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path: root/docker/auto-backup/daemon.bash
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#!/usr/bin/env bash

set -e

# Check I'm root.
if [[ $EUID -ne 0 ]]; then
    echo "This script must be run as root" 1>&2
    exit 1
fi

/coscli --version

# Check xz and tar
xz --version
tar --version

# do not echo next command
/coscli config set --secret_id "${CRUPEST_AUTO_BACKUP_COS_SECRET_ID}" --secret_key "${CRUPEST_AUTO_BACKUP_COS_SECRET_KEY}"
/coscli config add --alias "crupest-backup" --bucket "${CRUPEST_AUTO_BACKUP_BUCKET_NAME}" --region "${CRUPEST_AUTO_BACKUP_COS_REGION}"

function backup {
    # Output "Begin backup..." in yellow and restore default
    echo -e "\e[0;103m\e[K\e[1mBegin backup..." "\e[0m"

    # Get current time and convert it to YYYY-MM-DDTHH.MM.SS
    current_time=$(date +%Y-%m-%dT%H.%M.%S)
    echo "Current time: $current_time"
    echo "Create tar.xz for data..."

    # tar and xz /data to tmp
    tar -cJf /tmp/data.tar.xz -C / data

    # Output /tmp/data.tar.xz size
    du -h /tmp/data.tar.xz | cut -f1 | xargs echo "Size of data.tar.xz:"

    destination="cos://crupest-backup/$current_time.tar.xz"
    echo "Use coscli to upload data to $destination ..."
    echo "Bucket name: ${CRUPEST_AUTO_BACKUP_BUCKET_NAME}"
    echo "Bucket region: ${CRUPEST_AUTO_BACKUP_COS_REGION}"

    # upload to remote
    /coscli cp /tmp/data.tar.xz "$destination" 

    echo "Remove tmp file..."
    # remove tmp
    rm /tmp/data.tar.xz

    # echo "Backup finished!" in green and restore default
    echo -e "\e[0;102m\e[K\e[1mFinish backup!" "\e[0m"
}

echo "Initial delay: $CRUPEST_AUTO_BACKUP_INIT_DELAY"
sleep "$CRUPEST_AUTO_BACKUP_INIT_DELAY"

# forever loop
while true; do
    backup

    # sleep for CRUPEST_AUTO_BACKUP_INTERVAL
    echo "Sleep for $CRUPEST_AUTO_BACKUP_INTERVAL for next backup..."
    sleep "$CRUPEST_AUTO_BACKUP_INTERVAL"
done