Merge pull request #21102 from hashicorp/pault/remote-backend-go-tfe-update

update to latest go-tfe

backend/remote/backend_common.go

@@ -227,6 +227,57 @@ func (b *Remote) parseVariableValues(op *backend.Operation) (terraform.InputValu
 	return result, diags
 }
 
+func (b *Remote) costEstimation(stopCtx, cancelCtx context.Context, op *backend.Operation, r *tfe.Run) error {
+	if r.CostEstimation == nil {
+		return nil
+	}
+
+	if b.CLI != nil {
+		b.CLI.Output("\n------------------------------------------------------------------------\n")
+	}
+
+	logs, err := b.client.CostEstimations.Logs(stopCtx, r.CostEstimation.ID)
+	if err != nil {
+		return generalError("Failed to retrieve cost estimation logs", err)
+	}
+	scanner := bufio.NewScanner(logs)
+
+	// Retrieve the cost estimation to get its current status.
+	ce, err := b.client.CostEstimations.Read(stopCtx, r.CostEstimation.ID)
+	if err != nil {
+		return generalError("Failed to retrieve cost estimation", err)
+	}
+
+	msgPrefix := "Cost estimation"
+	if b.CLI != nil {
+		b.CLI.Output(b.Colorize().Color(msgPrefix + ":\n"))
+	}
+
+	for scanner.Scan() {
+		if b.CLI != nil {
+			b.CLI.Output(b.Colorize().Color(scanner.Text()))
+		}
+	}
+
+	if err := scanner.Err(); err != nil {
+		return generalError("Failed to read logs", err)
+	}
+
+	switch ce.Status {
+	case tfe.CostEstimationFinished:
+		if len(r.PolicyChecks) == 0 && r.HasChanges && op.Type == backend.OperationTypeApply && b.CLI != nil {
+			b.CLI.Output("\n------------------------------------------------------------------------")
+		}
+		return nil
+	case tfe.CostEstimationErrored:
+		return fmt.Errorf(msgPrefix + " errored.")
+	case tfe.CostEstimationCanceled:
+		return fmt.Errorf(msgPrefix + " canceled.")
+	default:
+		return fmt.Errorf("Unknown or unexpected cost estimation state: %s", ce.Status)
+	}
+}
+
 func (b *Remote) checkPolicy(stopCtx, cancelCtx context.Context, op *backend.Operation, r *tfe.Run) error {
 	if b.CLI != nil {
 		b.CLI.Output("\n------------------------------------------------------------------------\n")

backend/remote/backend_mock.go

@@ -21,6 +21,7 @@ import (
 type mockClient struct {
 	Applies               *mockApplies
 	ConfigurationVersions *mockConfigurationVersions
+	CostEstimations       *mockCostEstimations
 	Organizations         *mockOrganizations
 	Plans                 *mockPlans
 	PolicyChecks          *mockPolicyChecks
@@ -33,6 +34,7 @@ func newMockClient() *mockClient {
 	c := &mockClient{}
 	c.Applies = newMockApplies(c)
 	c.ConfigurationVersions = newMockConfigurationVersions(c)
+	c.CostEstimations = newMockCostEstimations(c)
 	c.Organizations = newMockOrganizations(c)
 	c.Plans = newMockPlans(c)
 	c.PolicyChecks = newMockPolicyChecks(c)
@@ -212,6 +214,84 @@ func (m *mockConfigurationVersions) Upload(ctx context.Context, url, path string
 	return nil
 }
 
