64 lines
2.1 KiB
YAML
64 lines
2.1 KiB
YAML
---
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- name: Secure and Configure a New LXC Container
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hosts: 'lxc' # Hosts or group defined in your inventory
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remote_user: root
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tasks:
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- name: 1. Create user '{{ target_user }}'
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ansible.builtin.user:
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name: '{{ target_user }}'
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shell: /bin/bash
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groups: sudo # Add to sudo (for Debian/Ubuntu)
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state: present
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- name: 1.1. Allow '{{ target_user }}' to use sudo without a password
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ansible.builtin.copy:
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dest: /etc/sudoers.d/90-{{ target_user }}-nopasswd
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content: '{{ target_user }} ALL=(ALL) NOPASSWD: ALL'
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mode: '0440'
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validate: /usr/sbin/visudo -cf %s
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- name: 2. Set up authorized_keys for '{{ target_user }}'
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ansible.posix.authorized_key:
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user: '{{ target_user }}'
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key: "{{ item }}"
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state: present
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path: /home/{{ target_user }}/.ssh/authorized_keys
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loop: "{{ my_public_keys }}"
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# ansible.posix.authorized_key will create an .ssh directory with the correct permissions.
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- name: 3. Lock password for '{{ target_user }}'
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ansible.builtin.user:
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name: '{{ target_user }}'
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password_lock: yes
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- name: 4.0. Install software-properties-common
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ansible.builtin.apt:
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name: software-properties-common
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state: present
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update_cache: yes
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- name: 4.1. Disallow root login over SSH
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ansible.builtin.lineinfile:
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path: /etc/ssh/sshd_config
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regexp: '^#?PermitRootLogin'
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line: 'PermitRootLogin no'
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validate: /usr/sbin/sshd -t -f %s
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notify: restart sshd
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- name: 4.2. Disallow password authentication
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ansible.builtin.lineinfile:
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path: /etc/ssh/sshd_config
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regexp: '^#?PasswordAuthentication'
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line: 'PasswordAuthentication no'
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validate: /usr/sbin/sshd -t -f %s
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notify: restart sshd
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handlers:
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# This block will only run if at least one task sends a notification.
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# This prevents unnecessary service restarts.
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- name: 5. Restart sshd server
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listen: "restart sshd"
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ansible.builtin.service:
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name: sshd
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state: restarted
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