buildlet: add an AWS buildlet client

This change adds an AWS buildlet client which allows us to
create EC2 instances on AWS. With this change we have also
moved a portion of the gce creation logic into a helper
function which allows multiple clients to use it. Metadata
for the instances are stored in the user data fields.

The creation of a buildlet pool and modifications to
rundocker buildlet be made in order to enable this change.

Updates golang/go#36841

Change-Id: Ice03e1520513d51a02b9d66542e00012453bf0d9
Reviewed-on: https://go-review.googlesource.com/c/build/+/232077
Run-TryBot: Carlos Amedee <carlos@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alexander Rakoczy <alex@golang.org>
This commit is contained in:
Carlos Amedee 2020-05-04 13:13:17 -04:00
Родитель c34742b3b8
Коммит 372ecfe489
9 изменённых файлов: 1277 добавлений и 92 удалений

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@ -74,11 +74,18 @@ type Environment struct {
// other fields.
ControlZone string
// PreferredAvailabilityZone is the preffered AWS availability zone.
PreferredAvailabilityZone string
// VMZones are the GCE zones that the VMs will be deployed to. These
// GCE zones will be periodically cleaned by deleting old VMs. The zones
// should all exist within a single region.
VMZones []string
// VMAvailabilityZones are the AWS availability zones that the VMs will be deployed to.
// The availability zones should all exist within a single region.
VMAvailabilityZones []string
// StaticIP is the public, static IP address that will be attached to the
// coordinator instance. The zero value means the address will be looked
// up by name. This field is optional.
@ -151,6 +158,16 @@ func (e Environment) RandomVMZone() string {
return e.VMZones[rand.Intn(len(e.VMZones))]
}
// RandomAWSVMZone returns a randomly selected zone from the zones in
// VMAvailabilityZones. The PreferredAvailabilityZone value will be
// returned if VMAvailabilityZones is not set.
func (e Environment) RandomAWSVMZone() string {
if len(e.VMAvailabilityZones) == 0 {
return e.PreferredAvailabilityZone
}
return e.VMAvailabilityZones[rand.Intn(len(e.VMZones))]
}
// Region returns the GCE region, derived from its zone.
func (e Environment) Region() string {
return e.ControlZone[:strings.LastIndex(e.ControlZone, "-")]