+type mockCostEstimations struct {
+	client      *mockClient
+	estimations map[string]*tfe.CostEstimation
+	logs        map[string]string
+}
+
+func newMockCostEstimations(client *mockClient) *mockCostEstimations {
+	return &mockCostEstimations{
+		client:      client,
+		estimations: make(map[string]*tfe.CostEstimation),
+		logs:        make(map[string]string),
+	}
+}
+
+// create is a helper function to create a mock cost estimation that uses the
+// configured working directory to find the logfile.
+func (m *mockCostEstimations) create(cvID, workspaceID string) (*tfe.CostEstimation, error) {
+	id := generateID("ce-")
+
+	ce := &tfe.CostEstimation{
+		ID:     id,
+		Status: tfe.CostEstimationQueued,
+	}
+
+	w, ok := m.client.Workspaces.workspaceIDs[workspaceID]
+	if !ok {
+		return nil, tfe.ErrResourceNotFound
+	}
+
+	logfile := filepath.Join(
+		m.client.ConfigurationVersions.uploadPaths[cvID],
+		w.WorkingDirectory,
+		"ce.log",
+	)
+
+	if _, err := os.Stat(logfile); os.IsNotExist(err) {
+		return nil, nil
+	}
+
+	m.logs[ce.ID] = logfile
+	m.estimations[ce.ID] = ce
+
+	return ce, nil
+}
+
+func (m *mockCostEstimations) Read(ctx context.Context, costEstimationID string) (*tfe.CostEstimation, error) {
+	ce, ok := m.estimations[costEstimationID]
+	if !ok {
+		return nil, tfe.ErrResourceNotFound
+	}
+	return ce, nil
+}
+
+func (m *mockCostEstimations) Logs(ctx context.Context, costEstimationID string) (io.Reader, error) {
+	ce, ok := m.estimations[costEstimationID]
+	if !ok {
+		return nil, tfe.ErrResourceNotFound
+	}
+
+	logfile, ok := m.logs[ce.ID]
+	if !ok {
+		return nil, tfe.ErrResourceNotFound
+	}
+
+	if _, err := os.Stat(logfile); os.IsNotExist(err) {
+		return bytes.NewBufferString("logfile does not exist"), nil
+	}
+
+	logs, err := ioutil.ReadFile(logfile)
+	if err != nil {
+		return nil, err
+	}
+
+	ce.Status = tfe.CostEstimationFinished
+
+	return bytes.NewBuffer(logs), nil
+}
+
 // mockInput is a mock implementation of terraform.UIInput.
 type mockInput struct {
 	answers map[string]string
@@ -652,6 +732,11 @@ func (m *mockRuns) Create(ctx context.Context, options tfe.RunCreateOptions) (*t
 		return nil, err
 	}
 
+	ce, err := m.client.CostEstimations.create(options.ConfigurationVersion.ID, options.Workspace.ID)
+	if err != nil {
+		return nil, err
+	}
+
 	pc, err := m.client.PolicyChecks.create(options.ConfigurationVersion.ID, options.Workspace.ID)
 	if err != nil {
 		return nil, err
@@ -661,6 +746,7 @@ func (m *mockRuns) Create(ctx context.Context, options tfe.RunCreateOptions) (*t
 		ID:             generateID("run-"),
 		Actions:        &tfe.RunActions{IsCancelable: true},
 		Apply:          a,
+		CostEstimation: ce,
 		HasChanges:     false,
 		Permissions:    &tfe.RunPermissions{},
 		Plan:           p,

backend/remote/backend_plan.go

@@ -290,6 +290,14 @@ func (b *Remote) plan(stopCtx, cancelCtx context.Context, op *backend.Operation,
 		return r, nil
 	}
 
+	// Show any cost estimation output.
+	if r.CostEstimation != nil {
+		err = b.costEstimation(stopCtx, cancelCtx, op, r)
+		if err != nil {
+			return r, err
+		}
+	}
+
 	// Check any configured sentinel policies.
 	if len(r.PolicyChecks) > 0 {
 		err = b.checkPolicy(stopCtx, cancelCtx, op, r)

backend/remote/backend_plan_test.go

@@ -655,6 +655,40 @@ func TestRemote_planWithWorkingDirectory(t *testing.T) {
 	}
 }
 
