[PROD] [CUSTOMER] Have several health checks in one rest calls

[chibenwa]

Why ?

K8S allows only a single liveness probe

But as an admin I would like to combine several healthchecks (IMAP checks, Cassandra checks) behind a liveness probe which today cannot be achieved.

How?

Be able to pass an optional query parameter to /healtchcheck specifying which checks to execute

curl 127.0.0.1:8000/healthcheck?checks=RabbitMQJmapEventBusDeadLetterQueueHealthCheck+OpenSearch%20Backend

Would execute and aggregate only those 2 checks

[hungphan227]

pr https://github.com/apache/james-project/pull/2399

[vttranlina]

curl 127.0.0.1:8000/healthcheck?checks=RabbitMQJmapEventBusDeadLetterQueueHealthCheck+OpenSearch%20Backend

I think we can use a standard of http request when check is a array the syntax should be check=RabbitMQJmapEventBusDeadLetterQueueHealthCheck&check=OpenSearch%20Backend

[chibenwa]

I think we can use a standard of http request

Indeed!