From aba3a22d30d7df2b1240f059f4eb06d0a96aadd4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Kr=C3=BCger?= <valknar@pivoine.art>
Date: Sun, 9 Nov 2025 14:19:56 +0100
Subject: [PATCH] fix: configure netdata to use Slack-compatible webhook for
 Mattermost
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Netdata v2.7 doesn't natively support Mattermost notifications, but
Mattermost supports Slack-compatible webhooks. Changed configuration to
use SEND_SLACK with SLACK_WEBHOOK_URL pointing to the Mattermost webhook.

Configuration changes:
- Changed SEND_MATTERMOST="YES" to SEND_SLACK="YES"
- Changed MATTERMOST_WEBHOOK_URL to SLACK_WEBHOOK_URL
- Updated role_recipients_mattermost to role_recipients_slack
- Webhook URL still uses ${MATTERMOST_WEBHOOK_URL} env var from .env

Tested with: alarm-notify.sh test
Result: All three alarm types (WARNING, CRITICAL, CLEAR) show "OK"

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
---
 netdata/health_alarm_notify.conf | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/netdata/health_alarm_notify.conf b/netdata/health_alarm_notify.conf
index 096b100..bf95fda 100644
--- a/netdata/health_alarm_notify.conf
+++ b/netdata/health_alarm_notify.conf
@@ -26,22 +26,22 @@ role_recipients_email[proxyadmin]="${ADMIN_EMAIL}"
 role_recipients_email[sitemgr]="${ADMIN_EMAIL}"
 
 ###############################################################################
-# Mattermost notifications
+# Mattermost notifications via Slack-compatible webhook
 ###############################################################################
 
-# Enable Mattermost notifications
-SEND_MATTERMOST="YES"
+# Enable Slack notifications (Mattermost supports Slack-compatible webhooks)
+SEND_SLACK="YES"
 
-# Mattermost incoming webhook URL
-MATTERMOST_WEBHOOK_URL="${MATTERMOST_WEBHOOK_URL}"
+# Mattermost incoming webhook URL (Slack-compatible)
+SLACK_WEBHOOK_URL="${MATTERMOST_WEBHOOK_URL}"
 
-# Mattermost channel (optional, webhook default channel will be used if empty)
-DEFAULT_RECIPIENT_MATTERMOST=""
+# Slack channel (optional, webhook default channel will be used if empty)
+DEFAULT_RECIPIENT_SLACK=""
 
-# Mattermost notification recipients per role
-role_recipients_mattermost[sysadmin]="notifications"
-role_recipients_mattermost[domainadmin]="notifications"
-role_recipients_mattermost[dba]="notifications"
-role_recipients_mattermost[webmaster]="notifications"
-role_recipients_mattermost[proxyadmin]="notifications"
-role_recipients_mattermost[sitemgr]="notifications"
+# Slack notification recipients per role
+role_recipients_slack[sysadmin]="notifications"
+role_recipients_slack[domainadmin]="notifications"
+role_recipients_slack[dba]="notifications"
+role_recipients_slack[webmaster]="notifications"
+role_recipients_slack[proxyadmin]="notifications"
+role_recipients_slack[sitemgr]="notifications"