241
buildlet/aws.go Normal file
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@ -0,0 +1,241 @@
// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package buildlet
import (
"context"
"encoding/json"
"errors"
"fmt"
"log"
"net"
"time"
"golang.org/x/build/buildenv"
"golang.org/x/build/dashboard"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/credentials"
"github.com/aws/aws-sdk-go/aws/request"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/ec2"
)
// AWSUserData is stored in the user data for each EC2 instance. This is
// used to store metadata about the running instance. The buildlet will retrieve
// this on EC2 instances before allowing connections from the coordinator.
type AWSUserData struct {
BuildletBinaryURL string `json:"buildlet_binary_url,omitempty"`
BuildletHostType string `json:"buildlet_host_type,omitempty"`
Metadata map[string]string `json:"metadata,omitempty"`
TLSCert string `json:"tls_cert,omitempty"`
TLSKey string `json:"tls_key,omitempty"`
TLSPassword string `json:"tls_password,omitempty"`
}
// ec2Client represents the EC2 specific calls made durring the
// lifecycle of a buildlet.
type ec2Client interface {
DescribeInstancesWithContext(context.Context, *ec2.DescribeInstancesInput, ...request.Option) (*ec2.DescribeInstancesOutput, error)
RunInstancesWithContext(context.Context, *ec2.RunInstancesInput, ...request.Option) (*ec2.Reservation, error)
TerminateInstancesWithContext(context.Context, *ec2.TerminateInstancesInput, ...request.Option) (*ec2.TerminateInstancesOutput, error)
WaitUntilInstanceExistsWithContext(context.Context, *ec2.DescribeInstancesInput, ...request.WaiterOption) error
}
// AWSClient is the client used to create and destroy buildlets on AWS.
type AWSClient struct {
client ec2Client
}
// NewAWSClient creates a new AWSClient.
func NewAWSClient(region, keyID, accessKey string) (*AWSClient, error) {
s, err := session.NewSession(&aws.Config{
Region: aws.String(region),
Credentials: credentials.NewStaticCredentials(keyID, accessKey, ""), // Token is only required for STS
})
if err != nil {
return nil, fmt.Errorf("failed to create AWS session: %v", err)
}
return &AWSClient{
client: ec2.New(s),
}, nil
}
// StartNewVM boots a new VM on EC2, waits until the client is accepting connections
// on the configured port and returns a buildlet client configured communicate with it.
func (c *AWSClient) StartNewVM(ctx context.Context, buildEnv *buildenv.Environment, hconf *dashboard.HostConfig, vmName, hostType string, opts *VMOpts) (*Client, error) {
// check required params
if opts == nil || opts.TLS.IsZero() {
return nil, errors.New("TLS keypair is not set")
}
if buildEnv == nil {
return nil, errors.New("invalid build enviornment")
}
if hconf == nil {
return nil, errors.New("invalid host configuration")
}
if vmName == "" || hostType == "" {
return nil, fmt.Errorf("invalid vmName: %q and hostType: %q", vmName, hostType)
}
// configure defaults
if opts.Description == "" {
opts.Description = fmt.Sprintf("Go Builder for %s", hostType)
}
if opts.Zone == "" {
opts.Zone = buildEnv.RandomAWSVMZone()
}
if opts.DeleteIn == 0 {
opts.DeleteIn = 30 * time.Minute
}
vmConfig := c.configureVM(buildEnv, hconf, vmName, hostType, opts)
vmID, err := c.createVM(ctx, vmConfig, opts)
if err != nil {
return nil, err
}
if err = c.WaitUntilVMExists(ctx, vmID, opts); err != nil {
return nil, err
}
vm, err := c.RetrieveVMInfo(ctx, vmID)
if err != nil {
return nil, err
}
buildletURL, ipPort, err := ec2BuildletParams(vm, opts)
if err != nil {
return nil, err
}
return buildletClient(ctx, buildletURL, ipPort, opts)
}
// createVM submits a request for the creation of a VM.
func (c *AWSClient) createVM(ctx context.Context, vmConfig *ec2.RunInstancesInput, opts *VMOpts) (string, error) {
runResult, err := c.client.RunInstancesWithContext(ctx, vmConfig)
if err != nil {
return "", fmt.Errorf("unable to create instance: %w", err)
}
condRun(opts.OnInstanceRequested)
return *runResult.Instances[0].InstanceId, nil
}
// WaitUntilVMExists submits a request which waits until an instance exists before returning.
func (c *AWSClient) WaitUntilVMExists(ctx context.Context, instID string, opts *VMOpts) error {
err := c.client.WaitUntilInstanceExistsWithContext(ctx, &ec2.DescribeInstancesInput{
InstanceIds: []*string{aws.String(instID)},
})
if err != nil {
return fmt.Errorf("failed waiting for vm instance: %w", err)
}
condRun(opts.OnInstanceCreated)
return err
}
// RetrieveVMInfo retrives the information about a VM.
func (c *AWSClient) RetrieveVMInfo(ctx context.Context, instID string) (*ec2.Instance, error) {
instances, err := c.client.DescribeInstancesWithContext(ctx, &ec2.DescribeInstancesInput{
InstanceIds: []*string{aws.String(instID)},
})
if err != nil {
return nil, fmt.Errorf("unable to retrieve instance %q information: %w", instID, err)
}
instance, err := ec2Instance(instances)
if err != nil {
return nil, fmt.Errorf("failed to read instance description: %w", err)
}
return instance, err
}
// configureVM creates a configuration for an EC2 VM instance.
func (c *AWSClient) configureVM(buildEnv *buildenv.Environment, hconf *dashboard.HostConfig, vmName, hostType string, opts *VMOpts) *ec2.RunInstancesInput {
vmConfig := &ec2.RunInstancesInput{
ImageId: aws.String(hconf.VMImage),
InstanceType: aws.String(hconf.MachineType()),
MinCount: aws.Int64(1),
MaxCount: aws.Int64(1),
Placement: &ec2.Placement{
AvailabilityZone: aws.String(opts.Zone),
},
InstanceInitiatedShutdownBehavior: aws.String("terminate"),
TagSpecifications: []*ec2.TagSpecification{
&ec2.TagSpecification{
Tags: []*ec2.Tag{
&ec2.Tag{
Key: aws.String("Name"),
Value: aws.String(vmName),
},
&ec2.Tag{
Key: aws.String("Description"),
Value: aws.String(opts.Description),
},
},
},
},
}
// add custom metadata to the user data.
ud := AWSUserData{
BuildletBinaryURL: hconf.BuildletBinaryURL(buildEnv),
BuildletHostType: hostType,
TLSCert: opts.TLS.CertPEM,
TLSKey: opts.TLS.KeyPEM,
TLSPassword: opts.TLS.Password(),
Metadata: make(map[string]string),
}
for k, v := range opts.Meta {
ud.Metadata[k] = v
}
jsonUserData, err := json.Marshal(ud)
if err != nil {
log.Printf("unable to marshal user data: %v", err)
}
return vmConfig.SetUserData(string(jsonUserData))
}
// DestroyVM submits a request to destroy a VM.
func (c *AWSClient) DestroyVM(ctx context.Context, vmID string) error {
_, err := c.client.TerminateInstancesWithContext(ctx, &ec2.TerminateInstancesInput{
InstanceIds: []*string{aws.String(vmID)},
})
if err != nil {
return fmt.Errorf("unable to destroy vm: %w", err)
}
return err
}
// ec2Instance extracts the first instance found in the the describe instances output.
func ec2Instance(dio *ec2.DescribeInstancesOutput) (*ec2.Instance, error) {
if dio == nil || dio.Reservations == nil || dio.Reservations[0].Instances == nil {
return nil, errors.New("describe instances output does not contain a valid instance")
}
return dio.Reservations[0].Instances[0], nil
}
// ec2InstanceIPs returns the internal and external ip addresses for the VM.
func ec2InstanceIPs(inst *ec2.Instance) (intIP, extIP string, err error) {
if inst.PrivateIpAddress == nil || *inst.PrivateIpAddress == "" {
return "", "", errors.New("internal IP address is not set")
}
if inst.PublicIpAddress == nil || *inst.PublicIpAddress == "" {
return "", "", errors.New("external IP address is not set")
}
return *inst.PrivateIpAddress, *inst.PublicIpAddress, nil
}
// ec2BuildletParams returns the necessary information to connect to an EC2 buildlet. A
// buildlet URL and an IP address port are required to connect to a buildlet.
func ec2BuildletParams(inst *ec2.Instance, opts *VMOpts) (string, string, error) {
_, extIP, err := ec2InstanceIPs(inst)
if err != nil {
return "", "", fmt.Errorf("failed to retrieve IP addresses: %w", err)
}
buildletURL := fmt.Sprintf("https://%s", extIP)
ipPort := net.JoinHostPort(extIP, "443")
if opts.OnGotEC2InstanceInfo != nil {
opts.OnGotEC2InstanceInfo(inst)
}
return buildletURL, ipPort, err
}

