Kops: How to change the pod ip ranges?

[owenhaynes]

I see that each node gets assigned a range of 100.96.0.0/24 100.96.1.0/24 etc.
How do i change the ranges that get assigned to each node? can not see anything in the docs

[jkemp101test]

Here are the options I have used:

• Easiest is to use kops edit cluster after the kops create cluster to change the cidrs before you run kops update cluster
• If you are trying to automate the change I used a cheesy hack with sed by doing something like export KUBE_EDITOR="sed -e 's#100\.64\.0\.0/10#$NON_MASQ_SUBNET#g; s#10\.0\.32\.0/19#$SUBNET1#g; s#10\.0\.64\.0/19#$SUBNET2#g; s#10\.0\.96\.0/19#$SUBNET3#g' -i ''" and then running kube edit cluster
• Or you can manually manipulate the state files in S3 before running kops update cluster. This is what I am doing now.

[justinsb]

@owenhaynes why are you trying to change the node ranges? I'm not sure if you're asking about changing the /24, or the 100.96 etc...

[owenhaynes]

trying the change the 100.96, as is this not a public ip range?, and its clashing when joining two kube networks with vpn

[owenhaynes]

@jkemp101test that worked kube to delete the kubernetes svc and the kube-dns service to get things functioning again

[wangycc]

Did you find the way? I also want to change the private ip range

[chaosaffe]

Just as a note in case anyone else comes across this, 100.64.0.0/10 is assigned as Shared Address Space and is _not_ a public block.

[alex-percayso]

I have two clusters and I am trying to change the pod IP ranges also, has anyone figured out how?

[bjethwan]

Does changing the cidr makes kops select something other 100.96 for the pod network?