Files
ml b15754ba2f Harden against bot floods and add post-provisioning service check
- Traefik rate-limits all routes (60 req/min standard, 300 for Nextcloud)
  and writes access logs to /var/log/traefik/access.log
- Fail2ban watches Traefik access logs and bans IPs after 10 x 403/404
  within 60 s for 24 h
- Nextcloud html directory created as www-data (UID 33) so Apache can
  process .htaccess and serve requests correctly
- scripts/check-services.sh verifies all seven endpoints return the
  expected HTTP status after provisioning
2026-06-28 08:02:45 +02:00

155 lines
3.0 KiB
YAML

---
# --- Packages ---
- name: Update apt cache
ansible.builtin.apt:
update_cache: true
cache_valid_time: 3600
tags: base
- name: Upgrade all packages
ansible.builtin.apt:
upgrade: dist
tags: base
- name: Install base packages
ansible.builtin.apt:
name:
- curl
- git
- vim
- htop
- ufw
- fail2ban
- unattended-upgrades
- apt-listchanges
state: present
tags: base
# --- System ---
- name: Set timezone
community.general.timezone:
name: "{{ timezone }}"
tags: base
# --- Deploy user ---
- name: Create deploy user
ansible.builtin.user:
name: "{{ deploy_user }}"
shell: /bin/bash
create_home: true
groups: sudo
append: true
state: present
tags: base
- name: Add SSH authorized key for deploy user
ansible.posix.authorized_key:
user: "{{ deploy_user }}"
state: present
key: "{{ lookup('file', playbook_dir + '/../keys/notroot_cloud_ladkau_de.pub') }}"
tags: base
- name: Allow deploy user passwordless sudo
ansible.builtin.copy:
dest: /etc/sudoers.d/{{ deploy_user }}
content: "{{ deploy_user }} ALL=(ALL) NOPASSWD:ALL\n"
mode: "0440"
validate: visudo -cf %s
tags: base
# --- SSH hardening ---
- name: Deploy hardened sshd_config
ansible.builtin.template:
src: sshd_config.j2
dest: /etc/ssh/sshd_config
owner: root
group: root
mode: "0600"
validate: sshd -t -f %s
notify: Restart sshd
tags: base
# --- Firewall ---
- name: Set UFW default incoming policy to deny
community.general.ufw:
direction: incoming
policy: deny
tags: base
- name: Set UFW default outgoing policy to allow
community.general.ufw:
direction: outgoing
policy: allow
tags: base
- name: Allow SSH (22/tcp)
community.general.ufw:
rule: allow
port: "22"
proto: tcp
tags: base
- name: Allow HTTP (80/tcp)
community.general.ufw:
rule: allow
port: "80"
proto: tcp
tags: base
- name: Allow HTTPS (443/tcp)
community.general.ufw:
rule: allow
port: "443"
proto: tcp
tags: base
- name: Enable UFW
community.general.ufw:
state: enabled
tags: base
# --- Automatic security updates ---
- name: Enable unattended-upgrades
ansible.builtin.copy:
src: 20auto-upgrades
dest: /etc/apt/apt.conf.d/20auto-upgrades
owner: root
group: root
mode: "0644"
tags: base
# --- Fail2ban ---
- name: Deploy fail2ban filter for Traefik
ansible.builtin.copy:
src: filter.d/traefik.conf
dest: /etc/fail2ban/filter.d/traefik.conf
owner: root
group: root
mode: "0644"
notify: Restart fail2ban
tags: base
- name: Deploy fail2ban jail for Traefik
ansible.builtin.copy:
src: jail.d/traefik.conf
dest: /etc/fail2ban/jail.d/traefik.conf
owner: root
group: root
mode: "0644"
notify: Restart fail2ban
tags: base
- name: Enable and start fail2ban
ansible.builtin.service:
name: fail2ban
state: started
enabled: true
tags: base