hcl.go

package main

import (
	"fmt"

	"github.com/hashicorp/hcl"
)

func main() {
	type Template struct {
		Source string
		Target string
	}

	type Config struct {
		Template []Template
	}

	var config Config
	var dynamicConfig interface{}

	data := `
	template {
		source = "bloop"
		target = "bloop"
	}
	template {
		source = "bleep"
		target = "bleep"
	}
	`

	hcl.Decode(&config, data)
	hcl.Decode(&dynamicConfig, data)

	fmt.Println(config)
	fmt.Println(dynamicConfig)
}

out.sh

$ go run hcl/main.go
{[{bloop } { bloop} {bleep } { bleep}]}
map[template:[map[source:bloop target:bloop] map[source:bleep target:bleep]]]