backup-containers/backup/init.sh

startup_check() {

    if [[ -z "$(ls /volumes)" ]]; then
        echo "Nothing in /volumes"
        exit 1
    fi
    
    if [[ ! -e "/.env" ]]; then
        echo Missing .env file
        exit 1
    else
        source /.env
        if [[ -z "$NAME" ]]; then
            echo Missing NAME in .env
            exit 1
        fi
        if [[ -z "$HOST" ]]; then
            echo Missing HOST in .env
            exit 1
        fi
        if [[ ! -e "~/.ssh/known_hosts" ]]; then
            echo "Running ssh keyscan"
            mkdir -p ~/.ssh
            ssh-keyscan $HOST > ~/.ssh/known_hosts
        fi
    fi

    if [[ ! -e "/id" ]]; then
        echo Missing ssh identity file
        exit 1
    fi

    echo Startup check passed
}

startup_check
/usr/sbin/cron -f