Feature: added request signing support for Huawei cloud service API

[haihongren]

Feature: Huawei Cloud Service API Signer support

• Huawei Cloud Service API requires:

  1. The request to be timestamped and signed using their API secret
  2. The signed signatures to be included in the request header

• This feature added hw_signer section to support this requirement.

    hw_signer:
      key: <YOUR Huawei API KEY>
      secret: <YOUR Huawei API secret>

• Sample Huawei integration yml

The following example shows how to collect req_hit_rate metric.

name: huaweiCloud
global:
  base_url: https://cdn.myhuaweicloud.com/v1.0/cdn/statistics/domain-summary?&domain_name=<YOUR DOMAIN>&stat_type=
  headers:
    accept: application/json
variable_store:
  startDatetime: ${timestamp:ms-1h}
  endDatetime: ${timestamp:ms}
  params: >
    &start_time=${var:startDatetime}&end_time=${var:endDatetime}&service_area=outside_mainland_china
  key: <YOUR HUAWEI API KEY>
  secret: <YOUR HUAWEI SECRET>

apis:
  - name: huaweiCloud
    event_type: huaweiCloudSample
    url: req_hit_rate${var:params}
    hw_signer:
      key: ${var:key}
      secret: ${var:secret}

[carlosroman]

Any chance we could get some tests for this?

[haihongren]

@carlosroman added test code for the signer. Thanks!

[brushknight]

LGTM