template context
Template Functions
Built-in functions for manipulating data in templates.
- • String manipulation functions
- • Mathematical operations
- • Date and time functions
- • List and array functions
Advanced Patterns
Complex templating patterns for advanced use cases.
- • Template inheritance
- • Named templates and partials
- • Conditional rendering
- • Template debugging techniques
Common Template Patterns
Variable Substitution
Using values to customize resource names and configurations.
Conditional Logic
Creating conditional resources based on values or capabilities.
Loops and Iteration
Iterating over lists to create multiple resources dynamically.
Ready to Continue?
Master templating techniques, then see them in action with the Online Boutique demo.