packer-cn/fix/fixer_amazon_private_ip.go

71 lines
1.5 KiB
Go

package fix
import (
"log"
"strings"
"github.com/mitchellh/mapstructure"
)
// FixerAmazonPrivateIP is a Fixer that replaces instances of `"private_ip":
// true` with `"ssh_interface": "private_ip"`
type FixerAmazonPrivateIP struct{}
func (FixerAmazonPrivateIP) Fix(input map[string]interface{}) (map[string]interface{}, error) {
type template struct {
Builders []map[string]interface{}
}
// Decode the input into our structure, if we can
var tpl template
if err := mapstructure.Decode(input, &tpl); err != nil {
return nil, err
}
// Go through each builder and replace the enhanced_networking if we can
for _, builder := range tpl.Builders {
builderTypeRaw, ok := builder["type"]
if !ok {
continue
}
builderType, ok := builderTypeRaw.(string)
if !ok {
continue
}
if !strings.HasPrefix(builderType, "amazon-") {
continue
}
// if ssh_interface already set, do nothing
if _, ok := builder["ssh_interface"]; ok {
continue
}
privateIPi, ok := builder["ssh_private_ip"]
if !ok {
continue
}
privateIP, ok := privateIPi.(bool)
if !ok {
log.Fatalf("Wrong type for ssh_private_ip")
continue
}
delete(builder, "ssh_private_ip")
if privateIP {
builder["ssh_interface"] = "private_ip"
} else {
builder["ssh_interface"] = "public_ip"
}
}
input["builders"] = tpl.Builders
return input, nil
}
func (FixerAmazonPrivateIP) Synopsis() string {
return "Replaces `\"ssh_private_ip\": true` in amazon builders with `\"ssh_interface\": \"private_ip\"`"
}