Add script 'boot-autostart-lx-container.sh'.
This commit is contained in:
parent
15d3081866
commit
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485
boot-autostart-lx-container.sh
Executable file
485
boot-autostart-lx-container.sh
Executable file
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#!/usr/bin/env bash
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script_name="$(basename $(realpath $0))"
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working_dir="$(dirname $(realpath $0))"
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conf_file="${working_dir}/conf/${script_name%%.*}.conf"
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LOCK_DIR="/tmp/$(basename $0).$$.LOCK"
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log_file="${LOCK_DIR}/${script_name%%.*}.log"
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CUR_IFS="$IFS"
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backup_date="$(date +%Y-%m-%d-%H%M)"
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declare -a files_backuped_arr=()
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declare -a dirs_backuped_arr=()
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# ----------
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# Base Function(s)
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# ----------
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usage() {
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[[ -n "$1" ]] && error "$1"
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[[ $terminal ]] && echo -e "
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\033[1mUsage:\033[m
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$(basename $0)
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\033[1mDescription\033[m
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The script checks whether all LX Containers configured as autostart have been
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started. LX Containers that are not running will be started.
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\033[1mOptions\033[m
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No Options
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\033[1mFiles\033[m
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No Configuration File
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\033[1mExample:\033[m
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$(basename $0)
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"
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clean_up 1
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}
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clean_up() {
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# Perform program exit housekeeping
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rm -rf "$LOCK_DIR"
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blank_line
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exit $1
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}
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echononl(){
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if $terminal ; then
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echo X\\c > /tmp/shprompt$$
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if [ `wc -c /tmp/shprompt$$ | awk '{print $1}'` -eq 1 ]; then
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echo -e -n " $*\\c" 1>&2
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else
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echo -e -n " $*" 1>&2
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fi
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rm /tmp/shprompt$$
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fi
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}
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fatal(){
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echo ""
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if $terminal ; then
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echo -e " [ \033[31m\033[1mFatal\033[m ] $*"
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else
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echo -e " [ Fatal ] $*"
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fi
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echo ""
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if $terminal ; then
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echo -e " \033[1mScript terminated\033[m.."
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else
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echo -e " Script terminated.."
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fi
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echo ""
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rm -rf $LOCK_DIR
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exit 1
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}
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error (){
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echo ""
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if $terminal ; then
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echo -e " [ \033[31m\033[1mError\033[m ] $*"
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else
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echo " [ Error ] $*"
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fi
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echo ""
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}
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warn (){
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if $LOGGING || $terminal ; then
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echo ""
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if $terminal ; then
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echo -e " [ \033[33m\033[1mWarn\033[m ] $*"
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else
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echo " [ Warn ] $*"
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fi
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echo ""
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fi
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}
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info (){
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if $LOGGING || $terminal ; then
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echo ""
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if $terminal ; then
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echo -e " [ \033[32m\033[1mInfo\033[m ] $*"
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else
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echo " [ Info ] $*"
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fi
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echo ""
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fi
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}
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ok (){
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if $LOGGING || $terminal ; then
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echo ""
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if $terminal ; then
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echo -e " [ \033[32m\033[1mOk\033[m ] $*"
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else
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echo " [ Ok ] $*"
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fi
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echo ""
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fi
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}
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echo_done() {
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if $terminal ; then
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echo -e "\033[75G[ \033[32mdone\033[m ]"
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fi
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}
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echo_ok() {
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if $terminal ; then
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echo -e "\033[75G[ \033[32mok\033[m ]"
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fi
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}
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echo_warn() {
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if $terminal ; then
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echo -e "\033[75G[ \033[33mwarn\033[m ]"
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fi
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}
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echo_failed(){
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if $terminal ; then
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echo -e "\033[75G[ \033[1;31mfailed\033[m ]"
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fi
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}
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echo_skipped() {
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if $terminal ; then
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echo -e "\033[75G[ \033[90m\033[1mskipped\033[m ]"
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fi
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}
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echo_wait(){
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if $terminal ; then
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echo -en "\033[75G[ \033[5m\033[1m...\033[m ]"
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fi
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}
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trim() {
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local var="$*"
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var="${var#"${var%%[![:space:]]*}"}" # remove leading whitespace characters
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var="${var%"${var##*[![:space:]]}"}" # remove trailing whitespace characters
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echo -n "$var"
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}
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blank_line() {
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if $terminal ; then
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echo ""
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fi
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}
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containsElement () {
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local e
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for e in "${@:2}"; do [[ "$e" == "$1" ]] && return 0; done
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return 1
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}
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# - Backup file or directory
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# -
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backup() {
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is_directory=false
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if [[ -z "$1" ]] ; then
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error "No file/directory for backup given!"
