The node was low on resource: ephemeral-storage
Pods that use emptyDir volumes without storage quotas will fill up this storage, where the following error is present:
eviction manager: attempting to reclaim ephemeral-storageSet a quota limits.ephemeral-storage, requests.ephemeral-storage to limit this, as otherwise any container can write any amount of storage to its node filesystem.
A sample resource quota definition
apiVersion: v1kind: ResourceQuotametadata: name: compute-resourcesspec: hard: pods: "4" requests.cpu: "1" requests.memory: 1Gi requests.ephemeral-storage: 2Gi limits.cpu: "2" limits.memory: 2Gi limits.ephemeral-storage: 4GiAnother reason for this issue can be log files eating disk space. Check this question
You can increase the size of the EBS volume which is attached and restart the EC2 instance to get that effect.