High-Availability (Hochverfügbarkeit) der Home-Automation

#!/bin/bash # ha.sh 23Feb2024/uk # # High-Availability # cd $HOME/smarthome/HA # # Es kam am 23. Feb. 2024 vor, dass das File /etc/resolv.conf "leer" war: # grep -q 192.168.0.1 /etc/resolv.conf if test $? -ne 0 ; then echo "`uname -n`: /etc/resolv.conf ist 'leer' - Neustart! `date +%d.%m.%Y_%H:%M`" >> neustart.log sudo shutdown -r 0 fi # source PRIMARY.MASTER #echo "PRIMARY_MASTER=$PRIMARY_MASTER" # source MASTER.file if test "$MASTER" = "no" ; then sleep 2 fi # othermachine="none" thismachine=`uname -n` statusothermachine="ok" # if test "$thismachine" = "raspi" ; then othermachine="raspi2" fi if test "$thismachine" = "raspi2" ; then othermachine="raspi" fi if test "$othermachine" = "none" ; then # write/append to standard error echo "Machine=$thismachine - weder raspi noch raspi2 --> exit! `date +%d.%m.%Y_%H:%M`" >&2 exit 1 fi # hellofile=hello_from_$thismachine touch $hellofile # otherhellofile=hello_from_$othermachine # foblack="" fowhite="" fontend="" # statusthismachine="ok" # scp -p $hellofile $othermachine:smarthome/HA/ >/dev/null if test $? -ne 0 ; then echo "$thismachine meldet: $othermachine nicht erreichbar! `date +%d.%m.%Y_%H:%M`" statusothermachine="notok" else ## echo "$thismachine meldet: $othermachine erreichbar!" : fi rm -f result.txt find -name $otherhellofile -mmin +4 > result.txt if test ! -s result.txt ; then ## echo "$otherhellofile ist jünger als 4 Min." othermcol="green" othermfont=$fowhite : else echo "$otherhellofile ist älter als 4 Min. - `date +%d.%m.%Y_%H:%M`" statusothermachine="notok" othermcol="red" othermfont=$foblack fi # if test "$thismachine" = "$PRIMARY_MASTER" ; then echo "MASTER='yes'" > MASTER.file_new echo "SLAVE=$othermachine" >> MASTER.file_new thismcol="green" thismfont=$fowhite else if test "$statusothermachine" = "notok" ; then echo "MASTER='yes'" > MASTER.file echo "SLAVE=$othermachine" >> MASTER.file_new echo "$thismachine wird Master - `date +%d.%m.%Y_%H:%M`" thismcol="green" thismfont=$fowhite othermcol="red" othermfont=$foblack else echo "MASTER='no'" > MASTER.file_new echo "SLAVE=$thismachine" >> MASTER.file_new thismcol="green" thismfont=$fowhite othermcol="green" othermfont=$fowhite fi fi # mv MASTER.file_new MASTER.file # source MASTER.file if test "$MASTER" = "yes" ; then thismachinemaster="YES" othermachinemaster="no" else thismachinemaster="no" othermachinemaster="YES" fi echo "" > ha_new.html echo "High-Availabilty-Status " >> ha_new.html echo "`date +%d.%m.%Y_%H:%M`" >> ha_new.html echo "" >> ha_new.html ##echo "`date +%d.%m.%Y_%H:%M` " >> ha_new.html ##echo "$thismachine MASTER=$MASTER " >> ha_new.html ##echo "$othermachine $statusothermachine " >> ha_new.html ##echo "$othermachine MASTER=no " >> ha_new.html echo "" >> ha_new.html echo "<table border=1 cellpadding=3 cellspacing=9>" >> ha_new.html echo "<tr>" >> ha_new.html echo "<td>$foblack Machine</td><td align=center bgcolor=$thismcol>$thismfont $thismachine</td><td align=center bgcolor=$othermcol>$othermfont $othermachine</td>" >> ha_new.html echo "</tr>" >> ha_new.html echo "<tr>" >> ha_new.html echo "<td>$foblack Master</td><td align=center>$foblack $thismachinemaster</td><td align=center>$foblack $othermachinemaster</td>" >> ha_new.html echo "</tr>" >> ha_new.html echo "<tr>" >> ha_new.html echo "<td>$foblack Erreichbar</td><td align=center bgcolor=$thismcol>$thismfont $statusthismachine</td><td align=center bgcolor=$othermcol>$othermfont $statusothermachine</td>" >> ha_new.html echo "</tr>" >> ha_new.html echo "</table>" >> ha_new.html echo "" >> ha_new.html ##fi # mv ha_new.html ha.html #


