Fix Postcommit Python Arm workflow (#33849)

* Fix Postcommit Python Arm workflow

* formatting

.github/workflows/beam_PostCommit_Python_Arm.yml

@@ -55,7 +55,7 @@ env:
 jobs:
   beam_PostCommit_Python_Arm:
     name: ${{ matrix.job_name }} (${{ matrix.job_phrase }} ${{ matrix.python_version }})
-    runs-on: [self-hosted, ubuntu-20.04, main]
+    runs-on: ubuntu-22.04
     timeout-minutes: 240
     strategy:
       fail-fast: false
@@ -84,6 +84,12 @@ jobs:
         run: |
           sudo curl -L https://github.com/docker/compose/releases/download/1.22.0/docker-compose-$(uname -s)-$(uname -m) -o /usr/local/bin/docker-compose
           sudo chmod +x /usr/local/bin/docker-compose
+      - name: Authenticate on GCP
+        uses: google-github-actions/setup-gcloud@v0
+        with:
+          service_account_email: ${{ secrets.GCP_SA_EMAIL }}
+          service_account_key: ${{ secrets.GCP_SA_KEY }}
+          export_default_credentials: true
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v2
       - name: GCloud Docker credential helper

sdks/python/apache_beam/io/gcp/healthcare/dicomio_integration_test.py

@@ -62,6 +62,7 @@
 META_DATA_REFINED_NAME = 'Dicom_io_it_test_refined_data.json'
 NUM_INSTANCE = 18
 RAND_LEN = 15
+SCOPES = ['https://www.googleapis.com/auth/cloud-platform']
 
 
 def random_string_generator(length):
@@ -72,7 +73,7 @@ def random_string_generator(length):
 
 def create_dicom_store(project_id, dataset_id, region, dicom_store_id):
   # Create a an empty DICOM store
-  credential, _ = default()
+  credential, _ = default(SCOPES)
   session = requests.AuthorizedSession(credential)
   api_endpoint = "{}/projects/{}/locations/{}".format(
       HEALTHCARE_BASE_URL, project_id, region)
@@ -88,7 +89,7 @@ def create_dicom_store(project_id, dataset_id, region, dicom_store_id):
 
 def delete_dicom_store(project_id, dataset_id, region, dicom_store_id):
   # Delete an existing DICOM store
-  credential, _ = default()
+  credential, _ = default(SCOPES)
   session = requests.AuthorizedSession(credential)
   api_endpoint = "{}/projects/{}/locations/{}".format(
       HEALTHCARE_BASE_URL, project_id, region)
@@ -108,7 +109,7 @@ def get_gcs_file_http(file_name):
   api_endpoint = "{}/b/{}/o/{}?alt=media".format(
       GCS_BASE_URL, BUCKET_NAME, file_name)
 
-  credential, _ = default()
+  credential, _ = default(SCOPES)
   session = requests.AuthorizedSession(credential)
 
   response = session.get(api_endpoint)
@@ -209,8 +210,10 @@ def test_dicom_store_instance_from_gcs(self):
           results, equal_to(expected_output), label='store first assert')
 
     # Check the metadata using client
+    credential, _ = default(SCOPES)
     result, status_code = DicomApiHttpClient().qido_search(
-      self.project, REGION, DATA_SET_ID, self.temp_dicom_store, 'instances'
+      self.project, REGION, DATA_SET_ID,
+      self.temp_dicom_store, 'instances', credential=credential
     )
 
     self.assertEqual(status_code, 200)