diff --git a/boot-autostart-lx-container.sh b/boot-autostart-lx-container.sh new file mode 100755 index 0000000..9cefb28 --- /dev/null +++ b/boot-autostart-lx-container.sh @@ -0,0 +1,485 @@ +#!/usr/bin/env bash + +script_name="$(basename $(realpath $0))" +working_dir="$(dirname $(realpath $0))" + +conf_file="${working_dir}/conf/${script_name%%.*}.conf" + +LOCK_DIR="/tmp/$(basename $0).$$.LOCK" +log_file="${LOCK_DIR}/${script_name%%.*}.log" + +CUR_IFS="$IFS" + +backup_date="$(date +%Y-%m-%d-%H%M)" +declare -a files_backuped_arr=() +declare -a dirs_backuped_arr=() + +# ---------- +# Base Function(s) +# ---------- + +usage() { + + + [[ -n "$1" ]] && error "$1" + + + [[ $terminal ]] && echo -e " +\033[1mUsage:\033[m + + $(basename $0) + +\033[1mDescription\033[m + + The script checks whether all LX Containers configured as autostart have been + started. LX Containers that are not running will be started. + +\033[1mOptions\033[m + + No Options + +\033[1mFiles\033[m + + No Configuration File + +\033[1mExample:\033[m + + $(basename $0) + +" + + clean_up 1 + +} + +clean_up() { + + # Perform program exit housekeeping + rm -rf "$LOCK_DIR" + blank_line + exit $1 +} + + +echononl(){ + if $terminal ; then + echo X\\c > /tmp/shprompt$$ + if [ `wc -c /tmp/shprompt$$ | awk '{print $1}'` -eq 1 ]; then + echo -e -n " $*\\c" 1>&2 + else + echo -e -n " $*" 1>&2 + fi + rm /tmp/shprompt$$ + fi +} + + +fatal(){ + echo "" + if $terminal ; then + echo -e " [ \033[31m\033[1mFatal\033[m ] $*" + else + echo -e " [ Fatal ] $*" + fi + echo "" + if $terminal ; then + echo -e " \033[1mScript terminated\033[m.." + else + echo -e " Script terminated.." + fi + echo "" + rm -rf $LOCK_DIR + exit 1 +} + +error (){ + echo "" + if $terminal ; then + echo -e " [ \033[31m\033[1mError\033[m ] $*" + else + echo " [ Error ] $*" + fi + echo "" +} + +warn (){ + if $LOGGING || $terminal ; then + echo "" + if $terminal ; then + echo -e " [ \033[33m\033[1mWarn\033[m ] $*" + else + echo " [ Warn ] $*" + fi + echo "" + fi +} + +info (){ + if $LOGGING || $terminal ; then + echo "" + if $terminal ; then + echo -e " [ \033[32m\033[1mInfo\033[m ] $*" + else + echo " [ Info ] $*" + fi + echo "" + fi +} + +ok (){ + if $LOGGING || $terminal ; then + echo "" + if $terminal ; then + echo -e " [ \033[32m\033[1mOk\033[m ] $*" + else + echo " [ Ok ] $*" + fi + echo "" + fi +} + +echo_done() { + if $terminal ; then + echo -e "\033[75G[ \033[32mdone\033[m ]" + fi +} +echo_ok() { + if $terminal ; then + echo -e "\033[75G[ \033[32mok\033[m ]" + fi +} +echo_warn() { + if $terminal ; then + echo -e "\033[75G[ \033[33mwarn\033[m ]" + fi +} +echo_failed(){ + if $terminal ; then + echo -e "\033[75G[ \033[1;31mfailed\033[m ]" + fi +} +echo_skipped() { + if $terminal ; then + echo -e "\033[75G[ \033[90m\033[1mskipped\033[m ]" + fi +} +echo_wait(){ + if $terminal ; then + echo -en "\033[75G[ \033[5m\033[1m...\033[m ]" + fi +} + +trim() { + local var="$*" + var="${var#"${var%%[![:space:]]*}"}" # remove leading whitespace characters + var="${var%"${var##*[![:space:]]}"}" # remove trailing whitespace characters + echo -n "$var" +} + +blank_line() { + if $terminal ; then + echo "" + fi +} + +containsElement () { + local e + for e in "${@:2}"; do [[ "$e" == "$1" ]] && return 0; done + return 1 +} + +# - Backup file or directory +# - +backup() { + + is_directory=false + + if [[ -z "$1" ]] ; then + error "No file/directory for backup given!" + return + elif [[ -h "$1" ]] ; then + _source="$(realpath $1)" + warn "'$1' is a symlink to $_source." + elif [[ ! -d "$1" ]] && [[ ! -f "$1" ]] ; then + warn "'$1' not found. Backup skipped." + return + else + _source="$(realpath $1)" + fi + + if [[ -d "$_source" ]]; then + is_directory=true + echononl "Backup directory '$_source' .." + else + echononl "Backup file '$_source' .." + fi + + cp -a "$_source" "${_source}.