Introduce --verbose_gcp_api flag to dump GCP requests and responses

[sergiitk]

Create a new flag --verbose_gcp_api that enables GCP API verbose logging (requests and responses) by setting the value of global googleapiclient.model.dump_request_response. See googleapiclient.model.BaseModel._log_request, and other _log_request methods in the same file.

[sergiitk]

Tests:

• grpc/java/v1.64.x/branch/xds_k8s_lb
• grpc/java/v1.64.x/branch/xds_k8s_lb - PSM_EXTRA_FLAGS="--verbose_gcp_api"

[sergiitk]

cc @larry-safran

[sergiitk]

Log example:

I0521 17:02:49.408864 135099804438528 compute.py:543] Creating compute resource:
---
defaultService: [https://www.googleapis.com/compute/v1/projects/grpc-testing/global/backendServices/psm-interop-backend-service-20240521-1701-arknl](https://www.google.com/url?q=https://www.googleapis.com/compute/v1/projects/grpc-testing/global/backendServices/psm-interop-backend-service-20240521-1701-arknl&sa=D)
hostRules:
- hosts:
  - psm-grpc-server:46408
  pathMatcher: psm-interop-path-matcher-20240521-1701-arknl
name: psm-interop-url-map-20240521-1701-arknl
pathMatchers:
- defaultService: [https://www.googleapis.com/compute/v1/projects/grpc-testing/global/backendServices/psm-interop-backend-service-20240521-1701-arknl](https://www.google.com/url?q=https://www.googleapis.com/compute/v1/projects/grpc-testing/global/backendServices/psm-interop-backend-service-20240521-1701-arknl&sa=D)
  name: psm-interop-path-matcher-20240521-1701-arknl
...

I0521 17:02:49.409166 135099804438528 model.py:113] --request-start--
I0521 17:02:49.409238 135099804438528 model.py:114] -headers-start-
I0521 17:02:49.409284 135099804438528 model.py:116] accept: application/json
I0521 17:02:49.409329 135099804438528 model.py:116] accept-encoding: gzip, deflate
I0521 17:02:49.409385 135099804438528 model.py:116] user-agent: (gzip)
I0521 17:02:49.409424 135099804438528 model.py:116] x-goog-api-client: gdcl/1.12.11 gl-python/3.10.12
I0521 17:02:49.409460 135099804438528 model.py:116] content-type: application/json
I0521 17:02:49.409494 135099804438528 model.py:117] -headers-end-
I0521 17:02:49.409528 135099804438528 model.py:118] -path-parameters-start-
I0521 17:02:49.409571 135099804438528 model.py:120] project: grpc-testing
I0521 17:02:49.409606 135099804438528 model.py:121] -path-parameters-end-
I0521 17:02:49.409640 135099804438528 model.py:122] body: {"name": "psm-interop-url-map-20240521-1701-arknl", "defaultService": "[https://www.googleapis.com/compute/v1/projects/grpc-testing/global/backendServices/psm-interop-backend-service-20240521-1701-arknl](https://www.google.com/url?q=https://www.googleapis.com/compute/v1/projects/grpc-testing/global/backendServices/psm-interop-backend-service-20240521-1701-arknl&sa=D)", "hostRules": [{"hosts": ["psm-grpc-server:46408"], "pathMatcher": "psm-interop-path-matcher-20240521-1701-arknl"}], "pathMatchers": [{"name": "psm-interop-path-matcher-20240521-1701-arknl", "defaultService": "[https://www.googleapis.com/compute/v1/projects/grpc-testing/global/backendServices/psm-interop-backend-service-20240521-1701-arknl](https://www.google.com/url?q=https://www.googleapis.com/compute/v1/projects/grpc-testing/global/backendServices/psm-interop-backend-service-20240521-1701-arknl&sa=D)"}]}
I0521 17:02:49.409683 135099804438528 model.py:123] query: ?alt=json
I0521 17:02:49.409717 135099804438528 model.py:124] --request-end--
I0521 17:02:50.252444 135099804438528 model.py:192] --response-start--
I0521 17:02:50.252697 135099804438528 model.py:194] content-type: application/json; charset=UTF-8
I0521 17:02:50.252766 135099804438528 model.py:194] vary: Origin, X-Origin, Referer
I0521 17:02:50.252812 135099804438528 model.py:194] date: Tue, 21 May 2024 17:02:50 GMT
I0521 17:02:50.252854 135099804438528 model.py:194] server: ESF
I0521 17:02:50.252890 135099804438528 model.py:194] cache-control: private
I0521 17:02:50.252925 135099804438528 model.py:194] x-xss-protection: 0
I0521 17:02:50.252958 135099804438528 model.py:194] x-frame-options: SAMEORIGIN
I0521 17:02:50.252993 135099804438528 model.py:194] x-content-type-options: nosniff
I0521 17:02:50.253026 135099804438528 model.py:194] transfer-encoding: chunked
I0521 17:02:50.253059 135099804438528 model.py:194] status: 200
I0521 17:02:50.253095 135099804438528 model.py:194] content-length: 686
I0521 17:02:50.253133 135099804438528 model.py:194] -content-encoding: gzip
I0521 17:02:50.253167 135099804438528 model.py:196] b'{\n  "kind": "compute#operation",\n  "id": "3637086710034165078",\n  "name": "operation-1716310969436-618f9c9a84a6e-cac6d6a2-0ee6d67e",\n  "operationType": "insert",\n  "targetLink": "[https://www.googleapis.com/compute/v1/projects/grpc-testing/global/urlMaps/psm-interop-url-map-20240521-1701-arknl](https://www.google.com/url?q=https://www.googleapis.com/compute/v1/projects/grpc-testing/global/urlMaps/psm-interop-url-map-20240521-1701-arknl&sa=D)",\n  "targetId": "3842519063135874390",\n  "status": "RUNNING",\n  "user": "830293263384-compute@developer.gserviceaccount.com",\n  "progress": 0,\n  "insertTime": "2024-05-21T10:02:50.021-07:00",\n  "startTime": "2024-05-21T10:02:50.031-07:00",\n  "selfLink": "[https://www.googleapis.com/compute/v1/projects/grpc-testing/global/operations/operation-1716310969436-618f9c9a84a6e-cac6d6a2-0ee6d67e](https://www.google.com/url?q=https://www.googleapis.com/compute/v1/projects/grpc-testing/global/operations/operation-1716310969436-618f9c9a84a6e-cac6d6a2-0ee6d67e&sa=D)"\n}\n'
I0521 17:02:50.253211 135099804438528 model.py:197] --response-end--