Sending Alert notifications via Teleram fail when Grafana instance runs on a server without direct internet access.
And there is no obvious way to define http/https proxy for Telegram in channel configuration form or ini file.
Setting proxy globally for grafana in env doesn’t look as a good solution - as far as I understand it would also cause all http-based datasource communication go through proxy too.
At the moment you cannot configure this for telegram. You have to go with configure proxy globally for grafana in env variables. See this and this issue for details.
Hi!
The situation has not changed in a year? Very topical topic - to drive all traffic through the proxy is not very convenient, you need only the alerts from the telegrams of the bot.