717
buildlet/aws_test.go Normal file
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@ -0,0 +1,717 @@
// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package buildlet
import (
"context"
"encoding/json"
"errors"
"testing"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/request"
"github.com/aws/aws-sdk-go/service/ec2"
"github.com/google/go-cmp/cmp"
"golang.org/x/build/buildenv"
"golang.org/x/build/dashboard"
)
type fakeEC2Client struct {
// returned in describe instances
PrivateIP *string
PublicIP *string
}
func (f *fakeEC2Client) DescribeInstancesWithContext(ctx context.Context, input *ec2.DescribeInstancesInput, opt ...request.Option) (*ec2.DescribeInstancesOutput, error) {
if ctx == nil || input == nil || len(input.InstanceIds) == 0 {
return nil, request.ErrInvalidParams{}
}
return &ec2.DescribeInstancesOutput{
Reservations: []*ec2.Reservation{
&ec2.Reservation{
Instances: []*ec2.Instance{
&ec2.Instance{
InstanceId: input.InstanceIds[0],
PrivateIpAddress: f.PrivateIP,
PublicIpAddress: f.PublicIP,
},
},
},
},
}, nil
}
func (f *fakeEC2Client) RunInstancesWithContext(ctx context.Context, input *ec2.RunInstancesInput, opts ...request.Option) (*ec2.Reservation, error) {
if ctx == nil || input == nil {
return nil, request.ErrInvalidParams{}
}
if input.ImageId == nil || input.InstanceType == nil || input.MinCount == nil || input.Placement == nil {
return nil, errors.New("invalid instance configuration")
}
return &ec2.Reservation{
Instances: []*ec2.Instance{
&ec2.Instance{
ImageId: input.ImageId,
InstanceType: input.InstanceType,
InstanceId: aws.String("44"),
Placement: input.Placement,
},
},
ReservationId: aws.String("res_id"),
}, nil
}
func (f *fakeEC2Client) TerminateInstancesWithContext(ctx context.Context, input *ec2.TerminateInstancesInput, opts ...request.Option) (*ec2.TerminateInstancesOutput, error) {
if ctx == nil || input == nil || len(input.InstanceIds) == 0 {
return nil, request.ErrInvalidParams{}
}
for _, id := range input.InstanceIds {
if *id == "" {
return nil, errors.New("invalid instance id")
}
}
return &ec2.TerminateInstancesOutput{
TerminatingInstances: nil,
}, nil
}
func (f *fakeEC2Client) WaitUntilInstanceExistsWithContext(ctx context.Context, input *ec2.DescribeInstancesInput, opt ...request.WaiterOption) error {
if ctx == nil || input == nil || len(input.InstanceIds) == 0 {
return request.ErrInvalidParams{}
}
return nil
}
func TestRetrieveVMInfo(t *testing.T) {
wantVMID := "22"
ctx := context.Background()
c := &AWSClient{
client: &fakeEC2Client{},
}
gotInst, gotErr := c.RetrieveVMInfo(ctx, wantVMID)
if gotErr != nil {
t.Fatalf("RetrieveVMInfo(%v, %q) failed with error %s", ctx, wantVMID, gotErr)
}
if gotInst == nil || *gotInst.InstanceId != wantVMID {
t.Errorf("RetrieveVMInfo(%v, %q) failed with error %s", ctx, wantVMID, gotErr)
}
}
func TestStartNewVM(t *testing.T) {
kp, err := NewKeyPair()
if err != nil {
t.Fatalf("unable to generate key pair: %s", err)
}
buildEnv := &buildenv.Environment{}
hconf := &dashboard.HostConfig{}
vmName := "sample-vm"
hostType := "host-sample-os"
opts := &VMOpts{
Zone: "us-west",
ProjectID: "project1",
TLS: kp,
Description: "Golang builder for sample",
Meta: map[string]string{
"Owner": "george",
},
DeleteIn: 45 * time.Second,
SkipEndpointVerification: true,
}
c := &AWSClient{
client: &fakeEC2Client{
PrivateIP: aws.String("8.8.8.8"),
PublicIP: aws.String("9.9.9.9"),
},
}
gotClient, gotErr := c.StartNewVM(context.Background(), buildEnv, hconf, vmName, hostType, opts)
if gotErr != nil {
t.Fatalf("error is not nil: %v", gotErr)
}
if gotClient == nil {
t.Fatalf("response is nil")
}
}
func TestStartNewVMError(t *testing.T) {
kp, err := NewKeyPair()
if err != nil {
t.Fatalf("unable to generate key pair: %s", err)
}
testCases := []struct {
desc string
buildEnv *buildenv.Environment
hconf *dashboard.HostConfig
vmName string
hostType string
opts *VMOpts
}{
{
desc: "nil-buildenv",
hconf: &dashboard.HostConfig{},
vmName: "sample-vm",
hostType: "host-sample-os",
opts: &VMOpts{
Zone: "us-west",
ProjectID: "project1",
TLS: kp,
Description: "Golang builder for sample",
Meta: map[string]string{
"Owner": "george",
},
DeleteIn: 45 * time.Second,
},
},
{
desc: "nil-hconf",
buildEnv: &buildenv.Environment{},
vmName: "sample-vm",
hostType: "host-sample-os",
opts: &VMOpts{
Zone: "us-west",
ProjectID: "project1",
TLS: kp,
Description: "Golang builder for sample",
Meta: map[string]string{
"Owner": "george",
},
DeleteIn: 45 * time.Second,
},
},
{
desc: "empty-vnName",
buildEnv: &buildenv.Environment{},
hconf: &dashboard.HostConfig{},
vmName: "",
hostType: "host-sample-os",
opts: &VMOpts{
Zone: "us-west",
ProjectID: "project1",
TLS: kp,
Description: "Golang builder for sample",
Meta: map[string]string{
"Owner": "george",
},
DeleteIn: 45 * time.Second,
},
},
{
desc: "empty-hostType",
buildEnv: &buildenv.Environment{},
hconf: &dashboard.HostConfig{},
vmName: "sample-vm",
hostType: "",
opts: &VMOpts{
Zone: "us-west",
ProjectID: "project1",
TLS: kp,
Description: "Golang builder for sample",
Meta: map[string]string{
"Owner": "george",
},
DeleteIn: 45 * time.Second,
},
},
{
desc: "missing-certs",
buildEnv: &buildenv.Environment{},
hconf: &dashboard.HostConfig{},
vmName: "sample-vm",
hostType: "host-sample-os",
opts: &VMOpts{
Zone: "us-west",
ProjectID: "project1",
Description: "Golang builder for sample",
Meta: map[string]string{
"Owner": "george",
},
DeleteIn: 45 * time.Second,
},
},
{
desc: "nil-opts",
