The rollback function must be defined right after the action. It is not linked to the exception raised. Signed-off-by: Aline Manera <alinefm(a)linux.vnet.ibm.com&gt; --- src/kimchi/model/networks.py | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/src/kimchi/model/networks.py b/src/kimchi/model/networks.py index 73e7ace..0ea9449 100644 --- a/src/kimchi/model/networks.py +++ b/src/kimchi/model/networks.py @@ -216,12 +216,11 @@ class NetworksModel(object): 'err': error_msg}) with RollbackContext() as rollback: - try: vlan_tagged_br = conn.interfaceDefineXML(br_xml, 0) + rollback.prependDefer(vlan_tagged_br.destroy) vlan_tagged_br.create(0) except libvirt.libvirtError as e: - rollback.prependDefer(vlan_tagged_br.destroy) raise OperationFailed(e.message) else: return br_name -- 1.9.3