chore: update VPN routing configuration and add Grafana VPN documentation

deployment/ansible/playbooks/monitor-grafana-live-now.yml

@@ -0,0 +1,80 @@
+---
+- name: Monitor Grafana Access Live - Check Latest Request
+  hosts: production
+  gather_facts: no
+  become: no
+
+  tasks:
+    - name: Get timestamp of last log entry
+      shell: |
+        cd ~/deployment/stacks/traefik
+        tail -1 logs/access.log | grep -oP '"time":"[^"]*"'
+      args:
+        executable: /bin/bash
+      register: last_log_time
+      ignore_errors: yes
+      failed_when: false
+
+    - name: Display last log time
+      debug:
+        msg: "{{ last_log_time.stdout }}"
+
+    - name: Get last 30 Grafana access attempts
+      shell: |
+        cd ~/deployment/stacks/traefik
+        tail -1000 logs/access.log | grep -i grafana | tail -30
+      args:
+        executable: /bin/bash
+      register: grafana_logs
+      ignore_errors: yes
+      failed_when: false
+
+    - name: Extract client IPs from last 10 Grafana requests
+      shell: |
+        cd ~/deployment/stacks/traefik
+        tail -200 logs/access.log | grep -i grafana | tail -10 | grep -oP '"ClientHost":"[^"]*"' | sed 's/"ClientHost":"//;s/"//' | sort -u
+      args:
+        executable: /bin/bash
+      register: client_ips
+      ignore_errors: yes
+      failed_when: false
+
+    - name: Display client IPs found
+      debug:
+        msg: "{{ client_ips.stdout_lines }}"
+
+    - name: Analyze last 5 Grafana requests
+      shell: |
+        cd ~/deployment/stacks/traefik
+        tail -100 logs/access.log | grep -i grafana | tail -5 | while IFS= read -r line; do
+          time=$(echo "$line" | grep -oP '"time":"[^"]*"' | sed 's/"time":"//;s/"//' | cut -d'T' -f2 | cut -d'+' -f1)
+          client=$(echo "$line" | grep -oP '"ClientHost":"[^"]*"' | sed 's/"ClientHost":"//;s/"//')
+          status=$(echo "$line" | grep -oP '"DownstreamStatus":[0-9]+' | sed 's/"DownstreamStatus"://')
+          if [[ "$client" =~ ^10\.8\.0\.[0-9]+$ ]]; then
+            echo "$time | ClientHost: $client | Status: $status ? VPN-IP"
+          elif [[ "$client" == "89.246.96.244" ]]; then
+            echo "$time | ClientHost: $client | Status: $status ? Public IP"
+          else
+            echo "$time | ClientHost: $client | Status: $status ? Unknown"
+          fi
+        done
+      args:
+        executable: /bin/bash
+      register: analysis
+      ignore_errors: yes
+      failed_when: false
+
+    - name: Display analysis
+      debug:
+        msg: "{{ analysis.stdout_lines }}"
+
+    - name: Recommendations
+      debug:
+        msg:
+          - ""
+          - "=== ERGEBNIS ==="
+          - "Wenn ClientHost: 10.8.0.7 ? Traffic kommt ?ber VPN ?"
+          - "? Dann k?nnen wir die tempor?re IP-Erlaubnis entfernen!"
+          - ""
+          - "Wenn ClientHost: 89.246.96.244 ? Traffic kommt NICHT ?ber VPN ?"
+          - "? Dann m?ssen wir weiter debuggen (Route, AllowedIPs, etc.)"