diff --git a/jsonnet/data_source_jsonnet_template.go b/jsonnet/data_source_jsonnet_template.go
index ca8a121..330f270 100644
--- a/jsonnet/data_source_jsonnet_template.go
+++ b/jsonnet/data_source_jsonnet_template.go
@@ -25,6 +25,38 @@ func dataSourceJsonnetTemplate() *schema.Resource {
 					Type: schema.TypeString,
 				},
 			},
+			"ext_var": {
+				Type:        schema.TypeMap,
+				Description: "A map of Jsonnet external variables, as strings",
+				Optional:    true,
+				Elem: &schema.Schema{
+					Type: schema.TypeString,
+				},
+			},
+			"ext_code": {
+				Type:        schema.TypeMap,
+				Description: "A map of Jsonnet external variables, as code",
+				Optional:    true,
+				Elem: &schema.Schema{
+					Type: schema.TypeString,
+				},
+			},
+			"tla_var": {
+				Type:        schema.TypeMap,
+				Description: "A map of Jsonnet top-level arguments, as strings",
+				Optional:    true,
+				Elem: &schema.Schema{
+					Type: schema.TypeString,
+				},
+			},
+			"tla_code": {
+				Type:        schema.TypeMap,
+				Description: "A map of Jsonnet top-level arguments, as code",
+				Optional:    true,
+				Elem: &schema.Schema{
+					Type: schema.TypeString,
+				},
+			},
 			"json": {
 				Type:        schema.TypeString,
 				Description: "The JSON output",
@@ -42,6 +74,30 @@ func dataSourceJsonnetTemplateRead(d *schema.ResourceData, _ interface{}) error
 		vm.Importer(&importer)
 	}
 
+	if extVar := d.Get("ext_var").(map[string]interface{}); extVar != nil {
+		for key, val := range extVar {
+			vm.ExtVar(key, val.(string))
+		}
+	}
+
+	if extCode := d.Get("ext_code").(map[string]interface{}); extCode != nil {
+		for key, val := range extCode {
+			vm.ExtCode(key, val.(string))
+		}
+	}
+
+	if tlaVar := d.Get("tla_var").(map[string]interface{}); tlaVar != nil {
+		for key, val := range tlaVar {
+			vm.TLAVar(key, val.(string))
+		}
+	}
+
+	if tlaCode := d.Get("tla_code").(map[string]interface{}); tlaCode != nil {
+		for key, val := range tlaCode {
+			vm.TLACode(key, val.(string))
+		}
+	}
+
 	json, err := vm.EvaluateSnippet("input", d.Get("jsonnet").(string))
 	if err != nil {
 		return err
diff --git a/jsonnet/data_source_jsonnet_template_test.go b/jsonnet/data_source_jsonnet_template_test.go
index 1927a89..9b5d5ff 100644
--- a/jsonnet/data_source_jsonnet_template_test.go
+++ b/jsonnet/data_source_jsonnet_template_test.go
@@ -33,6 +33,38 @@ func TestAccJsonnet_jpath(t *testing.T) {
 	})
 }
 
+func TestAccJsonnet_ext(t *testing.T) {
+	resource.Test(t, resource.TestCase{
+		Providers: testAccProviders,
+		Steps: []resource.TestStep{
+			{
+				Config: testAccJsonnetTemplate_ext_var,
+				Check:  testCheckResourceJsonAttr("data.jsonnet_template.test", "json", `{"result": "test"}`),
+			},
+			{
+				Config: testAccJsonnetTemplate_ext_code,
+				Check:  testCheckResourceJsonAttr("data.jsonnet_template.test", "json", `{"result": "test"}`),
+			},
+		},
+	})
+}
+
+func TestAccJsonnet_tla(t *testing.T) {
+	resource.Test(t, resource.TestCase{
+		Providers: testAccProviders,
+		Steps: []resource.TestStep{
+			{
+				Config: testAccJsonnetTemplate_tla_var,
+				Check:  testCheckResourceJsonAttr("data.jsonnet_template.test", "json", `{"result": "test"}`),
+			},
+			{
+				Config: testAccJsonnetTemplate_tla_code,
+				Check:  testCheckResourceJsonAttr("data.jsonnet_template.test", "json", `{"result": "test"}`),
+			},
+		},
+	})
+}
+
 func testCheckResourceJsonAttr(name, key, value string) resource.TestCheckFunc {
 	return func(s *terraform.State) error {
 		actual := s.RootModule().Resources[name].Primary.Attributes[key]
@@ -81,3 +113,51 @@ data "jsonnet_template" "test" {
   jpath = ["test-fixtures"]
 }
 `
+
+var testAccJsonnetTemplate_ext_var = `
+data "jsonnet_template" "test" {
+  jsonnet = <<-EOF
+  { result: std.extVar('result') }
+  EOF
+  ext_var = {
+	result = "test"
+  }
+}
+`
+
+var testAccJsonnetTemplate_ext_code = `
+data "jsonnet_template" "test" {
+  jsonnet = <<-EOF
+  { result: std.extVar('result') }
+  EOF
+  ext_code = {
+	result = "'test'"
+  }
+}
+`
+
+var testAccJsonnetTemplate_tla_var = `
+data "jsonnet_template" "test" {
+  jsonnet = <<-EOF
+  function(result) {
+	result: result
+  }
+  EOF
+  tla_var = {
+	result = "test"
+  }
+}
+`
+
+var testAccJsonnetTemplate_tla_code = `
+data "jsonnet_template" "test" {
+  jsonnet = <<-EOF
+  function(result) {
+	result: result
+  }
+  EOF
+  tla_code = {
+	result = "'test'"
+  }
+}
+`