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deploy.go
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deploy.go
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package ecspresso
import (
"context"
"fmt"
"os"
"os/exec"
"strings"
"time"
"github.com/kayac/ecspresso/appspec"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/service/codedeploy"
"github.com/aws/aws-sdk-go/service/ecs"
isatty "github.com/mattn/go-isatty"
"github.com/pkg/errors"
)
const (
CodeDeployConsoleURLFmt = "https://%s.console.aws.amazon.com/codesuite/codedeploy/deployments/%s?region=%s"
)
func calcDesiredCount(sv *ecs.Service, opt optWithDesiredCount) *int64 {
if aws.StringValue(sv.SchedulingStrategy) == "DAEMON" {
return nil
}
if oc := opt.getDesiredCount(); oc != nil {
if *oc == DefaultDesiredCount {
return sv.DesiredCount
}
return oc // --tasks
}
return nil
}
func (d *App) Deploy(opt DeployOption) error {
ctx, cancel := d.Start()
defer cancel()
var sv *ecs.Service
d.Log("Starting deploy", opt.DryRunString())
sv, err := d.DescribeServiceStatus(ctx, 0)
if err != nil {
return errors.Wrap(err, "failed to describe current service status")
}
var tdArn string
if *opt.LatestTaskDefinition {
family := strings.Split(arnToName(*sv.TaskDefinition), ":")[0]
var err error
tdArn, err = d.findLatestTaskDefinitionArn(ctx, family)
if err != nil {
return errors.Wrap(err, "failed to load latest task definition")
}
} else if *opt.SkipTaskDefinition {
tdArn = *sv.TaskDefinition
} else {
td, err := d.LoadTaskDefinition(d.config.TaskDefinitionPath)
if err != nil {
return errors.Wrap(err, "failed to load task definition")
}
if *opt.DryRun {
d.Log("task definition:")
d.LogJSON(td)
} else {
newTd, err := d.RegisterTaskDefinition(ctx, td)
if err != nil {
return errors.Wrap(err, "failed to register task definition")
}
tdArn = *newTd.TaskDefinitionArn
}
}
var count *int64
if d.config.ServiceDefinitionPath != "" && aws.BoolValue(opt.UpdateService) {
newSv, err := d.LoadServiceDefinition(d.config.ServiceDefinitionPath)
if err != nil {
return errors.Wrap(err, "failed to load service definition")
}
ds, err := diffServices(sv, newSv)
if err != nil {
return errors.Wrap(err, "failed to diff of service definitions")
}
if ds != "" {
if err = d.UpdateServiceAttributes(ctx, newSv, opt); err != nil {
return errors.Wrap(err, "failed to update service attributes")
}
sv = newSv // updated
} else {
d.Log("service attributes will not change")
}
count = calcDesiredCount(newSv, opt)
} else {
count = calcDesiredCount(sv, opt)
}
if count != nil {
d.Log("desired count:", *count)
} else {
d.Log("desired count: unchanged")
}
if *opt.DryRun {
d.Log("DRY RUN OK")
return nil
}
// manage auto scaling only when set option --suspend-auto-scaling or --no-suspend-auto-scaling explicitly
if suspend := opt.SuspendAutoScaling; suspend != nil {
if err := d.suspendAutoScaling(*suspend); err != nil {
return err
}
}
// detect controller
if dc := sv.DeploymentController; dc != nil {
switch t := *dc.Type; t {
case "CODE_DEPLOY":
return d.DeployByCodeDeploy(ctx, tdArn, count, sv, opt)
default:
return fmt.Errorf("could not deploy a service using deployment controller type %s", t)
}
}
// rolling deploy (ECS internal)
if err := d.UpdateServiceTasks(ctx, tdArn, count, opt); err != nil {
return errors.Wrap(err, "failed to update service tasks")
}
if *opt.NoWait {
d.Log("Service is deployed.")
return nil
}
if err := d.WaitServiceStable(ctx, time.Now()); err != nil {
return errors.Wrap(err, "failed to wait service stable")
}
d.Log("Service is stable now. Completed!")
return nil
}
func (d *App) UpdateServiceTasks(ctx context.Context, taskDefinitionArn string, count *int64, opt DeployOption) error {
in := &ecs.UpdateServiceInput{
Service: aws.String(d.Service),
Cluster: aws.String(d.Cluster),
TaskDefinition: aws.String(taskDefinitionArn),
DesiredCount: count,
ForceNewDeployment: opt.ForceNewDeployment,
}
msg := "Updating service tasks"
if *opt.ForceNewDeployment {
msg = msg + " with force new deployment"
}
msg = msg + "..."
d.Log(msg)
d.DebugLog(in.String())
_, err := d.ecs.UpdateServiceWithContext(ctx, in)
if err != nil {
return err
}
time.Sleep(delayForServiceChanged) // wait for service updated
return nil
}
func svToUpdateServiceInput(sv *ecs.Service) *ecs.UpdateServiceInput {
in := &ecs.UpdateServiceInput{
CapacityProviderStrategy: sv.CapacityProviderStrategy,
DeploymentConfiguration: sv.DeploymentConfiguration,
DesiredCount: sv.DesiredCount,
EnableExecuteCommand: sv.EnableExecuteCommand,
HealthCheckGracePeriodSeconds: sv.HealthCheckGracePeriodSeconds,
NetworkConfiguration: sv.NetworkConfiguration,
PlacementConstraints: sv.PlacementConstraints,
PlacementStrategy: sv.PlacementStrategy,
PlatformVersion: sv.PlatformVersion,
}
if aws.StringValue(sv.SchedulingStrategy) == "DAEMON" {
in.PlacementConstraints = nil
}
return in
}
func (d *App) UpdateServiceAttributes(ctx context.Context, sv *ecs.Service, opt DeployOption) error {
in := svToUpdateServiceInput(sv)
if isCodeDeploy(sv.DeploymentController) {
// unable to update attributes below with a CODE_DEPLOY deployment controller.
