Arangodeployment can't start on GKE Autopilot since init container is OOMkilled

[vismiktor]

Due to Autopilot autoscaler is setting memory limits to what requests are for a pod an init container with 10Mi memory request is OOMkilled continuously. This prevents any arangodb pod start on GKE running in Autopilot mode.

[ajanikow]

Hello!

Can you share which initContainera have issues?

We will check code for missing limits. And update this ticket

Best Regards,
Adam

[vismiktor]

Hi Adam! Thanks for swift reply!
The limits are there. The issue is - Autopilot doesn't take limits which are set into consideration, unless there's no requests.
https://cloud.google.com/kubernetes-engine/docs/concepts/autopilot-resource-requests#resource-limits
I think the name of the container is uuid
here is how autopilot.gke.io/resource-adjustment annotation looks like (check out input and output for the container):

{
    "input": {
        "initContainers": [
            {
                "name": "init-lifecycle"
            },
            {
                "limits": {
                    "cpu": "100m",
                    "memory": "50Mi"
                },
                "requests": {
                    "cpu": "100m",
                    "memory": "10Mi"
                },
                "name": "uuid"
            },
            {
                "requests": {
                    "memory": "2Gi"
                },
                "name": "version-check"
            }
        ],
        "containers": [
            {
                "requests": {
                    "memory": "2Gi"
                },
                "name": "server"
            }
        ]
    },
    "output": {
        "initContainers": [
            {
                "limits": {
                    "cpu": "500m",
                    "ephemeral-storage": "1Gi",
                    "memory": "2Gi"
                },
                "requests": {
                    "cpu": "500m",
                    "ephemeral-storage": "1Gi",
                    "memory": "2Gi"
                },
                "name": "init-lifecycle"
            },
            {
                "limits": {
                    "cpu": "100m",
                    "ephemeral-storage": "1Gi",
                    "memory": "10Mi"
                },
                "requests": {
                    "cpu": "100m",
                    "ephemeral-storage": "1Gi",
                    "memory": "10Mi"
                },
                "name": "uuid"
            },
            {
                "limits": {
                    "cpu": "500m",
                    "ephemeral-storage": "1Gi",
                    "memory": "2Gi"
                },
                "requests": {
                    "cpu": "500m",
                    "ephemeral-storage": "1Gi",
                    "memory": "2Gi"
                },
                "name": "version-check"
            }
        ],
        "containers": [
            {
                "limits": {
                    "cpu": "500m",
                    "ephemeral-storage": "1Gi",
                    "memory": "2Gi"
                },
                "requests": {
                    "cpu": "500m",
                    "ephemeral-storage": "1Gi",
                    "memory": "2Gi"
                },
                "name": "server"
            }
        ]
    },
    "modified": true
}