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Intermittent ImagePullFailed during OCP VM provisioning using ontap s3 over HTTP

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Category:
ontap-9
Specialty:
nas
Last Updated:

Applies to

  • ONTAP S3
  • ONTAP 9.13.1P8
  • Red Hat Open Shift

Issue

During VM provisioning in OpenShift Container Platform (OCP), the following error is intermittently observed:

Warning ImagePullFailed <controller pod name in OpenShift> Unable to process data: Unable to transfer source data to scratch space: failed to pull image: read tcp <OCP Node IP>:<Port>-><ONTAP S3 endpoint>:80: read: connection reset by peer

Key Observations:

  • Access from Linux systems using AWS CLI over both HTTP and HTTPS works without issues
  • The same image objects can be successfully downloaded via AWS CLI over HTTP
  • The issue is observed only during VM provisioning in OCP and only when using HTTP
  • HTTPS access from OCP does not show this issue
  • The issue is intermittent and does not follow a consistent pattern
  • Packet trace logs show that the ONTAP S3 server responded to the pull request with an HTTP/1.1 403 Forbidden error

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