48 lines
1.2 KiB
Bash
48 lines
1.2 KiB
Bash
#! /bin/bash
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#
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# psql.sh
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# Backup script for PostgreSQL. Meant to be sourced by our main backup script
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# Copyright (C) 2020 Vintage Salt <rehashedsalt@cock.li>
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#
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# Distributed under terms of the MIT license.
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#
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set -e
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export OUTDIR="$BACKUPSDIR/psql"
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retention=5 # 5-day retention period
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# Sanity checks
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if [ -z "$BACKUPSDIR" ]; then
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log "BACKUPSDIR was undefined. Run the main backup script instead of this one."
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return 1
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fi
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if ! [ -d "$OUTDIR" ]; then
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if ! mkdir "$OUTDIR"; then
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log "Unable to find or create output directory: $OUTDIR"
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return 2
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fi
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fi
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# Enforce permissions on our output directory since the git user will need them
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chown root. "$OUTDIR"
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chmod 770 "$OUTDIR"
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# Purge oldest backup if we need to
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currentbackupcount="$(ls -1 "$OUTDIR" | wc -l)"
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if (( currentbackupcount >= retention )); then
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lastbackup="$(find "$OUTDIR" -name \*.pgdump.gz 2>/dev/null | sort | head -n 1)"
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lastbackup="${lastbackup%-*.gz}"
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if [ -f "$file" ]; then
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log "Removing old backups for: $lastbackup"
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for file in "$lastbackup"*; do
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log "Removing old backup part: $file"
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rm "$file"
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done
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fi
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fi
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# WE MAKE BACKUP NOW SERGEI
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date="$(date -Iseconds)"
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log "Creating DB backup"
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sudo -Hu postgres pg_dumpall | gzip > "$OUTDIR/pgdumpall-$date.pgdump.gz"
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