I'm currently using 10.222.0.0/16 network for my pods on a single node cluster test environment.
When I reboot the machine or redeploy pods they get the first ip address which has not been used previously. I want to prevent this from happening by assigning static ips for pods with calico.
How can I achieve this?
Generally that approach would be against the dynamic nature of Kubernetes' IP layer. However, there is a solution found in the Project Calico docs:
Choose the IP address for a pod instead of allowing Calico to choose automatically.
Bear in mind that:
You must be using the Calico IPAM.
If you are not sure, ssh to one of your Kubernetes nodes and examine the CNI configuration.
cat /etc/cni/net.d/10-calico.conflistLook for the entry:
"ipam": { "type": "calico-ipam" },If it is present, you are using the Calico IPAM. If the IPAM is set to something else, or the 10-calico.conflist file does not exist, you cannot use these features in your cluster.