$backup_date" > $log_file 2>&1 + if [[ $? -eq 0 ]] ; then + echo_ok + if $is_directory ; then + dirs_backuped_arr+=("$_source") + else + files_backuped_arr+=("$_source") + fi + else + echo_failed + error "$(cat "$log_file")" + fi +} + + +# - Remove script generated backups, if source wasn't changed +# - +rm_unchanged_backup() { + + if [[ ${#files_backuped_arr[@]} -gt 0 ]] ; then + for _file in "${files_backuped_arr[@]}" ; do + if $(diff "$_file" "${_file}.$backup_date" > /dev/null 2>&1) ; then + echononl "File '$(basename "${_file}")' wasn't changed.\n Delete the previous generated backup. .." + rm "${_file}.$backup_date" > "$log_file" 2>&1 + if [[ $? -eq 0 ]]; then + echo_ok + else + echo_failed + error "$(cat "$log_file")" + fi + blank_line + fi + done + fi + if [[ ${#dirs_backuped_arr[@]} -gt 0 ]] ; then + for _dir in "${dirs_backuped_arr[@]}" ; do + if $(diff -Nur "$_dir" "${_dir}.$backup_date" > /dev/null 2>&1) ; then + echononl "Directory '$(basename "${_dir}")' wasn't changed.\n Delete the previous generated backup. .." + rm -rf "${_dir}.$backup_date" > "$log_file" 2>&1 + if [[ $? -eq 0 ]]; then + echo_ok + else + echo_failed + error "$(cat "$log_file")" + fi + blank_line + fi + done + fi +} + + + +# ---------- +# - Jobhandling +# ---------- + +# - Run 'clean_up' for signals SIGHUP SIGINT SIGTERM +# - +trap clean_up SIGHUP SIGINT SIGTERM + +# - Create lock directory '$LOCK_DIR" +# +mkdir "$LOCK_DIR" + + +# ---------- +# - Some checks .. +# ---------- + +# - Running in a terminal? +# - +if [[ -t 1 ]] ; then + terminal=true +else + terminal=false +fi + +# -Is systemd supported on this system? +# - +systemd_supported=false +systemd=$(which systemd) +systemctl=$(which systemctl) + +if [[ -n "$systemd" ]] && [[ -n "$systemctl" ]] ; then + systemd_supported=true +fi + +# - Print help? +# - +if [[ "$(trim $*)" = "-h" ]] || [[ "$(trim $*)" = "--help" ]] ; then + usage +fi + +if [[ -z "$(which basename)" ]]; then + fatal 'It seems "basename" is not installed, but needed!' +fi + +if [[ -z "$(which realpath)" ]]; then + fatal 'It seems "realpath" is not installed, but needed!' +fi + + +# ========== +# - Begin Main Script +# ========== + +# ---------- +# - Headline +# ---------- + +if $terminal ; then + echo "" + echo -e "\033[1m----------\033[m" + echo -e "\033[32m\033[1mRunning script \033[m\033[1m$script_name\033[32m .. \033[m" + echo -e "\033[1m----------\033[m" +fi + + +# ---------- +# Read Configurations from $conf_file +# ---------- + + +# - Give your default values here +# - +DEFAULT_LOGGING=false +DEFAUL_LXC_ROOT_DIR=/data/lxc + + +if [[ -f "$conf_file" ]]; then + source "$conf_file" +else + warn "No configuration file '$conf_file' present.\n + Loading default values.." +fi + +[[ -n "$LXC_ROOT_DIR" ]] || LXC_ROOT_DIR="${DEFAUL_LXC_ROOT_DIR}" +[[ -n "$LOGGING" ]] || LOGGING="${DEFAULT_LOGGING}" + + + +# ---------- +# - Some pre-script tasks .. +# ---------- + +if $terminal ; then + echo "" + echo "" + echo -e " \033[1mDoing some pre-script tasks ..