K8S: When Namespace Isolation enabled VN not getting deleted

[chhandak]

When Namespace Isolation enabled (Per VN one Namespace), deleting the namespace is not deleting virtual-network its has created in contrail-api-server. Observed this issue with Build 3060.

As per kubectl output
----------------------
[root@5b7s18 ~]# kubectl get namespace
NAME STATUS AGE
default Active 5d
kube-public Active 5d
kube-system Active 5d

As per API server output (All this namespace is deleted from kubernetes)
-----------------------------

[root@5b7s18 ~]# curl http://10.87.121.34:8082/virtual-networks| python -m json.tool | grep -A 3 "fq_name"
  % Total % Received % Xferd Average Speed Time Time Time Current
                                 Dload Upload Total Spent Left Speed
100 10370 100 10370 0 0 1082k 0 --:--:-- --:--:-- --:--:-- 1265k
            "fq_name": [
                "default-domain",
                "default",
                "ctest-namespace-19031491-vn"
--
            "fq_name": [
                "default-domain",
                "default",
                "ctest-namespace-28682780-vn"
--
            "fq_name": [
                "default-domain",
                "default",
                "ctest-namespace-43483425-vn"
--
            "fq_name": [
                "default-domain",
                "default",
                "ctest-namespace-23836598-vn"
--
            "fq_name": [
                "default-domain",
                "default",
                "__public__"
--
            "fq_name": [
                "default-domain",
                "default",
                "ctest-namespace-13478818-vn"
--
            "fq_name": [
                "default-domain",
                "default",
                "ctest-namespace-68187624-vn"
--

[Dinesh Bakiaraj (dineshb)]

https://review.opencontrail.org/#/c/31458/