[jira] [Created] (NIFIREG-443) Provide a status API endpoint

["Guillaume Lhermenier (Jira)" <ji...@apache.org>]

Guillaume Lhermenier created NIFIREG-443:
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             Summary: Provide a status API endpoint 
                 Key: NIFIREG-443
                 URL: https://issues.apache.org/jira/browse/NIFIREG-443
             Project: NiFi Registry
          Issue Type: New Feature
    Affects Versions: 0.8.0
            Reporter: Guillaume Lhermenier


As Nifi registry exposes an API, it should be really helpful to also expose a status/healthcheck endpoint.

 When deploying a nifi-registry in any cloud provider, I think almost nobody wants to parse something like
{code:bash}
[root@nifireg bin]# ./nifi-registry.sh  status
nifi-registry.sh: JAVA_HOME not set; results may vary

Java home:
NiFi Registry home: /opt/nifi-registry-0.8.0

Bootstrap Config File: /opt/nifi-registry-0.8.0/conf/bootstrap.conf

2021-03-08 13:30:51,178 INFO [main] o.apache.nifi.registry.bootstrap.Command Apache NiFi Registry is currently running, listening to Bootstrap on port 35989, PID=635

{code}
 A simple
{code:java}
/status{code}
endpoint returning whether the nifi registry is running fine or not should be sufficient.

Also, if it could be UNsecured (not sure we should have to handle certs to just know if the service is running or not.), it could be veeeeeery well.



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