toolkit/mangle/quotas.go

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package main
import (
"fmt"
"log"
"os"
"sync"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/ec2"
"github.com/aws/aws-sdk-go/service/servicequotas"
)
func getQuotaCode(sess *session.Session) string {
sqSvc := servicequotas.New(sess)
input := &servicequotas.ListServiceQuotasInput{
ServiceCode: aws.String("ec2"),
}
for {
output, err := sqSvc.ListServiceQuotas(input)
if err != nil {
log.Println("Error getting quota code:", err)
os.Exit(1)
}
for _, quota := range output.Quotas {
if *quota.QuotaName == "Public AMIs" {
return *quota.QuotaCode
}
}
if output.NextToken == nil {
break
}
input.NextToken = output.NextToken
}
log.Println("Quota code not found")
os.Exit(1)
return ""
}
func getRegions(ec2Svc *ec2.EC2) ([]*string, error) {
input := &ec2.DescribeRegionsInput{}
output, err := ec2Svc.DescribeRegions(input)
if err != nil {
return nil, err
}
var regions []*string
for _, region := range output.Regions {
regions = append(regions, region.RegionName)
}
return regions, nil
}
type QuotaInfo struct {
CurrentQuota float64
DesiredValue float64
Status string
CaseId string
}
func getQuotaInfo(sqSvc *servicequotas.ServiceQuotas, quotaCode string, region string) *QuotaInfo {
input := &servicequotas.GetServiceQuotaInput{
ServiceCode: aws.String("ec2"),
QuotaCode: aws.String(quotaCode),
}
output, err := sqSvc.GetServiceQuota(input)
if err != nil {
if awsErr, ok := err.(awserr.Error); ok {
if message := awsErr.Code(); message == "UnknownOperationException" {
log.Printf("[sdk] Region %s does not appear to support Service Quotas: %v", region, message)
return nil
}
log.Fatalf("[sdk] Error getting quota info for %s: %v\n", region, awsErr)
}
}
currentValue := *output.Quota.Value
requestOutput, err := sqSvc.ListRequestedServiceQuotaChangeHistoryByQuota(&servicequotas.ListRequestedServiceQuotaChangeHistoryByQuotaInput{
ServiceCode: aws.String("ec2"),
QuotaCode: aws.String(quotaCode),
})
if err != nil {
log.Println("Error getting request info:", err)
os.Exit(1)
}
var desiredValue float64
var status string
var caseId string
if len(requestOutput.RequestedQuotas) > 0 {
desiredValue = *requestOutput.RequestedQuotas[len(requestOutput.RequestedQuotas)-1].DesiredValue
status = *requestOutput.RequestedQuotas[len(requestOutput.RequestedQuotas)-1].Status
caseId = *requestOutput.RequestedQuotas[len(requestOutput.RequestedQuotas)-1].CaseId
}
return &QuotaInfo{currentValue, desiredValue, status, caseId}
}
func listQuotas(sess *session.Session, quotaCode string, regions []*string) {
fmt.Println("Region\tQuota\tDesired\tStatus\tCaseId")
var wg sync.WaitGroup
wg.Add(len(regions))
for _, region := range regions {
go func(region string) {
defer wg.Done()
regionSqSvc := servicequotas.New(sess, &aws.Config{Region: aws.String(region)})
quotaInfo := getQuotaInfo(regionSqSvc, quotaCode, region)
if quotaInfo != nil {
fmt.Printf("%s\t%.0f\t%.0f\t%s\t%s\n", region, quotaInfo.CurrentQuota, quotaInfo.DesiredValue, quotaInfo.Status, quotaInfo.CaseId)
}
}(aws.StringValue(region))
}
wg.Wait()
}
func requestQuotaIncrease(sess *session.Session, quotaCode string, regions []string, quota float64) {
var wg sync.WaitGroup
wg.Add(len(regions))
for _, region := range regions {
go func(region string) {
defer wg.Done()
regionSqSvc := servicequotas.New(sess, &aws.Config{Region: aws.String(region)})
quotaInfo := getQuotaInfo(regionSqSvc, quotaCode, region)
if quotaInfo.CurrentQuota >= quota {
fmt.Printf("Quota for Public AMIs in region %s is already set to %.0f, skipping request.\n", region, quotaInfo.CurrentQuota)
} else {
input := &servicequotas.RequestServiceQuotaIncreaseInput{
ServiceCode: aws.String("ec2"),
QuotaCode: aws.String(quotaCode),
DesiredValue: aws.Float64(quota),
}
output, err := regionSqSvc.RequestServiceQuotaIncrease(input)
if err != nil {
fmt.Println("Error requesting quota increase:", err)
os.Exit(1)
}
fmt.Printf("Successfully submitted request with ID: %s\n", aws.StringValue(output.RequestedQuota.Id))
}
}(region)
}
wg.Wait()
}
func main() {
// Create session
sess := session.Must(session.NewSessionWithOptions(session.Options{
SharedConfigState: session.SharedConfigEnable,
}))
// Create EC2 client
ec2Svc := ec2.New(sess, &aws.Config{Region: aws.String("us-east-1")})
// Get the quota code for Public AMIs once
quotaCode := getQuotaCode(sess)
// Get all regions
regions, err := getRegions(ec2Svc)
if err != nil {
log.Println("Error getting regions:", err)
os.Exit(1)
}
// List quotas for all regions
listQuotas(sess, quotaCode, regions)
// Request quota increase for all regions
// requestQuotaIncrease(sess, quotaCode, regions)
}