buildEnv: &buildenv.Environment{},
hconf: &dashboard.HostConfig{},
vmName: "sample-vm",
hostType: "host-sample-os",
},
}
for _, tc := range testCases {
t.Run(tc.desc, func(t *testing.T) {
c := &AWSClient{
client: &fakeEC2Client{},
}
gotClient, gotErr := c.StartNewVM(context.Background(), tc.buildEnv, tc.hconf, tc.vmName, tc.hostType, tc.opts)
if gotErr == nil {
t.Errorf("expected error did not occur")
}
if gotClient != nil {
t.Errorf("got %+v; expected nil", gotClient)
}
})
}
}
func TestWaitUntilInstanceExists(t *testing.T) {
vmID := "22"
invoked := false
opts := &VMOpts{
OnInstanceCreated: func() {
invoked = true
},
}
ctx := context.Background()
c := &AWSClient{
client: &fakeEC2Client{},
}
gotErr := c.WaitUntilVMExists(ctx, vmID, opts)
if gotErr != nil {
t.Fatalf("WaitUntilVMExists(%v, %v, %v) failed with error %s", ctx, vmID, opts, gotErr)
}
if !invoked {
t.Errorf("OnInstanceCreated() was not invoked")
}
}
func TestCreateVM(t *testing.T) {
vmConfig := &ec2.RunInstancesInput{
ImageId: aws.String("foo"),
InstanceType: aws.String("type-a"),
MinCount: aws.Int64(15),
Placement: &ec2.Placement{
AvailabilityZone: aws.String("eu-15"),
},
}
invoked := false
opts := &VMOpts{
OnInstanceRequested: func() {
invoked = true
},
}
wantVMID := aws.String("44")
c := &AWSClient{
client: &fakeEC2Client{},
}
gotVMID, gotErr := c.createVM(context.Background(), vmConfig, opts)
if gotErr != nil {
t.Fatalf("createVM(ctx, %v, %v) failed with %s", vmConfig, opts, gotErr)
}
if gotVMID != *wantVMID {
t.Errorf("createVM(ctx, %v, %v) = %s, nil; want %s, nil", vmConfig, opts, gotVMID, *wantVMID)
}
if !invoked {
t.Errorf("OnInstanceRequested() was not invoked")
}
}
func TestCreateVMError(t *testing.T) {
testCases := []struct {
desc string
vmConfig *ec2.RunInstancesInput
opts *VMOpts
}{
{
desc: "missing-vmConfig",
},
{
desc: "missing-image-id",
vmConfig: &ec2.RunInstancesInput{
InstanceType: aws.String("type-a"),
MinCount: aws.Int64(15),
Placement: &ec2.Placement{
AvailabilityZone: aws.String("eu-15"),
},
},
opts: &VMOpts{
OnInstanceRequested: func() {},
},
},
{
desc: "missing-instance-id",
vmConfig: &ec2.RunInstancesInput{
ImageId: aws.String("foo"),
MinCount: aws.Int64(15),
Placement: &ec2.Placement{
AvailabilityZone: aws.String("eu-15"),
},
},
opts: &VMOpts{
OnInstanceRequested: func() {},
},
},
{
desc: "missing-placement",
vmConfig: &ec2.RunInstancesInput{
ImageId: aws.String("foo"),
InstanceType: aws.String("type-a"),
MinCount: aws.Int64(15),
},
opts: &VMOpts{
OnInstanceRequested: func() {},
},
},
}
for _, tc := range testCases {
t.Run(tc.desc, func(t *testing.T) {
c := &AWSClient{
client: &fakeEC2Client{},
}
gotVMID, gotErr := c.createVM(context.Background(), tc.vmConfig, tc.opts)
if gotErr == nil {
t.Errorf("createVM(ctx, %v, %v) = %s, %v; want error", tc.vmConfig, tc.opts, gotVMID, gotErr)
}
if gotVMID != "" {
t.Errorf("createVM(ctx, %v, %v) = %s, %v; %q, error", tc.vmConfig, tc.opts, gotVMID, gotErr, "")
}
})
}
}
func TestDestroyVM(t *testing.T) {
testCases := []struct {
desc string
ctx context.Context
vmID string
wantErr bool
}{
{"baseline request", context.Background(), "vm-20", false},
{"nil context", nil, "vm-20", true},
{"nil context", context.Background(), "", true},
}
for _, tc := range testCases {
t.Run(tc.desc, func(t *testing.T) {
c := &AWSClient{
client: &fakeEC2Client{},
}
gotErr := c.DestroyVM(tc.ctx, tc.vmID)
if (gotErr != nil) != tc.wantErr {
t.Errorf("DestroyVM(%v, %q) = %v; want error %t", tc.ctx, tc.vmID, gotErr, tc.wantErr)
}
})
}
}
func TestEC2BuildletParams(t *testing.T) {
testCases := []struct {
desc string
inst *ec2.Instance
opts *VMOpts
wantURL string
wantPort string
wantCalled bool
}{
{
desc: "base case",
inst: &ec2.Instance{
PrivateIpAddress: aws.String("9.9.9.9"),
PublicIpAddress: aws.String("8.8.8.8"),
},
opts: &VMOpts{},
wantCalled: true,
wantURL: "https://8.8.8.8",
wantPort: "8.8.8.8:443",
},
}
for _, tc := range testCases {
t.Run(tc.desc, func(t *testing.T) {
gotURL, gotPort, gotErr := ec2BuildletParams(tc.inst, tc.opts)
if gotErr != nil {
t.Fatalf("ec2BuildletParams(%v, %v) failed; %v", tc.inst, tc.opts, gotErr)
}
if gotURL != tc.wantURL || gotPort != tc.wantPort {
t.Errorf("ec2BuildletParams(%v, %v) = %q, %q, nil; want %q, %q, nil", tc.inst, tc.opts, gotURL, gotPort, tc.wantURL, tc.wantPort)
}
})
}
}
func TestConfigureVM(t *testing.T) {
testCases := []struct {
desc string
buildEnv *buildenv.Environment
hconf *dashboard.HostConfig
hostType string
opts *VMOpts
vmName string
wantDesc string
wantImageID string
wantInstanceType string
wantName string
wantZone string
}{
{
desc: "default-values",
buildEnv: &buildenv.Environment{},
hconf: &dashboard.HostConfig{},
vmName: "base_vm",
hostType: "host-foo-bar",
opts: &VMOpts{},
wantInstanceType: "n1-highcpu-2",
wantName: "base_vm",
},
{
desc: "full-configuration",
buildEnv: &buildenv.Environment{},
hconf: &dashboard.HostConfig{
VMImage: "awesome_image",
},
vmName: "base-vm",
hostType: "host-foo-bar",
opts: &VMOpts{
Zone: "sa-west",
TLS: KeyPair{
CertPEM: "abc",
KeyPEM: "xyz",
},
Description: "test description",
Meta: map[string]string{
"sample": "value",
},
},
wantDesc: "test description",
wantImageID: "awesome_image",
wantInstanceType: "n1-highcpu-2",
wantName: "base-vm",
wantZone: "sa-west",
},
}
for _, tc := range testCases {
t.Run(tc.desc, func(t *testing.T) {
c := &AWSClient{}
got := c.configureVM(tc.buildEnv, tc.hconf, tc.vmName, tc.hostType, tc.opts)
if *got.ImageId != tc.wantImageID {