+func TestRemote_costEstimation(t *testing.T) {
+	b, bCleanup := testBackendDefault(t)
+	defer bCleanup()
+
+	op, configCleanup := testOperationPlan(t, "./test-fixtures/plan-cost-estimation")
+	defer configCleanup()
+
+	op.Workspace = backend.DefaultStateName
+
+	run, err := b.Operation(context.Background(), op)
+	if err != nil {
+		t.Fatalf("error starting operation: %v", err)
+	}
+
+	<-run.Done()
+	if run.Result != backend.OperationSuccess {
+		t.Fatalf("operation failed: %s", b.CLI.(*cli.MockUi).ErrorWriter.String())
+	}
+	if run.PlanEmpty {
+		t.Fatalf("expected a non-empty plan")
+	}
+
+	output := b.CLI.(*cli.MockUi).OutputWriter.String()
+	if !strings.Contains(output, "Running plan in the remote backend") {
+		t.Fatalf("expected remote backend header in output: %s", output)
+	}
+	if !strings.Contains(output, "SKU") {
+		t.Fatalf("expected cost estimation result in output: %s", output)
+	}
+	if !strings.Contains(output, "1 to add, 0 to change, 0 to destroy") {
+		t.Fatalf("expected plan summary in output: %s", output)
+	}
+}
+
 func TestRemote_planPolicyPass(t *testing.T) {
 	b, bCleanup := testBackendDefault(t)
 	defer bCleanup()
@@ -681,12 +715,12 @@ func TestRemote_planPolicyPass(t *testing.T) {
 	if !strings.Contains(output, "Running plan in the remote backend") {
 		t.Fatalf("expected remote backend header in output: %s", output)
 	}
-	if !strings.Contains(output, "1 to add, 0 to change, 0 to destroy") {
-		t.Fatalf("expected plan summery in output: %s", output)
-	}
 	if !strings.Contains(output, "Sentinel Result: true") {
 		t.Fatalf("expected policy check result in output: %s", output)
 	}
+	if !strings.Contains(output, "1 to add, 0 to change, 0 to destroy") {
+		t.Fatalf("expected plan summery in output: %s", output)
+	}
 }
 
 func TestRemote_planPolicyHardFail(t *testing.T) {
@@ -720,12 +754,12 @@ func TestRemote_planPolicyHardFail(t *testing.T) {
 	if !strings.Contains(output, "Running plan in the remote backend") {
 		t.Fatalf("expected remote backend header in output: %s", output)
 	}
-	if !strings.Contains(output, "1 to add, 0 to change, 0 to destroy") {
-		t.Fatalf("expected plan summery in output: %s", output)
-	}
 	if !strings.Contains(output, "Sentinel Result: false") {
 		t.Fatalf("expected policy check result in output: %s", output)
 	}
+	if !strings.Contains(output, "1 to add, 0 to change, 0 to destroy") {
+		t.Fatalf("expected plan summery in output: %s", output)
+	}
 }
 
 func TestRemote_planPolicySoftFail(t *testing.T) {
@@ -759,12 +793,12 @@ func TestRemote_planPolicySoftFail(t *testing.T) {
 	if !strings.Contains(output, "Running plan in the remote backend") {
 		t.Fatalf("expected remote backend header in output: %s", output)
 	}
-	if !strings.Contains(output, "1 to add, 0 to change, 0 to destroy") {
-		t.Fatalf("expected plan summery in output: %s", output)
-	}
 	if !strings.Contains(output, "Sentinel Result: false") {
 		t.Fatalf("expected policy check result in output: %s", output)
 	}
+	if !strings.Contains(output, "1 to add, 0 to change, 0 to destroy") {
+		t.Fatalf("expected plan summery in output: %s", output)
+	}
 }
 
 func TestRemote_planWithRemoteError(t *testing.T) {

backend/remote/test-fixtures/plan-cost-estimation/ce.log

@@ -0,0 +1,6 @@
++---------+------+-----+-------------+----------------------+
+| PRODUCT | NAME | SKU | DESCRIPTION |        DELTA         |
++---------+------+-----+-------------+----------------------+
++---------+------+-----+-------------+----------------------+
+|                           TOTAL    | $0.000 USD / 720 HRS |
++---------+------+-----+-------------+----------------------+

backend/remote/test-fixtures/plan-cost-estimation/main.tf

@@ -0,0 +1 @@
+resource "null_resource" "foo" {}

backend/remote/test-fixtures/plan-cost-estimation/plan.log

@@ -0,0 +1,21 @@
+Terraform v0.11.7
+
+Configuring remote state backend...
+Initializing Terraform configuration...
+Refreshing Terraform state in-memory prior to plan...
+The refreshed state will be used to calculate this plan, but will not be
+persisted to local or remote state storage.
+
+------------------------------------------------------------------------
+
+An execution plan has been generated and is shown below.
+Resource actions are indicated with the following symbols:
+  + create
+
+Terraform will perform the following actions:
+
+  + null_resource.foo
+      id: <computed>
+
+
+Plan: 1 to add, 0 to change, 0 to destroy.

