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Reduce snapshot and backup numbers

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This commit is contained in:
Wojciech Kozlowski 2022-11-10 00:13:15 +01:00
parent 522d93c71e
commit e9498669e8
3 changed files with 32 additions and 10 deletions
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34
playbooks/filesystem/yggdrasil/etc/sanoid/sanoid-templates.conf
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@ -1,7 +1,7 @@
[template_home] # Template for system datasets that are not being backed up anywhere. Snapshots are used to provide
hourly = 0 # option for rollback without having to reinstall entire system. If the hardware crashes or becomes
# corrupt reinstalling might be smarter given the fact that hardware will likely be different.
[template_production] [template_system]
frequently = 0 frequently = 0
hourly = 36 hourly = 36
daily = 30 daily = 30
@ -10,12 +10,34 @@
autosnap = yes autosnap = yes
autoprune = yes autoprune = yes
# Template for home directories which will use the system template, but they don't change so fast.
[template_home]
hourly = 0
# Template for datasets with production data. Unlike system datasets, production datasets are
# expected to be backed up, both to spare local storage as well as a remote location. Therefore,
# snapshots only serve the purpose of providing snapshots for these backups. Otherwise, don't keep
# snapshots as they will just take up space. Applications that need their data versioned will be
# versioning themselves so they only need backups.
[template_production]
frequently = 0
hourly = 2
daily = 2
monthly = 0
yearly = 0
autosnap = yes
autoprune = yes
# Template for backup datasets which also doubles as a hot spare. The assumption is that these
# backup production datasets. In addition to three months of snapshots, keep 36 hourly snapshots for
# quick rollback in case of trouble. No monthly snapshots are kept as that would require the
# production template to produce them.
[template_backup] [template_backup]
autoprune = yes autoprune = yes
frequently = 0 frequently = 0
hourly = 30 hourly = 36
daily = 90 daily = 90
monthly = 12 monthly = 0
yearly = 0 yearly = 0
### don't take new snapshots - snapshots on backup ### don't take new snapshots - snapshots on backup

2
playbooks/filesystem/yggdrasil/usr/local/sbin/restic-volume-data
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@ -58,7 +58,7 @@ if __name__ == "__main__":
subprocess.run(f"{restic_cmd_base} snapshots || {restic_cmd_base} init", subprocess.run(f"{restic_cmd_base} snapshots || {restic_cmd_base} init",
shell=True, check=True) shell=True, check=True)
subprocess.run(f"{restic_cmd_base} backup .", shell=True, cwd=backup_path, check=True) subprocess.run(f"{restic_cmd_base} backup .", shell=True, cwd=backup_path, check=True)
subprocess.run(f"{restic_cmd_base} forget --prune --keep-daily 90 --keep-monthly 12", subprocess.run(f"{restic_cmd_base} forget --prune --keep-daily 30 --keep-monthly 3",
shell=True, check=True) shell=True, check=True)
subprocess.run(f"{restic_cmd_base} check", shell=True, check=True) subprocess.run(f"{restic_cmd_base} check", shell=True, check=True)

6
playbooks/tasks/backups/00-zfs-snapshots.d/sanoid.yml
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@ -7,17 +7,17 @@
marker: "# {mark} ANSIBLE MANAGED BLOCK SYSTEM #" marker: "# {mark} ANSIBLE MANAGED BLOCK SYSTEM #"
block: | block: |
[bpool/BOOT] [bpool/BOOT]
use_template = production use_template = system
recursive = yes recursive = yes
process_children_only = yes process_children_only = yes
[rpool/ROOT] [rpool/ROOT]
use_template = production use_template = system
recursive = yes recursive = yes
process_children_only = yes process_children_only = yes
[rpool/home] [rpool/home]
use_template = production,home use_template = system,home
recursive = yes recursive = yes
process_children_only = yes process_children_only = yes