Idempotent host configuration targeting Ubuntu 24.04 with ZFS on a dedicated second disk. Role-based platform-infra/ansible: - base: apt packages, timezone, unattended security upgrades. - zfs: install ZFS, create pool on a dedicated disk (guarded against wiping a non-empty disk), create platform datasets + customers parent per docs/03; docker dataset mounted at /var/lib/docker. - docker: Docker Engine + Compose plugin, daemon.json written before first start so the native zfs storage driver initializes on the ZFS data-root; per-site network address pool preconfigured. - firewall: nftables inbound default-deny in a dedicated table that never flushes Docker's rules; container outbound SMTP blocked via a DOCKER-USER jump applied by a systemd oneshot. - ssh_hardening: key-first SSH with an anti-lockout assertion, config validation gate, and the sftponly group for Phase 4 SFTP accounts. Includes ansible.cfg, requirements.yml, inventory example, group_vars with safety notes, and a run guide. Real inventory (hosts.yml) is git-ignored. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
39 lines
918 B
YAML
39 lines
918 B
YAML
---
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- name: Update apt cache
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ansible.builtin.apt:
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update_cache: true
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cache_valid_time: 3600
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- name: Install base packages
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ansible.builtin.apt:
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name:
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- ca-certificates
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- curl
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- gnupg
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- nftables
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- acl
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- rsync
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- python3
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- unattended-upgrades
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state: present
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- name: Get current timezone
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ansible.builtin.command: timedatectl show -p Timezone --value
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register: current_tz
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changed_when: false
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- name: Set system timezone
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ansible.builtin.command: "timedatectl set-timezone {{ host_timezone }}"
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when:
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- host_timezone | length > 0
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- current_tz.stdout != host_timezone
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- name: Enable unattended security upgrades
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ansible.builtin.copy:
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dest: /etc/apt/apt.conf.d/20auto-upgrades
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owner: root
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group: root
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mode: "0644"
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content: |
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APT::Periodic::Update-Package-Lists "1";
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APT::Periodic::Unattended-Upgrade "1";
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