Running nitro enclaves and on Amazon EKS and getting Insufficient hugepages-2Mi on pods

0

I am following this article to use Nitro Enclaves on EKS. My pods giving me warning and stuck in pending state.

0/2 nodes are available: 2 Insufficient aws.ec2.nitro/nitro_enclaves, 2 Insufficient hugepages-2Mi. preemption: 0/2 nodes are available: 2 No preemption victims found for incoming pod..

On checking the nodes I see the following

kubectl describe node ip-x.us-east-2.compute.internal | grep -A 8 "Allocated resources:"
Allocated resources:
  (Total limits may be over 100 percent, i.e., overcommitted.)
  Resource           Requests    Limits
  --------           --------    ------
  cpu                325m (4%)   0 (0%)
  memory             140Mi (0%)  340Mi (2%)
  ephemeral-storage  0 (0%)      0 (0%)
  hugepages-1Gi      0 (0%)      0 (0%)
  hugepages-2Mi      0 (0%)      0 (0%)

kubectl describe node ip-x.us-east-2.compute.internal | grep -A 13 "Capacity:"                                                                                                                                                                                          
Capacity:
  cpu:                8
  ephemeral-storage:  83873772Ki
  hugepages-1Gi:      0
  hugepages-2Mi:      0
  memory:             15896064Ki
  pods:               29
Allocatable:
  cpu:                7910m
  ephemeral-storage:  76224326324
  hugepages-1Gi:      0
  hugepages-2Mi:      0
  memory:             14879232Ki
  pods:               29

Pod Definition Include:

"containers": [
      {
        "name": "hello-container",
        "image": "hello-f9c725ee-4d02-4f48-8c3f-f341a754061b:latest",
        "command": [
          "/home/run.sh"
        ],
        "resources": {
          "limits": {
            "aws.ec2.nitro/nitro_enclaves": "1",
            "cpu": "250m",
            "hugepages-2Mi": "100Mi"
          },
          "requests": {
            "aws.ec2.nitro/nitro_enclaves": "1",
            "cpu": "250m",
            "hugepages-2Mi": "100Mi"
          }
        },

Things I have tried: Tried Vertical and horizontal scaling and also restarting the kubelet service after reading a couple of other articles, but with no success, and pods are still stuck in a pending state.

AWS
asked 5 months ago311 views
1 Answer
0

It's quite likely that the nitro-enclaves-allocator service was not configured and enabled, as discussed in the documentation. You'll need to configure the Instance Launch Template as described there. See https://docs.aws.amazon.com/enclaves/latest/user/kubernetes.html#create-lt for details.

AWS
EXPERT
answered 5 months ago

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