Webhook fails when metadata.annotations is missing

[jclab-joseph]

When a Pod has no metadata.annotations, fails because /metadata/annotations does not exist, causing ReplicaSet Pod creation to fail with:

Warning FailedCreate 2s (x15 over 84s) replicaset-controller Error creating: Internal error occurred: add operation does not apply: doc is missing path: "/metadata/annotations/original-configuration": missing value

related code:

attachment/docker/openappsec-waf-webhook/webhook_server.py

Line 767 in 2f46293

patches.append({