Imports
- github.com/aws/aws-sdk-go/aws
- github.com/aws/aws-sdk-go/aws/client
- github.com/aws/aws-sdk-go/aws/request
- github.com/aws/aws-sdk-go/aws/session
- github.com/aws/aws-sdk-go/service/route53
- github.com/xenolf/lego/challenge/dns01
- github.com/xenolf/lego/platform/config/env
- github.com/xenolf/lego/platform/wait