Imports github.com/aws/amazon-ecs-agent/agent/logger github.com/aws/amazon-ecs-agent/agent/utils/ttime github.com/aws/aws-sdk-go/aws/credentials github.com/aws/aws-sdk-go/aws/signer/v4 Standard library imports crypto/rand encoding/binary encoding/hex encoding/json errors fmt io io/ioutil math math/big math/rand net/http reflect regexp strconv strings time