a5bb4dc33d
A dated pg_dump plus an rsync mirror of the model files, with the stack running. The dump is read back with pg_restore -l inside the container before it replaces the day's file, so a bad run leaves older backups alone. Older dumps are pruned after KEEP_DAYS. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
70 lines
2.7 KiB
Bash
Executable file
70 lines
2.7 KiB
Bash
Executable file
#!/usr/bin/env bash
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# Nightly backup: a dated dump of the database, and a mirror of the model files.
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#
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# Run it from anywhere — it finds the folder holding docker-compose.yml itself.
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# Printhive keeps running throughout; pg_dump takes a consistent snapshot.
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#
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# ./tools/backup.sh
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#
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# Settings (in .env beside docker-compose.yml, or the environment):
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# BACKUP_DIR where backups go (default: ./backups)
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# DATA_DIR where the data lives (default: ./data)
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# KEEP_DAYS dumps to keep, in days (default: 14)
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set -euo pipefail
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cd "$(dirname "$0")/.."
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setting() { # name, fallback
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local from_env="${!1:-}"
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if [ -n "$from_env" ]; then echo "$from_env"; return; fi
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if [ -f .env ]; then
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local line
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line="$(grep -E "^$1=" .env | tail -1 | cut -d= -f2-)"
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if [ -n "$line" ]; then echo "$line"; return; fi
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fi
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echo "$2"
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}
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BACKUP_DIR="$(setting BACKUP_DIR ./backups)"
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DATA_DIR="$(setting DATA_DIR ./data)"
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KEEP_DAYS="$(setting KEEP_DAYS 14)"
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stamp="$(date +%Y-%m-%d)"
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mkdir -p "$BACKUP_DIR/db"
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# --- the database -----------------------------------------------------------
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# Written to a .part file first, so an interrupted run never leaves behind
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# something that looks like a good backup.
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dump="$BACKUP_DIR/db/printhive-$stamp.dump"
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# Dumped inside the container and read back there — a dump that can't be listed
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# is no backup at all, and pg_restore can only list a real file, not a pipe.
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if ! docker compose exec -T db sh -c \
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'pg_dump -U printhive -Fc printhive > /tmp/printhive.dump && pg_restore -l /tmp/printhive.dump > /dev/null'; then
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echo "$(date '+%F %T') FAILED: couldn’t dump the database — keeping the old backups" >&2
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docker compose exec -T db rm -f /tmp/printhive.dump || true
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exit 1
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fi
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docker compose exec -T db cat /tmp/printhive.dump > "$dump.part"
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docker compose exec -T db rm -f /tmp/printhive.dump || true
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if [ ! -s "$dump.part" ]; then
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echo "$(date '+%F %T') FAILED: the dump came out empty — keeping the old backups" >&2
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rm -f "$dump.part"
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exit 1
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fi
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mv "$dump.part" "$dump"
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echo "$(date '+%F %T') database → $dump ($(du -h "$dump" | cut -f1))"
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# Older dumps go, so the folder doesn't grow for ever.
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find "$BACKUP_DIR/db" -name 'printhive-*.dump' -type f -mtime "+$KEEP_DAYS" -delete
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# --- the model files --------------------------------------------------------
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# A mirror, not a history: it matches what's there now, deletions included.
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# Thumbnails, previews and extracted archives are left out — they rebuild.
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if [ ! -d "$DATA_DIR/uploads" ]; then
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echo "$(date '+%F %T') FAILED: no $DATA_DIR/uploads — is the disk mounted?" >&2
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exit 1
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fi
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rsync -a --delete "$DATA_DIR/uploads/" "$BACKUP_DIR/uploads/"
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echo "$(date '+%F %T') files → $BACKUP_DIR/uploads ($(du -sh "$BACKUP_DIR/uploads" | cut -f1))"
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