Migrated from multi repos to monorepo architecture.

2026-05-02 12:52:08 +02:00
parent 72668492f5
commit 73adb395c0
218 changed files with 9639 additions and 57 deletions
@@ -0,0 +1,130 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.numbus-server.services.disk-space-checker;
+
+  disk_space_notifier = pkgs.writeScript "disk-space-notifier.sh" ''
+    #!${pkgs.bash}/bin/bash
+
+    ALERT_FILE="/var/lib/numbus-server/disk_alert.env"
+    if [ ! -f "$ALERT_FILE" ]; then
+      exit 0
+    fi
+
+    source "$ALERT_FILE"
+    rm "$ALERT_FILE"
+
+    # Update the timestamp for this specific path to prevent spamming
+    SAFE_PATH=$(echo "$DISK_ALERT_PATH" | tr '/' '_')
+    date +%s > "/var/lib/numbus-server/last_alert_$SAFE_PATH.ts"
+
+    ADMIN_EMAIL="${config.numbus-server.mail.adminAddress}"
+    USER_EMAIL="${config.numbus-server.mail.userAddress}"
+    OWNER_NAME="${config.numbus-server.owner}"
+
+    SUBJECT="Numbus Server Alert: Low Disk Space Detected"
+
+    TECH_BODY="
+    Disk Space Alert:
+    Server owner: $OWNER_NAME
+
+    The following mount point has exceeded the safety threshold:
+    Mount: $DISK_ALERT_PATH
+    Usage: $DISK_ALERT_USAGE%
+
+    Full partition details:
+    $(df -h "$DISK_ALERT_PATH")
+
+    Action required: Please investigate and clear space or expand the storage capacity.
+    "
+
+    FRIENDLY_BODY="Cher/Chère $OWNER_NAME,
+
+    L'espace de stockage de votre serveur Numbus est presque saturé.
+    Disque concerné : $DISK_ALERT_PATH ($DISK_ALERT_USAGE% utilisé)
+
+    Votre administrateur a été notifié avec les détails techniques.
+    Nous vous conseillons d'éviter d'ajouter des fichiers volumineux pour garantir le bon fonctionnement de vos services.
+    Contactez votre administrateur afin d'évoquer les possibilités d'expansion du stockage.
+    "
+
+    printf "Subject: [ADMIN] %s\n\n%s" "$SUBJECT" "$TECH_BODY" | /run/wrappers/bin/sendmail -t "$ADMIN_EMAIL"
+    printf "Subject: [Alerte] Espace disque presque saturé sur votre serveur Numbus\n\n%s\n\nMerci de votre confiance,\nL'équipe de support,\nNumbus-Server." "$FRIENDLY_BODY" | /run/wrappers/bin/sendmail -t "$USER_EMAIL"
+  '';
+
+  disk_space_checker = pkgs.writeScript "disk-space-checker.sh" ''
+    #!${pkgs.bash}/bin/bash
+    
+    # Safety threshold in percentage
+    THRESHOLD=90
+    # Paths to monitor (Root and MergerFS data pool)
+    PATHS=("/" "/mnt/data")
+    ALERT_FILE="/var/lib/numbus-server/disk_alert.env"
+
+    for path in "''${PATHS[@]}"; do
+      # Skip if path does not exist (e.g. if mergerfs is not mounted yet)
+      if [ ! -d "$path" ]; then
+        continue
+      fi
+      
+      # Anti-spam logic: Check if we alerted on this path recently (7 days = 604800 seconds)
+      SAFE_PATH=$(echo "$path" | tr '/' '_')
+      TS_FILE="/var/lib/numbus-server/last_alert_$SAFE_PATH.ts"
+      NOW=$(date +%s)
+
+      if [ -f "$TS_FILE" ]; then
+        LAST_SENT=$(cat "$TS_FILE")
+        DIFF=$((NOW - LAST_SENT))
+        if [ "$DIFF" -lt 604800 ]; then
+          echo "Alert for $path was sent recently. Skipping notification to avoid spam."
+          continue
+        fi
+      fi
+
+      # Extract usage percentage using df
+      USAGE=$(df -h "$path" | awk 'NR==2 {print $5}' | sed 's/%//')
+      
+      if [ "$USAGE" -ge "$THRESHOLD" ]; then
+        echo "DISK_ALERT_PATH=$path" > "$ALERT_FILE"
+        echo "DISK_ALERT_USAGE=$USAGE" >> "$ALERT_FILE"
+        
+        echo "Threshold exceeded for $path ($USAGE%). Triggering notification."
+        
+        # Trigger the notification service
+        /run/current-system/sw/bin/systemctl start disk-space-notifier.service
+        
+        # We exit after the first alert to avoid multiple overlapping emails in one run
+        exit 0
+      fi
+    done
+  '';
+in
+
+{ 
+  config = mkIf cfg.enable {
+    systemd.services.disk-space-notifier = {
+      description = "Email notification for low disk space";
+      serviceConfig = {
+        Type = "oneshot";
+        ExecStart = "${disk_space_notifier}";
+      };
+    };
+    systemd.services.disk-space-checker = {
+      description = "Check for low disk space";
+      serviceConfig = {
+        Type = "oneshot";
+        ExecStart = "${disk_space_checker}";
+      };
+    };
+    systemd.timers.disk-space-checker = {
+      description = "Run disk space check every day";
+      timerConfig = {
+        OnCalendar = "daily";
+        Persistent = true;
+      };
+      wantedBy = [ "timers.target" ];
+    };
+  };
+}