Developer Debugs Persistent 502 Errors on Apigee X Eval Org Caused by Provisioning Flaws

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A developer encountered persistent 502 Server Errors on a freshly provisioned Apigee X evaluation organization, despite the Cloud Console showing all setup steps as successful. Investigation revealed the provisioning wizard had created an instance template without an attached service account and left a required ENDPOINT metadata key blank, preventing VMs from authenticating or forwarding traffic. The fix involved cloning the broken instance template with the correct service account, migrating the managed instance group to it, and manually patching the ENDPOINT metadata before rerunning the startup script. Earlier complications arose when a misparented second Google Cloud project caused a resource-lock error that stalled the original Apigee setup, prompting a full restart in a clean project. The author advises using separate browser profiles when managing multiple Cloud Console projects simultaneously, as tab-based navigation can cause UI state to bleed across sessions.

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