get private keys as env var

evreal_cred.json

@@ -0,0 +1,13 @@
+{
+  "type": "service_account",
+  "project_id": "evreal",
+  "private_key_id": "***",
+  "private_key": "***",
+  "client_email": "[email protected]",
+  "client_id": "112071584481993672650",
+  "auth_uri": "https://accounts.google.com/o/oauth2/auth",
+  "token_uri": "https://oauth2.googleapis.com/token",
+  "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs",
+  "client_x509_cert_url": "https://www.googleapis.com/robot/v1/metadata/x509/evreal%40evreal.iam.gserviceaccount.com",
+  "universe_domain": "googleapis.com"
+}

gdrive.py

@@ -1,4 +1,5 @@
 import os
+import json
 
 from pydrive2.auth import GoogleAuth
 from pydrive2.drive import GoogleDrive
@@ -9,7 +10,10 @@ def login_with_service_account():
     scope = ["https://www.googleapis.com/auth/drive"]
     gauth = GoogleAuth()
     gauth.auth_method = 'service'
-    gauth.credentials = ServiceAccountCredentials.from_json_keyfile_name('evreal-bf06ca1ac056.json', scope)
+    cred_dict = json.load(open('evreal_cred.json', 'r'))
+    cred_dict['private_key_id'] = os.environ['PRIVATE_KEY_ID']
+    cred_dict['private_key'] = os.environ['PRIVATE_KEY'].replace('\\n', '\n')
+    gauth.credentials = ServiceAccountCredentials.from_json_keyfile_dict(cred_dict, scope)
     return gauth