t.Errorf("ImageId got %s; want %s", *got.ImageId, tc.wantImageID)
}
if *got.InstanceType != tc.wantInstanceType {
t.Errorf("InstanceType got %s; want %s", *got.InstanceType, tc.wantInstanceType)
}
if *got.MinCount != 1 {
t.Errorf("MinCount got %d; want %d", *got.MinCount, 1)
}
if *got.MaxCount != 1 {
t.Errorf("MaxCount got %d; want %d", *got.MaxCount, 1)
}
if *got.Placement.AvailabilityZone != tc.wantZone {
t.Errorf("AvailabilityZone got %s; want %s", *got.Placement.AvailabilityZone, tc.wantZone)
}
if *got.InstanceInitiatedShutdownBehavior != "terminate" {
t.Errorf("InstanceType got %s; want %s", *got.InstanceInitiatedShutdownBehavior, "terminate")
}
if *got.TagSpecifications[0].Tags[0].Key != "Name" {
t.Errorf("First Tag Key got %s; want %s", *got.TagSpecifications[0].Tags[0].Key, "Name")
}
if *got.TagSpecifications[0].Tags[0].Value != tc.wantName {
t.Errorf("First Tag Value got %s; want %s", *got.TagSpecifications[0].Tags[0].Value, tc.wantName)
}
if *got.TagSpecifications[0].Tags[1].Key != "Description" {
t.Errorf("Second Tag Key got %s; want %s", *got.TagSpecifications[0].Tags[1].Key, "Description")
}
if *got.TagSpecifications[0].Tags[1].Value != tc.wantDesc {
t.Errorf("Second Tag Value got %s; want %s", *got.TagSpecifications[0].Tags[1].Value, tc.wantDesc)
}
gotUD := &AWSUserData{}
err := json.Unmarshal([]byte(*got.UserData), &gotUD)
if err != nil {
t.Errorf("unable to unmarshal user data: %v", err)
}
if gotUD.BuildletBinaryURL != tc.hconf.BuildletBinaryURL(tc.buildEnv) {
t.Errorf("buildletBinaryURL got %s; want %s", gotUD.BuildletBinaryURL, tc.hconf.BuildletBinaryURL(tc.buildEnv))
}
if gotUD.BuildletHostType != tc.hostType {
t.Errorf("buildletHostType got %s; want %s", gotUD.BuildletHostType, tc.hostType)
}
if gotUD.TLSCert != tc.opts.TLS.CertPEM {
t.Errorf("TLSCert got %s; want %s", gotUD.TLSCert, tc.opts.TLS.CertPEM)
}
if gotUD.TLSKey != tc.opts.TLS.KeyPEM {
t.Errorf("TLSKey got %s; want %s", gotUD.TLSKey, tc.opts.TLS.KeyPEM)
}
if gotUD.TLSPassword != tc.opts.TLS.Password() {
t.Errorf("TLSPassword got %s; want %s", gotUD.TLSPassword, tc.opts.TLS.Password())
}
})
}
}
func TestEC2Instance(t *testing.T) {
instSample1 := &ec2.Instance{
InstanceId: aws.String("id1"),
}
instSample2 := &ec2.Instance{
InstanceId: aws.String("id2"),
}
resSample1 := &ec2.Reservation{
Instances: []*ec2.Instance{
instSample1,
},
RequesterId: aws.String("user1"),
ReservationId: aws.String("reservation12"),
}
resSample2 := &ec2.Reservation{
Instances: []*ec2.Instance{
instSample2,
},
RequesterId: aws.String("user2"),
ReservationId: aws.String("reservation22"),
}
testCases := []struct {
desc string
dio *ec2.DescribeInstancesOutput
wantInst *ec2.Instance
}{
{
desc: "single reservation",
dio: &ec2.DescribeInstancesOutput{
Reservations: []*ec2.Reservation{
resSample1,
},
},
wantInst: instSample1,
},
{
desc: "multiple reservations",
dio: &ec2.DescribeInstancesOutput{
Reservations: []*ec2.Reservation{
resSample2,
resSample1,
},
},
wantInst: instSample2,
},
}
for _, tc := range testCases {
t.Run(tc.desc, func(t *testing.T) {
gotInst, gotErr := ec2Instance(tc.dio)
if gotErr != nil {
t.Errorf("ec2Instance(%v) failed: %v",
tc.dio, gotErr)
}
if !cmp.Equal(gotInst, tc.wantInst) {
t.Errorf("ec2Instance(%v) = %s; want %s",
tc.dio, gotInst, tc.wantInst)
}
})
}
}
func TestEC2InstanceError(t *testing.T) {
testCases := []struct {
desc string
dio *ec2.DescribeInstancesOutput
}{
{
desc: "nil input",
dio: nil,
},
{
desc: "nil reservation",
dio: &ec2.DescribeInstancesOutput{
Reservations: nil,
},
},
{
desc: "nil instances",
dio: &ec2.DescribeInstancesOutput{
Reservations: []*ec2.Reservation{
&ec2.Reservation{
Instances: nil,
RequesterId: aws.String("user1"),
ReservationId: aws.String("reservation12"),
},
},
},
},
}
for _, tc := range testCases {
t.Run(tc.desc, func(t *testing.T) {
_, gotErr := ec2Instance(tc.dio)
if gotErr == nil {
t.Errorf("ec2Instance(%v) did not fail", tc.dio)
}
})
}
}
func TestEC2InstanceIPs(t *testing.T) {
testCases := []struct {
desc string
inst *ec2.Instance
wantIntIP string
wantExtIP string
}{
{
desc: "base case",
inst: &ec2.Instance{
PrivateIpAddress: aws.String("1.1.1.1"),
PublicIpAddress: aws.String("8.8.8.8"),
},
wantIntIP: "1.1.1.1",
wantExtIP: "8.8.8.8",
},
}
for _, tc := range testCases {
t.Run(tc.desc, func(t *testing.T) {
gotIntIP, gotExtIP, gotErr := ec2InstanceIPs(tc.inst)
if gotErr != nil {
t.Errorf("ec2InstanceIPs(%v) failed: %v",
tc.inst, gotErr)
}
if gotIntIP != tc.wantIntIP || gotExtIP != tc.wantExtIP {
t.Errorf("ec2InstanceIPs(%v) = %s, %s, %v; want %s, %s, nil",
tc.inst, gotIntIP, gotExtIP, gotErr, tc.wantIntIP, tc.wantExtIP)
}
})
}
}
func TestEC2InstanceIPsErrors(t *testing.T) {
testCases := []struct {
desc string
inst *ec2.Instance
}{
{
desc: "default vallues",
inst: &ec2.Instance{},
},
{
desc: "missing public ip",
inst: &ec2.Instance{
PrivateIpAddress: aws.String("1.1.1.1"),
},
},
{
desc: "missing private ip",
inst: &ec2.Instance{
PublicIpAddress: aws.String("8.8.8.8"),
},
},
{
desc: "empty public ip",
inst: &ec2.Instance{
PrivateIpAddress: aws.String("1.1.1.1"),
PublicIpAddress: aws.String(""),
},
},
{
desc: "empty private ip",
inst: &ec2.Instance{
PrivateIpAddress: aws.String(""),
PublicIpAddress: aws.String("8.8.8.8"),
},
},
}
for _, tc := range testCases {
t.Run(tc.desc, func(t *testing.T) {
_, _, gotErr := ec2InstanceIPs(tc.inst)
if gotErr == nil {
t.Errorf("ec2InstanceIPs(%v) = nil: want error", tc.inst)
}
})
}
}

