tools: delete dns-updater

The code has moved to https://git.fcuny.net/dns-updater/

1 files changed, 0 insertions, 126 deletions

diff --git a/tools/dnsupdate/main.go b/tools/dnsupdate/main.go
deleted file mode 100644
index 6748ee9..0000000
--- a/tools/dnsupdate/main.go
+++ /dev/null
@@ -1,126 +0,0 @@
-package main
-
-import (
-	"context"
-	"fmt"
-	"log"
-
-	dns "google.golang.org/api/dns/v1"
-)
-
-const (
-	GCP_PROJECT_NAME = "fcuny-homelab"
-	GCP_MANAGED_ZONE = "fcuny-xyz"
-	TS_DEVICE_NAME   = "tahoe"
-	TTL              = 300
-)
-
-var desiredRecords = []string{
-	"bt",
-	"cs",
-	"dash",
-	"drone",
-	"music",
-	"unifi",
-}
-
-func main() {
-	ctx := context.Background()
-
-	// we only care about IPv4 for now
-	tsIpV4Addresses, _, err := getTsIpsDevice(ctx, TS_DEVICE_NAME)
-	if err != nil {
-		log.Fatalf("failed to get the IP addresses for %s: %v", TS_DEVICE_NAME, err)
-	}
-
-	svc, err := dns.NewService(ctx)
-	if err != nil {
-		log.Fatalf("failed to create the client for Google Cloud DNS: %v", err)
-	}
-
-	zone, err := svc.ManagedZones.Get(GCP_PROJECT_NAME, GCP_MANAGED_ZONE).Context(ctx).Do()
-	if err != nil {
-		log.Fatalf("failed to get information about the managed zone %s: %+v", GCP_MANAGED_ZONE, err)
-	}
-
-	recordSets, err := svc.ResourceRecordSets.List(GCP_PROJECT_NAME, GCP_MANAGED_ZONE).Context(ctx).Do()
-	if err != nil {
-		log.Fatalf("failed to get the list of records: %+v", err)
-	}
-
-	var (
-		existingRecordSets = []*dns.ResourceRecordSet{}
-		recordSetsToAdd    = []*dns.ResourceRecordSet{}
-		recordSetsToDelete = []*dns.ResourceRecordSet{}
-	)
-
-	for _, record := range recordSets.Rrsets {
-		if record.Type == "A" {
-			existingRecordSets = append(existingRecordSets, record)
-		}
-	}
-
-	// first pass: create what's missing
-	for _, subdomain := range desiredRecords {
-		found := false
-		subdomain = fmt.Sprintf("%s.%s", subdomain, zone.DnsName)
-		for _, r := range existingRecordSets {
-			if subdomain == r.Name && r.Type == "A" {
-				// check that the IP addresses are correct
-				ipsFound := 0
-				for _, rr := range r.Rrdatas {
-					for _, ip := range tsIpV4Addresses {
-						if rr == ip {
-							ipsFound += 1
-							continue
-						}
-					}
-				}
-				// while we found the subdomain with the correct type,
-				// we also need to make sure the list of IPs is
-				// correct. If they are not, we delete the record and
-				// add it again with the correct values.
-				if ipsFound == len(tsIpV4Addresses) {
-					found = true
-					continue
-				} else {
-					log.Printf("will delete %s (incorrect IPv4 addresses)\n", subdomain)
-					recordSetsToDelete = append(recordSetsToDelete, r)
-				}
-			}
-		}
-		if !found {
-			log.Printf("will add %s\n", subdomain)
-			r := &dns.ResourceRecordSet{
-				Name:    subdomain,
-				Type:    "A",
-				Ttl:     TTL,
-				Rrdatas: tsIpV4Addresses,
-			}
-			recordSetsToAdd = append(recordSetsToAdd, r)
-		}
-	}
-
-	// second pass: delete what's not needed
-	for _, r := range existingRecordSets {
-		found := false
-		for _, subdomain := range desiredRecords {
-			subdomain = fmt.Sprintf("%s.%s", subdomain, zone.DnsName)
-			if subdomain == r.Name && r.Type == "A" {
-				found = true
-				continue
-			}
-		}
-		if !found {
-			log.Printf("will delete %s\n", r.Name)
-			recordSetsToDelete = append(recordSetsToDelete, r)
-		}
-	}
-
-	if len(recordSetsToAdd) > 0 || len(recordSetsToDelete) > 0 {
-		change := &dns.Change{Additions: recordSetsToAdd, Deletions: recordSetsToDelete}
-		if _, err = svc.Changes.Create(GCP_PROJECT_NAME, GCP_MANAGED_ZONE, change).Context(ctx).Do(); err != nil {
-			log.Fatalf("failed to apply the change: %+v", err)
-		}
-	}
-}