ekristen/aws-nuke

package resources

import (
    "context"

    "fmt"
    "strings"

    "github.com/aws/aws-sdk-go/aws"
    "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/nuke"
)

const EC2NetworkInterfaceResource = "EC2NetworkInterface"

func init() {
    registry.Register(&registry.Registration{
        Name:     EC2NetworkInterfaceResource,
        Scope:    nuke.Account,
        Resource: &EC2NetworkInterface{},
        Lister:   &EC2NetworkInterfaceLister{},
    })
}

type EC2NetworkInterfaceLister struct{}

func (l *EC2NetworkInterfaceLister) List(_ context.Context, o interface{}) ([]resource.Resource, error) {
    opts := o.(*nuke.ListerOpts)

    svc := ec2.New(opts.Session)

    resp, err := svc.DescribeNetworkInterfaces(nil)
    if err != nil {
        return nil, err
    }

    resources := make([]resource.Resource, 0)
    for _, out := range resp.NetworkInterfaces {
        resources = append(resources, &EC2NetworkInterface{
            svc: svc,
            eni: out,
        })
    }

    return resources, nil
}

type EC2NetworkInterface struct {
    svc *ec2.EC2
    eni *ec2.NetworkInterface
}

func (e *EC2NetworkInterface) Remove(_ context.Context) error {
    if e.eni.Attachment != nil {
        _, err := e.svc.DetachNetworkInterface(&ec2.DetachNetworkInterfaceInput{
            AttachmentId: e.eni.Attachment.AttachmentId,
            Force:        aws.Bool(true),
        })
        if err != nil {
            if e.eni.Attachment.AttachmentId != nil {
                expected := fmt.Sprintf("The interface attachment '%s' does not exist.", *e.eni.Attachment.AttachmentId)
                if !strings.Contains(err.Error(), expected) {
                    return err
                }
            }
        }
    }

    params := &ec2.DeleteNetworkInterfaceInput{
        NetworkInterfaceId: e.eni.NetworkInterfaceId,
    }

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

    return nil
}

func (e *EC2NetworkInterface) Properties() types.Properties {
    properties := types.NewProperties()
    for _, tag := range e.eni.TagSet {
        properties.SetTag(tag.Key, tag.Value)
    }
    properties.
        Set("ID", e.eni.NetworkInterfaceId).
        Set("VPC", e.eni.VpcId).
        Set("AvailabilityZone", e.eni.AvailabilityZone).
        Set("PrivateIPAddress", e.eni.PrivateIpAddress).
        Set("SubnetID", e.eni.SubnetId).
        Set("Status", e.eni.Status)
    return properties
}

func (e *EC2NetworkInterface) String() string {
    return *e.eni.NetworkInterfaceId
}