Getting errors when running under kubernetes

[Jaff]

Webhook 2.8.0 on alpine linux, I am seeing this in the logs:

time="2023-01-19T22:55:57Z" level=info msg="[webhook] 2023/01/19 22:55:57 [327c11] incoming HTTP GET request from 10.191.146.98:48272" job=webhook pid=19 
time="2023-01-19T22:55:57Z" level=info msg="[webhook] 2023/01/19 22:55:57 [327c11] health got matched" job=webhook pid=19 
time="2023-01-19T22:55:57Z" level=info msg="[webhook] 2023/01/19 22:55:57 [327c11] error parsing body payload due to unsupported content type header: " job=webhook pid=19 
time="2023-01-19T22:55:57Z" level=info msg="[webhook] 2023/01/19 22:55:57 [327c11] health hook triggered successfully" job=webhook pid=19 
time="2023-01-19T22:55:57Z" level=info msg="[webhook] 2023/01/19 22:55:57 [327c11] executing /app/webhook-linux-amd64/hooks/health.sh (/app/webhook-linux-amd64/hooks/health.sh) with arguments ["/app/webhook-linux-amd64/hooks/health.sh"] and environment [] using  as cwd" job=webhook pid=19 
time="2023-01-19T22:55:57Z" level=info msg="[webhook] 2023/01/19 22:55:57 [327c11] command output: cat: /tmp/curl-response: No such file or directory" job=webhook pid=19 
time="2023-01-19T22:55:57Z" level=info msg="http error: 000" job=webhook pid=19 
time="2023-01-19T22:55:57Z" level=info msg="    reason: " job=webhook pid=19 
time="2023-01-19T22:55:57Z" level=info msg="    " job=webhook pid=19 
time="2023-01-19T22:55:57Z" level=info job=webhook pid=19 
time="2023-01-19T22:55:57Z" level=info msg="[webhook] 2023/01/19 22:55:57 [327c11] error occurred: exit status 1" job=webhook pid=19 
time="2023-01-19T22:55:57Z" level=info msg="[webhook] 2023/01/19 22:55:57 [327c11] finished handling health" job=webhook pid=19 
time="2023-01-19T22:55:57Z" level=info msg="[webhook] 2023/01/19 22:55:57 [327c11] 500 | 91 B | 12.190129ms | 10.191.145.179:40202 | GET /health" job=webhook pid=19 

Observing logs on server running in docker container on flatcar-linux (like coreos) 2905.2.5

time="2023-01-20T06:52:04Z" level=info msg="[webhook] 2023/01/20 06:52:04 [fb01d1] health got matched" job=webhook pid=17 
time="2023-01-20T06:52:04Z" level=info msg="[webhook] 2023/01/20 06:52:04 [fb01d1] health hook triggered successfully" job=webhook pid=17 
time="2023-01-20T06:52:04Z" level=info msg="[webhook] 2023/01/20 06:52:04 [fb01d1] executing /app/webhook-linux-amd64/hooks/health.sh (/app/webhook-linux-amd64/hooks/health.sh) with arguments ["/app/webhook-linux-amd64/hooks/health.sh"] and environment [] using  as cwd" job=webhook pid=17 
time="2023-01-20T06:52:04Z" level=info msg="[webhook] 2023/01/20 06:52:04 [fb01d1] finished handling health" job=webhook pid=17 
time="2023-01-20T06:52:04Z" level=info msg="[webhook] 2023/01/20 06:52:04 [fb01d1] 200 | 4 B | 27.804287ms | 10.195.84.172:40202 | GET /health" job=webhook pid=17 

Any clues on what is happening here?