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