Document overriding server_name with config/ENV

[francisdb]

We are running our apps in docker and the server_name that is picked up is just a unique id for the docker container. It would be great if we could customize that field.

This has been available in raven-js for a while by setting serverName
getsentry/sentry-javascript#404

[kamilogorek]

@francisdb you can already do this, by setting name attribute during config phase or SENTRY_NAME env variable.

raven-node/lib/client.js

Line 52 in 98353fa

this.name = options.name || process.env.SENTRY_NAME || require('os').hostname();

raven-node/lib/client.js

Line 247 in 98353fa

kwargs.server_name = kwargs.server_name || this.name;

[francisdb]

Docs could be better on this, at least mention server_name like it is visible in the sentry ui. The docs currently mention SENTRY_NAME and point to some non-existing python documentation link
https://docs.sentry.io/clients/node/config/

[kamilogorek]

Updated the issue. Thanks for pointing that out.

[kamilogorek]

Addressed in #377