funcs

Documentation

Overview

Package funcs provides the expression functions exposed by application HCL evaluation contexts.

Index

• func MakeEnvFunc() function.Function
• func Stdlib() map[string]function.Function

Functions

func MakeEnvFunc

func MakeEnvFunc() function.Function

MakeEnvFunc returns an HCL function that reads an environment variable by name and accepts an optional fallback string. The fallback is returned when the variable is unset or contains an empty value. If no fallback is provided, an unset or empty variable returns an empty string.

func Stdlib

func Stdlib() map[string]function.Function

Stdlib returns the functions available to application HCL expressions. The set includes cty's general helpers, environment lookup, and YAML encoding and decoding. Each call returns a new map that callers may modify independently.