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Hermes Agent service account 91b5817e5f feat(ansible): add linux-baseline role and day0_linux_baseline playbook
Introduces a single, idempotent baseline role to supersede the
overlapping day0-baseline and common roles. Capabilities are
feature-flagged so they can be toggled per-host:

  - packages (common + OS-family + per-host extras)
  - timezone + locale
  - chrony time sync against sundial
  - baseline users (jarvis admin account with SSH key + NOPASSWD sudo)
  - SSH hardening via /etc/ssh/sshd_config.d/ drop-in
  - unattended security upgrades (Debian family)
  - sysctl drop-in at /etc/sysctl.d/99-mk-labs.conf
  - journald retention caps
  - branded MOTD

Ubuntu/Debian is first-class; vars/RedHat.yml provides a placeholder
for future distros via the ansible_os_family pattern.

The legacy day0-baseline and common roles remain in place for now and
will be removed during the playbook cleanup sweep, alongside the
existing playbook naming inconsistencies.
2026-05-29 20:40:04 -05:00

26 lines
661 B
YAML

---
# ============================================================================
# Time synchronisation via chrony
# ============================================================================
- name: Install chrony
ansible.builtin.package:
name: chrony
state: present
- name: Deploy chrony configuration
ansible.builtin.template:
src: chrony.conf.j2
dest: "{{ baseline_chrony_config_path }}"
owner: root
group: root
mode: "0644"
backup: true
notify: Restart chrony
- name: Ensure chrony is enabled and running
ansible.builtin.systemd:
name: "{{ baseline_chrony_service }}"
state: started
enabled: true