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Non-deterministic failure of EtcdCluster deployment in air-gapped on-prem environments #107

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@ytsarev

Description

During on-prem tests we encountered a situation during EtcdCluster creation with etcd-operator is not picking up the overridden private registry image reference and still tries to pull quay.io/coreos/etcd during cluster creation.

In one cluster it 'fixed' itself automatically by redeployment in another cluster the issue persisted so we had to manually patch EtcdCluster resource.

Definitely worth investigation as it can complicate on-prem installations.

Also we need to figure out if the problem affects only 1.14 cluster deployment workaround ( see https://github.com/AbsaOSS/ohmyglb/blob/master/Makefile#L114 ) or it is also a case for standard stable deployment target ( https://github.com/AbsaOSS/ohmyglb/blob/master/Makefile#L104 )

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