remove obsolete env var SWEEPERS_IAM_ROLE_NAME

src/pds/registrysweepers/utils/db/client.py

@@ -17,18 +17,13 @@ def get_opensearch_client_from_environment(verify_certs: bool = True) -> OpenSea
     # TODO: consider re-working these environment variables at some point
 
     endpoint_url_env_var_key = "PROV_ENDPOINT"
-    userpass_env_var_key = "PROV_CREDENTIALS"
-    iam_role_env_var_key = "SWEEPERS_IAM_ROLE_NAME"
 
     endpoint_url = os.environ.get(endpoint_url_env_var_key) or None
     if endpoint_url is None:
         raise EnvironmentError(f'env var "{endpoint_url_env_var_key}" is required')
 
-    creds_str = os.environ.get("PROV_CREDENTIALS") or None
-    iam_role_name = os.environ.get(iam_role_env_var_key) or None
+    creds_str = os.environ.get("PROV_CREDENTIALS", None)
 
-    if creds_str is not None and iam_role_name is not None:
-        raise EnvironmentError(f'Only one of env vars ["{userpass_env_var_key}", "{iam_role_env_var_key}"] may be set')
     if creds_str is not None:
         try:
             creds_dict = json.loads(creds_str)
@@ -38,10 +33,8 @@ def get_opensearch_client_from_environment(verify_certs: bool = True) -> OpenSea
             raise ValueError(f'Failed to parse username/password from PROV_CREDENTIALS value "{creds_str}": {err}')
 
         return get_userpass_opensearch_client(endpoint_url, username, password, verify_certs)
-    elif iam_role_name is not None:
-        return get_aws_aoss_client_from_ssm(endpoint_url)
     else:
-        raise EnvironmentError(f'One of env vars ["{userpass_env_var_key}", "{iam_role_env_var_key}"] must be set')
+        return get_aws_aoss_client_from_ssm(endpoint_url)
 
 
 def get_userpass_opensearch_client(