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sys-ctl: make service file generation deterministic and simplify ignore logic

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- Added '| sort' to all service group lists and backup routine lists to ensure
  deterministic ordering and stable checksums across Ansible runs.
- Adjusted systemctl templates to use a single service variable
  ('SYS_SERVICE_BACKUP_RMT_2_LOC') instead of rejecting dynamic list entries,
  making the ignore logic simpler and more predictable.
- Fixed minor whitespace inconsistencies in Jinja templates to avoid
  unnecessary changes.

This change was made to prevent spurious 'changed' states in Ansible caused by
non-deterministic list order and to reduce complexity in service definitions.

See discussion: https://chatgpt.com/share/68a74c20-6300-800f-a44e-da43ae2f3dea
This commit is contained in:
Kevin Veen-Birkenbach 2025-08-21 18:43:17 +02:00
parent 79e702a3ab
commit efa68cc1e0
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GPG Key ID: 44D8F11FD62F878E
4 changed files with 19 additions and 17 deletions
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12
group_vars/all/07_services.yml
View File

@ -18,32 +18,34 @@ SYS_SERVICE_ON_FAILURE_COMPOSE: "{{ ('sys-ctl-alm-compose@') | get_service
## Groups
SYS_SERVICE_GROUP_BACKUPS: >
{{ (('sys-ctl-bkp-' | get_category_entries) + ('svc-bkp-' | get_category_entries))
| map('regex_replace', '$', SYS_SERVICE_SUFFIX) | list }}
| map('regex_replace', '$', SYS_SERVICE_SUFFIX) | list | sort }}
SYS_SERVICE_GROUP_CLEANUP: >
{{ ('sys-ctl-cln-' | get_category_entries)
| map('regex_replace', '$', SYS_SERVICE_SUFFIX) | list }}
| map('regex_replace', '$', SYS_SERVICE_SUFFIX) | list | sort }}
SYS_SERVICE_GROUP_REPAIR: >
{{ ('sys-ctl-rpr-' | get_category_entries)
| map('regex_replace', '$', SYS_SERVICE_SUFFIX) | list }}
| map('regex_replace', '$', SYS_SERVICE_SUFFIX) | list | sort }}
SYS_SERVICE_GROUP_OPTIMIZATION: >
{{ ('svc-opt-' | get_category_entries)
| map('regex_replace', '$', SYS_SERVICE_SUFFIX) | list }}
| map('regex_replace', '$', SYS_SERVICE_SUFFIX) | list | sort }}
SYS_SERVICE_GROUP_MAINTANANCE: >
{{ ('svc-mtn-' | get_category_entries)
| map('regex_replace', '$', SYS_SERVICE_SUFFIX) | list }}
| map('regex_replace', '$', SYS_SERVICE_SUFFIX) | list | sort }}
## Collection of services to manipulate the system
SYS_SERVICE_GROUP_MANIPULATION: >
{{
(
SYS_SERVICE_GROUP_BACKUPS +
SYS_SERVICE_GROUP_CLEANUP +
SYS_SERVICE_GROUP_REPAIR +
SYS_SERVICE_GROUP_OPTIMIZATION +
SYS_SERVICE_GROUP_MAINTANANCE +
[ SYS_SERVICE_UPDATE_DOCKER ]
) | sort
}}

2
roles/sys-ctl-bkp-docker-2-loc/templates/systemctl.service.j2
View File

@ -4,5 +4,5 @@ OnFailure={{ SYS_SERVICE_ON_FAILURE_COMPOSE }} {{ SYS_SERVICE_CLEANUP_BACKUPS_FA
[Service]
Type=oneshot
ExecStartPre=/usr/bin/python {{ PATH_SYSTEM_LOCK_SCRIPT }} {{ SYS_SERVICE_GROUP_MANIPULATION | join(' ') }} --ignore {{ SYS_SERVICE_GROUP_BACKUPS | reject('equalto', role_name ~ '-everything') | join(' ') }} --timeout "{{ SYS_TIMEOUT_BACKUP_SERVICES }}"
ExecStartPre=/usr/bin/python {{ PATH_SYSTEM_LOCK_SCRIPT }} {{ SYS_SERVICE_GROUP_MANIPULATION | join(' ') }} --ignore {{ SYS_SERVICE_BACKUP_RMT_2_LOC }} --timeout "{{ SYS_TIMEOUT_BACKUP_SERVICES }}"
ExecStart=/bin/sh -c '{{ BKP_DOCKER_2_LOC_EXEC }}'

6
roles/sys-ctl-bkp-docker-2-loc/vars/main.yml
View File

@ -12,13 +12,13 @@ BKP_DOCKER_2_LOC_DB_ENABLED: "{{ database_type | default('') | bool }}"
# Gather mapped values as lists
BKP_DOCKER_2_LOC_DB_ROUTINE: >-
{{ applications | find_dock_val_by_bkp_entr('database_routine', 'name') | list }}
{{ applications | find_dock_val_by_bkp_entr('database_routine', 'name') | list | sort }}
BKP_DOCKER_2_LOC_NO_STOP_REQUIRED: >-
{{ applications | find_dock_val_by_bkp_entr('no_stop_required', 'image') | list }}
{{ applications | find_dock_val_by_bkp_entr('no_stop_required', 'image') | list | sort }}
BKP_DOCKER_2_LOC_DISABLED: >-
{{ applications | find_dock_val_by_bkp_entr('disabled', 'image') | list }}
{{ applications | find_dock_val_by_bkp_entr('disabled', 'image') | list | sort }}
# CLI argument strings (only set if list not empty)
BKP_DOCKER_2_LOC_DB_ROUTINE_CLI: >-

2
roles/sys-ctl-cln-disc-space/templates/systemctl.service.j2
View File

@ -4,5 +4,5 @@ OnFailure={{ SYS_SERVICE_ON_FAILURE_COMPOSE }}
[Service]
Type=oneshot
ExecStartPre=/usr/bin/python {{ PATH_SYSTEM_LOCK_SCRIPT }} {{ SYS_SERVICE_GROUP_MANIPULATION | join(' ') }} --ignore {{ SYS_SERVICE_GROUP_CLEANUP| join(' ') }} --timeout "{{ SYS_TIMEOUT_BACKUP_SERVICES }}"
ExecStartPre=/usr/bin/python {{ PATH_SYSTEM_LOCK_SCRIPT }} {{ SYS_SERVICE_GROUP_MANIPULATION | join(' ') }} --ignore {{ SYS_SERVICE_GROUP_CLEANUP | join(' ') }} --timeout "{{ SYS_TIMEOUT_BACKUP_SERVICES }}"
ExecStart={{ system_service_script_exec }} {{ SIZE_PERCENT_CLEANUP_DISC_SPACE }}