in.NetworkConfiguration = nil
in.PlatformVersion = nil
in.ForceNewDeployment = nil
} else {
in.ForceNewDeployment = opt.ForceNewDeployment
}
in.Service = aws.String(d.Service)
in.Cluster = aws.String(d.Cluster)
if *opt.DryRun {
d.Log("update service input:")
d.LogJSON(in)
return nil
}
d.Log("Updating service attributes...")
d.DebugLog(in.String())
if _, err := d.ecs.UpdateServiceWithContext(ctx, in); err != nil {
return err
}
time.Sleep(delayForServiceChanged) // wait for service updated
return nil
}
func (d *App) DeployByCodeDeploy(ctx context.Context, taskDefinitionArn string, count *int64, sv *ecs.Service, opt DeployOption) error {
if count != nil {
d.Log("updating desired count to", *count)
}
_, err := d.ecs.UpdateServiceWithContext(
ctx,
&ecs.UpdateServiceInput{
Service: aws.String(d.Service),
Cluster: aws.String(d.Cluster),
DesiredCount: count,
},
)
if err != nil {
return errors.Wrap(err, "failed to update service")
}
if aws.BoolValue(opt.SkipTaskDefinition) && !aws.BoolValue(opt.UpdateService) && !aws.BoolValue(opt.ForceNewDeployment) {
// no need to create new deployment.
return nil
}
spec, err := appspec.NewWithService(sv, taskDefinitionArn)
if err != nil {
return errors.Wrap(err, "failed to create appspec")
}
if d.config.AppSpec != nil {
spec.Hooks = d.config.AppSpec.Hooks
}
d.DebugLog("appSpecContent:", spec.String())
// deployment
dp, err := d.findDeploymentInfo()
if err != nil {
return err
}
dd := &codedeploy.CreateDeploymentInput{
ApplicationName: dp.ApplicationName,
DeploymentGroupName: dp.DeploymentGroupName,
DeploymentConfigName: dp.DeploymentConfigName,
Revision: &codedeploy.RevisionLocation{
RevisionType: aws.String("AppSpecContent"),
AppSpecContent: &codedeploy.AppSpecContent{
Content: aws.String(spec.String()),
},
},
}
if ev := aws.StringValue(opt.RollbackEvents); ev != "" {
var events []*string
for _, ev := range strings.Split(ev, ",") {
events = append(events, aws.String(ev))
}
dd.AutoRollbackConfiguration = &codedeploy.AutoRollbackConfiguration{
Enabled: aws.Bool(true),
Events: events,
}
}
d.DebugLog("creating a deployment to CodeDeploy", dd.String())
res, err := d.codedeploy.CreateDeploymentWithContext(ctx, dd)
if err != nil {
return errors.Wrap(err, "failed to create deployment")
}
id := *res.DeploymentId
u := fmt.Sprintf(
CodeDeployConsoleURLFmt,
d.config.Region,
id,
d.config.Region,
)
d.Log(fmt.Sprintf("Deployment %s is created on CodeDeploy:", id))
d.Log(u)
if isatty.IsTerminal(os.Stdout.Fd()) {
if err := exec.Command("open", u).Start(); err != nil {
d.Log("Couldn't open URL", u)
}
}
return nil
}
func (d *App) findDeploymentInfo() (*codedeploy.DeploymentInfo, error) {
// search deploymentGroup in CodeDeploy
d.DebugLog("find all applications in CodeDeploy")
la, err := d.codedeploy.ListApplications(&codedeploy.ListApplicationsInput{})
if err != nil {
return nil, err
}
if len(la.Applications) == 0 {
return nil, errors.New("no any applications in CodeDeploy")
}
apps, err := d.codedeploy.BatchGetApplications(&codedeploy.BatchGetApplicationsInput{
ApplicationNames: la.Applications,
})
if err != nil {
return nil, err
}
for _, info := range apps.ApplicationsInfo {
d.DebugLog("application", info.String())
if *info.ComputePlatform != "ECS" {
continue
}
lg, err := d.codedeploy.ListDeploymentGroups(&codedeploy.ListDeploymentGroupsInput{
ApplicationName: info.ApplicationName,
})
if err != nil {
return nil, err
}
if len(lg.DeploymentGroups) == 0 {
d.DebugLog("no deploymentGroups in application", *info.ApplicationName)
continue
}
groups, err := d.codedeploy.BatchGetDeploymentGroups(&codedeploy.BatchGetDeploymentGroupsInput{
ApplicationName: info.ApplicationName,
DeploymentGroupNames: lg.DeploymentGroups,
})
if err != nil {
return nil, err
}
for _, dg := range groups.DeploymentGroupsInfo {
d.DebugLog("deploymentGroup", dg.String())
for _, ecsService := range dg.EcsServices {
if *ecsService.ClusterName == d.config.Cluster && *ecsService.ServiceName == d.config.Service {
return &codedeploy.DeploymentInfo{
ApplicationName: aws.String(*info.ApplicationName),
DeploymentGroupName: aws.String(*dg.DeploymentGroupName),
DeploymentConfigName: aws.String(*dg.DeploymentConfigName),
}, nil
}
}
}
}
return nil, fmt.Errorf(
"failed to find CodeDeploy Application/DeploymentGroup for ECS service %s on cluster %s",
d.config.Service,
d.config.Cluster,
)
}
func isCodeDeploy(dc *ecs.DeploymentController) bool {
if dc != nil && dc.Type != nil && *dc.Type == "CODE_DEPLOY" {
return true
}
return false
}