MASTER='yes'
SLAVE=raspi2


MASTER='no'
SLAVE=raspi

source $HOME/smarthome/HA/MASTER.file if test "$MASTER" = "no" ; then echo "Not MASTER - exit! `date +%d.%m.%Y_%H:%M`" exit fi

scp -p -o ConnectTimeout=5 Daten.file $SLAVE:smarthome/Verzeichnis_auf_slave/

#!/bin/bash # saveRASPIS_3.sh 17Jun2024/uk # # Erstellt mit Hilfe von ChatGPT # # Verzeichnisse BASE_DIR="$HOME/RASPIsave" ##MACHINES=("raspi" "raspi2" "raspi3") MACHINES=("raspi" "raspi2") USER=$LOGNAME cd $BASE_DIR || exit 1 # Farben definieren RED='\033[0;31m' NC='\033[0m' # Keine Farbe # Funktion zum Synchronisieren von Verzeichnissen sync_dirs() { local machine=$1 local paths=( "/home/$USER" "/var/www/html" "/etc/network/if-up.d" "/usr/lib/cgi-bin" "/usr/local/bin" "/etc/webhook.conf" "/etc/systemd/system/webhook.service" ) for path in "${paths[@]}"; do local dest_dir="$BASE_DIR/$machine${path%/*}" mkdir -p "$dest_dir" # Prüfen, ob die Datei oder das Verzeichnis auf dem Remote-Server existiert ssh "$USER@$machine" "test -e $path" if [ $? -eq 0 ]; then rsync -avHx --delete "$USER@$machine:$path" "$dest_dir/" else echo -e "${RED}!!! $path does not exist on $machine${NC}" fi done } # Synchronisieren aller Maschinen for machine in "${MACHINES[@]}"; do sync_dirs "$machine" done # Finden und Auflisten von *errlog-Dateien echo " " echo "*errlog - Files grösser als Null von OCTAVE: " echo " " find "$BASE_DIR" -name "*errlog" -path "*octave*" -type f -size +0 -exec ls -l {} \; echo " " echo "*errlog - Files grösser als Null OHNE OCTAVE: " echo " " find "$BASE_DIR" -name "*errlog" ! -path "*octave*" -type f -size +0 -exec ls -l {} \; #

#!/bin/bash # differ.sh 17Jun2024/uk # # Erstellt mit Hilfe von ChatGPT # cd $HOME/RASPIsave # Verzeichnisse dir1="raspi" dir2="raspi2" # Farben definieren RED='\033[0;31m' NC='\033[0m' # Keine Farbe # Function to compare files in both directories compare_files() { ext=$1 echo "Comparing *.$ext Files:" # Check files in dir1 against dir2 for file in $(find $dir1/ -type f -name "*.$ext" | grep -v makeLink.sh | grep -v _alt | grep -v _new | cut -d"/" -f 2-); do if [ -f "$dir2/$file" ]; then if ! diff "$dir1/$file" "$dir2/$file"; then echo -e "${RED}^^^Difference found in: $dir1/$file${NC}" fi else echo -e "${RED}!!! File missing in $dir2: $file${NC}" fi done # Check files in dir2 against dir1 for file in $(find $dir2/ -type f -name "*.$ext" | grep -v makeLink.sh | grep -v _alt | grep -v _new | cut -d"/" -f 2-); do if [ ! -f "$dir1/$file" ]; then echo -e "${RED}!!! File missing in $dir1: $file${NC}" fi done } # Compare different file extensions compare_files "sh" compare_files "m" compare_files "f" compare_files "exe" # Compare specific /etc files echo "Comparing some /etc Files:" for file in etc/webhook.conf etc/systemd/system/webhook.service; do if [ -f "$dir1/$file" ]; then if [ -f "$dir2/$file" ]; then if ! diff "$dir1/$file" "$dir2/$file"; then echo -e "${RED}^^^Difference found in: $dir1/$file${NC}" fi else echo -e "${RED}!!! File missing in $dir2: $file${NC}" fi else if [ -f "$dir2/$file" ]; then echo -e "${RED}!!! File missing in $dir1: $file${NC}" fi fi done #