From 7b2c202acc487c3f5e312cbb97040c12cd70db6d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Kr=C3=BCger?= <valknar@pivoine.art>
Date: Sat, 8 Nov 2025 19:27:06 +0100
Subject: [PATCH] feat: add msmtp to Netdata for email alerts
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Created custom Dockerfile for Netdata container that includes msmtp
and msmtp-mta packages for sending email notifications.

Changes:
- Added netdata/Dockerfile extending netdata/netdata:latest
- Installed msmtp, msmtp-mta, and ca-certificates via apk
- Set proper permissions (600) for msmtprc config file
- Updated compose.yaml to build from custom Dockerfile

This enables Netdata to send health alarm notifications via email
using the IONOS SMTP configuration in msmtprc.

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

Co-Authored-By: Claude <noreply@anthropic.com>
---
 netdata/Dockerfile   | 8 ++++++++
 netdata/compose.yaml | 3 +++
 2 files changed, 11 insertions(+)
 create mode 100644 netdata/Dockerfile

diff --git a/netdata/Dockerfile b/netdata/Dockerfile
new file mode 100644
index 0000000..afd4edc
--- /dev/null
+++ b/netdata/Dockerfile
@@ -0,0 +1,8 @@
+# Dockerfile for Netdata with msmtp support for email alerts
+FROM netdata/netdata:latest
+
+# Install msmtp for sending emails
+RUN apk add --no-cache msmtp msmtp-mta ca-certificates
+
+# Set proper permissions for msmtp config
+RUN chmod 600 /etc/msmtprc || true
diff --git a/netdata/compose.yaml b/netdata/compose.yaml
index 3491a35..0b774a0 100644
--- a/netdata/compose.yaml
+++ b/netdata/compose.yaml
@@ -1,5 +1,8 @@
 services:
   netdata:
+    build:
+      context: .
+      dockerfile: Dockerfile
     image: ${NETDATA_IMAGE:-netdata/netdata:latest}
     container_name: ${NETDATA_COMPOSE_PROJECT_NAME}_app
     restart: unless-stopped