Merge pull request #97 from bmarini/add-heroku-drain-resource

Add heroku drain resource

builtin/providers/heroku/resource_heroku_drain.go

@@ -0,0 +1,126 @@
+package heroku
+
+import (
+	"fmt"
+	"log"
+
+	"github.com/bgentry/heroku-go"
+	"github.com/hashicorp/terraform/helper/config"
+	"github.com/hashicorp/terraform/helper/diff"
+	"github.com/hashicorp/terraform/terraform"
+)
+
+func resource_heroku_drain_create(
+	s *terraform.ResourceState,
+	d *terraform.ResourceDiff,
+	meta interface{}) (*terraform.ResourceState, error) {
+	p := meta.(*ResourceProvider)
+	client := p.client
+
+	// Merge the diff into the state so that we have all the attributes
+	// properly.
+	rs := s.MergeDiff(d)
+
+	app := rs.Attributes["app"]
+	url := rs.Attributes["url"]
+
+	log.Printf("[DEBUG] Drain create configuration: %#v, %#v", app, url)
+
+	dr, err := client.LogDrainCreate(app, url)
+
+	if err != nil {
+		return s, err
+	}
+
+	rs.ID = dr.Id
+	rs.Attributes["url"] = dr.URL
+	rs.Attributes["token"] = dr.Token
+
+	log.Printf("[INFO] Drain ID: %s", rs.ID)
+
+	return rs, nil
+}
+
+func resource_heroku_drain_update(
+	s *terraform.ResourceState,
+	d *terraform.ResourceDiff,
+	meta interface{}) (*terraform.ResourceState, error) {
+
+	panic("Cannot update drain")
+
+	return nil, nil
+}
+
+func resource_heroku_drain_destroy(
+	s *terraform.ResourceState,
+	meta interface{}) error {
+	p := meta.(*ResourceProvider)
+	client := p.client
+
+	log.Printf("[INFO] Deleting drain: %s", s.ID)
+
+	// Destroy the app
+	err := client.LogDrainDelete(s.Attributes["app"], s.ID)
+
+	if err != nil {
+		return fmt.Errorf("Error deleting drain: %s", err)
+	}
+
+	return nil
+}
+
+func resource_heroku_drain_refresh(
+	s *terraform.ResourceState,
+	meta interface{}) (*terraform.ResourceState, error) {
+	p := meta.(*ResourceProvider)
+	client := p.client
+
+	drain, err := resource_heroku_drain_retrieve(s.Attributes["app"], s.ID, client)
+	if err != nil {
+		return nil, err
+	}
+
+	s.Attributes["url"] = drain.URL
+	s.Attributes["token"] = drain.Token
+
+	return s, nil
+}
+
+func resource_heroku_drain_diff(
+	s *terraform.ResourceState,
+	c *terraform.ResourceConfig,
+	meta interface{}) (*terraform.ResourceDiff, error) {
+
+	b := &diff.ResourceBuilder{
+		Attrs: map[string]diff.AttrType{
+			"url": diff.AttrTypeCreate,
+			"app": diff.AttrTypeCreate,
+		},
+
+		ComputedAttrs: []string{
+			"token",
+		},
+	}
+
+	return b.Diff(s, c)
+}
+
+func resource_heroku_drain_retrieve(app string, id string, client *heroku.Client) (*heroku.LogDrain, error) {
+	drain, err := client.LogDrainInfo(app, id)
+
+	if err != nil {
+		return nil, fmt.Errorf("Error retrieving drain: %s", err)
+	}
+
+	return drain, nil
+}
+
+func resource_heroku_drain_validation() *config.Validator {
+	return &config.Validator{
+		Required: []string{
+			"url",
+			"app",
+		},
+		Optional: []string{},
+	}
+}

builtin/providers/heroku/resource_heroku_drain_test.go

@@ -0,0 +1,104 @@
+package heroku
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/bgentry/heroku-go"
+	"github.com/hashicorp/terraform/helper/resource"
+	"github.com/hashicorp/terraform/terraform"
+)
+
+func TestAccHerokuDrain_Basic(t *testing.T) {
+	var drain heroku.LogDrain
+
+	resource.Test(t, resource.TestCase{
+		PreCheck:     func() { testAccPreCheck(t) },
+		Providers:    testAccProviders,
+		CheckDestroy: testAccCheckHerokuDrainDestroy,
+		Steps: []resource.TestStep{
+			resource.TestStep{
+				Config: testAccCheckHerokuDrainConfig_basic,
+				Check: resource.ComposeTestCheckFunc(
+					testAccCheckHerokuDrainExists("heroku_drain.foobar", &drain),
+					testAccCheckHerokuDrainAttributes(&drain),
+					resource.TestCheckResourceAttr(
+						"heroku_drain.foobar", "url", "syslog://terraform.example.com:1234"),
+					resource.TestCheckResourceAttr(
+						"heroku_drain.foobar", "app", "terraform-test-app"),
+					resource.TestCheckResourceAttr(
+						"heroku_drain.foobar", "token", "foo-bar-baz-qux"),
+				),
+			},
+		},
+	})
+}
+
+func testAccCheckHerokuDrainDestroy(s *terraform.State) error {
+	client := testAccProvider.client
+
+	for _, rs := range s.Resources {
+		if rs.Type != "heroku_drain" {
+			continue
+		}
+
+		_, err := client.LogDrainInfo(rs.Attributes["app"], rs.ID)
+
+		if err == nil {
+			return fmt.Errorf("Drain still exists")
+		}
+	}
+
+	return nil
+}
+
+func testAccCheckHerokuDrainAttributes(Drain *heroku.LogDrain) resource.TestCheckFunc {
+	return func(s *terraform.State) error {
+
+		if Drain.URL != "syslog://terraform.example.com:1234" {
+			return fmt.Errorf("Bad URL: %s", Drain.URL)
+		}
+
+		return nil
+	}
+}
+
+func testAccCheckHerokuDrainExists(n string, Drain *heroku.LogDrain) resource.TestCheckFunc {
+	return func(s *terraform.State) error {
+		rs, ok := s.Resources[n]
+
+		if !ok {
+			return fmt.Errorf("Not found: %s", n)
+		}
+
+		if rs.ID == "" {
+			return fmt.Errorf("No Drain ID is set")
+		}
+
+		client := testAccProvider.client
+
+		foundDrain, err := client.LogDrainInfo(rs.Attributes["app"], rs.ID)
+
+		if err != nil {
+			return err
+		}
+
+		if foundDrain.Id != rs.ID {
+			return fmt.Errorf("Drain not found")
+		}
+
+		*Drain = *foundDrain
+
+		return nil
+	}
+}
+
+const testAccCheckHerokuDrainConfig_basic = `
+resource "heroku_app" "foobar" {
+    name = "terraform-test-app"
+}
+
+resource "heroku_drain" "foobar" {
+    app = "${heroku_app.foobar.name}"
+    url = "syslog://terraform.example.com:1234"
+}`

builtin/providers/heroku/resources.go

@@ -36,6 +36,14 @@ func init() {
 				Diff:            resource_heroku_domain_diff,
 				Refresh:         resource_heroku_domain_refresh,
 			},
+
+			"heroku_drain": resource.Resource{
+				ConfigValidator: resource_heroku_drain_validation(),
+				Create:          resource_heroku_drain_create,
+				Destroy:         resource_heroku_drain_destroy,
+				Diff:            resource_heroku_drain_diff,
+				Refresh:         resource_heroku_drain_refresh,
+			},
 		},
 	}
 }