Administrator
85 lines
2.6 KiB
Bash
85 lines
2.6 KiB
Bash
#!/bin/bash
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set -x
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# ==========================================================
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# CONFIGURATION
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# ==========================================================
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CONTAINER_NAME="postgresql18"
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PG_HOST="localhost"
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PG_PORT="5432"
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PG_USER="vladimir.buzalka"
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export PGPASSWORD="Vlado7309208104++"
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UNRAID_NAME="tower"
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BASE_PATH="/mnt/user/Backup/Critical/PostgreSQLBackup"
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KEEP_DAYS=7
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KEEP_COUNT=7 # počet posledních záloh k udržení (mimo time-based)
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# ==========================================================
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# START
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# ==========================================================
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echo "Starting PostgreSQL full backup (pg_dumpall)"
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START_TS=$(date '+%Y-%m-%d %H:%M:%S')
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DATE=$(date +%Y-%m-%d_%H%M)
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FINAL_PATH="$BASE_PATH/$UNRAID_NAME/$DATE"
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mkdir -p "$FINAL_PATH"
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DUMP_FILE="$FINAL_PATH/all_databases.sql.gz"
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ERR_FILE="$FINAL_PATH/all_databases.err"
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# ==========================================================
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# DUMP + GZIP
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# pg_dumpall zachovává: všechny DB, role, tablespaces, grants
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# Streamuje přes stdout, nepotřebuje volume mount
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# ==========================================================
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docker exec \
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-e PGPASSWORD="$PGPASSWORD" \
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"$CONTAINER_NAME" \
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pg_dumpall \
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--host="$PG_HOST" \
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--port="$PG_PORT" \
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--username="$PG_USER" \
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--clean \
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--if-exists \
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| gzip > "$DUMP_FILE" 2> "$ERR_FILE"
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EXIT_CODE=${PIPESTATUS[0]}
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# ==========================================================
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# VALIDATION
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# ==========================================================
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if [ $EXIT_CODE -eq 0 ] && [ -s "$DUMP_FILE" ] && [ ! -s "$ERR_FILE" ]; then
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echo "SUCCESS: Full PostgreSQL backup completed"
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echo "Dump size: $(du -h "$DUMP_FILE" | cut -f1)"
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rm -f "$ERR_FILE"
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else
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echo "ERROR: Backup failed"
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echo "Exit code: $EXIT_CODE"
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echo "Dump file:"
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ls -lh "$DUMP_FILE" 2>/dev/null || echo " (not created)"
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echo "Error output:"
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[ -s "$ERR_FILE" ] && cat "$ERR_FILE" || echo " (no stderr output)"
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fi
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# ==========================================================
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# CLEANUP OLD BACKUPS
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# 1. Smaž zálohy starší než KEEP_DAYS dnů
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# 2. Z toho co zbyde, ponech jen posledních KEEP_COUNT
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# ==========================================================
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echo "Cleaning up old backups..."
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find "$BASE_PATH/$UNRAID_NAME" \
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-mindepth 1 -maxdepth 1 -type d -mtime +$KEEP_DAYS \
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-exec rm -rf {} \;
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# Nech jen posledních KEEP_COUNT záloh
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ls -td "$BASE_PATH/$UNRAID_NAME"/*/ 2>/dev/null \
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| tail -n +$((KEEP_COUNT + 1)) \
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| xargs -r rm -rf
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echo "------------------------------------------"
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echo "Backup task completed at $(date)"
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echo "Started at: $START_TS"
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set +x
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