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88 lines
2.6 KiB
Bash
88 lines
2.6 KiB
Bash
#!/bin/bash
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# Pfade definieren
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CONFIG_DIR="/config"
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CONFIG_FILE="$CONFIG_DIR/watchdog.conf"
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STATE_FILE="$CONFIG_DIR/watch_state.json"
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# 1. Prüfen, ob das Config-Verzeichnis existiert
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if [ ! -d "$CONFIG_DIR" ]; then
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echo "Fehler: Verzeichnis $CONFIG_DIR nicht gefunden!"
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exit 1
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fi
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# 2. Config laden
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if [ -f "$CONFIG_FILE" ]; then
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source "$CONFIG_FILE"
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else
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echo "Fehler: $CONFIG_FILE nicht gefunden!"
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exit 1
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fi
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# 3. msmtp Konfiguration dynamisch schreiben
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# (Nutzt die Variablen aus der watchdog.conf)
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cat <<EOF > /etc/msmtprc
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defaults
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auth on
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tls on
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tls_trust_file /etc/ssl/certs/ca-certificates.crt
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logfile /var/log/msmtp.log
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account default
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host $SMTP_HOST
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port $SMTP_PORT
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from $EMAIL_FROM
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user $SMTP_USER
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password $SMTP_PASS
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EOF
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chmod 600 /etc/msmtprc
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# 4. State-Datei initialisieren falls nötig
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if [ ! -f "$STATE_FILE" ] || [ ! -s "$STATE_FILE" ]; then
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echo "{}" > "$STATE_FILE"
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fi
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UPDATES_FOUND=""
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# --- Logik-Schleife ---
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for entry in "${TARGETS[@]}"; do
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IFS="|" read -r TYPE REPO EXTRA <<< "$entry"
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# Key-Generierung (Punkte und Slashes durch Unterstrich ersetzen)
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KEY="${TYPE}_${REPO//[\/\.]/_}_${EXTRA}"
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# Alten Wert aus der JSON im /config/ Ordner lesen
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OLD_VAL=$(jq -r ".[\"$KEY\"] // empty" "$STATE_FILE")
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NEW_VAL=""
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if [ "$TYPE" == "DOCKER" ]; then
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NEW_VAL=$(curl -s "https://hub.docker.com/v2/repositories/${REPO}/tags/${EXTRA}" | jq -r '.last_updated // empty')
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elif [ "$TYPE" == "GITHUB" ]; then
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NEW_VAL=$(curl -s "https://api.github.com/repos/${REPO}/branches/${EXTRA}" | jq -r '.commit.sha // empty')
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fi
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# Validierung der API-Antwort
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if [ -z "$NEW_VAL" ] || [ "$NEW_VAL" == "null" ]; then
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echo "⚠️ Konnte Daten für $REPO ($EXTRA) nicht abrufen."
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continue
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fi
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# Vergleich
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if [ -n "$OLD_VAL" ] && [ "$OLD_VAL" != "$NEW_VAL" ]; then
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MSG="Update für $REPO ($EXTRA)! Alt: $OLD_VAL | Neu: $NEW_VAL"
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echo "🔔 $MSG"
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UPDATES_FOUND="${UPDATES_FOUND}${MSG}\n"
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else
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echo "✅ $REPO ($EXTRA) ist aktuell."
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fi
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# Neuen Wert in die JSON im /config/ Ordner schreiben
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TEMP_JSON=$(jq ".[\"$KEY\"] = \"$NEW_VAL\"" "$STATE_FILE")
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echo "$TEMP_JSON" > "$STATE_FILE"
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done
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# 5. Mail versenden, falls Updates gefunden wurden
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if [ -n "$UPDATES_FOUND" ]; then
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echo -e "Subject: Watchdog Alert - Neue Versionen gefunden\nFrom: $EMAIL_FROM\nTo: $EMAIL_TO\n\nFolgende Änderungen wurden erkannt:\n\n$UPDATES_FOUND" | msmtp "$EMAIL_TO"
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echo "Info: Benachrichtigung an $EMAIL_TO versendet."
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fi |