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delete_aws.go
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delete_aws.go
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package cmd
import (
"strings"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/service/ec2"
"github.com/jenkins-x/jx/pkg/cloud/amazon"
"github.com/jenkins-x/jx/pkg/log"
logger "github.com/sirupsen/logrus"
"github.com/aws/aws-sdk-go/service/elbv2"
"github.com/spf13/cobra"
)
const gatewayDetachAttempts = 10
type DeleteAwsOptions struct {
*CommonOptions
Profile string
Region string
VpcId string
}
func NewCmdDeleteAws(commonOpts *CommonOptions) *cobra.Command {
options := &DeleteAwsOptions{
CommonOptions: commonOpts,
}
cmd := &cobra.Command{
Use: "aws",
Short: "Deletes given AWS VPC and resources associated with it (like elastic load balancers or subnets)",
Run: func(cmd *cobra.Command, args []string) {
options.Cmd = cmd
options.Args = args
err := options.Run()
CheckErr(err)
},
}
cmd.Flags().StringVarP(&options.LogLevel, "log-level", "", logger.InfoLevel.String(), "Logging level. Possible values - panic, fatal, error, warning, info, debug.")
cmd.Flags().StringVarP(&options.Profile, "profile", "", "", "AWS profile to use.")
cmd.Flags().StringVarP(&options.Region, "region", "", "", "AWS region to use.")
cmd.Flags().StringVarP(&options.VpcId, "vpc-id", "", "", "ID of VPC to delete.")
return cmd
}
func (o *DeleteAwsOptions) Run() error {
log.ConfigureLog(o.LogLevel)
vpcid := o.VpcId
session, err := amazon.NewAwsSession(o.Profile, o.Region)
if err != nil {
return err
}
svc := ec2.New(session)
// Delete elastic load balancers assigned to VPC
elbSvc := elbv2.New(session)
loadBalancers, err := elbSvc.DescribeLoadBalancers(&elbv2.DescribeLoadBalancersInput{})
if err != nil {
return err
}
for _, loadBalancer := range loadBalancers.LoadBalancers {
if *loadBalancer.VpcId == vpcid {
log.Infof("Deleting load balancer %s...\n", *loadBalancer.LoadBalancerName)
_, err = elbSvc.DeleteLoadBalancer(&elbv2.DeleteLoadBalancerInput{LoadBalancerArn: loadBalancer.LoadBalancerArn})
if err != nil {
return err
}
log.Infof("Load balancer %s deleted.\n", *loadBalancer.LoadBalancerName)
}
}
// Detached and delete internet gateways associated with given VPC
internetGateways, err := svc.DescribeInternetGateways(&ec2.DescribeInternetGatewaysInput{
Filters: []*ec2.Filter{
{
Name: aws.String("attachment.vpc-id"),
Values: []*string{
aws.String(vpcid),
},
},
},
})
if err != nil {
return err
}
for _, internetGateway := range internetGateways.InternetGateways {
if len(internetGateway.Attachments) > 0 {
err = o.retryUntilFatalError(gatewayDetachAttempts, 10*time.Second, func() (fatalError *FatalError, e error) {
_, err = svc.DetachInternetGateway(&ec2.DetachInternetGatewayInput{InternetGatewayId: internetGateway.InternetGatewayId, VpcId: aws.String(vpcid)})
log.Infof("Detaching internet gateway %s from VPC %s...\n", *internetGateway.InternetGatewayId, vpcid)
if err != nil {
if strings.Contains(err.Error(), "Please unmap those public address(es) before detaching the gateway") {
log.Info("Waiting for public address to be unmapped from internet gateway.")
return nil, err
}
return &FatalError{E: err}, nil
}
return nil, nil
})
if err != nil {
return err
}
log.Infof("Internet gateway %s detached successfully from VPC %s...\n", *internetGateway.InternetGatewayId, vpcid)
}
_, err = svc.DeleteInternetGateway(&ec2.DeleteInternetGatewayInput{InternetGatewayId: internetGateway.InternetGatewayId})
log.Infof("Deleting internet gateway %s...\n", *internetGateway.InternetGatewayId)
if err != nil {
return err
}
}
// Delete subnets assigned to VPC
subnets, err := svc.DescribeSubnets(&ec2.DescribeSubnetsInput{
Filters: []*ec2.Filter{
{
Name: aws.String("vpc-id"),
Values: []*string{
aws.String(vpcid),
},
},
},
})
for _, subnet := range subnets.Subnets {
interfaces, err := svc.DescribeNetworkInterfaces(&ec2.DescribeNetworkInterfacesInput{
Filters: []*ec2.Filter{
{
Name: aws.String("subnet-id"),
Values: []*string{
subnet.SubnetId,
},
},
},
})
if err != nil {
return err
}
for _, iface := range interfaces.NetworkInterfaces {
if iface.Attachment != nil {
log.Infof("Detaching interface %s\n", *iface.NetworkInterfaceId)
_, err = svc.DetachNetworkInterface(&ec2.DetachNetworkInterfaceInput{AttachmentId: iface.Attachment.AttachmentId})
if err != nil {
return err
}
}
_, err := svc.DeleteNetworkInterface(&ec2.DeleteNetworkInterfaceInput{NetworkInterfaceId: iface.NetworkInterfaceId})
if err != nil {
return err
}
}
_, err = svc.DeleteSubnet(&ec2.DeleteSubnetInput{SubnetId: subnet.SubnetId})
if err != nil {
return err
}
}
// Delete VPC
_, err = svc.DeleteVpc(&ec2.DeleteVpcInput{
VpcId: aws.String(vpcid),
})
if err != nil {
return err
}
return nil
}