예제 #1
0
func setup(t *testing.T) (packer.Ui, packer.Artifact, error) {
	// Create fake UI and Cache
	ui := packer.TestUi(t)
	cache := &packer.FileCache{CacheDir: os.TempDir()}

	// Create config for file builder
	const fileConfig = `{"builders":[{"type":"file","target":"package.txt","content":"Hello world!"}]}`
	tpl, err := template.Parse(strings.NewReader(fileConfig))
	if err != nil {
		return nil, nil, fmt.Errorf("Unable to parse setup configuration: %s", err)
	}

	// Prepare the file builder
	builder := file.Builder{}
	warnings, err := builder.Prepare(tpl.Builders["file"].Config)
	if len(warnings) > 0 {
		for _, warn := range warnings {
			return nil, nil, fmt.Errorf("Configuration warning: %s", warn)
		}
	}
	if err != nil {
		return nil, nil, fmt.Errorf("Invalid configuration: %s", err)
	}

	// Run the file builder
	artifact, err := builder.Run(ui, nil, cache)
	if err != nil {
		return nil, nil, fmt.Errorf("Failed to build artifact: %s", err)
	}

	return ui, artifact, err
}
예제 #2
0
// TestUploadDownload verifies that basic upload / download functionality works
func TestUploadDownload(t *testing.T) {
	ui := packer.TestUi(t)
	cache := &packer.FileCache{CacheDir: os.TempDir()}

	tpl, err := template.Parse(strings.NewReader(dockerBuilderConfig))
	if err != nil {
		t.Fatalf("Unable to parse config: %s", err)
	}

	if os.Getenv("PACKER_ACC") == "" {
		t.Skip("This test is only run with PACKER_ACC=1")
	}
	cmd := exec.Command("docker", "-v")
	cmd.Run()
	if !cmd.ProcessState.Success() {
		t.Error("docker command not found; please make sure docker is installed")
	}

	// Setup the builder
	builder := &Builder{}
	warnings, err := builder.Prepare(tpl.Builders["docker"].Config)
	if err != nil {
		t.Fatalf("Error preparing configuration %s", err)
	}
	if len(warnings) > 0 {
		t.Fatal("Encountered configuration warnings; aborting")
	}

	// Setup the provisioners
	upload := &file.Provisioner{}
	err = upload.Prepare(tpl.Provisioners[0].Config)
	if err != nil {
		t.Fatalf("Error preparing upload: %s", err)
	}
	download := &file.Provisioner{}
	err = download.Prepare(tpl.Provisioners[1].Config)
	if err != nil {
		t.Fatalf("Error preparing download: %s", err)
	}
	// Preemptive cleanup. Honestly I don't know why you would want to get rid
	// of my strawberry cake. It's so tasty! Do you not like cake? Are you a
	// cake-hater? Or are you keeping all the cake all for yourself? So selfish!
	defer os.Remove("my-strawberry-cake")

	// Add hooks so the provisioners run during the build
	hooks := map[string][]packer.Hook{}
	hooks[packer.HookProvision] = []packer.Hook{
		&packer.ProvisionHook{
			Provisioners: []packer.Provisioner{
				upload,
				download,
			},
		},
	}
	hook := &packer.DispatchHook{Mapping: hooks}

	// Run things
	artifact, err := builder.Run(ui, hook, cache)
	if err != nil {
		t.Fatalf("Error running build %s", err)
	}
	// Preemptive cleanup
	defer artifact.Destroy()

