Run 3rd-party test suites without excess dependences

- each test method is parametrized with ENV_NAME to
  get unique names in JUnit reports for different
  configurations

Change-Id: I8db671d1687f287dc8ca97782cd7bbdf0eaef988
diff --git a/jobs/pipelines/swarm-run-pytest.groovy b/jobs/pipelines/swarm-run-pytest.groovy
index 52dd25d..553b8a2 100644
--- a/jobs/pipelines/swarm-run-pytest.groovy
+++ b/jobs/pipelines/swarm-run-pytest.groovy
@@ -53,6 +53,7 @@
                     export ${it}_installed=true"""}.join("\n")
 
                 shared.run_cmd(sources + installed + """
+                    export TESTS_CONFIGS=${ENV_NAME}_salt_deployed.ini
                     export MANAGER=devops  # use 'hardware' fixture to manage fuel-devops environment
                     export salt_master_host=\$SALT_MASTER_IP  # skip salt_deployed fixture
                     export salt_master_port=6969