Change to proper env var

Signed-off-by: Derek Ho <dxho@amazon.com>

.github/workflows/integration.yml

@@ -28,7 +28,7 @@ jobs:
     runs-on: ubuntu-latest
     env:
       OPENSEARCH_URL: 'https://admin:myStrongPassword123!@localhost:9200'
-      ADMIN_PASSWORD: 'myStrongPassword123!'
+      OPENSEARCH_INITIAL_ADMIN_PASSWORD: 'myStrongPassword123!'
     strategy:
       fail-fast: false
       matrix:

test_opensearchpy/test_async/test_server/__init__.py

@@ -39,7 +39,7 @@ async def asyncSetUp(
         self,
     ) -> None:
         # pylint: disable=invalid-name,missing-function-docstring
-        password = os.environ.get("ADMIN_PASSWORD", "admin")
+        password = os.environ.get("OPENSEARCH_INITIAL_ADMIN_PASSWORD", "admin")
         self.client = await get_test_client(
             verify_certs=False, http_auth=("admin", password)
         )

test_opensearchpy/test_async/test_server_secured/test_security_plugin.py

@@ -43,7 +43,7 @@ class TestSecurityPlugin(IsolatedAsyncioTestCase):
 
     async def asyncSetUp(self) -> None:
         # pylint: disable=invalid-name, missing-function-docstring
-        password = os.environ.get("ADMIN_PASSWORD", "admin")
+        password = os.environ.get("OPENSEARCH_INITIAL_ADMIN_PASSWORD", "admin")
         self.client = await get_test_client(
             verify_certs=False, http_auth=("admin", password)
         )

test_opensearchpy/test_server_secured/test_security_plugin.py

@@ -37,7 +37,7 @@ class TestSecurityPlugin(TestCase):
     USER_CONTENT = {"password": "opensearchpy@123", "opendistro_security_roles": []}
 
     def setUp(self) -> None:
-        password = os.environ.get("ADMIN_PASSWORD", "admin")
+        password = os.environ.get("OPENSEARCH_INITIAL_ADMIN_PASSWORD", "admin")
         self.client = get_test_client(verify_certs=False, http_auth=("admin", password))
         add_connection("default", self.client)