utils/jenkins-jnlp-connect.sh

   1 #!/bin/bash
   2 # SPDX-license-identifier: Apache-2.0
   3 ##############################################################################
   4 # Copyright (c) 2016 Linux Foundation and others.
   5 # All rights reserved. This program and the accompanying materials
   6 # are made available under the terms of the Apache License, Version 2.0
   7 # which accompanies this distribution, and is available at
   8 # http://www.apache.org/licenses/LICENSE-2.0
   9 ##############################################################################
  10
  11 #Monit setup script for opnfv jnlp slave connections
  12
  13 test_firewall() {
  14     echo "testing that the firewall is open for us at build.opnfv.org"
  15     test=$(echo "blah"| nc -w 4 build.opnfv.org 57387 > /dev/null 2>&1; echo $?)
  16     if [[ $test == 0 ]]; then
  17         echo "Firewall is open for us at build.opnfv.org"
  18         exit 0
  19     else
  20         cat << EOF
  21 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
  22 opnfv-helpdesk@rt.linuxfoundation.org
  23 Jenkins Home: $jenkinshome
  24 Jenkins User: $jenkinsuser
  25 Slave Name: $slave_name
  26 IP Address: $(curl -s http://icanhazip.com)
  27 EOF
  28         exit 1
  29     fi
  30 }
  31
  32 main () {
  33     #tests
  34     if [[ -z $jenkinsuser || -z $jenkinshome ]]; then
  35         echo "jenkinsuser or home not defined, please edit this file to define it"
  36         exit 1
  37     fi
  38
  39     if [[ $(pwd) != "$jenkinshome" ]]; then
  40         echo "This script needs to be run from the jenkins users home dir"
  41         exit 1
  42     fi
  43
  44     if [[ -z $slave_name || -z $slave_secret ]]; then
  45         echo "slave name or secret not defined, please edit this file to define it"
  46         exit 1
  47     fi
  48
  49     if [[ $(whoami) != "root" && $(whoami) != "$jenkinsuser"  ]]; then
  50         echo "This script must be run as user root or jenkins user"
  51         exit 1
  52     fi
  53
  54     if [[ $(whoami) != "root" ]]; then
  55       if sudo -l | grep "requiretty"  | grep -v "\!requiretty"; then
  56         echo "please comment out Defaults requiretty from /etc/sudoers"
  57         exit 1
  58       fi
  59     fi
  60
  61     #make pid dir
  62     pidfile="/var/run/$jenkinsuser/jenkins_jnlp_pid"
  63     if ! [ -d /var/run/$jenkinsuser/ ]; then
  64         sudo mkdir /var/run/$jenkinsuser/
  65         sudo chown $jenkinsuser:$jenkinsuser /var/run/$jenkinsuser/
  66     fi
  67
  68     if [[ $skip_monit != true ]]; then
  69         #check for monit
  70         if [ $(which monit) ]; then
  71             echo "monit installed"
  72         else
  73             if [ -n "$(command -v yum)" ]; then
  74                 echo "please install monit; eg: yum -y install monit"
  75                 exit 1
  76             elif [ -n "$(command -v apt-get)" ]; then
  77                 echo "please install monit; eg: apt-get install -y monit"
  78                 exit 1
  79             else
  80                 echo "system not supported plese contact help desk"
  81                 exit 1
  82             fi
  83         fi
  84
  85         if [ -d /etc/monit/conf.d ]; then
  86             monitconfdir="/etc/monit/conf.d/"
  87         elif [ -d /etc/monit.d ]; then
  88             monitconfdir="/etc/monit.d"
  89         else
  90             echo "Could not determine the location of the monit configuration file."
  91             echo "Make sure monit is installed."
