fix(time-sync): keep the internet VPS hosts on NTP #1592

Merged
k.renner merged 1 commits from fix/vps-time-sync into main 2026-11-07 12:33:04 +00:00
6 changed files with 30 additions and 83 deletions
-70
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@@ -1,70 +0,0 @@
---
# Configure VMs to use host time sync via kvm-clock
# Disables systemd-timesyncd to prevent NTP conflicts
#
# VMs get time from Proxmox host via kvm-clock paravirtualized clock
# This is more accurate and reliable than network NTP for VMs
- name: Configure VM time synchronization from host
hosts: all
become: yes
gather_facts: yes
tasks:
- name: Check if running as VM (not LXC)
stat:
path: /sys/devices/system/clocksource/clocksource0/current_clocksource
register: clocksource_file
- name: Get current clock source
slurp:
src: /sys/devices/system/clocksource/clocksource0/current_clocksource
register: clocksource
when: clocksource_file.stat.exists
- name: Display clock source
debug:
msg: "Clock source: {{ (clocksource.content | b64decode | trim) if clocksource_file.stat.exists else 'N/A (LXC)' }}"
- name: Check if systemd-timesyncd is installed
command: systemctl list-unit-files systemd-timesyncd.service
register: timesyncd_installed
check_mode: false
failed_when: false
changed_when: false
- name: Stop and disable systemd-timesyncd on VMs using kvm-clock
systemd:
name: systemd-timesyncd
state: stopped
enabled: no
when:
- clocksource_file.stat.exists
- clocksource.content is defined
- "'kvm-clock' in (clocksource.content | b64decode)"
- "'systemd-timesyncd.service' in timesyncd_installed.stdout"
- name: Mask systemd-timesyncd to prevent re-enabling
systemd:
name: systemd-timesyncd
masked: yes
when:
- clocksource_file.stat.exists
- clocksource.content is defined
- "'kvm-clock' in (clocksource.content | b64decode)"
- "'systemd-timesyncd.service' in timesyncd_installed.stdout"
- name: Verify time sync status
command: timedatectl show --property=NTPSynchronized
register: timesync_status
check_mode: false
changed_when: false
failed_when: false
- name: Display final status
debug:
msg: |
Host: {{ inventory_hostname }}
Type: {{ 'VM (kvm-clock)' if (clocksource_file.stat.exists and 'kvm-clock' in (clocksource.content | b64decode | default(''))) else 'LXC/Other' }}
Time sync: {{ timesync_status.stdout | default('unknown') }}
Note: VMs sync time from Proxmox host, LXCs inherit host time automatically
+1
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@@ -22,6 +22,7 @@
become: true
roles:
- common
- timesyncd
- docker-install
- netbird-proxy
- netbird-proxy-watchdog
+1
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@@ -16,5 +16,6 @@
become: true
roles:
- common
- timesyncd
- docker-install
- netbird-server
+2 -11
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@@ -54,18 +54,9 @@
# via plays/configure-ssh-ca.yml.
# -------------------------------------------------------
# 5. Disable NTP on VMs/LXC (use host time)
# 5. Time sync
# -------------------------------------------------------
- name: Stop and disable systemd-timesyncd on VMs/LXC
systemd:
name: systemd-timesyncd
state: stopped
enabled: no
masked: yes
when:
- ansible_facts['virtualization_role'] == 'guest'
- ansible_facts['virtualization_type'] in ['kvm', 'lxc']
ignore_errors: yes
# Moved to separate roles: timesyncd (internet VPS), chrony-ntp-server (edge).
# -------------------------------------------------------
# 6. Certificates
+26
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@@ -0,0 +1,26 @@
---
# Keep the system clock on NTP with systemd-timesyncd, on hosts that run no
# chrony. A KVM guest's clocksource does not steer wall-clock time; without an
# NTP client the clock drifts until JWT iat/exp checks fail.
- name: Install systemd-timesyncd
ansible.builtin.apt:
name: systemd-timesyncd
state: present
when: ansible_facts['os_family'] == 'Debian'
- name: Run systemd-timesyncd
ansible.builtin.systemd_service:
name: systemd-timesyncd
masked: false
enabled: true
state: started
- name: Wait for the clock to synchronize
ansible.builtin.command:
argv: [timedatectl, show, --property=NTPSynchronized, --value]
register: timesyncd_synchronized
changed_when: false
until: timesyncd_synchronized.stdout == "yes"
retries: 12
delay: 5
-2
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@@ -12,8 +12,6 @@
ansible.builtin.import_playbook: plays/configure-synology-python.yml
- name: Base system
ansible.builtin.import_playbook: plays/common.yml
- name: VM time sync
ansible.builtin.import_playbook: plays/configure-vm-time-sync.yml
- name: SSH user CA
ansible.builtin.import_playbook: plays/configure-ssh-ca.yml