Linux Arc Azure Machine Agent (AMA) agent failing to send heartbeats and logs to analytics workspace

Kidd_Ip Agreed. I took a look at: /var/lib/GuestConfig/arc_policy_logs/gc_agent.log and I see this in the logs.

[2023-07-02 15:07:55.409] [PID 433] [TID 672] [Pull Client] [ERROR] [d4817f84-7e6c-42b4-8b3f-cec925205ae4] [/__w/1/s/src/dsc/gc_pullclient/dsc_pull_client.cpp:362] Failed to update assignments Error : Failed to get regional end_point info. Status Code '404'. Error Message 'Agent service endpoint returned is null or empty'.

Also see:

[2023-07-01 14:10:26.585] [PID 2684] [TID 2758] [Pull Client] [ERROR] [d0e9fdb1-b90d-4547-8846-0d47ff0603d2] [/__w/1/s/src/dsc/gc_pullclient/dsc_pull_client.cpp:362] Failed to update assignments Error : Failed to get the compute meta_data from the url : http://localhost:40342/metadata/instance?api-version=2019-03-11. Status Code '503'. Error Message '{"error":"service_unavailable","error_description":"Service not available. Check Agent log for details.","error_codes":[503],"timestamp":"2023-07-01 14:10:26.541137096 +0000 UTC m=+6.583236427","trace_id":"","correlation_id":"14a6f9a5-a63b-41c3-94a4-38bf91f87f53"}

Looks like an issue trying to pull connection details so I curled the URL in question:

curl http://localhost:40342/metadata/instance?api-version=2019-03-11

It fails with: 

{"error":"bad_request_102","error_description":"Required metadata header not specified","error_codes":[400],"timestamp":"2023-07-02 15:18:59.596985834 +0000 UTC m=+87255.848410309","trace_id":"","correlation_id":"0f54476e-39c7-44e7-9694-5d0abeffffcc"}

However; if you add the metadata header in the request it will return the correct response..

curl -H Metadata:true http://localhost:40342/metadata/instance?api-version=2019-03-11

Going to keep digging but I'm unsure if there's a setting in the config to enable setting that header?