Configuration to be added to existing commands.cfg. This tells how to use the slack_nagios.sh script.

commands.cfg

###############################
# Slack notifications
###############################

# 'notify-service-by-slack' command definition
define command {
       command_name     notify-service-by-slack
       command_line      /usr/local/bin/slack_nagios.sh > /tmp/slack.log 2>&1
       }

# 'notify-host-by-slack' command definition
define command {
       command_name     notify-host-by-slack
       command_line      /usr/local/bin/slack_nagios.sh > /tmp/slack.log 2>&1
       }