Mattermost-server: Improve logs for Mattermost Push Proxy

[mattermod]

The purpose of Mattermost Push Proxy is to be the relay between Mattermost servers and the Apple/Google push notification services.

This ticket is about to add logging for push proxy and uses the structured logging similar we have for mattermost server. See https://github.com/mattermost/mattermost-server/tree/master/mlog

see here the way we configure log: https://github.com/mattermost/mattermost-server/blob/master/app/server.go#L178

The code for the Mattermost Push Proxy is here https://github.com/mattermost/mattermost-push-proxy.

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JIRA: https://mattermost.atlassian.net/browse/MM-19315

[attilamolnar]

Hey, I'll take care of this one

[nandhithakamal]

If this is still up for grabs, can I pick this one?

[agnivade]

Hello @nandhithakamal - how is it going with this one? Let us know if we can help in any way.