I have setup proxy and I can do curl/wget properly with the proxy. I have got both http and https proxy setup. I have also exported them to both lowercase and uppercase, e.g. https_proxy and HTTPS_PROXY.
But still trying to update plugin fails:
$ bin/plugin update logstash-input-beats
ERROR: Updated Aborted, message: Connection refused - Connection refused
Install works file.
Is there a way to manually download the updates locally and install it?