nixfiles/iac/record.go

93 lines
2.4 KiB
Go

package iac
import (
"github.com/pulumi/pulumi/sdk/v3/go/pulumi"
cloudflare "github.com/pulumi/pulumi-cloudflare/sdk/v4/go/cloudflare"
"github.com/creasty/defaults"
"fmt"
"strings"
"crypto/md5"
"encoding/hex"
)
type DNSRecordType string
const (
A DNSRecordType = "a"
AAAA = "aaaa"
MX = "mx"
TXT = "txt"
CAA = "caa"
)
type DNSRecord struct {
Name string `default:"@" yaml:"name"`
Kind DNSRecordType `yaml:"kind"`
Value string `yaml:"value,omitempty"`
Priority int `yaml:"priority,omitempty"`
Flags string `yaml:"flags,omitempty"`
Tag string `yaml:"tag,omitempty"`
Ttl int `default:"3600" yaml:"ttl,omitempty"`
}
func (r *DNSRecord) UnmarshalYAML(unmarshal func(interface{}) error) error {
defaults.Set(r)
type plain DNSRecord
if err := unmarshal((*plain)(r)); err != nil {
return err
}
return nil
}
func (r *DNSRecord) getZone(Zone *cloudflare.Zone) (pulumi.StringOutput) {
return Zone.ID().ToStringOutput()
}
func (r *DNSRecord) getName(ZoneName string, Zone *cloudflare.Zone) (string) {
base := fmt.Sprintf("%s-%s-%s", ZoneName, r.Kind, r.Name)
hash := md5.Sum([]byte(r.Value))
hashString := hex.EncodeToString(hash[:])[:5]
suffix := ""
switch r.Kind {
case MX:
suffix = fmt.Sprintf("-%d-%s", r.Priority, hashString)
case CAA:
suffix = fmt.Sprintf("%s-%s", r.Flags, r.Tag)
case A, AAAA, TXT:
suffix = fmt.Sprintf("-%s", hashString)
}
built := base + suffix
return built
}
func (r *DNSRecord) handle(ctx *pulumi.Context, ZoneName string, zone *cloudflare.Zone) (*cloudflare.Record, error) {
var recordArgs *cloudflare.RecordArgs
switch r.Kind {
case CAA:
recordArgs = &cloudflare.RecordArgs{
ZoneId: r.getZone(zone),
Name: pulumi.String(r.Name),
Type: pulumi.String(strings.ToUpper(string(r.Kind))),
Ttl: pulumi.Int(r.Ttl),
Data: &cloudflare.RecordDataArgs{
Flags: pulumi.String(r.Flags),
Tag: pulumi.String(r.Tag),
Value: pulumi.String(r.Value),
},
}
default:
recordArgs = &cloudflare.RecordArgs{
ZoneId: r.getZone(zone),
Name: pulumi.String(r.Name),
Type: pulumi.String(strings.ToUpper(string(r.Kind))),
Ttl: pulumi.Int(r.Ttl),
Priority: pulumi.Int(r.Priority),
Value: pulumi.String(r.Value),
}
}
return cloudflare.NewRecord(ctx, r.getName(ZoneName, zone), recordArgs)
}