envvar

func Expand ¶

func Expand(value string) string

Expand replaces ${VAR_NAME} and ${VAR_NAME:-default} placeholders with their environment variable values. If a referenced environment variable is not set:

• With default syntax ${VAR:-default}: uses the default value
• Without default ${VAR}: uses empty string and logs a warning

func ExpandBytes ¶

func ExpandBytes(data []byte) []byte

ExpandBytes expands environment variables in byte slice content. This is a convenience wrapper for expanding YAML or other file content.