141
buildlet/buildlet.go Normal file
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@ -0,0 +1,141 @@
// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package buildlet
import (
"context"
"crypto/tls"
"errors"
"fmt"
"io/ioutil"
"net/http"
"time"
"github.com/aws/aws-sdk-go/service/ec2"
"google.golang.org/api/compute/v1"
)
// VMOpts control how new VMs are started.
type VMOpts struct {
// Zone is the GCE zone to create the VM in.
// Optional; defaults to provided build environment's zone.
Zone string
// ProjectID is the GCE project ID (e.g. "foo-bar-123", not
// the numeric ID).
// Optional; defaults to provided build environment's project ID ("name").
ProjectID string
// TLS optionally specifies the TLS keypair to use.
// If zero, http without auth is used.
TLS KeyPair
// Optional description of the VM.
Description string
// Optional metadata to put on the instance.
Meta map[string]string
// DeleteIn optionally specifies a duration at which
// to delete the VM.
// If zero, a reasonable default is used.
// Negative means no deletion timeout.
DeleteIn time.Duration
// OnInstanceRequested optionally specifies a hook to run synchronously
// after the computeService.Instances.Insert call, but before
// waiting for its operation to proceed.
OnInstanceRequested func()
// OnInstanceCreated optionally specifies a hook to run synchronously
// after the instance operation succeeds.
OnInstanceCreated func()
// OnInstanceCreated optionally specifies a hook to run synchronously
// after the computeService.Instances.Get call.
// Only valid for GCE resources.
OnGotInstanceInfo func(*compute.Instance)
// OnInstanceCreated optionally specifies a hook to run synchronously
// after the EC2 instance information is retrieved.
// Only valid for EC2 resources.
OnGotEC2InstanceInfo func(*ec2.Instance)
// OnBeginBuildletProbe optionally specifies a hook to run synchronously
// before StartNewVM tries to hit buildletURL to see if it's up yet.
OnBeginBuildletProbe func(buildletURL string)
// OnEndBuildletProbe optionally specifies a hook to run synchronously
// after StartNewVM tries to hit the buildlet's URL to see if it's up.
// The hook parameters are the return values from http.Get.
OnEndBuildletProbe func(*http.Response, error)
// SkipEndpointVerification does not verify that the builder is listening
// on port 80 or 443 before creating a buildlet client.
SkipEndpointVerification bool
}
// buildletClient returns a buildlet client configured to speak to a VM via the buildlet
// URL. The communication will use TLS if one is provided in the vmopts. This will wait until
// it can connect with the endpoint before returning. The buildletURL is in the form of:
// "https://<ip>". The ipPort field is in the form of "<ip>:<port>".
func buildletClient(ctx context.Context, buildletURL, ipPort string, opts *VMOpts) (*Client, error) {
const timeout = 5 * time.Minute
deadline := time.Now().Add(timeout)
try := 0
for !opts.SkipEndpointVerification {
try++
if deadline.Before(time.Now()) {
return nil, fmt.Errorf("unable to probe buildet at %s in %v with %d attempts", buildletURL, timeout, try)
}
err := probeBuildlet(ctx, buildletURL, opts)
if errors.Is(err, context.DeadlineExceeded) || errors.Is(err, context.Canceled) {
return nil, fmt.Errorf("unable to probe buildlet at %s: %w", buildletURL, err)
}
if err != nil {
time.Sleep(time.Second)
continue
}
break
}
return NewClient(ipPort, opts.TLS), nil
}
// probeBuildlet attempts to the connect to a buildlet at the provided URL. An error
// is returned if it unable to connect to the buildlet. Each request is limited by either
// a five second limit or the timeout set in the context.
func probeBuildlet(ctx context.Context, buildletURL string, opts *VMOpts) error {
cl := &http.Client{
Transport: &http.Transport{
Dial: defaultDialer(),
DisableKeepAlives: true,
TLSClientConfig: &tls.Config{
InsecureSkipVerify: true,
},
},
}
if fn := opts.OnBeginBuildletProbe; fn != nil {
fn(buildletURL)
}
ctx, cancel := context.WithTimeout(ctx, 5*time.Second)
defer cancel()
req, err := http.NewRequestWithContext(ctx, http.MethodGet, buildletURL, nil)
if err != nil {
return fmt.Errorf("error creating buildlet probe request: %w", err)
}
res, err := cl.Do(req)
if fn := opts.OnEndBuildletProbe; fn != nil {
fn(res, err)
}
if err != nil {
return fmt.Errorf("error probe buildlet %s: %w", buildletURL, err)
}
ioutil.ReadAll(res.Body)
res.Body.Close()
if res.StatusCode != http.StatusOK {
return fmt.Errorf("buildlet returned HTTP status code %d for %s", res.StatusCode, buildletURL)
}
return nil
}

