ekristen/aws-nuke

package resources

import (
    "context"
    "time"

    "github.com/gotidy/ptr"

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

    "github.com/aws/aws-sdk-go/service/dynamodb"
    "github.com/aws/aws-sdk-go/service/dynamodb/dynamodbiface"

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

const DynamoDBBackupResource = "DynamoDBBackup"

func init() {
    registry.Register(&registry.Registration{
        Name:     DynamoDBBackupResource,
        Scope:    nuke.Account,
        Resource: &DynamoDBBackup{},
        Lister:   &DynamoDBBackupLister{},
    })
}

type DynamoDBBackupLister struct {
    mockSvc dynamodbiface.DynamoDBAPI
}

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

    var svc dynamodbiface.DynamoDBAPI
    if l.mockSvc != nil {
        svc = l.mockSvc
    } else {
        svc = dynamodb.New(opts.Session)
    }

    resources := make([]resource.Resource, 0)

    var lastEvaluatedBackupArn *string

    for {
        backupsResp, err := svc.ListBackups(&dynamodb.ListBackupsInput{
            ExclusiveStartBackupArn: lastEvaluatedBackupArn,
        })
        if err != nil {
            return nil, err
        }

        for _, backup := range backupsResp.BackupSummaries {
            resources = append(resources, &DynamoDBBackup{
                svc:        svc,
                arn:        backup.BackupArn,
                Name:       backup.BackupName,
                CreateDate: backup.BackupCreationDateTime,
                TableName:  backup.TableName,
            })
        }

        if backupsResp.LastEvaluatedBackupArn == nil {
            break
        }

        lastEvaluatedBackupArn = backupsResp.LastEvaluatedBackupArn
    }

    return resources, nil
}

type DynamoDBBackup struct {
    svc        dynamodbiface.DynamoDBAPI
    arn        *string
    Name       *string
    CreateDate *time.Time
    TableName  *string
}

func (r *DynamoDBBackup) Remove(_ context.Context) error {
    params := &dynamodb.DeleteBackupInput{
        BackupArn: r.arn,
    }

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

    return nil
}

func (r *DynamoDBBackup) Properties() types.Properties {
    return types.NewPropertiesFromStruct(r)
}

func (r *DynamoDBBackup) String() string {
    return ptr.ToString(r.Name)
}