50 lines
1.2 KiB
Bash
50 lines
1.2 KiB
Bash
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#!/bin/bash
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if [ "$(id -u)" != "0" ]; then
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echo -e "\033[31mThis script requires superuser rights.\033[0m"
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exit 0
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fi
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if [ -z "$1" ] || [ -z "$2" ]; then
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echo "Please provide both the POSTGRES_DB and POSTGRES_USER as arguments."
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exit 1
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fi
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trap 'echo -e "\033[31mSomething went wrong\033[0m"; exit 1' EXIT
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set -e
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export DEBIAN_FRONTEND=noninteractive
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# configuration settings
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POSTGRES_DB="$1"
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POSTGRES_USER="$2"
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CURRENT_MONTH=$(date +%Y-%m)
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CURRENT_DATE=$(date +%Y-%m-%d)
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CURRENT_DATETIME=$(date +%d-%b-%Y_%H_%M_%Z)
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BACKUPS_PATH=/data/backups/postgres
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DOCKER_SERVICE_NAME=postgres
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# backup PostgreSQL database
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BACKUP_FOLDER=$BACKUPS_PATH/$POSTGRES_DB
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if [ ! -d "$BACKUP_FOLDER" ]; then
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mkdir -p "$BACKUP_FOLDER"
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fi
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echo 'Creating PostgreSQL backups...'
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cd "$BACKUP_FOLDER"
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if [ -f 'dump_'"$POSTGRES_DB"'.sql' ]; then
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rm 'dump_'"$POSTGRES_DB"'.sql'
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fi
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db_backup_filename=$POSTGRES_DB'_'$CURRENT_DATETIME'.tar.gz'
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docker exec -t postgres pg_dump -U $POSTGRES_USER $POSTGRES_DB > 'dump_'"$POSTGRES_DB"'.sql'
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tar -cf - 'dump_'"$POSTGRES_DB"'.sql' | gzip -9 > "$db_backup_filename"
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rm 'dump_'"$POSTGRES_DB"'.sql'
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cd "$BACKUP_FOLDER"
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md5sum * > MD5SUMS
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trap - EXIT
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echo 'The backup of the '"$POSTGRES_DB"' database was completed successfully.'
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