	// Verify that the thing we downloaded is the same thing we sent up.
	// Complain loudly if it isn't.
	inputFile, err := ioutil.ReadFile("test-fixtures/onecakes/strawberry")
	if err != nil {
		t.Fatalf("Unable to read input file: %s", err)
	}
	outputFile, err := ioutil.ReadFile("my-strawberry-cake")
	if err != nil {
		t.Fatalf("Unable to read output file: %s", err)
	}
	if sha256.Sum256(inputFile) != sha256.Sum256(outputFile) {
		t.Fatalf("Input and output files do not match\n"+
			"Input:\n%s\nOutput:\n%s\n", inputFile, outputFile)
	}
}
예제 #3
0
// TestLargeDownload verifies that files are the apporpriate size after being
// downloaded. This is to identify and fix the race condition in #2793. You may
// need to use github.com/cbednarski/rerun to verify since this problem occurs
// only intermittently.
func TestLargeDownload(t *testing.T) {
	ui := packer.TestUi(t)
	cache := &packer.FileCache{CacheDir: os.TempDir()}

	tpl, err := template.Parse(strings.NewReader(dockerLargeBuilderConfig))
	if err != nil {
		t.Fatalf("Unable to parse config: %s", err)
	}

	if os.Getenv("PACKER_ACC") == "" {
		t.Skip("This test is only run with PACKER_ACC=1")
	}
	cmd := exec.Command("docker", "-v")
	cmd.Run()
	if !cmd.ProcessState.Success() {
		t.Error("docker command not found; please make sure docker is installed")
	}

	// Setup the builder
	builder := &Builder{}
	warnings, err := builder.Prepare(tpl.Builders["docker"].Config)
	if err != nil {
		t.Fatalf("Error preparing configuration %s", err)
	}
	if len(warnings) > 0 {
		t.Fatal("Encountered configuration warnings; aborting")
	}

	// Setup the provisioners
	shell := &shell.Provisioner{}
	err = shell.Prepare(tpl.Provisioners[0].Config)
	if err != nil {
		t.Fatalf("Error preparing shell provisioner: %s", err)
	}
	downloadCupcake := &file.Provisioner{}
	err = downloadCupcake.Prepare(tpl.Provisioners[1].Config)
	if err != nil {
		t.Fatalf("Error preparing downloadCupcake: %s", err)
	}
	downloadBigcake := &file.Provisioner{}
	err = downloadBigcake.Prepare(tpl.Provisioners[2].Config)
	if err != nil {
		t.Fatalf("Error preparing downloadBigcake: %s", err)
	}

	// Preemptive cleanup.
	defer os.Remove("cupcake")
	defer os.Remove("bigcake")

	// Add hooks so the provisioners run during the build
	hooks := map[string][]packer.Hook{}
	hooks[packer.HookProvision] = []packer.Hook{
		&packer.ProvisionHook{
			Provisioners: []packer.Provisioner{
				shell,
				downloadCupcake,
				downloadBigcake,
			},
		},
	}
	hook := &packer.DispatchHook{Mapping: hooks}

	// Run things
	artifact, err := builder.Run(ui, hook, cache)
	if err != nil {
		t.Fatalf("Error running build %s", err)
	}
	// Preemptive cleanup
	defer artifact.Destroy()

	// Verify that the things we downloaded are the right size. Complain loudly
	// if they are not.
	//
	// cupcake should be 2097152 bytes
	// bigcake should be 104857600 bytes
	cupcake, err := os.Stat("cupcake")
	if err != nil {
		t.Fatalf("Unable to stat cupcake file: %s", err)
	}
	cupcakeExpected := int64(2097152)
	if cupcake.Size() != cupcakeExpected {
		t.Errorf("Expected cupcake to be %d bytes; found %d", cupcakeExpected, cupcake.Size())
	}

	bigcake, err := os.Stat("bigcake")
	if err != nil {
		t.Fatalf("Unable to stat bigcake file: %s", err)
	}
	bigcakeExpected := int64(104857600)
	if bigcake.Size() != bigcakeExpected {
		t.Errorf("Expected bigcake to be %d bytes; found %d", bigcakeExpected, bigcake.Size())
	}

	// TODO if we can, calculate a sha inside the container and compare to the
	// one we get after we pull it down. We will probably have to parse the log
	// or ui output to do this because we use /dev/urandom to create the file.

	// if sha256.Sum256(inputFile) != sha256.Sum256(outputFile) {
	// 	t.Fatalf("Input and output files do not match\n"+
	// 		"Input:\n%s\nOutput:\n%s\n", inputFile, outputFile)
	// }

}