backend/remote/testing.go

@@ -115,6 +115,7 @@ func testBackend(t *testing.T, obj cty.Value) (*Remote, func()) {
 	b.CLI = cli.NewMockUi()
 	b.client.Applies = mc.Applies
 	b.client.ConfigurationVersions = mc.ConfigurationVersions
+	b.client.CostEstimations = mc.CostEstimations
 	b.client.Organizations = mc.Organizations
 	b.client.Plans = mc.Plans
 	b.client.PolicyChecks = mc.PolicyChecks

go.mod

@@ -55,7 +55,7 @@ require (
 	github.com/hashicorp/go-retryablehttp v0.5.2
 	github.com/hashicorp/go-rootcerts v1.0.0
 	github.com/hashicorp/go-sockaddr v0.0.0-20180320115054-6d291a969b86 // indirect
-	github.com/hashicorp/go-tfe v0.3.14
+	github.com/hashicorp/go-tfe v0.3.16
 	github.com/hashicorp/go-uuid v1.0.1
 	github.com/hashicorp/go-version v1.1.0
 	github.com/hashicorp/golang-lru v0.5.0 // indirect

go.sum

@@ -191,8 +191,8 @@ github.com/hashicorp/go-slug v0.3.0 h1:L0c+AvH/J64iMNF4VqRaRku2DMTEuHioPVS7kMjWI
 github.com/hashicorp/go-slug v0.3.0/go.mod h1:I5tq5Lv0E2xcNXNkmx7BSfzi1PsJ2cNjs3cC3LwyhK8=
 github.com/hashicorp/go-sockaddr v0.0.0-20180320115054-6d291a969b86 h1:7YOlAIO2YWnJZkQp7B5eFykaIY7C9JndqAFQyVV5BhM=
 github.com/hashicorp/go-sockaddr v0.0.0-20180320115054-6d291a969b86/go.mod h1:7Xibr9yA9JjQq1JpNB2Vw7kxv8xerXegt+ozgdvDeDU=
-github.com/hashicorp/go-tfe v0.3.14 h1:1eWmq4RAICGufydNUWu7ahb0gtq24pN9jatD2FkdxdE=
+github.com/hashicorp/go-tfe v0.3.16 h1:GS2yv580p0co4j3FBVaC6Zahd9mxdCGehhJ0qqzFMH0=
-github.com/hashicorp/go-tfe v0.3.14/go.mod h1:SuPHR+OcxvzBZNye7nGPfwZTEyd3rWPfLVbCgyZPezM=
+github.com/hashicorp/go-tfe v0.3.16/go.mod h1:SuPHR+OcxvzBZNye7nGPfwZTEyd3rWPfLVbCgyZPezM=
 github.com/hashicorp/go-uuid v1.0.0 h1:RS8zrF7PhGwyNPOtxSClXXj9HA8feRnJzgnI1RJCSnM=
 github.com/hashicorp/go-uuid v1.0.0/go.mod h1:6SBZvOh/SIDV7/2o3Jml5SYk/TvGqwFJ/bN7x4byOro=
 github.com/hashicorp/go-uuid v1.0.1 h1:fv1ep09latC32wFoVwnqcnKJGnMSdBanPczbHAYm1BE=

