This is what you will get:
You need:
- The incoming webhook URL as given by slack.com. You can use the same on all your netdata servers (or you can have multiple if you like - your decision).
- One or more channels to post the messages to.
Get them here: https://api.slack.com/incoming-webhooks
Set them in /etc/netdata/health_alarm_notify.conf (to edit it on your system run /etc/netdata/edit-config health_alarm_notify.conf), like this:
###############################################################################
# sending slack notifications
# note: multiple recipients can be given like this:
# "RECIPIENT1 RECIPIENT2 ..."
# enable/disable sending pushover notifications
SEND_SLACK="YES"
# Login to slack.com and create an incoming webhook.
# You need only one for all your netdata servers.
# Without it, netdata cannot send slack notifications.
SLACK_WEBHOOK_URL="https://hooks.slack.com/services/XXXXXXXX/XXXXXXXX/XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
# if a role's recipients are not configured, a notification will be send to:
# - A slack channel (syntax: '#channel' or 'channel')
# - A slack user (syntax: '@user')
# - The channel or user defined in slack for the webhook (syntax: '#')
# empty = do not send a notification for unconfigured roles
DEFAULT_RECIPIENT_SLACK="alarms"
You can define multiple recipients like this: # #alarms systems @myuser.
This example will send the alarm to:
- The recipient defined in slack for the webhook (not known to netdata)
- The channel 'alarms'
- The channel 'systems'
- The user @myuser
You can give different recipients per role using these (at the same file):
role_recipients_slack[sysadmin]="systems"
role_recipients_slack[dba]="databases systems"
role_recipients_slack[webmaster]="marketing development"