ekristen/aws-nuke

package resources

import (
    "context"

    "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 EC2SubnetResource = "EC2Subnet"

func init() {
    registry.Register(&registry.Registration{
        Name:     EC2SubnetResource,
        Scope:    nuke.Account,
        Resource: &EC2Subnet{},
        Lister:   &EC2SubnetLister{},
        DependsOn: []string{
            EC2NetworkInterfaceResource,
        },
    })
}

type EC2Subnet struct {
    svc        *ec2.EC2
    subnet     *ec2.Subnet
    defaultVPC bool
}

type EC2SubnetLister struct{}

func (l *EC2SubnetLister) List(_ context.Context, o interface{}) ([]resource.Resource, error) {
    opts := o.(*nuke.ListerOpts)

    svc := ec2.New(opts.Session)

    params := &ec2.DescribeSubnetsInput{}
    resp, err := svc.DescribeSubnets(params)
    if err != nil {
        return nil, err
    }

    defVpcID := ""
    if defVpc := DefaultVpc(svc); defVpc != nil {
        defVpcID = *defVpc.VpcId
    }

    resources := make([]resource.Resource, 0)
    for _, out := range resp.Subnets {
        resources = append(resources, &EC2Subnet{
            svc:        svc,
            subnet:     out,
            defaultVPC: defVpcID == *out.VpcId,
        })
    }

    return resources, nil
}

func (e *EC2Subnet) Remove(_ context.Context) error {
    params := &ec2.DeleteSubnetInput{
        SubnetId: e.subnet.SubnetId,
    }

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

    return nil
}

func (e *EC2Subnet) Properties() types.Properties {
    properties := types.NewProperties()

    properties.Set("DefaultForAz", e.subnet.DefaultForAz)
    properties.Set("DefaultVPC", e.defaultVPC)
    properties.Set("OwnerID", e.subnet.OwnerId)
    properties.Set("VpcID", e.subnet.VpcId)

    for _, tagValue := range e.subnet.Tags {
        properties.SetTag(tagValue.Key, tagValue.Value)
    }

    return properties
}

func (e *EC2Subnet) String() string {
    return *e.subnet.SubnetId
}