Add support for RocketChat

[n30fly]

[n30fly]

#1538

[n30fly]

@Qmando could you check this pull request?

[oleksii-boiko-ua]

it doesn't work or i'm missing something? my rule alert config section:

alert:
- "rocketchat"
rocketchat:
rocket_chat_webhook_url: "https://myhidendomain/hooks/Ddfsafasf332323Dw4Sz2ftEdcdSbdMb
Ao4b5bCBqmjcHMdasddasdQc3R"
use_kibana4_dashboard: "https://myhidendomain//app/kibana#/dashboard/"
include: ["@timestamp", "logLevel", "message"]

elastalert log:

docker[9167]: ERROR:root:Error while running alert rocketchat: Error posting to Rocket.Chat: 400 Client Error: Bad Request for url: https://myhidendomain//hooks/Ddfsafasf332323Dw4Sz2ftEdcdSbdMb
Ao4b5bCBqmjcHMdasddasdQc3R

@n30fly

[n30fly]

@alexey-boyko try this config(not need write "rocketchat:"):

alert:
- "rocketchat"
rocket_chat_webhook_url: "https://myhidendomain/hooks/Ddfsafasf332323Dw4Sz2ftEdcdSbdMbAo4b5bCBqmjcHMdasddasdQc3R"
use_kibana4_dashboard: "https://myhidendomain//app/kibana#/dashboard/"
include: ["@timestamp", "logLevel", "message"]

[oleksii-boiko-ua]

it works! thanks

[nsano-rururu]

Merged into elastalert2.