Add cloud_init argument to image creation

.web-docs/components/builder/linode/README.md

@@ -97,6 +97,8 @@ can also be supplied to override the typical auto-generated key:
   Please note that when you create a new Linode instance with a private image, you will
   be required to setup a new root password.
 
+- `cloud_init` (bool) - Whether the newly created image supports cloud-init.
+
 #### Interface
 
 This section outlines the fields configurable for a single interface object.

builder/linode/builder_acc_test.go

@@ -38,8 +38,9 @@ const testBuilderAccBasic = `
 		"type": "linode",
 		"region": "us-ord",
 		"instance_type": "g6-nanode-1",
-		"image": "linode/alpine3.9",
-		"ssh_username": "root"
+		"image": "linode/debian11",
+		"ssh_username": "root",
+		"cloud_init": true
 	}]
 }
 `

builder/linode/builder_test.go

@@ -15,7 +15,7 @@ func testConfig() map[string]interface{} {
 		"region":        "us-ord",
 		"instance_type": "g6-nanode-1",
 		"ssh_username":  "root",
-		"image":         "linode/debian12",
+		"image":         "linode/debian11",
 	}
 }
 
@@ -509,3 +509,41 @@ func TestBuilderPrepare_NetworkInterfaces(t *testing.T) {
 		t.Errorf("got %v, expected %v", b.config.Interfaces, expectedInterfaces)
 	}
 }
+
+func TestBuilderPrepare_CloudInit(t *testing.T) {
+	var b Builder
+	config := testConfig()
+
+	// Test default
+	delete(config, "cloud_init")
+
+	_, warnings, err := b.Prepare(config)
+	if len(warnings) > 0 {
+		t.Fatalf("bad: %#v", warnings)
+	}
+	if err != nil {
+		t.Fatalf("should not have error; got %v", err)
+	}
+
+	if b.config.CloudInit {
+		t.Fatalf("expected default to be false; got true")
+	}
+
+	// Const to silence warnings
+	const expected = true
+
+	// Test set
+	config["cloud_init"] = expected
+	b = Builder{}
+	_, warnings, err = b.Prepare(config)
+	if len(warnings) > 0 {
+		t.Fatalf("bad: %#v", warnings)
+	}
+	if err != nil {
+		t.Fatalf("should not have error: %s", err)
+	}
+
+	if b.config.CloudInit != expected {
+		t.Errorf("found %s, expected %t", b.config.Region, expected)
+	}
+}

builder/linode/config.go

@@ -57,6 +57,7 @@ type Config struct {
 	StackScriptData    map[string]string `mapstructure:"stackscript_data"`
 	StackScriptID      int               `mapstructure:"stackscript_id"`
 	ImageCreateTimeout time.Duration     `mapstructure:"image_create_timeout" required:"false"`
+	CloudInit          bool              `mapstructure:"cloud_init" required:"false"`
 }
 
 func createRandomRootPassword() (string, error) {

builder/linode/step_create_image.go

@@ -33,6 +33,7 @@ func (s *stepCreateImage) Run(ctx context.Context, state multistep.StateBag) mul
 		DiskID:      disk.ID,
 		Label:       c.ImageLabel,
 		Description: c.Description,
+		CloudInit:   c.CloudInit,
 	})
 	if err != nil {
 		return handleError("Failed to create image", err)

docs/builders/linode.mdx

@@ -103,6 +103,8 @@ can also be supplied to override the typical auto-generated key:
   Please note that when you create a new Linode instance with a private image, you will
   be required to setup a new root password.
 
+- `cloud_init` (bool) - Whether the newly created image supports cloud-init.
+
 #### Interface
 
 This section outlines the fields configurable for a single interface object.