66 lines
1.5 KiB
Bash
66 lines
1.5 KiB
Bash
#! /bin/bash
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#
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# backup.sh
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# General-purpose backup script that accepts subtasks
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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 BACKUPSDIR="/backups"
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export OUTDIR="$BACKUPSDIR/out"
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export MODULESDIR="/opt/backups/modules"
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export DATE="$(date -Iseconds)"
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# Helper functions
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log() {
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[ -z "$1" ] && return 1
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printf "$(date -Iseconds): $1\n"
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}
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# Sanity checks
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if ! [ -d "$MODULESDIR" ]; then
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log "Unable to find modules directory: $MODULESDIR"
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exit 1
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fi
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# Source an RC, if we have it
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if [ -r "$MODULESDIR/backuprc" ]; then
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source "$MODULESDIR/backuprc"
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fi
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# More sanity checks
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if ! [ -d "$BACKUPSDIR" ]; then
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log "Unable to find backups directory: $BACKUPSDIR"
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exit 2
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fi
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# Do the do
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log "Beginning backups"
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for file in "$MODULESDIR"/*; do
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# Just keep going if we don't have any tasks to do
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[ -f "$file" ] || continue
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# Execute the module and alert if it fails
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log "Executing module: $file"
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(
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# Define a log function for our module to use
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log() {
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[ -z "$1" ] && return 1
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printf "$(date -Iseconds): $1\n"
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}
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source "$file"
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) || {
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log "Error executing module: $file"
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}
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done
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# If we have a fancy schmancy bucket, use it
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s3bucket="{{ aws_backup_bucket }}"
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if command -v aws > /dev/null 2>&1 && aws s3 ls "s3://$s3bucket" > /dev/null 2>&1; then
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log "Moving files to S3 bucket $s3bucket"
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nice -n 10 aws s3 mv "$BACKUPSDIR" "s3://$s3bucket" \
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--recursive \
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--only-show-errors \
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--exclude "*.log" \
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--storage-class STANDARD
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fi
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