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homelab-infra/infrastructure/samba-ad/ansible/roles/ad_sssd_join/tasks/main.yml
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panxiao81 88a02ababa
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Establish clean homelab infrastructure baseline
Reorganize the brownfield repository, remove retired and generated artifacts, harden ignore rules, and record the GitOps/IaC redesign.
2026-09-09 16:47:20 +00:00

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2.9 KiB
YAML

---
# realmd + SSSD join, for INTERACTIVE LOGIN. See defaults for why this is
# separate from samba_member.
#
# SSSD is Ubuntu's default AD backend (ADSys uses it unless winbind is
# explicitly selected); winbind is for file/printer sharing and GPO.
- name: Assert required variables
ansible.builtin.assert:
that:
- samba_ad_realm | length > 0
- ad_sssd_join_password | length > 0
fail_msg: "samba_ad_realm and ad_sssd_join_password (vault_samba_ad_admin_password) are required."
quiet: true
- name: Install realmd + SSSD packages
ansible.builtin.apt:
name: "{{ ad_sssd_packages }}"
state: present
update_cache: true
cache_valid_time: 3600
register: _sssd_pkgs
retries: 3
delay: 15
until: _sssd_pkgs is succeeded
# Kerberos rejects a skew over 5 minutes, and the resulting error names the
# clock nowhere near clearly enough. Fail here with a useful message instead.
- name: Check the clock is NTP-synchronised
ansible.builtin.command: timedatectl show -p NTPSynchronized --value
register: _ntp
changed_when: false
- name: Assert time is synchronised
ansible.builtin.assert:
that: "_ntp.stdout | trim == 'yes'"
fail_msg: "Clock is not NTP-synchronised; the Kerberos join will fail on skew."
quiet: true
- name: Check whether already joined
ansible.builtin.command: "realm list {{ samba_ad_realm | lower }}"
register: _realm
changed_when: false
failed_when: false
check_mode: false
- name: Join the domain
# adcli creates the computer account. no_log: the admin password is on argv.
ansible.builtin.shell:
cmd: >-
echo '{{ ad_sssd_join_password }}' |
realm join --user={{ ad_sssd_join_user }} {{ samba_ad_realm | lower }}
when: samba_ad_realm | lower not in (_realm.stdout | default(''))
no_log: true
notify: Restart sssd
- name: Deploy sssd.conf
ansible.builtin.template:
src: sssd.conf.j2
dest: /etc/sssd/sssd.conf
owner: root
group: root
mode: "0600" # sssd refuses to start if this is group/world readable
notify: Restart sssd
- name: Create home directories on first login
# Without this a domain user logs in with no home and lands in /, which breaks
# anything expecting a desktop session.
ansible.builtin.command:
cmd: pam-auth-update --enable mkhomedir
register: _mkhome
changed_when: false
- name: Enable and start sssd
ansible.builtin.systemd_service:
name: sssd
enabled: true
state: started
- name: Flush handlers before verifying
ansible.builtin.meta: flush_handlers
# --- verification: prove the join actually resolves a domain user ------------
- name: Verify a domain user resolves through NSS
ansible.builtin.command: "id {{ ad_sssd_verify_user | default('Administrator') }}"
register: _id
changed_when: false
retries: 6
delay: 5
until: _id.rc == 0
- name: Report
ansible.builtin.debug:
msg: "{{ _id.stdout }}"