  92             exit 1
  93         fi
  94
  95         chown=$(type -p chown)
  96         mkdir=$(type -p mkdir)
  97
  98         makemonit () {
  99             echo "Writing the following as monit config:"
 100         cat << EOF | tee $monitconfdir/jenkins
 101 check directory jenkins_piddir path /var/run/$jenkinsuser
 102 if does not exist then exec "$mkdir -p /var/run/$jenkinsuser"
 103 if failed uid $jenkinsuser then exec "$chown $jenkinsuser /var/run/$jenkinsuser"
 104 if failed gid $jenkinsuser then exec "$chown :$jenkinsuser /var/run/$jenkinsuser"
 105
 106 check process jenkins with pidfile /var/run/$jenkinsuser/jenkins_jnlp_pid every 2 cycles
 107 start program = "/usr/bin/sudo -u $jenkinsuser /bin/bash -c 'cd $jenkinshome; export started_monit=true; $0 $@' with timeout 60 seconds"
 108 stop program = "/bin/bash -c '/bin/kill \$(/bin/cat /var/run/$jenkinsuser/jenkins_jnlp_pid)'"
 109 depends on jenkins_piddir
 110 EOF
 111         }
 112
 113         if [[ -f $monitconfdir/jenkins ]]; then
 114             #test for diff
 115             if [[ "$(diff $monitconfdir/jenkins <(echo "\
 116 check directory jenkins_piddir path /var/run/$jenkinsuser
 117 if does not exist then exec \"$mkdir -p /var/run/$jenkinsuser\"
 118 if failed uid $jenkinsuser then exec \"$chown $jenkinsuser /var/run/$jenkinsuser\"
 119 if failed gid $jenkinsuser then exec \"$chown :$jenkinsuser /var/run/$jenkinsuser\"
 120
 121 check process jenkins with pidfile /var/run/$jenkinsuser/jenkins_jnlp_pid every 2 cycles
 122 start program = \"/usr/bin/sudo -u $jenkinsuser /bin/bash -c 'cd $jenkinshome; export started_monit=true; $0 $@' with timeout 60 seconds\"
 123 stop program = \"/bin/bash -c '/bin/kill \$(/bin/cat /var/run/$jenkinsuser/jenkins_jnlp_pid)'\"
 124 depends on jenkins_piddir\
 125 ") )" ]]; then
 126                 echo "Updating monit config..."
 127                 makemonit $@
 128             fi
 129         else
 130             makemonit $@
 131         fi
 132     fi
 133
 134     if [[ $started_monit == "true" ]]; then
 135         wget --timestamping https://build.opnfv.org/ci/jnlpJars/slave.jar && true
 136         chown $jenkinsuser:$jenkinsuser slave.jar
 137
 138         if [[ -f /var/run/$jenkinsuser/jenkins_jnlp_pid ]]; then
 139             echo "pid file found"
 140             if ! kill -0 "$(/bin/cat /var/run/$jenkinsuser/jenkins_jnlp_pid)"; then
 141                 echo "no java process running cleaning up pid file"
 142                 rm -f /var/run/$jenkinsuser/jenkins_jnlp_pid;
 143             else
 144                 echo "java connection process found and running already running quitting."
 145                 exit 1
 146             fi
 147         fi
 148
 149         if [[ $run_in_foreground == true ]]; then
 150             $connectionstring
 151         else
 152             exec $connectionstring &
 153             echo $! > /var/run/$jenkinsuser/jenkins_jnlp_pid
 154         fi
 155     else
 156         echo "you are ready to start monit"
 157         echo "eg: service monit start"
 158         echo "example debug mode if you are having problems:  /usr/bin/monit -Ivv -c /etc/monit.conf "
 159         exit 0
 160     fi
 161 }
 162
 163 usage() {
 164     cat << EOF
 165
 166 **this file must be copied to the jenkins home directory to work**
 167 jenkins-jnlp-connect.sh configures monit to keep slave connection up
 168 Checks for new versions of slave.jar
 169 run as root to create pid directory and create monit config.
 170 can be run as root additional times if you change variables and need to update monit config.
 171 after running as root you should see "you are ready to start monit"
 172
 173 usage: $0 [OPTIONS]
 174  -h  show this message
 175  -j  set jenkins home
 176  -u  set jenkins user
 177  -n  set slave name
 178  -s  set secret key
 179  -t  test the connection string by connecting without monit
 180  -f  test firewall
 181
 182 Example: $0 -j /home/jenkins -u jenkins -n lab1 -s 727fdefoofoofoofoofoofoofof800
 183 note: a trailing slash on -j /home/jenkins will break the script
 184 EOF
 185
 186     exit 1
 187 }
 188
 189 if [[ -z "$@" ]]; then
 190     usage
 191 fi
 192
 193 while getopts "j:u:n:s:htf" OPTION
 194 do
 195     case $OPTION in
 196         j ) jenkinshome="$OPTARG" ;;
 197         u ) jenkinsuser="$OPTARG" ;;
 198         n ) slave_name="$OPTARG" ;;
 199         s ) slave_secret="$OPTARG";;
 200         h ) usage ;;
 201         t ) started_monit=true
 202             skip_monit=true
 203             run_in_foreground=true ;;
 204         f ) test_firewall ;;
 205         \? ) echo "Unknown option: -$OPTARG" >&2; exit 1;;
 206     esac
 207 done
 208
 209 connectionstring="java -jar slave.jar -jnlpUrl https://build.opnfv.org/ci/computer/"$slave_name"/slave-agent.jnlp -secret "$slave_secret" -noCertificateCheck "
 210
 211 main "$@"