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return
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elif [[ -h "$1" ]] ; then
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_source="$(realpath $1)"
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warn "'$1' is a symlink to $_source."
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elif [[ ! -d "$1" ]] && [[ ! -f "$1" ]] ; then
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warn "'$1' not found. Backup skipped."
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return
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else
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_source="$(realpath $1)"
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fi
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if [[ -d "$_source" ]]; then
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is_directory=true
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echononl "Backup directory '$_source' .."
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else
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echononl "Backup file '$_source' .."
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fi
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cp -a "$_source" "${_source}.$backup_date" > $log_file 2>&1
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if [[ $? -eq 0 ]] ; then
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echo_ok
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if $is_directory ; then
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dirs_backuped_arr+=("$_source")
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else
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files_backuped_arr+=("$_source")
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fi
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else
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echo_failed
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error "$(cat "$log_file")"
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fi
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}
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# - Remove script generated backups, if source wasn't changed
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# -
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rm_unchanged_backup() {
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if [[ ${#files_backuped_arr[@]} -gt 0 ]] ; then
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for _file in "${files_backuped_arr[@]}" ; do
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if $(diff "$_file" "${_file}.$backup_date" > /dev/null 2>&1) ; then
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echononl "File '$(basename "${_file}")' wasn't changed.\n Delete the previous generated backup. .."
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rm "${_file}.$backup_date" > "$log_file" 2>&1
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if [[ $? -eq 0 ]]; then
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echo_ok
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else
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echo_failed
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error "$(cat "$log_file")"
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fi
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blank_line
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fi
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done
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fi
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if [[ ${#dirs_backuped_arr[@]} -gt 0 ]] ; then
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for _dir in "${dirs_backuped_arr[@]}" ; do
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if $(diff -Nur "$_dir" "${_dir}.$backup_date" > /dev/null 2>&1) ; then
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echononl "Directory '$(basename "${_dir}")' wasn't changed.\n Delete the previous generated backup. .."
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rm -rf "${_dir}.$backup_date" > "$log_file" 2>&1
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if [[ $? -eq 0 ]]; then
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echo_ok
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else
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echo_failed
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error "$(cat "$log_file")"
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fi
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blank_line
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fi
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done
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fi
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}
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# ----------
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# - Jobhandling
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# ----------
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# - Run 'clean_up' for signals SIGHUP SIGINT SIGTERM
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# -
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trap clean_up SIGHUP SIGINT SIGTERM
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# - Create lock directory '$LOCK_DIR"
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#
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mkdir "$LOCK_DIR"
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# ----------
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# - Some checks ..
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# ----------
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# - Running in a terminal?
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# -
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if [[ -t 1 ]] ; then
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terminal=true
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else
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terminal=false
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fi
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# -Is systemd supported on this system?
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# -
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systemd_supported=false
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systemd=$(which systemd)
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systemctl=$(which systemctl)
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if [[ -n "$systemd" ]] && [[ -n "$systemctl" ]] ; then
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systemd_supported=true
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fi
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# - Print help?
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# -
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if [[ "$(trim $*)" = "-h" ]] || [[ "$(trim $*)" = "--help" ]] ; then
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usage
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fi
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if [[ -z "$(which basename)" ]]; then
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fatal 'It seems "basename" is not installed, but needed!'
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fi
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if [[ -z "$(which realpath)" ]]; then
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fatal 'It seems "realpath" is not installed, but needed!'
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fi
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# ==========
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# - Begin Main Script
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# ==========
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# ----------
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# - Headline
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# ----------
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if $terminal ; then
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echo ""
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echo -e "\033[1m----------\033[m"
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echo -e "\033[32m\033[1mRunning script \033[m\033[1m$script_name\033[32m .. \033[m"
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echo -e "\033[1m----------\033[m"
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fi
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# ----------
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# Read Configurations from $conf_file
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# ----------
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# - Give your default values here
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# -
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DEFAULT_LOGGING=false
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DEFAUL_LXC_ROOT_DIR=/data/lxc
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if [[ -f "$conf_file" ]]; then
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source "$conf_file"
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else
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warn "No configuration file '$conf_file' present.\n
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Loading default values.."
