Support Jolokia agent in proxy mode

[ppf2]

Currently, we do not support the Jolokia agent when it is run in proxy mode. There are users out there with IT restrictions and not able to get approvals for installing a direct agent so supporting the proxy mode will be helpful for these situations.

[tsg]

I wonder how come the proxy mode is not supported? Any idea on what exactly we're missing? Or is one of the limitations listed there affecting us?

[ruflin]

The reason I think it is not going to work in proxy mode is that proxy mode requires the url, username and password passed. And that is not possible in our config at the moment:

  {
    "type":"READ"
    "mbean":"java.lang:type=Threading",
    "attribute":"ThreadCount",
    "target": { 
                "url":"service:jmx:rmi:///jndi/rmi://jboss-as:8686/jmxrmi",
                "password":"admin",
                "user":"s!cr!t"
              },
  }

[ruflin]

@whale-shark Looking at this issue I saw that you did a commit referencing this issue. Does the commit you made work? If yes, any chance to contribute it back?

[whale-shark]

@ruflin Thank you for pointing out. I read a procedure and made a request. Please tell me if there is any mistake. #6475

[ruflin]

@whale-shark Awesome. Left some comments on the PR.

Are you using this code on your end in production / testing? Did you compile your own beat?

[whale-shark]

@ruflin Thank you for checking.

I built it locally on my CentOS.
I was able to get the HeapMemoryUsage from remote Java VM by using the result of building.

The bundled test did not work well from the beginning, so I could not do it.
For more details, I wrote in PR.

[balamacab]

Any binary to test it?

[ruflin]

@balamacab For a binary you would have to check out #6475 and run make or go build on your end.

[dedemorton]

@ruflin Can this issue be closed? The docs were updated with this commit. Since the options are now documented, users will expect this to be supported. Not clear to me from this exchange whether we can say that's the case.

[ruflin]

Yes, proxy mode should now be supported. @jsoriano Please correct me if that is not the case.