Go - Decoding YAML read from file

devices.yaml

devices:
    - hostname: "csr1"
      platform: "cisco_iosxe"
      commands:
          - "show version"
          - "show interfaces"

    - hostname: "nxos-spine1"
      platform: "cisco_nxos"
      commands:
          - "show version"
          - "show interfaces"

    - hostname: "eos-spine1"
      platform: "arista_eos"
      commands:
          - "show version"
          - "show interfaces"

main.go

package main

import (
	"fmt"
	"os"

	"gopkg.in/yaml.v3"
)

type Device struct {
	Hostname string   `yaml:"hostname"`
	Platform string   `yaml:"platform"`
	Commands []string `yaml:"commands"`
}

type Inventory struct {
	Devices []Device `yaml:"devices"`
}

func main() {
	in, err := os.Open("devices.yaml")
	if err != nil {
		panic(err)
	}
	defer in.Close()

	d := yaml.NewDecoder(in)

	var inv Inventory
	err = d.Decode(&inv)
	if err != nil {
		panic(err)
	}

	for _, v := range inv.Devices {
		fmt.Printf("Hostname: %v\n", v.Hostname)
		fmt.Printf("Platform: %v\n", v.Platform)
		fmt.Printf("Commands: %v\n", v.Commands)
	}
}