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fi
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[[ -n "$LXC_ROOT_DIR" ]] || LXC_ROOT_DIR="${DEFAUL_LXC_ROOT_DIR}"
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[[ -n "$LOGGING" ]] || LOGGING="${DEFAULT_LOGGING}"
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# ----------
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# - Some pre-script tasks ..
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# ----------
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if $terminal ; then
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echo ""
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echo ""
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echo -e " \033[1mDoing some pre-script tasks ..\033[m"
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echo ""
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fi
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declare -a lx_container_all_arr=()
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declare -a lx_container_autostart_arr=()
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declare -a lx_container_not_started_arr=()
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declare -a error_msg_arr=()
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declare -a info_msg_arr=()
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echononl "Gather all configured LX-Container .."
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for _container in $(lxc-ls) ; do
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lx_container_all_arr+=("$_container")
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done
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echo_done
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#lx_container_all_arr+=("test5")
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#lx_container_all_arr+=("test7")
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echononl "Gather LX-Container configured as 'autostart'.."
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_failed=false
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for _container in ${lx_container_all_arr[@]} ; do
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if [[ ! -d "${LXC_ROOT_DIR}/${_container}" ]] ; then
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_failed=true
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error_msg_arr+=("")
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IFS='§' error_msg_arr+=("No Container named \033[1m${_container}\033[m found!")
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continue
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fi
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if [[ ! -f "${LXC_ROOT_DIR}/${_container}/config" ]]; then
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_failed=true
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error_msg_arr+=("")
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IFS='§' error_msg_arr+="No Cocnfiguration for Container named \033[1m${_container}\033[m found!"
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continue
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fi
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if $(grep -E -q "^\s*lxc.start.auto\s*=\s*1" "${LXC_ROOT_DIR}/${_container}/config" 2> $log_file) ; then
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lx_container_autostart_arr+=("$_container")
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fi
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if [[ -s "$log_file" ]] ; then
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if ! containsElement "$(cat $log_file)" "${error_msg_arr[@]}" ; then
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_failed=true
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error_msg_arr+=("")
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IFS='§' error_msg_arr+=("$(cat $log_file)")
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> $log_file
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fi
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continue
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fi
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done
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if $_failed ; then
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echo_failed
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for _msg in ${error_msg_arr[@]} ; do
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error $_msg
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done
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for _container in ${lx_container_autostart_arr[@]} ; do
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info "Added Contaimer \033[1m${_container}\033[m."
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done
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else
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echo_done
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fi
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error_msg_arr=()
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_failed=false
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echononl "Gather LX-Container NOT started.."
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for _container in ${lx_container_autostart_arr[@]} ; do
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if ! $(lxc-info -n "$_container"| grep -E -q "^\s*PID:" 2> /dev/null) ; then
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lx_container_not_started_arr+=("$_container")
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fi
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if [[ -s "$log_file" ]] ; then
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_faile=true
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error_msg_arr+=("$(cat $log_file)")
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fi
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done
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if $_failed ; then
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echo_failed
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for _msg in ${error_msg_arr[@]} ; do
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error $_msg
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done
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else
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echo_done
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fi
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# ----------
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# - Main part of script
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# ----------
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if $terminal ; then
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echo ""
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echo ""
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echo -e " \033[1mMain part of script ..\033[m"
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echo ""
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fi
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if [[ ${#lx_container_not_started_arr[@]} -lt 1 ]]; then
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info "All autotart configured LX-Container are running"
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clean_up 0
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fi
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_falied=false
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for _container in ${lx_container_not_started_arr[@]} ; do
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echononl "Goimg to start LX-Container \033[1m${_container}\033[m .."
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lxc-start -d -n $_container > $log_file 2>&1
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if [[ $? -eq 0 ]] ; then
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echo_ok
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else
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echo_failed
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_failed=true
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error "$(cat $log_file)"
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fi
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done
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if $_failed ; then
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clean_up 1
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else
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clean_up 0
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fi
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16
conf/boot-autostart-lx-container.conf.sample
Normal file
16
conf/boot-autostart-lx-container.conf.sample
Normal file
@ -0,0 +1,16 @@
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## ===============================================================
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## - Configuration File for "boot-autostart-lx-container.sh" Script
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## ================================================================
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# - LOGGING
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# -
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#LOGGING=false
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# - LXC_ROOT_DIR
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# -
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# - The directory where all the LX-Containers are stored.
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# -
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# - Defaults to: LXC_ROOT_DIR="/var/lib/lxc"
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# -
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#LXC_ROOT_DIR="/var/lib/lxc"
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