monitor-server.init

   1 #!/bin/bash
   2 #
   3 # priority: 850
   4 #
   5 # Manage settings for the Zabbix installtion and
   6 #       other monitor-related things
   7 #
   8 # Stephen Soltesz <soltesz@cs.princeton.edu>
   9 # Copyright (C) 2008 The Trustees of Princeton University
  10 #
  11 # $Id$
  12 #
  13
  14 # Source function library and configuration
  15 . /etc/plc.d/functions
  16 . /etc/planetlab/plc_config
  17 local_config=/etc/planetlab/configs/site.xml
  18
  19 MONITORPATH=/usr/share/monitor
  20
  21 # Be verbose
  22 set -x
  23
  24 # Default locations
  25 PGDATA=/var/lib/pgsql/data
  26 postgresql_conf=$PGDATA/postgresql.conf
  27 pghba_conf=$PGDATA/pg_hba.conf
  28
  29 # Export so that we do not have to specify -p to psql invocations
  30 export PGPORT=$PLC_DB_PORT
  31
  32
  33 MONITOR_DB_USER="monitoruser"
  34 MONITOR_DB_NAME="monitor"
  35
  36 WROTE_PG_CONFIG=
  37
  38 if [ -z "$PLC_MONITOR_IP" ] ; then
  39         PLC_MONITOR_IP=$( gethostbyname $PLC_MONITOR_HOST )
  40 fi
  41
  42 function check_monitor_schema_and_data()
  43 {
  44         # NOTE: call create_all() to setup the database from the info model.
  45         python -c "from monitor.database.info.model import *; from elixir import create_all; create_all()"
  46 }
  47
  48 function check_monitor_conf ()
  49 {
  50         MONITOR_CONFIG=/etc/monitor.conf
  51
  52         # Using plcsh add default, monitor user
  53         plcsh <<EOF &>/dev/null
  54 AddPerson({'first_name' : 'Monitor', 'last_name' : 'Server', 'password' : '${PLC_MONITOR_DBPASSWORD}', 'email' : '${PLC_MONITOR_EMAIL}'})
  55 AddRoleToPerson('admin', '${PLC_MONITOR_EMAIL}')
  56 AddPersonToSite('${PLC_MONITOR_EMAIL}', '${PLC_SLICE_PREFIX}')
  57 UpdatePerson('${PLC_MONITOR_EMAIL}', { 'enabled' : True, 'password' : '${PLC_MONITOR_DBPASSWORD}' })
  58 EOF
  59
  60         if [ ! -f ${MONITOR_CONFIG} ] ; then
  61                 cat <<EOF > ${MONITOR_CONFIG}
  62 [monitorconfig]
  63 RT_DB_HOST=rt.planet-lab.org
  64 RT_DB_USER=
  65 RT_DB_PASSWORD=
  66 RT_DB_NAME=
  67
  68 # RT Web user account
  69 RT_WEB_SERVER=https://rt.planet-lab.org/
  70 RT_WEB_TOOLS_PATH=
  71 RT_WEB_USER=
  72 RT_WEB_PASSWORD=
  73 RT_WEB_DEBUG=0
  74 RT_QUEUE=
  75
  76 # PLC admin account
  77 API_SERVER=https://${PLC_BOOT_HOST}/PLCAPI/
  78 API_AUTH_USER=${PLC_MONITOR_EMAIL}
  79 API_AUTH_PASSWORD=${PLC_MONITOR_DBPASSWORD}
  80
  81 # SERVER PATHS
  82 MONITOR_SCRIPT_ROOT=${MONITORPATH}
  83 MONITOR_DATA_ROOT=/var/lib/monitor
  84 MONITOR_ARCHIVE_ROOT=/var/lib/monitor/archive-pdb
  85 MONITOR_BOOTMANAGER_LOG=/var/www/html/monitorlog
  86
  87 MONITOR_HOSTNAME=${PLC_MONITOR_HOST}
  88 MONITOR_IP=${PLC_MONITOR_IP}
  89
  90 PLC_WWW_HOSTNAME=${PLC_WWW_HOST}
  91 PLC_NAME=${PLC_NAME}
  92
  93 # used for debug mode
  94 email=
  95
  96 # all messages will appear to be from this address
  97 from_email=${PLC_MONITOR_EMAIL}
  98
  99 # a separate address for support messages
 100 support_email=${PLC_MAIL_SUPPORT_ADDRESS}
 101
 102 # mailing list copied on all out-going messages
 103 cc_email=
 104
 105 [monitordatabase]
 106 monitor_dburi=postgres://${MONITOR_DB_USER}:${PLC_MONITOR_DBPASSWORD}@localhost:5432/${MONITOR_DB_NAME}
 107 zabbix_dburi=postgres://${ZABBIX_DB_USER}:${PLC_MONITOR_DBPASSWORD}@localhost:5432/${ZABBIX_DB_NAME}
 108
 109 cachetime=60
 110
 111 # Evaluated as true or false
 112 [commandline]
 113 cachecalls=True
 114 embedded=False
 115
 116 echo=False
 117 debug=False
 118 mail=True
 119 bcc=False
 120 run=False
 121 checkopt=False
 122 squeeze=True
 123 policysavedb=True
 124 EOF
 125
 126         fi
 127 }
 128
 129 function create_httpd_conf ()
 130 {
 131         MONITOR_HTTP_CONF=/etc/httpd/conf.d/monitorweb.conf
 132
 133         if [ ! -f ${MONITOR_HTTP_CONF} ] ; then
 134                 # note: we need to either start this script before httpd, or always
 135                 # restart httpd, since there's no way to know beyond file's existence
 136                 # whether the values have changed or not.
