hygienic-books
03b371650c
On each target machine we're storing the Git repo that has our unit files underneath '/opt/git'. Prior to this commit we used to place symlinks from '/etc/systemd/system' into the appropriate '/opt/git' subdir. On most machines this worked fine, however, on some we encountered a race condition on system start. Sometimes '/opt/git' is not the same file system as '/'. If that's the case chances are that systemd initializes the system and fails to access a unit file at '/opt/git' because that file system is just barely not yet visible early in the boot process. For a timer unit for example this could result in enabling the unit and upon reboot seeing that the unit no longer existed in systemd's world view e.g. via 'systemctl list-timers' even though the symlink at '/etc/systemd/system' still pointed to an '/opt/git' subdir when inspected manually seconds after boot. journalctl, however, would clearly confirm that at system initialization the symlink target was inaccessible. We could fiddle around with delaying boot until '/opt/git' and its descendants are visible but the sane solution is to just not rely on a separate file system for important stuff such as unit files. We now copy unit files to '/etc/systemd/system' instead of symlinking them.
72 lines
3.2 KiB
YAML
72 lines
3.2 KiB
YAML
# SPDX-License-Identifier: MIT
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- name: 'If Arch Linux create dir to Git clone repo for restart detection'
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when: 'ansible_facts[''os_family''] | lower == ''archlinux'''
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ansible.builtin.file:
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path: '{{ genvm_os_needs_restart_git_clone_dir }}'
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state: 'directory'
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- name: 'If Arch Linux Git clone repo for restart detection'
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when: 'ansible_facts[''os_family''] | lower == ''archlinux'''
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ansible.builtin.git:
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repo: '{{ genvm_os_needs_restart_git_repo }}'
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dest: '{{ genvm_os_needs_restart_git_clone_dir }}'
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version: '{{ genvm_os_needs_restart_git_branch }}'
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- name: 'If Arch Linux create symlinks to repo for restart detection'
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when: 'ansible_facts[''os_family''] | lower == ''archlinux'''
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loop_control:
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loop_var: 'genvm_os_needs_restart_symlink'
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label: 'Create symlink to ''{{ genvm_os_needs_restart_symlink.target | basename }}'''
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loop:
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- { target: '{{ genvm_os_needs_restart_git_clone_dir }}/arch-needs-restart.sh', symlink: '/usr/local/bin/arch-needs-restart' }
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- { target: '{{ genvm_os_needs_restart_git_clone_dir }}/arch-needs-restart.hook', symlink: '/usr/share/libalpm/hooks/arch-needs-restart.hook' }
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ansible.builtin.file:
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src: '{{ genvm_os_needs_restart_symlink.target }}'
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dest: '{{ genvm_os_needs_restart_symlink.symlink }}'
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state: 'link'
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force: true
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- name: 'If Arch Linux create dir to Git clone repo for OS auto-upgrades'
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when: 'ansible_facts[''os_family''] | lower == ''archlinux'''
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ansible.builtin.file:
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path: '{{ genvm_os_auto_upgrades_git_clone_dir }}'
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state: 'directory'
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- name: 'If Arch Linux Git clone repo for OS auto-upgrades'
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when: 'ansible_facts[''os_family''] | lower == ''archlinux'''
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ansible.builtin.git:
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repo: '{{ genvm_os_auto_upgrades_git_repo }}'
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dest: '{{ genvm_os_auto_upgrades_git_clone_dir }}'
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version: '{{ genvm_os_auto_upgrades_git_branch }}'
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notify:
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- 'Reload systemd unit configs'
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- name: 'If Arch Linux copy systemd unit files for OS auto-upgrades to ''/etc/systemd/system'''
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when: 'ansible_facts[''os_family''] | lower == ''archlinux'''
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loop_control:
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loop_var: 'genvm_os_auto_upgrades_unit'
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label: 'Copy ''{{ genvm_os_auto_upgrades_unit.source | basename }}'' to ''/etc/systemd/system'''
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loop:
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- { source: '{{ genvm_os_auto_upgrades_git_clone_dir }}/arch-linux-update-and-restart.service', target: '/etc/systemd/system/arch-linux-update-and-restart.service' }
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- { source: '{{ genvm_os_auto_upgrades_git_clone_dir }}/arch-linux-update-and-restart.timer', target: '/etc/systemd/system/arch-linux-update-and-restart.timer' }
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ansible.builtin.copy:
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src: '{{ genvm_os_auto_upgrades_unit.source }}'
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dest: '{{ genvm_os_auto_upgrades_unit.target }}'
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remote_src: true
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notify:
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- 'Reload systemd unit configs'
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- name: 'If Arch Linux enable systemd timer for OS auto-upgrades'
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ansible.builtin.systemd_service:
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name: 'arch-linux-update-and-restart.timer'
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state: 'started'
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enabled: true
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- name: 'If Arch Linux make sure pacman ignores kernel updates (our zfs-dkms may not always be compatible)'
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when: 'ansible_facts[''os_family''] | lower == ''archlinux'''
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community.general.ini_file:
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path: '/etc/pacman.conf'
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section: 'options'
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option: 'IgnorePkg'
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value: 'linux linux-headers'
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