101 lines
2.2 KiB
Bash
Executable File
101 lines
2.2 KiB
Bash
Executable File
#!/bin/sh
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# Script called
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set -e
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LOGFILE=~/log/evocluster.log
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MAIL="jdoe@example.com"
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mail_error() {
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echo "From: John Doe <jdoe@example.com>
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To: $MAIL
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Subject: [evocluster] check_cron_state.sh
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$1
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"|/usr/lib/sendmail -oi -t -f "$MAIL"
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}
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error() {
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echo -n "$(date +"%b %d %T") " >>$LOGFILE
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echo "ERROR: $1" |tee -a $LOGFILE >&2
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mail_error "$1"
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}
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info() {
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echo -n "$(date +"%b %d %T") " >>$LOGFILE
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echo "INFO: $1" |tee -a $LOGFILE
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}
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# Read the state file
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if [ -e ~/state ]; then
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. ~/state
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else
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error '~/state file does not exist, I dont know who am I!'
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exit 2
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fi
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# Check if all required variables are set
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if [ -n "$STATE" ] && [ -n "$IP" ]; then
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LOCAL_STATE=$STATE
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REMOTE_IP=$IP
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else
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error '$STATE or $IP not set in state file!'
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exit 2
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fi
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[ -n "$FORCE_CRON" ] && info 'FORCE_CRON=yes setted. Master is mandated to execute cron.'
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if [ "$STATE" = "slave" ]; then
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info 'Account is in state slave, execution of cron is disabled'
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exit 1
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else
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# env var $FORCE_CRON is set to yes, execute the cron
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[ "$FORCE_CRON" = "yes" ] && exit 0;
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### rajouter une règle sudo pour pouvoir exécuter ping ?
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# test if the remote server is alive
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#if ! ping -c1 -w1 $REMOTE_IP; then
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# error "Remote server $IP doesn't seem to be up, I don't know what to do...Add 'FORCE_CRON=yes' in ~/state file to execute user cron"
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# exit 1
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#fi
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###
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# try to connect to the remote server and check if it isn't a master
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REMOTE_STATE=$(mktemp)
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if ssh $REMOTE_IP [ -e ~/state ]; then
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ssh $REMOTE_IP cat ~/state >$REMOTE_STATE
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elif [ $? -eq 255 ]; then
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error "Failed to connect to slave ($REMOTE_IP)! I don't know what to do.."
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exit 1
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else
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error "State file does not exist on slave !"
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exit 1
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fi
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. $REMOTE_STATE
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rm -rf $REMOTE_STATE
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if [ -n "$STATE" ]; then
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REMOTE_STATE=$STATE
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else
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error '$STATE not set in remote state file!'
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exit 1
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fi
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if [ "$REMOTE_STATE" = "master" ]; then
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error "Remote server $IP is master too. (incoherent state)..."
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exit 1
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fi
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fi
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# Remote server is slave
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# State is coherent, execute the cron
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info 'Execute user cron'
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exit 0
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