143
buildlet/buildlet_test.go Normal file
Просмотреть файл

@ -0,0 +1,143 @@
// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package buildlet
import (
"context"
"fmt"
"net/http"
"net/http/httptest"
"net/url"
"testing"
)
func TestBuildletClient(t *testing.T) {
var httpCalled, OnBeginBuildletProbeCalled, OnEndBuildletProbeCalled bool
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
httpCalled = true
fmt.Fprintln(w, "buildlet endpoint reached")
}))
defer ts.Close()
u, err := url.Parse(ts.URL)
if err != nil {
t.Fatalf("unable to parse http server url %s", err)
}
kp, err := NewKeyPair()
if err != nil {
t.Fatalf("unable to create key pair %s", err)
}
opt := &VMOpts{
TLS: kp,
OnBeginBuildletProbe: func(string) { OnBeginBuildletProbeCalled = true },
OnEndBuildletProbe: func(*http.Response, error) { OnEndBuildletProbeCalled = true },
}
gotClient, gotErr := buildletClient(context.Background(), ts.URL, u.Host, opt)
if gotErr != nil {
t.Errorf("buildletClient(ctx, %s, %s, %v) error %s", ts.URL, u.Host, opt, gotErr)
}
if gotClient == nil {
t.Errorf("client should not be nil")
}
if !httpCalled {
t.Error("http endpoint never called")
}
if !OnBeginBuildletProbeCalled {
t.Error("OnBeginBuildletProbe() was not called")
}
if !OnEndBuildletProbeCalled {
t.Error("OnEndBuildletProbe() was not called")
}
}
func TestBuildletClientError(t *testing.T) {
var httpCalled, OnBeginBuildletProbeCalled, OnEndBuildletProbeCalled bool
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
httpCalled = true
fmt.Fprintln(w, "buildlet endpoint reached")
}))
defer ts.Close()
u, err := url.Parse(ts.URL)
if err != nil {
t.Fatalf("unable to parse http server url %s", err)
}
kp, err := NewKeyPair()
if err != nil {
t.Fatalf("unable to create key pair %s", err)
}
opt := &VMOpts{
TLS: kp,
OnBeginBuildletProbe: func(string) { OnBeginBuildletProbeCalled = true },
OnEndBuildletProbe: func(*http.Response, error) { OnEndBuildletProbeCalled = true },
}
ctx, cancel := context.WithCancel(context.Background())
cancel()
gotClient, gotErr := buildletClient(ctx, ts.URL, u.Host, opt)
if gotErr == nil {
t.Errorf("buildletClient(ctx, %s, %s, %v) error %s", ts.URL, u.Host, opt, gotErr)
}
if gotClient != nil {
t.Errorf("client should be nil")
}
if httpCalled {
t.Error("http endpoint called")
}
if !OnBeginBuildletProbeCalled {
t.Error("OnBeginBuildletProbe() was not called")
}
if !OnEndBuildletProbeCalled {
t.Error("OnEndBuildletProbe() was not called")
}
}
func TestProbeBuildlet(t *testing.T) {
var httpCalled, OnBeginBuildletProbeCalled, OnEndBuildletProbeCalled bool
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
httpCalled = true
fmt.Fprintln(w, "buildlet endpoint reached")
}))
defer ts.Close()
opt := &VMOpts{
OnBeginBuildletProbe: func(string) { OnBeginBuildletProbeCalled = true },
OnEndBuildletProbe: func(*http.Response, error) { OnEndBuildletProbeCalled = true },
}
gotErr := probeBuildlet(context.Background(), ts.URL, opt)
if gotErr != nil {
t.Errorf("probeBuildlet(ctx, %q, %+v) = %s; want no error", ts.URL, opt, gotErr)
}
if !httpCalled {
t.Error("http endpoint never called")
}
if !OnBeginBuildletProbeCalled {
t.Error("OnBeginBuildletProbe() was not called")
}
if !OnEndBuildletProbeCalled {
t.Error("OnEndBuildletProbe() was not called")
}
}
func TestProbeBuildletError(t *testing.T) {
var httpCalled bool
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
httpCalled = true
http.Error(w, "all types of broken", http.StatusInternalServerError)
}))
defer ts.Close()
opt := &VMOpts{}
gotErr := probeBuildlet(context.Background(), ts.URL, opt)
if gotErr == nil {
t.Errorf("probeBuildlet(ctx, %q, %+v) = nil; want error", ts.URL, opt)
}
if !httpCalled {
t.Error("http endpoint never called")
}
}

Просмотреть файл

@ -6,11 +6,9 @@ package buildlet
import (
"context"
"crypto/tls"
"errors"
"fmt"
"log"
"net/http"
"sort"
"strings"
"sync"
@ -33,56 +31,6 @@ func apiGate() {
}
}
// VMOpts control how new VMs are started.
type VMOpts struct {
// Zone is the GCE zone to create the VM in.
// Optional; defaults to provided build environment's zone.
Zone string
// ProjectID is the GCE project ID (e.g. "foo-bar-123", not
// the numeric ID).
// Optional; defaults to provided build environment's project ID ("name").
ProjectID string
// TLS optionally specifies the TLS keypair to use.
// If zero, http without auth is used.
TLS KeyPair
// Optional description of the VM.
Description string
// Optional metadata to put on the instance.
Meta map[string]string
// DeleteIn optionally specifies a duration at which
// to delete the VM.
// If zero, a reasonable default is used.
// Negative means no deletion timeout.
DeleteIn time.Duration
// OnInstanceRequested optionally specifies a hook to run synchronously
// after the computeService.Instances.Insert call, but before
// waiting for its operation to proceed.
OnInstanceRequested func()
// OnInstanceCreated optionally specifies a hook to run synchronously
// after the instance operation succeeds.
OnInstanceCreated func()
// OnInstanceCreated optionally specifies a hook to run synchronously
// after the computeService.Instances.Get call.
OnGotInstanceInfo func(*compute.Instance)
// OnBeginBuildletProbe optionally specifies a hook to run synchronously
// before StartNewVM tries to hit buildletURL to see if it's up yet.
OnBeginBuildletProbe func(buildletURL string)
// OnEndBuildletProbe optionally specifies a hook to run synchronously
// after StartNewVM tries to hit the buildlet's URL to see if it's up.
// The hook parameters are the return values from http.Get.
OnEndBuildletProbe func(*http.Response, error)
}
// StartNewVM boots a new VM on GCE and returns a buildlet client
// configured to speak to it.
func StartNewVM(creds *google.Credentials, buildEnv *buildenv.Environment, instName, hostType string, opts VMOpts) (*Client, error) {
@ -322,46 +270,7 @@ OpLoop:
if opts.OnGotInstanceInfo != nil {
opts.OnGotInstanceInfo(inst)
}
const timeout = 5 * time.Minute
var alive bool
impatientClient := &http.Client{
Timeout: 5 * time.Second,
Transport: &http.Transport{
Dial: defaultDialer(),
DisableKeepAlives: true,
TLSClientConfig: &tls.Config{
InsecureSkipVerify: true,
},
},
}
deadline := time.Now().Add(timeout)
try := 0
for time.Now().Before(deadline) {
try++
if fn := opts.OnBeginBuildletProbe; fn != nil {
fn(buildletURL)
}
res, err := impatientClient.Get(buildletURL)
if fn := opts.OnEndBuildletProbe; fn != nil {
fn(res, err)
}
if err != nil {
time.Sleep(1 * time.Second)
continue
}
res.Body.Close()
if res.StatusCode != 200 {
return nil, fmt.Errorf("buildlet returned HTTP status code %d on try number %d", res.StatusCode, try)
}
alive = true
break
}
if !alive {
return nil, fmt.Errorf("buildlet didn't come up at %s in %v", buildletURL, timeout)
}
return NewClient(ipPort, opts.TLS), nil
return buildletClient(ctx, buildletURL, ipPort, &opts)
}
// DestroyVM sends a request to delete a VM. Actual VM description is