 137                 WROTE_HTTP_CONFIG="true"
 138         fi
 139
 140         # TODO: support HTTPS as well as port 80.  currently not specifying port
 141         #               80 breaks https for other content on the myplc.
 142         # TODO: make proxy port configurable.
 143
 144         cat <<EOF > ${MONITOR_HTTP_CONF}
 145
 146 # NOTE: I've tried other means of redirection, including mod_rewrite, but did
 147 #       not have any success.  The means below is not idea, b/c it does not keep
 148 #       non-ssl session as non-ssl.  But it works.
 149
 150 # NOTE: redirect path without trailing '/' to path with.  Favor SSL.
 151 Redirect /monitor https://${PLC_MONITOR_HOST}:${PLC_WWW_SSL_PORT}/monitor/
 152
 153 # NOTE: this directive strips '/monitor/' from the requested path and pastes
 154 #       the remaining part to the end of the ProxyPass url below.  All TG urls
 155 #       should be relative to their current position, or the absolute path
 156 #       that includes /monitor/ at the beginning.
 157 # TODO: make location configurable.
 158 <Location '/monitor/'>
 159     #LogLevel debug
 160     #Errorlog /var/log/httpd/monitorwebapp-error_log
 161     #Customlog /var/log/httpd/monitorwebapp-access_log common
 162
 163     ProxyPass http://127.0.0.1:8082/
 164     ProxyPassReverse http://127.0.0.1:8082/
 165 </Location>
 166
 167 EOF
 168 }
 169
 170 function start_tg_server ()
 171 {
 172         stop_tg_server
 173         pushd ${MONITORPATH}/web/MonitorWeb/
 174         ./start-monitorweb.py ${MONITORPATH}/web/MonitorWeb/prod.cfg &> /var/log/monitorweb.log &
 175         popd
 176 }
 177
 178 function stop_tg_server ()
 179 {
 180         pid=$( cat /var/run/monitorweb.pid )
 181         if [ -n "$pid" ] ; then
 182                 kill $pid
 183         fi
 184 }
 185
 186 if [ "$PLC_MONITOR_ENABLED" != "1" ] ; then
 187     exit 0
 188 fi
 189
 190 case "$1" in
 191         start)
 192                 MESSAGE=$"Bootstrap Monitoring (please wait...)"
 193                 dialog "$MESSAGE"
 194
 195                 # DATABASE acces, creation, and data loading
 196                 check_pg_hba $MONITOR_DB_NAME $MONITOR_DB_USER
 197                 check_user_and_db $MONITOR_DB_NAME $MONITOR_DB_USER
 198                 # WRITE default /etc/monitor.conf
 199                 check_monitor_conf
 200
 201                 if [ -n "$WROTE_PG_CONFIG" ] ; then
 202                         # NOTE: restart db to enable access by users granted above.
 203                         service plc restart postgresql
 204                         service plc restart httpd
 205                         MESSAGE=$"Bootstrap Monitoring 2 (please wait...)"
 206                         dialog "$MESSAGE"
 207                 fi
 208
 209                 check_monitor_schema_and_data
 210
 211                 # create /etc/httpd/conf.d/monitorweb.conf
 212                 create_httpd_conf
 213                 if [ -n "$WROTE_HTTP_CONFIG" ] ; then
 214                         # NOTE: restart web server to enable access web cfg
 215                         service plc restart httpd
 216                         MESSAGE=$"Bootstrap Monitoring 3 (please wait...)"
 217                         dialog "$MESSAGE"
 218                 fi
 219                 start_tg_server
 220
 221                 result "$MESSAGE"
 222         ;;
 223
 224         restartweb)
 225                 MESSAGE=$"Restarting monitor web app..."
 226                 dialog "$MESSAGE"
 227
 228                 stop_tg_server
 229                 start_tg_server
 230
 231                 result "$MESSAGE"
 232         ;;
 233
 234         delete)
 235                 MESSAGE=$"Deleting databases..."
 236                 dialog "$MESSAGE"
 237
 238                 dropdb -U postgres $MONITOR_DB_NAME
 239                 dropuser -U postgres $MONITOR_DB_USER
 240
 241                 result "$MESSAGE"
 242         ;;
 243
 244         stop)
 245                 MESSAGE=$"Stopping Monitor"
 246                 dialog "$MESSAGE"
 247
 248                 stop_tg_server
 249                 # todo: disable cron entry?
 250
 251                 result "$MESSAGE"
 252         ;;
 253 esac
 254
 255 exit $ERRORS