Imports github.com/docker/go/canonical/json github.com/go-kit/kit/log/level github.com/WatchBeam/clock github.com/go-kit/kit/log github.com/pkg/errors Standard library imports crypto/x509 encoding/base64 encoding/json fmt hash crypto/sha512 encoding/pem crypto crypto/subtle crypto/ecdsa bytes crypto/sha256 io io/ioutil math/big net/http net/url os path path/filepath regexp strings sync time