Comment 2 for bug 1372710

The request getting sent to keystone looks like this:

{
  "ec2Credentials": {
    "body_hash": "7998222ff85406cf40991aa7e77fc63d5e91743ef474f8d876560f612c0e9028",
    "path": "/v1/",
    "signature": "347dcd4f3c9556d014234dc57e125167eb598a57883c53db207b26ba3c64d091",
    "params": {
      "Action": "PutMetricData",
      "Version": "2010-08-01",
      "MetricData.member.1.MetricName": "Heartbeat",
      "MetricData.member.1.Value": "1",
      "MetricData.member.1.Unit": "Counter",
      "Namespace": "system/linux"
    },
    "verb": "POST",
    "host": "192.168.200.1:8003",
    "headers": {
      "Authorization": "AWS4-HMAC-SHA256 Credential=aaa8ddeb9c5b40b6ad5a03812ad4dd1e/20140922/168/192/aws4_request,SignedHeaders=host;x-amz-date,Signature=347dcd4f3c9556d014234dc57e125167eb598a57883c53db207b26ba3c64d091",
      "Content-Type": "application/x-www-form-urlencoded; charset=UTF-8",
      "X-Amz-Date": "20140922T205704Z",
      "Host": "192.168.200.1:8003",
      "User-Agent": "Boto/2.32.1 Python/2.7.5 Linux/3.15.10-200.fc20.x86_64",
      "Accept-Encoding": "identity",
      "Content-Length": "166"
    },
    "access": "aaa8ddeb9c5b40b6ad5a03812ad4dd1e"
  }
}