Просмотреть файл

@ -551,6 +551,14 @@ var Hosts = map[string]*HostConfig{
env: []string{"GOROOT_BOOTSTRAP=/usr/local/go-bootstrap"},
SSHUsername: "root",
},
"host-linux-arm64-aws": &HostConfig{
Notes: "Debian Buster, EC2 arm64 instance. See x/build/env/linux-arm64/arm",
VMImage: "ami-0454a5239a73a9e81",
machineType: "a1.xlarge",
env: []string{"GOROOT_BOOTSTRAP=/usr/local/go-bootstrap"},
buildletURLTmpl: "http://storage.googleapis.com/$BUCKET/buildlet.linux-amd64",
SSHUsername: "admin",
},
"host-illumos-amd64-jclulow": &HostConfig{
Notes: "SmartOS base64@19.1.0 zone",
Owner: "josh@sysmgr.org",

1
go.mod
Просмотреть файл

@ -9,6 +9,7 @@ require (
cloud.google.com/go/storage v1.6.0
github.com/NYTimes/gziphandler v1.1.1
github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239 // indirect
github.com/aws/aws-sdk-go v1.30.15
github.com/bradfitz/go-smtpd v0.0.0-20170404230938-deb6d6237625
github.com/coreos/go-systemd v0.0.0-20181012123002-c6f51f82210d
github.com/davecgh/go-spew v1.1.1

8
go.sum
Просмотреть файл

@ -39,6 +39,8 @@ github.com/NYTimes/gziphandler v1.1.1 h1:ZUDjpQae29j0ryrS0u/B8HZfJBtBQHjqw2rQ2cq
github.com/NYTimes/gziphandler v1.1.1/go.mod h1:n/CVRwUEOgIxrgPvAQhUUr9oeUtvrhMomdKFjzJNB0c=
github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239 h1:kFOfPq6dUM1hTo4JG6LR5AXSUEsOjtdm0kw0FtQtMJA=
github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239/go.mod h1:2FmKhYUyUczH0OGQWaF5ceTx0UBShxjsH6f8oGKYe2c=
github.com/aws/aws-sdk-go v1.30.15 h1:Sd8QDVzzE8Sl+xNccmdj0HwMrFowv6uVUx9tGsCE1ZE=
github.com/aws/aws-sdk-go v1.30.15/go.mod h1:5zCpMtNQVjRREroY7sYe8lOMRSxkhG6MZveU8YkpAk0=
github.com/bradfitz/go-smtpd v0.0.0-20170404230938-deb6d6237625 h1:ckJgFhFWywOx+YLEMIJsTb+NV6NexWICk5+AMSuz3ss=
github.com/bradfitz/go-smtpd v0.0.0-20170404230938-deb6d6237625/go.mod h1:HYsPBTaaSFSlLx/70C2HPIMNZpVV8+vt/A+FMnYP11g=
github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
@ -61,6 +63,7 @@ github.com/gliderlabs/ssh v0.1.1/go.mod h1:U7qILu1NlMHj9FlMhZLlkCdDnU1DBEAqr0aev
github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
github.com/go-gl/glfw/v3.3/glfw v0.0.0-20191125211704-12ad95a8df72/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
github.com/go-gl/glfw/v3.3/glfw v0.0.0-20200222043503-6f7a984d4dc4/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
github.com/go-sql-driver/mysql v1.5.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LBy8hT2VhHyBg=
github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b h1:VKtxabqXZkF25pY9ekfRL6a582T4P37/31XEstQ5p58=
github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
@ -122,6 +125,8 @@ github.com/hashicorp/golang-lru v0.5.1/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ
github.com/ianlancetaylor/demangle v0.0.0-20181102032728-5e5cf60278f6/go.mod h1:aSSvb/t6k1mPoxDqO4vJh6VOCGPwU4O0C2/Eqndh1Sc=
github.com/jellevandenhooff/dkim v0.0.0-20150330215556-f50fe3d243e1 h1:ujPKutqRlJtcfWk6toYVYagwra7HQHbXOaS171b4Tg8=
github.com/jellevandenhooff/dkim v0.0.0-20150330215556-f50fe3d243e1/go.mod h1:E0B/fFc00Y+Rasa88328GlI/XbtyysCtTHZS8h7IrBU=
github.com/jmespath/go-jmespath v0.3.0 h1:OS12ieG61fsCg5+qLJ+SsW9NicxNkg3b25OyT2yCeUc=
github.com/jmespath/go-jmespath v0.3.0/go.mod h1:9QtRXoHjLGCJ5IBSaohpXITPlowMeeYCZ7fLUTSywik=
github.com/jstemmer/go-junit-report v0.0.0-20190106144839-af01ea7f8024 h1:rBMNdlhTLzJjJSDIjNEXX1Pz3Hmwmz91v+zycvx9PJc=
github.com/jstemmer/go-junit-report v0.0.0-20190106144839-af01ea7f8024/go.mod h1:6v2b51hI/fHJwM22ozAgKL4VKDeJcHhJFhtBdhmNjmU=
github.com/jstemmer/go-junit-report v0.9.1 h1:6QPYqodiu3GuPL+7mfx+NwDdp2eTkp9IfEUpgAwUN0o=
@ -134,6 +139,7 @@ github.com/kr/pty v1.1.3 h1:/Um6a/ZmD5tF7peoOJ5oN5KMQ0DrGVQSXLNwyckutPk=
github.com/kr/pty v1.1.3/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
@ -144,6 +150,8 @@ github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0
github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJyk=
github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
github.com/stretchr/testify v1.5.1 h1:nOGnQDM7FYENwehXlg/kFVnos3rEvtKTjRvOWSzb6H4=
github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
github.com/tarm/serial v0.0.0-20180830185346-98f6abe2eb07 h1:UyzmZLoiDWMRywV4DUYb9Fbt8uiOSooupjTq10vpvnU=
github.com/tarm/serial v0.0.0-20180830185346-98f6abe2eb07/go.mod h1:kDXzergiv9cbyO7IOYJZWg1U88JhDg3PB6klq9Hg2pA=
go.opencensus.io v0.21.0 h1:mU6zScU4U1YAFPHEHYk+3JC4SY7JxgkqS10ZOSyksNg=