Peter Gyori created NIFI-7922:
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Summary: Add support for GET request in ListenHTTP for health check
Key: NIFI-7922
URL: https://issues.apache.org/jira/browse/NIFI-7922
Project: Apache NiFi
Issue Type: Improvement
Components: Extensions
Reporter: Peter Gyori
Assignee: Peter Gyori
Add support for GET request in ListenHTTP processor, so that when put behind a
load balancer, the LB can make a health check to verify that the service is
available.
The health check service should be available on
<ListenHTTP_service_URI>/healthcheck.
It should be available via the listening port specified in the processor's
property, but it should optionally be configured to be available on a different
port.
Accessing the health check service via a dedicated port should use 1-way SSL at
most, even if the main service uses 2-way SSL, since some load balancers do not
support client certificate handling:
- If the processor is set not to use SSL, SSL should not be used on the health
check port, either.
- If the processor is set to use one-way SSL, one-way SSL should be used on
the health check port.
- If the processor is set to use two-way SSL, one-way SSL should be used on
the health check port.
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