Infinite loop between Adapater and Router when the cert given to the router is unavailable

[suksw]

Description:

When

• a cert file path or
• a inline cert file

is provided to the router by the adapter

• if the file cannot be found (not mounted or different name) or
• the format is not supported (expected pem found der)

the adapter and router runs in a continuous loop. Following log is for the scenario when the inline cert is not in a supported format.

NOTE: Cert type checks already exists for interceptor and backend certs. Yet, there can be other scenarios that this could occur.

Steps to reproduce:

Affected Product Version:

Environment details (with versions):

• OS:
• Client:
• Env (Docker/K8s):

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