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#!/bin/sh
if [ -z "$SCW_ACCESS_KEY" ] || [ -z "$SCW_SECRET_KEY" ]; then
echo "SCW_ACCESS_KEY and SCW_SECRET_KEY must be set"
exit 1
fi
if [ -z "$BUCKET_NAME" ]; then
echo "BUCKET_NAME must be set"
exit 1
fi
if [ -z "$APP_NAME" ]; then
echo "APP_NAME must be set"
exit 1
fi
if [ -z "$BACKUP_RETENTION" ]; then
echo "BACKUP_RETENTION must be set"
exit 1
fi
# install required packages
apk update
apk add gettext
# Create rclone config (Scaleway)
envsubst < /etc/rclone.conf.tmpl > /tmp/rclone.conf
unset SCW_ACCESS_KEY
unset SCW_SECRET_KEY
# Create backup
echo "Creating backup of /src directory"
tar -zcvpf /backup/$APP_NAME-files-`date +\"%Y%m%d\"`.tar.gz /src
# Remove old backups
BACKUP_FILE_PATTERN="$APP_NAME-files-*.tar.gz"
echo "Removing old backups matching pattern: $BACKUP_FILE_PATTERN"
find /backup -type f -name "$BACKUP_FILE_PATTERN" -mtime +$BACKUP_RETENTION | xargs --no-run-if-empty rm
# Upload to Scaleway
echo "Uploading backup to Scaleway bucket"
/usr/local/bin/rclone --config=/tmp/rclone.conf sync --progress /backup "scaleway:$BUCKET_NAME/$APP_NAME-backup"