add Final Infrastructure Setup

infrastructure/ansible/roles/network_simulation/tasks/main.yml

@@ -0,0 +1,64 @@
+---
+- name: "Szenario-Info: {{ network_scenarios[scenario].description }}"
+  debug:
+    msg: "Activating Szenario '{{ scenario }}'"
+
+# --- 1. CLEANUP
+
+- name: Stop Flapping Service (falls aktiv)
+  systemd:
+    name: flapping_simulation
+    state: stopped
+    enabled: no
+  ignore_errors: true
+
+- name: Reset Traffic Control
+  shell: "tc qdisc del dev {{ item }} root"
+  loop: [ens4, ens5, ens6]
+  ignore_errors: true
+  changed_when: false
+
+- name: Reset IPTables Blocks
+  iptables:
+    chain: FORWARD
+    action: flush
+  changed_when: false
+
+# --- 2. INSTALL FLAPPING
+
+- name: Installing Flapping script & service
+  block:
+    - template:
+        src: flapping_service.sh.j2
+        dest: /usr/local/bin/flapping_simulation.sh
+        mode: "0755"
+    - template:
+        src: flapping.service.j2
+        dest: /etc/systemd/system/flapping_simulation.service
+    - systemd:
+        name: flapping_simulation
+        state: started
+        daemon_reload: yes
+  when: network_scenarios[scenario].flapping_enabled | default(false)
+
+# --- 3. APPLY TRAFFIC CONTROL
+
+- name: Apply Complex TC Rules
+  shell: >
+    tc qdisc add dev {{ item.0.key }} 
+    {% if item.1.root | default(false) %}root{% else %}parent {{ item.1.parent }}{% endif %}
+    {% if item.1.handle is defined %}handle {{ item.1.handle }}{% endif %}
+    {{ item.1.type }} 
+    {{ item.1.args }}
+  loop: "{{ network_scenarios[scenario].interfaces | default({}) | dict2items | subelements('value') }}"
+  when: network_scenarios[scenario].interfaces is defined
+
+# --- 4. APPLY IPTABLES BLOCKS ---
+
+- name: Apply Static Blocks
+  iptables:
+    chain: FORWARD
+    in_interface: "{{ item.src }}"
+    out_interface: "{{ item.dst }}"
+    jump: DROP
+  loop: "{{ network_scenarios[scenario].blocks | default([]) }}"