vendor/github.com/hashicorp/go-tfe/cost_estimation.go

@@ -0,0 +1,121 @@
+package tfe
+
+import (
+	"bytes"
+	"context"
+	"errors"
+	"fmt"
+	"io"
+	"net/url"
+	"time"
+)
+
+// Compile-time proof of interface implementation.
+var _ CostEstimations = (*costEstimations)(nil)
+
+// CostEstimations describes all the costEstimation related methods that
+// the Terraform Enterprise API supports.
+//
+// TFE API docs: https://www.terraform.io/docs/enterprise/api/ (TBD)
+type CostEstimations interface {
+	// Read a costEstimation by its ID.
+	Read(ctx context.Context, costEstimationID string) (*CostEstimation, error)
+
+	// Logs retrieves the logs of a costEstimation.
+	Logs(ctx context.Context, costEstimationID string) (io.Reader, error)
+}
+
+// costEstimations implements CostEstimations.
+type costEstimations struct {
+	client *Client
+}
+
+// CostEstimationStatus represents a costEstimation state.
+type CostEstimationStatus string
+
+//List all available costEstimation statuses.
+const (
+	CostEstimationCanceled CostEstimationStatus = "canceled"
+	CostEstimationErrored  CostEstimationStatus = "errored"
+	CostEstimationFinished CostEstimationStatus = "finished"
+	CostEstimationQueued   CostEstimationStatus = "queued"
+)
+
+// CostEstimation represents a Terraform Enterprise costEstimation.
+type CostEstimation struct {
+	ID               string                          `jsonapi:"primary,cost-estimations"`
+	ErrorMessage     string                          `jsonapi:"attr,error-message"`
+	Status           CostEstimationStatus            `jsonapi:"attr,status"`
+	StatusTimestamps *CostEstimationStatusTimestamps `jsonapi:"attr,status-timestamps"`
+}
+
+// CostEstimationStatusTimestamps holds the timestamps for individual costEstimation statuses.
+type CostEstimationStatusTimestamps struct {
+	CanceledAt time.Time `json:"canceled-at"`
+	ErroredAt  time.Time `json:"errored-at"`
+	FinishedAt time.Time `json:"finished-at"`
+	QueuedAt   time.Time `json:"queued-at"`
+}
+
+// Read a costEstimation by its ID.
+func (s *costEstimations) Read(ctx context.Context, costEstimationID string) (*CostEstimation, error) {
+	if !validStringID(&costEstimationID) {
+		return nil, errors.New("invalid value for cost estimation ID")
+	}
+
+	u := fmt.Sprintf("cost-estimations/%s", url.QueryEscape(costEstimationID))
+	req, err := s.client.newRequest("GET", u, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	ce := &CostEstimation{}
+	err = s.client.do(ctx, req, ce)
+	if err != nil {
+		return nil, err
+	}
+
+	return ce, nil
+}
+
+// Logs retrieves the logs of a costEstimation.
+func (s *costEstimations) Logs(ctx context.Context, costEstimationID string) (io.Reader, error) {
+	if !validStringID(&costEstimationID) {
+		return nil, errors.New("invalid value for cost estimation ID")
+	}
+
+	// Loop until the context is canceled or the cost estimation is finished
+	// running. The cost estimation logs are not streamed and so only available
+	// once the estimation is finished.
+	for {
+		// Get the costEstimation to make sure it exists.
+		ce, err := s.Read(ctx, costEstimationID)
+		if err != nil {
+			return nil, err
+		}
+
+		switch ce.Status {
+		case CostEstimationQueued:
+			select {
+			case <-ctx.Done():
+				return nil, ctx.Err()
+			case <-time.After(500 * time.Millisecond):
+				continue
+			}
+		}
+
+		u := fmt.Sprintf("cost-estimations/%s/output", url.QueryEscape(costEstimationID))
+		req, err := s.client.newRequest("GET", u, nil)
+		if err != nil {
+			return nil, err
+		}
+
+		logs := bytes.NewBuffer(nil)
+		err = s.client.do(ctx, req, logs)
+		if err != nil {
+			return nil, err
+		}
+
+		return logs, nil
+	}
+}

vendor/github.com/hashicorp/go-tfe/organization.go

@@ -77,6 +77,7 @@ type OrganizationList struct {
 type Organization struct {
 	Name                   string                   `jsonapi:"primary,organizations"`
 	CollaboratorAuthPolicy AuthPolicyType           `jsonapi:"attr,collaborator-auth-policy"`
+	CostEstimationEnabled  bool                     `jsonapi:"attr,cost-estimation-enabled"`
 	CreatedAt              time.Time                `jsonapi:"attr,created-at,iso8601"`
 	Email                  string                   `jsonapi:"attr,email"`
 	EnterprisePlan         EnterprisePlanType       `jsonapi:"attr,enterprise-plan"`
@@ -167,6 +168,9 @@ type OrganizationCreateOptions struct {
 	// Authentication policy.
 	CollaboratorAuthPolicy *AuthPolicyType `jsonapi:"attr,collaborator-auth-policy,omitempty"`
 
+	// Enable Cost Estimation
+	CostEstimationEnabled *bool `jsonapi:"attr,cost-estimation-enabled,omitempty"`
+
 	// The name of the "owners" team
 	OwnersTeamSAMLRoleID *string `jsonapi:"attr,owners-team-saml-role-id,omitempty"`
 }
@@ -248,6 +252,9 @@ type OrganizationUpdateOptions struct {
 	// Authentication policy.
 	CollaboratorAuthPolicy *AuthPolicyType `jsonapi:"attr,collaborator-auth-policy,omitempty"`
 
