def METHOD_NAME(ansible_module, ds_instance):
    """
    :id: 9f691554-51d9-40c3-b6b6-c538a509dcfc
    :Title: Test pki-server db-upgrade command when instance is down.
    :Requirement: Pki Server Db
    :CaseComponent: \-
    :Setup: Use the subsystems setup in ansible to run subsystem commands
    :Steps:
    :ExpectedResult:
        1. Verify whether pki-server db-upgrade command do not upgrade the pki server database
            while directory server instance is down.
    """
    # Store commands in veriables.
    db_upgrade = 'pki-server db-upgrade -i {} ca'.format(constants.CA_INSTANCE_NAME)
    cmd_output = ansible_module.command(db_upgrade)
    for result in cmd_output.values():
        if result['rc'] == 0:
            assert "Upgrade complete" in result['stdout']
        else:
            pytest.xfail("Failed to run pki-server db-upgrade command.")