Function GetCloudFormationTemplate

internal/deploy/templates.go:22–48

GetCloudFormationTemplate returns the CloudFormation template content

(cfg *config.CLIConfig, customTemplatePath string)

// GetCloudFormationTemplate returns the CloudFormation template content
func GetCloudFormationTemplate(cfg *config.CLIConfig, customTemplatePath string) (string, error) {
	var templateContent string
	
	// Use custom template file if provided
	if customTemplatePath != "" {
		content, err := os.ReadFile(customTemplatePath)
		if err != nil {
			return "", fmt.Errorf("failed to read custom template file %s: %w", customTemplatePath, err)
		}
		templateContent = string(content)
	} else {
		// Use embedded template
		templateContent = embeddedTemplate
	}
	
	// Perform parameter substitution
	params := TemplateParams{
		StackName:   cfg.Deployment.StackName,
	}
	
	substitutedTemplate, err := substituteTemplateParams(templateContent, params)
	if err != nil {
		return "", fmt.Errorf("failed to substitute template parameters: %w", err)
	}
	
	return substitutedTemplate, nil
}

// substituteTemplateParams performs basic parameter substitution in the template
func substituteTemplateParams(templateContent string, params TemplateParams) (string, error) {