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