ekristen/aws-nuke

package resources

import (
    "context"
    "fmt"

    "github.com/aws/aws-sdk-go/service/ec2"

    "github.com/ekristen/libnuke/pkg/registry"
    "github.com/ekristen/libnuke/pkg/resource"
    "github.com/ekristen/libnuke/pkg/types"

    "github.com/ekristen/aws-nuke/v3/pkg/awsutil"
    "github.com/ekristen/aws-nuke/v3/pkg/nuke"
)

const EC2TGWResource = "EC2TGW"

func init() {
    registry.Register(&registry.Registration{
        Name:     EC2TGWResource,
        Scope:    nuke.Account,
        Resource: &EC2TGW{},
        Lister:   &EC2TGWLister{},
        DependsOn: []string{
            EC2TGWAttachmentResource,
        },
    })
}

type EC2TGWLister struct{}

func (l *EC2TGWLister) List(_ context.Context, o interface{}) ([]resource.Resource, error) {
    opts := o.(*nuke.ListerOpts)

    svc := ec2.New(opts.Session)

    params := &ec2.DescribeTransitGatewaysInput{}
    resources := make([]resource.Resource, 0)
    for {
        resp, err := svc.DescribeTransitGateways(params)
        if err != nil {
            return nil, err
        }

        for _, tgw := range resp.TransitGateways {
            resources = append(resources, &EC2TGW{
                svc: svc,
                tgw: tgw,
            })
        }

        if resp.NextToken == nil {
            break
        }

        params = &ec2.DescribeTransitGatewaysInput{
            NextToken: resp.NextToken,
        }
    }

    return resources, nil
}

type EC2TGW struct {
    svc *ec2.EC2
    tgw *ec2.TransitGateway
}

func (e *EC2TGW) Remove(_ context.Context) error {
    params := &ec2.DeleteTransitGatewayInput{
        TransitGatewayId: e.tgw.TransitGatewayId,
    }

    _, err := e.svc.DeleteTransitGateway(params)
    if err != nil {
        return err
    }

    return nil
}

func (e *EC2TGW) Filter() error {
    if *e.tgw.State == awsutil.StateDeleted {
        return fmt.Errorf("already deleted")
    }

    return nil
}

func (e *EC2TGW) Properties() types.Properties {
    properties := types.NewProperties()
    for _, tagValue := range e.tgw.Tags {
        properties.SetTag(tagValue.Key, tagValue.Value)
    }
    properties.
        Set("ID", e.tgw.TransitGatewayId).
        Set("OwnerId", e.tgw.OwnerId)

    return properties
}

func (e *EC2TGW) String() string {
    return *e.tgw.TransitGatewayId
}