// Config returns the default configuration without credentials.
// To retrieve a config with credentials also included use
// `defaults.Get().Config` instead.
//
// Generally you shouldn't need to use this method directly, but
// is available if you need to reset the configuration of an
// existing service client or session.
func Config() *aws.Config {
return aws.NewConfig().
WithCredentials(credentials.AnonymousCredentials).
WithRegion(os.Getenv("AWS_REGION")).
WithHTTPClient(http.DefaultClient).
WithMaxRetries(aws.UseServiceDefaultRetries).
WithLogger(aws.NewDefaultLogger()).
WithLogLevel(aws.LogOff).
WithSleepDelay(time.Sleep)
}
func main() {
flag.Parse()
fmt.Println("Hello world!")
log.Println("Step 1: Configuring AWS")
ecsCli := ecs.New(session.New(aws.NewConfig().
WithRegion("eu-west-1").
WithCredentials(credentials.NewStaticCredentials(*key, *secret, "foo"))))
log.Println("Configuring AWS succeeded")
log.Println("Step 2: Check ECS cluster")
describeClusterOut, err := ecsCli.DescribeClusters(&ecs.DescribeClustersInput{
Clusters: []*string{clusterName},
})
if err != nil {
log.Fatal(err)
}
if ff := describeClusterOut.Failures; len(ff) > 0 {
log.Fatalf("Cluster resource '%s' failed: %v", *ff[0].Arn, *ff[0].Reason)
}
log.Printf("Checking cluster '%s' succeeded", *clusterName)
log.Println("Step 3: Check ECS Service")
describeServicesOut, err := ecsCli.DescribeServices(&ecs.DescribeServicesInput{
Services: []*string{serviceName},
})
if err != nil {
log.Fatal(err)
}
origRunningCount := describeServicesOut.Services[0].RunningCount
log.Printf("Checking service '%s' succeeded (%d tasks running)", *serviceName, *origRunningCount)
log.Println("Step 4: Register New Task Definition")
var cd []*ecs.ContainerDefinition
taskDefinitionFile, err := os.Open(*taskDefinitionFileName)
if err != nil {
log.Fatal(err)
}
defer taskDefinitionFile.Close()
err = json.NewDecoder(taskDefinitionFile).Decode(&cd)
if err != nil {
log.Fatal(err)
}
registerTaskDefinitionOut, err := ecsCli.RegisterTaskDefinition(&ecs.RegisterTaskDefinitionInput{
ContainerDefinitions: cd,
Family: taskDefinitionName,
})
if err != nil {
log.Fatal(err)
}
if *registerTaskDefinitionOut.TaskDefinition.Status == "INACTIVE" {
log.Fatalf("Task definition (%s) is inactive", *registerTaskDefinitionOut.TaskDefinition.TaskDefinitionArn)
}
taskDefinitionArn := registerTaskDefinitionOut.TaskDefinition.TaskDefinitionArn
log.Printf("Registering task definition '%s' succeeded", *taskDefinitionArn)
_, err = ecsCli.UpdateService(&ecs.UpdateServiceInput{
DesiredCount: desiredTasksCount,
Service: serviceName,
TaskDefinition: taskDefinitionArn,
})
if err != nil {
log.Fatal(err)
}
}