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#!/bin/bash
#Monit setup script for opnfv jnlp slave connections
test_firewall() {
echo "testing that the firewall is open for us at build.opnfv.org"
test=$(echo "blah"| nc -w 4 build.opnfv.org 57387 > /dev/null 2>&1; echo $?)
if [[ $test == 0 ]]; then
echo "Firewall is open for us at build.opnfv.org"
exit 0
else
cat << EOF
LF firewall not open, please send a report to helpdesk with your gpg key attached, or better yet upload it to the key servers. (I should be able to find it with gpg --search-keys your@company.email.com
opnfv-helpdesk@rt.linuxfoundation.org
Jenkins Home: $jenkinshome
Jenkins User: $jenkinsuser
Slave Name: $slave_name
IP Address: $(curl -s http://icanhazip.com)
EOF
exit 1
fi
}
main () {
dir=$(cd $(dirname $0); pwd)
#tests
if [[ -z $jenkinsuser || -z $jenkinshome ]]; then
echo "jenkinsuser or home not defined, please edit this file to define it"
exit 1
fi
if [[ -z $slave_name || -z $slave_secret ]]; then
echo "slave name or secret not defined, please edit this file to define it"
exit 1
fi
if [[ $(whoami) != "root" && $(whoami) != "$jenkinsuser" ]]; then
echo "This script must be run as user root or jenkins user"
exit 1
fi
if [[ $distro == Debian || $distro == Ubuntu ]]; then
monitconfdir="/etc/monit/conf.d/"
elif [[ $distro == Fedora || $distro == CentOS || $distro == Redhat ]]; then
monitconfdir="/etc/monit.d"
fi
#make pid dir
pidfile="/var/run/$jenkinsuser/jenkins_jnlp_pid"
if ! [ -d /var/run/$jenkinsuser/ ]; then
mkdir /var/run/$jenkinsuser/
chown $jenkinsuser:$jenkinsuser /var/run/$jenkinsuser/
fi
if [[ $skip_monit == true ]]; then
:
else
#check for monit
if [ $(which monit) ]; then
echo "monit installed"
else
if [ -n "$(command -v yum)" ]; then
echo "please install monit; eg: yum -y install monit"
exit 1
elif [ -n "$(command -v apt-get)" ]; then
echo "please install monit eg: apt-get install -y monit"
exit 1
else
echo "system not supported plese contact help desk"
exit 1
fi
fi
fi
makemonit () {
echo "Writing the following as monit config:"
cat << EOF | tee $monitconfdir/jenkins
check process jenkins with pidfile /var/run/$jenkinsuser/jenkins_jnlp_pid
start program = "/usr/bin/sudo -u $jenkinsuser /bin/bash -c 'cd $dir; export started_monit=true; $0 $@'"
stop program = "/bin/bash -c '/bin/kill \$(/bin/cat /var/run/$jenkinsuser/jenkins_jnlp_pid)'"
EOF
}
if [[ -f $monitconfdir/jenkins ]]; then
#test for diff
if [[ "$(diff $monitconfdir/jenkins <(echo "\
check process jenkins with pidfile /var/run/$jenkinsuser/jenkins_jnlp_pid
start program = \"usr/bin/sudo -u $jenkinsuser /bin/bash -c 'cd $dir; export started_monit=true; $0 $@'\"
stop program = \" /bin/bash -c '/bin/kill \$(/bin/cat /var/run/$jenkinsuser/jenkins_jnlp_pid)'\"\
") )" ]]; then
echo "Updating monit config..."
makemonit $@
fi
else
makemonit $@
fi
if [[ $started_monit == "true" ]]; then
wget --timestamping https://build.opnfv.org/ci/jnlpJars/slave.jar && true
chown $jenkinsuser $jenkinsuser slave.jar
if [[ -f /var/run/$jenkinsuser/jenkins_jnlp_pid ]];
then echo "pid file found"
if ! kill -0 "$(/bin/cat /var/run/$jenkinsuser/jenkins_jnlp_pid)"; then
echo "no java process running cleaning up pid file"
rm -f /var/run/$jenkinsuser/jenkins_jnlp_pid;
else
echo "java connection process found and running already running quitting."
exit 1
fi
fi
if [[ run_in_foreground == true ]]; then
$connectionstring
else
exec $connectionstring &
echo $! > /var/run/$jenkinsuser/jenkins_jnlp_pid
fi
else
echo "you are ready to start monit"
echo "eg: service monit start"
echo "example debug mode if you are having problems: /usr/bin/monit -Ivv -c /etc/monit.conf "
exit 0
fi
}
usage() {
cat << EOF
jenkins-jnlp-connect.sh configures monit to keep slave connection up
Checks for new versions of slave.jar
run as root to create pid directory and create monit config.
can be run as root additional times if you change variables and need to update monit config.
after running as root you should see "you are ready to start monit"
usage: $0 [OPTIONS]
-h show this message
-j set jenkins home
-u set jenkins user
-n set slave name
-s set secret key
-t test the connection string by connecting without monit
-f test firewall
Example: $0 -j /home/jenkins/ -u jenkins -n lab1 -s 727fdefoofoofoofoofoofoofof800
EOF
exit 1
}
if [[ -z "$@" ]]; then usage
fi
while getopts "j:u:n:s:htf" OPTION
do
case $OPTION in
j ) jenkinshome="$OPTARG" ;;
u ) jenkinsuser="$OPTARG" ;;
n ) slave_name="$OPTARG" ;;
s ) slave_secret="$OPTARG";;
h ) usage; exit;;
t ) started_monit=true
skip_monit=true
run_in_foreground=true ;;
f ) test_firewall ;;
\? ) echo "Unknown option: -$OPTARG" >&2; exit 1;;
esac
done
connectionstring="java -jar slave.jar -jnlpUrl https://build.opnfv.org/ci/computer/"$slave_name"/slave-agent.jnlp -secret "$slave_secret" -noCertificateCheck "
distro="$(tr -s ' \011' '\012' < /etc/issue | head -n 1)"
main "$@"
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