How do I set ulimit for containers in Kubernetes?

Question

How do I set ulimit for containers in Kubernetes? (specifically ulimit -u)

Answer 1

In Kubernetes cluster (AWS EKS) you can change the ulimit for a docker container by modifying the /etc/docker/daemon.json in the node where your container is running.

Add following lines to /etc/docker/daemon.json

"default-ulimits": { "nofile": { "Name": "nofile", "Hard": 128000, "Soft": 128000 } }

and finally restart the docker service on that node by executing following command.

service docker restart