Jenkinsfile: use pg_virtualenv to isolate test database (#31437)

jenkins.sh

@@ -11,4 +11,4 @@ done
 
 virtualenv venv
 venv/bin/pip install tox
-venv/bin/tox -rv
+pg_virtualenv venv/bin/tox -rv

tests/settings.py

@@ -9,13 +9,18 @@ PASSWORD_HASHERS = ['django.contrib.auth.hashers.UnsaltedMD5PasswordHasher'] + l
 A2_CACHE_ENABLED = False
 
 LANGUAGE_CODE = 'en'
+
 DATABASES = {
     'default': {
         'ENGINE': os.environ.get('DB_ENGINE', 'django.db.backends.sqlite3'),
-        'TEST': {
-            'NAME': 'a2-test-%s' % os.environ.get("BRANCH_NAME", "").replace('/', '-'),
-        },
+        'NAME': 'authentic2',
     }
 }
 
+if 'postgres' in DATABASES['default']['ENGINE']:
+    for key in ('PGPORT', 'PGHOST', 'PGUSER', 'PGPASSWORD'):
+        if key in os.environ:
+            DATABASES['default'][key[2:]] = os.environ[key]
+
+
 ALLOWED_HOSTS = ALLOWED_HOSTS + ['example.net', 'cache1.example.com', 'cache2.example.com']

tox.ini

@@ -23,6 +23,10 @@ setenv =
   reusedb: REUSEDB=--reuse-db
   A2_TESTS=tests
   oldldap: A2_TESTS=tests/test_ldap.py
+  PGPORT={env:PGPORT:}
+  PGHOST={env:PGHOST:}
+  PGUSER={env:PGUSER:}
+  PGPASSWORD={env:PGPASSWORD:}
 usedevelop =
   coverage: True
   nocoverage: False