Initial commit - Security operations and hardening tools

- Added Ansible playbooks for security hardening (UFW, Fail2Ban)
- Implemented SSH key management and host synchronization tools
- Created UFW hardening scripts and network security configurations
- Added Cockpit-Traefik reverse proxy setup documentation

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

Co-Authored-By: Claude <noreply@anthropic.com>

ufw-harden-playbook.yml

@@ -0,0 +1,34 @@
+---
+- name: Deploy and Execute UFW Hardening Script
+  hosts: all
+  become: true
+  vars:
+    ufw_script_path: /tmp/harden-ufw.sh
+
+  tasks:
+    - name: Copy UFW hardening script to remote hosts
+      copy:
+        src: harden-ufw.sh
+        dest: "{{ ufw_script_path }}"
+        owner: root
+        group: root
+        mode: '0755'
+
+    - name: Execute UFW hardening script
+      shell: "{{ ufw_script_path }}"
+      register: ufw_output
+
+    - name: Display UFW configuration results
+      debug:
+        var: ufw_output.stdout_lines
+
+    - name: Clean up temporary script
+      file:
+        path: "{{ ufw_script_path }}"
+        state: absent
+
+    - name: Restart Docker service to re-establish swarm connections
+      systemd:
+        name: docker
+        state: restarted
+        enabled: yes