feat(root-zone): handle dns root zone with alias (#17)

Author: philibea

.github/workflows/main.yaml

@@ -53,9 +53,8 @@ jobs:
           scw_secret_key: ${{ secrets.SECRET_KEY }}
           scw_containers_namespace_id: ae28eaf1-3b94-4660-bce0-9b0e0a5d1062
           scw_registry: rg.fr-par.scw.cloud/aphilibeaux/scaleway-form:latest
-          scw_container_port: "80"
           scw_dns: containers.philibeaux.fr
-          scw_dns_prefix: testing-github
+          root_zone: true
 
       - name: check output 
         shell: bash
@@ -104,7 +103,7 @@ jobs:
           scw_containers_namespace_id: ae28eaf1-3b94-4660-bce0-9b0e0a5d1062
           scw_registry: rg.fr-par.scw.cloud/aphilibeaux/scaleway-form:latest
           scw_dns: containers.philibeaux.fr
-          scw_dns_prefix: testing-github
+          root_zone: true
 
       - name: check output 
         shell: bash

action.yaml

@@ -29,8 +29,12 @@ inputs:
     description: "DNS name where your container will be available"
     required: false
   scw_dns_prefix:
-    description: "DNS name where your container will be available"
+    description: "This will override prefix of your dns. if it's not set thane name of the containers ( max 34 char actually) will be set"
+    required: false
+  root_zone:
+    description: "This will add ALIAS on your root zone. Actually CNAME is used for all `¨scw_dns_prefix.scw_dns` of your dns"
     required: false
+    default: "false"
 
   # scw_debug:
   #   description: "debug log api call"
@@ -60,6 +64,7 @@ runs:
     - ${{ inputs.scw_memory_limit }}
     - ${{ inputs.scw_dns }}
     - ${{ inputs.scw_dns_prefix }}
+    - ${{ inputs.root_zone }}
     # - ${{ inputs.scw_debug }}
 branding:
   icon: "cloud-lightning"

dns.go

@@ -16,7 +16,8 @@ const (
 )
 
 const (
-	TYPE = "CNAME"
+	CNAME = "CNAME"
+	ALIAS = "ALIAS"
 )
 
 var (
@@ -73,22 +74,39 @@ func DeleteDNSRecord(
 ) (*domain.UpdateDNSZoneRecordsResponse, error) {
 	fmt.Println("Update Zone DNS - Delete")
 
+	// ENV
+	Prefix := os.Getenv(EnvDNSPrefix)
+	RootZone := os.Getenv(EnvRootZone)
+
 	api := domain.NewAPI(client)
 
 	Data := Container.DomainName + "."
 
-	Prefix := os.Getenv(EnvDNSPrefix)
-
 	var Name string = Container.Name
+	var Type domain.RecordType = CNAME
+
+	// Handle Prefix DNS
 
 	if Prefix != "" {
 		Name = Prefix
+
+		fmt.Println("Update With Prefix Zone DNS - Delete", Prefix)
+	}
+
+	// Handle Root Zone Alias
+	// Some DNS doesn't handle correctly CNAME on Root Zone.
+	// We should use an Alias
+
+	if RootZone == "true" {
+		Name = ""
+		Type = ALIAS
+		fmt.Println("Update Root Zone DNS - Delete")
 	}
 
 	IDFields := &domain.RecordIdentifier{
 		Name: Name,
 		Data: &Data,
-		Type: TYPE,
+		Type: Type,
 		TTL:  &TTL,
 	}
 
@@ -120,22 +138,42 @@ func AddDNSRecord(
 	DNSZone string,
 ) (string, error) {
 
+	// ENV
+	Prefix := os.Getenv(EnvDNSPrefix)
+	RootZone := os.Getenv(EnvRootZone)
+
 	fmt.Println("Update Zone DNS - Add")
 
 	api := domain.NewAPI(client)
 
-	Prefix := os.Getenv(EnvDNSPrefix)
-
 	var Name string = Container.Name
+	var Type domain.RecordType = CNAME
+
+	// Handle Prefix DNS
 
 	if Prefix != "" {
 		Name = Prefix
+
+		fmt.Println("Update With Prefix Zone DNS - Add", Prefix)
+	}
+
+	var Hostname string = Name + "." + DNSZone
+
+	// Handle Root Zone Alias
+	// Some DNS doesn't handle correctly CNAME on Root Zone.
+	// We should use an Alias
+
+	if RootZone == "true" {
+		Name = ""
+		Type = ALIAS
+		Hostname = DNSZone
+		fmt.Println("Update Root Zone DNS - Add")
 	}
 
 	Records := []*domain.Record{
 		{
 			Name: Name,
-			Type: TYPE,
+			Type: Type,
 			TTL:  TTL,
 			Data: Container.DomainName + ".",
 		},
@@ -159,7 +197,7 @@ func AddDNSRecord(
 		return "", err
 	}
 
-	Hostname := Name + "." + DNSZone
+	fmt.Println("Hostname", Hostname)
 
 	return Hostname, nil
 }

main.go

@@ -20,6 +20,7 @@ const (
 	EnvProjectID            = "INPUT_SCW_PROJECT_ID"
 	EnvSecretKey            = "INPUT_SCW_SECRET_KEY"
 	EnvMemoryLimit          = "INPUT_SCW_MEMORY_LIMIT"
+	EnvRootZone             = "INPUT_ROOT_ZONE"
 )
 
 var (