Open zhangzujian opened 1 month ago
We can add a OVN LR static route:
IPv4 Routes Route Table <main>: 10.96.0.10 99.99.99.2 dst-ip
Add add the service ip of kube-dns service to the vpc dns pod:
$ ip addr show 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet 10.96.0.10/32 scope global lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 16: eth0@if17: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1400 qdisc noqueue state UP group default link/ether 6e:11:47:10:5c:3b brd ff:ff:ff:ff:ff:ff link-netnsid 0 inet 99.99.99.2/24 brd 99.99.99.255 scope global eth0 valid_lft forever preferred_lft forever inet6 fe80::6c11:47ff:fe10:5c3b/64 scope link valid_lft forever preferred_lft forever 18: net1@if19: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1400 qdisc noqueue state UP group default link/ether e6:55:33:e9:90:c7 brd ff:ff:ff:ff:ff:ff link-netnsid 0 inet 10.16.0.8/16 brd 10.16.255.255 scope global net1 valid_lft forever preferred_lft forever inet6 fe80::e455:33ff:fee9:90c7/64 scope link valid_lft forever preferred_lft forever
Now DNS works well with the default dns server:
root@vpc-pod-56tx2:/kube-ovn# nslookup kubernetes.default Server: 10.96.0.10 Address: 10.96.0.10#53 Name: kubernetes.default.svc.cluster.local Address: 10.96.0.1
Currently, we need to specify a VIP for the vpc dns and pod/vm must set their dns server to the vip.
With this feature, pod/vm can access the vpc dns without changing their dns config.
No response
Another solution is that setting the default dns vip to the kube-dns service ip.
@bobz965 What do you think?
@zhangzujian setting the default dns vip to the kube-dns service ip It is a good idea.
setting the default dns vip to the kube-dns service ip
Description
We can add a OVN LR static route:
Add add the service ip of kube-dns service to the vpc dns pod:
Now DNS works well with the default dns server:
Who will benefit from this feature?
Currently, we need to specify a VIP for the vpc dns and pod/vm must set their dns server to the vip.
With this feature, pod/vm can access the vpc dns without changing their dns config.
Anything else?
No response