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feat(backup): update backup retention #4

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Merged
thenav56 merged 1 commit into from
Oct 9, 2025
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feat(backup): update backup retention #4

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19 changes: 6 additions & 13 deletions docker-compose.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -118,29 +118,22 @@ services:
labels:
# NOTE: the cron format starts with seconds, instead of minutes. https://pkg.go.dev/github.com/robfig/cron?utm_source=godoc
ofelia.enabled: "true"
# TODO: Update this?
# NOTE: Make sure to align this with the retention policies ./postgres/pgbackrest/pgbackrest.conf
# Incremental Backups every day (At 22:00)
ofelia.job-exec.incr.schedule: "0 0 22 * * *"

@thenav56 thenav56 Oct 9, 2025

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Removing incremental backups to avoid high storage usages, as we can't expire them before 3 months (COLDLINE).

We will still have WAL files for PITR, which will be slow but doable for now.

ofelia.job-exec.incr.command: sh -c "_ENV=${OFELIA_PROJECT_NAME?error} pgbackrest --stanza=main backup --type=incr"
ofelia.job-exec.incr.user: "postgres"
ofelia.job-exec.incr.no-overlap: 1
# Differential backup every week (At 02:30 on Monday)
ofelia.job-exec.diff.schedule: "0 30 2 * * 1"
ofelia.job-exec.diff.command: sh -c "_ENV=${OFELIA_PROJECT_NAME?error} pgbackrest --stanza=main backup --type=diff"
ofelia.job-exec.diff.user: "postgres"
ofelia.job-exec.diff.no-overlap: 1
# XXX: Make sure to align this with the retention policies ./postgres/pgbackrest/pgbackrest.conf
# Full backup every month (At 10:00 on day-of-month 1)
ofelia.job-exec.full.schedule: "0 0 10 1 * *"
ofelia.job-exec.full.command: sh -c "_ENV=${OFELIA_PROJECT_NAME?error} pgbackrest --stanza=main backup --type=full"
ofelia.job-exec.full.user: "postgres"
ofelia.job-exec.full.no-overlap: 1
# Differential backup every week (At 02:30 on Monday)
ofelia.job-exec.diff.schedule: "0 30 2 * * 1"
ofelia.job-exec.diff.command: sh -c "_ENV=${OFELIA_PROJECT_NAME?error} pgbackrest --stanza=main backup --type=diff"
ofelia.job-exec.diff.user: "postgres"
ofelia.job-exec.diff.no-overlap: 1
# Expire every day (At 01:30)
ofelia.job-exec.expire.schedule: "0 30 01 * * *"
ofelia.job-exec.expire.command: sh -c "_ENV=${OFELIA_PROJECT_NAME?error} pgbackrest --stanza=main expire"
ofelia.job-exec.expire.user: "postgres"
ofelia.job-exec.expire.no-overlap: 1
# TODO: validate?
secrets:
- pgbackrest_gc_service_account_key
profiles:
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23 changes: 14 additions & 9 deletions postgres/pgbackrest/pgbackrest.conf
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Expand Up @@ -4,15 +4,20 @@
pg1-path=/var/lib/postgresql/data/

[global]
# NOTE: Make sure to align this with the backup schedule docker-compose.yaml
# RETENTIONS TODO: UPDATE THIS?
# Keep 4 last full backups
repo1-retention-full=4
# Keep 6 differential backups after the last full backup
repo1-retention-diff=6
# Keep 7 days of WAL archives using incremental archive retention
repo1-retention-archive-type=incr
repo1-retention-archive=7
repo1-block=y
repo1-bundle=y

# XXX: Make sure to align this with the backup schedule docker-compose.yaml

# Keep it for 4 months
repo1-retention-full-type=time
repo1-retention-full=120

# Keep 4 * 3 diff backups (3 months as retain by COLDLINE)
repo1-retention-diff=12

delta=y
start-fast=y

# Performance tuning
process-max=4
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