Ejemplo n.º 1
0
// Retrieve retrieves credentials from the EC2 service.
// Error will be returned if the request fails, or unable to extract
// the desired credentials.
func (m *EC2RoleProvider) Retrieve() (credentials.Value, error) {
	if m.Client == nil {
		m.Client = ec2metadata.New(nil)
	}

	credsList, err := requestCredList(m.Client)
	if err != nil {
		return credentials.Value{}, err
	}

	if len(credsList) == 0 {
		return credentials.Value{}, awserr.New("EmptyEC2RoleList", "empty EC2 Role list", nil)
	}
	credsName := credsList[0]

	roleCreds, err := requestCred(m.Client, credsName)
	if err != nil {
		return credentials.Value{}, err
	}

	m.SetExpiration(roleCreds.Expiration, m.ExpiryWindow)

	return credentials.Value{
		AccessKeyID:     roleCreds.AccessKeyID,
		SecretAccessKey: roleCreds.SecretAccessKey,
		SessionToken:    roleCreds.Token,
	}, nil
}
Ejemplo n.º 2
0
func TestEC2RoleProviderExpiryWindowIsExpired(t *testing.T) {
	server := initTestServer("2014-12-16T01:51:37Z", false)
	defer server.Close()

	p := &ec2rolecreds.EC2RoleProvider{
		Client:       ec2metadata.New(&ec2metadata.Config{Endpoint: aws.String(server.URL + "/latest")}),
		ExpiryWindow: time.Hour * 1,
	}
	p.CurrentTime = func() time.Time {
		return time.Date(2014, 12, 15, 0, 51, 37, 0, time.UTC)
	}

	assert.True(t, p.IsExpired(), "Expect creds to be expired before retrieve.")

	_, err := p.Retrieve()
	assert.Nil(t, err, "Expect no error")

	assert.False(t, p.IsExpired(), "Expect creds to not be expired after retrieve.")

	p.CurrentTime = func() time.Time {
		return time.Date(2014, 12, 16, 0, 55, 37, 0, time.UTC)
	}

	assert.True(t, p.IsExpired(), "Expect creds to be expired.")
}
Ejemplo n.º 3
0
func TestMetadataAvailable(t *testing.T) {
	server := initTestServer(
		"/latest/meta-data/instance-id",
		"instance-id",
	)
	defer server.Close()
	c := ec2metadata.New(&ec2metadata.Config{Endpoint: aws.String(server.URL + "/latest")})

	available := c.Available()

	assert.True(t, available)
}
Ejemplo n.º 4
0
func TestEndpoint(t *testing.T) {
	c := ec2metadata.New(&ec2metadata.Config{})
	op := &request.Operation{
		Name:       "GetMetadata",
		HTTPMethod: "GET",
		HTTPPath:   path.Join("/", "meta-data", "testpath"),
	}

	req := c.Service.NewRequest(op, nil, nil)
	assert.Equal(t, "http://169.254.169.254/latest", req.Service.Endpoint)
	assert.Equal(t, "http://169.254.169.254/latest/meta-data/testpath", req.HTTPRequest.URL.String())
}
Ejemplo n.º 5
0
func TestGetRegion(t *testing.T) {
	server := initTestServer(
		"/latest/meta-data/placement/availability-zone",
		"us-west-2a", // real response includes suffix
	)
	defer server.Close()
	c := ec2metadata.New(&ec2metadata.Config{Endpoint: aws.String(server.URL + "/latest")})

	region, err := c.Region()

	assert.NoError(t, err)
	assert.Equal(t, "us-west-2", region)
}
Ejemplo n.º 6
0
func TestGetMetadata(t *testing.T) {
	server := initTestServer(
		"/latest/meta-data/some/path",
		"success", // real response includes suffix
	)
	defer server.Close()
	c := ec2metadata.New(&ec2metadata.Config{Endpoint: aws.String(server.URL + "/latest")})

	resp, err := c.GetMetadata("some/path")

	assert.NoError(t, err)
	assert.Equal(t, "success", resp)
}
Ejemplo n.º 7
0
func TestEC2RoleProvider(t *testing.T) {
	server := initTestServer("2014-12-16T01:51:37Z", false)
	defer server.Close()

	p := &ec2rolecreds.EC2RoleProvider{
		Client: ec2metadata.New(&ec2metadata.Config{Endpoint: aws.String(server.URL + "/latest")}),
	}

	creds, err := p.Retrieve()
	assert.Nil(t, err, "Expect no error")

	assert.Equal(t, "accessKey", creds.AccessKeyID, "Expect access key ID to match")
	assert.Equal(t, "secret", creds.SecretAccessKey, "Expect secret access key to match")
	assert.Equal(t, "token", creds.SessionToken, "Expect session token to match")
}
Ejemplo n.º 8
0
func TestMetadataNotAvailable(t *testing.T) {
	c := ec2metadata.New(nil)
	c.Handlers.Send.Clear()
	c.Handlers.Send.PushBack(func(r *request.Request) {
		r.HTTPResponse = &http.Response{
			StatusCode: int(0),
			Status:     http.StatusText(int(0)),
			Body:       ioutil.NopCloser(bytes.NewReader([]byte{})),
		}
		r.Error = awserr.New("RequestError", "send request failed", nil)
		r.Retryable = aws.Bool(true) // network errors are retryable
	})

	available := c.Available()

	assert.False(t, available)
}
Ejemplo n.º 9
0
func TestEC2RoleProviderFailAssume(t *testing.T) {
	server := initTestServer("2014-12-16T01:51:37Z", true)
	defer server.Close()

	p := &ec2rolecreds.EC2RoleProvider{
		Client: ec2metadata.New(&ec2metadata.Config{Endpoint: aws.String(server.URL + "/latest")}),
	}

	creds, err := p.Retrieve()
	assert.Error(t, err, "Expect error")

	e := err.(awserr.Error)
	assert.Equal(t, "ErrorCode", e.Code())
	assert.Equal(t, "ErrorMsg", e.Message())
	assert.Nil(t, e.OrigErr())

	assert.Equal(t, "", creds.AccessKeyID, "Expect access key ID to match")
	assert.Equal(t, "", creds.SecretAccessKey, "Expect secret access key to match")
	assert.Equal(t, "", creds.SessionToken, "Expect session token to match")
}
Ejemplo n.º 10
0
func BenchmarkEC2RoleProvider(b *testing.B) {
	server := initTestServer("2014-12-16T01:51:37Z", false)
	defer server.Close()

	p := &ec2rolecreds.EC2RoleProvider{
		Client: ec2metadata.New(&ec2metadata.Config{Endpoint: aws.String(server.URL + "/latest")}),
	}
	_, err := p.Retrieve()
	if err != nil {
		b.Fatal(err)
	}

	b.ResetTimer()
	b.RunParallel(func(pb *testing.PB) {
		for pb.Next() {
			_, err := p.Retrieve()
			if err != nil {
				b.Fatal(err)
			}
		}
	})
}