Hi @emladenov 

As far as csi-Unity is concerned -Unity does not support configuration to choose specifically First of Second Network Interface. 

 It is the underlying operating system that decides on which interface to route the traffic. Kindly check   Network addresses under the host object on Unity array if both NIC are added by the driver.

Regards

Thar_J

 

Hello,

I'd like to share the workaround that I know.
Unity CSI Driver creates hosts in Unity based on the hostname of the OS and node's name of K8S.
So you can use IPs of other network interfaces, not first interface.

1. You have to add the domain name of the network you want to allow access to /etc/hosts of the OS(Worker Nodes).
2. And then you have to delete pods of unity node plugin. (Before deleting the pods, You must delete the host information that was previously generated by Unity CSI in Unity Unisphere.)

Here's an example for your reference.

- Worker Node Name : k8s-worker01.yourdomain.com
- First network interface's IP : 192.168.0.100
- Second network interface's IP : 172.31.0.100

*** You have to add the hostname including the hostname of worker node. ***

/etc/hosts
192.168.0.100    k8s-worker01.yourdomain.com
172.31.0.100      k8s-worker01-storage.yourdomain.com

 

I hope that this is helpful for you.

But note that this is not a official solution.

Hello chesed82, Thar_J

 

Thanks to both of you for the comments.Both were very useful.

The solution that helped in our case was to add the ip address of the second network interface in Unity Web Interface -> Hosts -> edit host -> Network adresses and then with "+" we added the desired IP address.

Best regards,

Emiliyan Mladenov