Imports github.com/aws/aws-sdk-go/aws golang.org/x/crypto/ssh github.com/pkg/sftp github.com/aws/aws-sdk-go/aws/awserr github.com/aws/aws-sdk-go/aws/session github.com/aws/aws-sdk-go/service/s3 github.com/golang/glog k8s.io/kops/util/pkg/hashing Standard library imports bytes encoding/hex fmt io io/ioutil math/rand net/http net/url os path strings sync