Failed to pull image with failed to verify certificate error in OpenShift 4 when using a proxy

Solution Unverified - Updated -


  • Images fail to pull with the following error message shown in the events:

    Failed to pull image "": rpc error: code = Unknown desc = pinging container registry Get "": tls: failed to verify certificate: x509: certificate signed by unknown authority
  • The Proxy CA is configured in the proxy resource of the cluster, and a curl to the registry via the Proxy is working properly, but the images are not pulled with above message.


  • Red Hat OpenShift Container Platform (RHOCP)
    • 4
  • Proxy

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