Chris Cowan
733f5e2504
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Build and Push Docker Image / build (push) Successful in 39s
-switched to user 1000 for security. -added user to docker group -properly mounted btrfs drive on host allows users to create snapshots
69 lines
2.3 KiB
Bash
69 lines
2.3 KiB
Bash
#!/usr/bin/env bash
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# === Postgres Auto Backup Script ===
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# Description: Detects Postgres containers by known image names and runs pg_dumpall.
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# Author: Calahil Studios
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# === CONFIGURATION ===
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BACKUP_DIR="/backups/postgres_dumps"
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RETENTION_DAYS="${RETENTION_DAYS:-7}" # Keep 7 days of backups
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# List of known image name patterns
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KNOWN_IMAGES=$(
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cat <<'EOF'
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postgres:17.0-alpine
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postgres:17
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postgres
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postgres:14.0-alpine
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ghcr.io/immich-app/postgres:14-vectorchord0.4.3-pgvectors0.2.0
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EOF
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)
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echo "[BACKUPBOT_INFO] Starting PostgreSQL backup service..."
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mkdir -p "$BACKUP_DIR"
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TIMESTAMP=$(date +'%Y-%m-%d_%H-%M-%S')
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echo "[BACKUPBOT_INFO] $(date) - Starting backup cycle ($TIMESTAMP)"
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echo "[BACKUPBOT_INFO] Checking for running Postgres containers..."
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# Find running containers matching known image names
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MATCHING_CONTAINERS=$(
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docker ps --format "{{.ID}} {{.Image}}" | while read -r ID IMAGE; do
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for pattern in $KNOWN_IMAGES; do
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case "$IMAGE" in
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*"$pattern"*)
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echo "$ID"
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break
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;;
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esac
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done
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done
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)
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if [ -z "$MATCHING_CONTAINERS" ]; then
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echo "[BACKUPBOT_WARN] No Postgres containers found."
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else
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for container in $MATCHING_CONTAINERS; do
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NAME=$(docker inspect --format '{{.Name}}' "$container" | sed 's#^/##')
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CONTAINER_BACKUP_DIR="$BACKUP_DIR/$NAME"
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FILE="$CONTAINER_BACKUP_DIR/${TIMESTAMP}.sql"
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mkdir -p "$CONTAINER_BACKUP_DIR"
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echo "[BACKUPBOT_INFO] Backing up container: $NAME ($container)" | tee -a "$LOG_FILE"
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PG_USER=$(docker inspect --format '{{range .Config.Env}}{{println .}}{{end}}' "$container" | grep POSTGRES_USER | cut -d= -f2)
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PG_PASS=$(docker inspect --format '{{range .Config.Env}}{{println .}}{{end}}' "$container" | grep POSTGRES_PASSWORD | cut -d= -f2)
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if docker exec -e PGPASSWORD="$PG_PASS" "$container" pg_dumpall -U "$PG_USER" -h 127.0.0.1 >"$FILE" 2>/tmp/pg_backup_error.log; then
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echo "[BACKUPBOT_SUCCESS] Backup complete for $NAME -> $FILE"
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else
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echo "[BACKUPBOT_ERROR] Backup failed for $NAME (check /tmp/pg_backup_error.log)"
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fi
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# Retention cleanup
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find "$CONTAINER_BACKUP_DIR" -type f -mtime +$RETENTION_DAYS -name '*.sql' -delete
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done
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fi
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echo "[BACKUPBOT_INFO] Creating a snapshot of /srv/appdata"
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btrfs subvolume snapshot -r /source/appdata /backups/snapshots/$(hostname)-$(date +%F)
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echo "[BACKUPBOT_INFO] Backup cycle complete."
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