Problem installing plugin

Elastic Stack Logstash
1

I just installed logstash from the latest tar.gz file 5.2.2 is the version number.

I have searched the forum and seen this eror come up a few time but no solution were proposed.

So I installed logstash and I need 2 plugin that are not buddled with it.

logstash-input-zeromq
logstash-output-syslog

The syslog plugin installed just fine, but the zeromq one gives me an error.

Plugin version conflict, aborting
ERROR: Installation Aborted, message: Bundler could not find compatible versions for gem "logstash-core":
  In snapshot (Gemfile.lock):
    logstash-core (= 5.2.2)

  In Gemfile:
    logstash-core-plugin-api (>= 0) java depends on
      logstash-core (= 5.2.2) java

    logstash-input-zeromq (>= 0) java depends on
      logstash-core (< 2.0.0, >= 1.4.0) java

    logstash-core (>= 0) java

Then list a truck load of plugin and their dependencies, but they are all fine, then it finishes up with pretty much the same thing.

Running `bundle update` will rebuild your snapshot from scratch, using only
the gems in your Gemfile, which may resolve the conflict.
Bundler could not find compatible versions for gem "logstash":
  In Gemfile:
    logstash-input-zeromq (>= 0) java depends on
      logstash (< 2.0.0, >= 1.4.0) java
Could not find gem 'logstash (< 2.0.0, >= 1.4.0) java', which is required by gem 'logstash-input-zeromq (>= 0) java', in any of the sources.

It looks like its not compatible with logstash 5.2.2
Like its looking for logstash-core < 2.0.0 if im reading right.

Im not familiar with ruby and gems so I'm having a hard time figuring out how to fix this.
Can someone help?

2

I looked at the code from github to see if I could understand whats wrong.

And found this in the file logstash-input-zeromq.gemspec

s.add_runtime_dependency "logstash-core-plugin-api", ">= 1.60", "<= 2.99"

I guess that since logstash has jumped to version 5.2 that this should read

s.add_runtime_dependency "logstash-core-plugin-api", ">= 1.60", "<= 5.99"

Unfortunately I tried to follow the guide to test and compile custom plugin and didn't manage to be succesful. ( Bottom of the page readme.md https://github.com/logstash-plugins/logstash-input-zeromq )

Does anyone have a better guide for this?
How to compile and run your own plugin ?

3

I saw this issue which is with logstash-filter-zeromq but has a very similar problem.

Unfortunately the solution is exactly what im trying to do, that is recompile locally the plugin.

Sooo still stuck at the same place, I need to recompile and I dont know where to start.