\033[m" + echo "" +fi + + +declare -a lx_container_all_arr=() +declare -a lx_container_autostart_arr=() +declare -a lx_container_not_started_arr=() +declare -a error_msg_arr=() +declare -a info_msg_arr=() + +echononl "Gather all configured LX-Container .." +for _container in $(lxc-ls) ; do + lx_container_all_arr+=("$_container") +done +echo_done + +#lx_container_all_arr+=("test5") +#lx_container_all_arr+=("test7") + +echononl "Gather LX-Container configured as 'autostart'.." +_failed=false +for _container in ${lx_container_all_arr[@]} ; do + if [[ ! -d "${LXC_ROOT_DIR}/${_container}" ]] ; then + _failed=true + error_msg_arr+=("") + IFS='§' error_msg_arr+=("No Container named \033[1m${_container}\033[m found!") + continue + fi + if [[ ! -f "${LXC_ROOT_DIR}/${_container}/config" ]]; then + _failed=true + error_msg_arr+=("") + IFS='§' error_msg_arr+="No Cocnfiguration for Container named \033[1m${_container}\033[m found!" + continue + fi + if $(grep -E -q "^\s*lxc.start.auto\s*=\s*1" "${LXC_ROOT_DIR}/${_container}/config" 2> $log_file) ; then + lx_container_autostart_arr+=("$_container") + fi + if [[ -s "$log_file" ]] ; then + if ! containsElement "$(cat $log_file)" "${error_msg_arr[@]}" ; then + _failed=true + error_msg_arr+=("") + IFS='§' error_msg_arr+=("$(cat $log_file)") + > $log_file + fi + continue + fi + + +done + +if $_failed ; then + echo_failed + for _msg in ${error_msg_arr[@]} ; do + error $_msg + done + for _container in ${lx_container_autostart_arr[@]} ; do + info "Added Contaimer \033[1m${_container}\033[m." + done +else + echo_done +fi + +error_msg_arr=() +_failed=false +echononl "Gather LX-Container NOT started.." +for _container in ${lx_container_autostart_arr[@]} ; do + if ! $(lxc-info -n "$_container"| grep -E -q "^\s*PID:" 2> /dev/null) ; then + lx_container_not_started_arr+=("$_container") + fi + if [[ -s "$log_file" ]] ; then + _faile=true + error_msg_arr+=("$(cat $log_file)") + fi +done + +if $_failed ; then + echo_failed + for _msg in ${error_msg_arr[@]} ; do + error $_msg + done +else + echo_done +fi + + +# ---------- +# - Main part of script +# ---------- + +if $terminal ; then + echo "" + echo "" + echo -e " \033[1mMain part of script ..\033[m" + echo "" +fi + +if [[ ${#lx_container_not_started_arr[@]} -lt 1 ]]; then + info "All autotart configured LX-Container are running" + clean_up 0 +fi + +_falied=false +for _container in ${lx_container_not_started_arr[@]} ; do + echononl "Goimg to start LX-Container \033[1m${_container}\033[m .." + lxc-start -d -n $_container > $log_file 2>&1 + if [[ $? -eq 0 ]] ; then + echo_ok + else + echo_failed + _failed=true + error "$(cat $log_file)" + fi +done + +if $_failed ; then + clean_up 1 +else + clean_up 0 +fi diff --git a/conf/boot-autostart-lx-container.conf.sample b/conf/boot-autostart-lx-container.conf.sample new file mode 100644 index 0000000..07c12ba --- /dev/null +++ b/conf/boot-autostart-lx-container.conf.sample @@ -0,0 +1,16 @@ + +## =============================================================== +## - Configuration File for "boot-autostart-lx-container.sh" Script +## ================================================================ + +# - LOGGING +# - +#LOGGING=false + +# - LXC_ROOT_DIR +# - +# - The directory where all the LX-Containers are stored. +# - +# - Defaults to: LXC_ROOT_DIR="/var/lib/lxc" +# - +#LXC_ROOT_DIR="/var/lib/lxc"