+	// Enable Cost Estimation
+	CostEstimationEnabled *bool `jsonapi:"attr,cost-estimation-enabled,omitempty"`
+
 	// The name of the "owners" team
 	OwnersTeamSAMLRoleID *string `jsonapi:"attr,owners-team-saml-role-id,omitempty"`
 }

vendor/github.com/hashicorp/go-tfe/run.go

@@ -49,12 +49,16 @@ type RunStatus string
 //List all available run statuses.
 const (
 	RunApplied            RunStatus = "applied"
+	RunApplyQueued        RunStatus = "apply_queued"
 	RunApplying           RunStatus = "applying"
 	RunCanceled           RunStatus = "canceled"
 	RunConfirmed          RunStatus = "confirmed"
+	RunCostEstimated      RunStatus = "cost_estimated"
+	RunCostEstimating     RunStatus = "cost_estimating"
 	RunDiscarded          RunStatus = "discarded"
 	RunErrored            RunStatus = "errored"
 	RunPending            RunStatus = "pending"
+	RunPlanQueued         RunStatus = "plan_queued"
 	RunPlanned            RunStatus = "planned"
 	RunPlannedAndFinished RunStatus = "planned_and_finished"
 	RunPlanning           RunStatus = "planning"
@@ -98,6 +102,7 @@ type Run struct {
 	// Relations
 	Apply                *Apply                `jsonapi:"relation,apply"`
 	ConfigurationVersion *ConfigurationVersion `jsonapi:"relation,configuration-version"`
+	CostEstimation       *CostEstimation       `jsonapi:"relation,cost-estimation"`
 	Plan                 *Plan                 `jsonapi:"relation,plan"`
 	PolicyChecks         []*PolicyCheck        `jsonapi:"relation,policy-checks"`
 	Workspace            *Workspace            `jsonapi:"relation,workspace"`
@@ -274,7 +279,7 @@ func (s *runs) Cancel(ctx context.Context, runID string, options RunCancelOption
 	return s.client.do(ctx, req, nil)
 }
 
-// RunCancelOptions represents the options for force-canceling a run.
+// RunForceCancelOptions represents the options for force-canceling a run.
 type RunForceCancelOptions struct {
 	// An optional comment explaining the reason for the force-cancel.
 	Comment *string `json:"comment,omitempty"`

vendor/github.com/hashicorp/go-tfe/tfe.go

@@ -106,6 +106,7 @@ type Client struct {
 
 	Applies                    Applies
 	ConfigurationVersions      ConfigurationVersions
+	CostEstimations            CostEstimations
 	NotificationConfigurations NotificationConfigurations
 	OAuthClients               OAuthClients
 	OAuthTokens                OAuthTokens
@@ -195,6 +196,7 @@ func NewClient(cfg *Config) (*Client, error) {
 	// Create the services.
 	client.Applies = &applies{client: client}
 	client.ConfigurationVersions = &configurationVersions{client: client}
+	client.CostEstimations = &costEstimations{client: client}
 	client.NotificationConfigurations = &notificationConfigurations{client: client}
 	client.OAuthClients = &oAuthClients{client: client}
 	client.OAuthTokens = &oAuthTokens{client: client}
@@ -247,7 +249,7 @@ func (c *Client) retryHTTPBackoff(min, max time.Duration, attemptNum int, resp *
 	}
 
 	// Use the rate limit backoff function when we are rate limited.
-	if resp.StatusCode == 429 {
+	if resp != nil && resp.StatusCode == 429 {
 		return rateLimitBackoff(min, max, attemptNum, resp)
 	}
 

vendor/modules.txt

@@ -290,7 +290,7 @@ github.com/hashicorp/go-rootcerts
 github.com/hashicorp/go-safetemp
 # github.com/hashicorp/go-slug v0.3.0
 github.com/hashicorp/go-slug
-# github.com/hashicorp/go-tfe v0.3.14
+# github.com/hashicorp/go-tfe v0.3.16
 github.com/hashicorp/go-tfe
 # github.com/hashicorp/go-uuid v1.0.1
 github.com/hashicorp/go-uuid