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 WEB_ROOT_PATH=web/MonitorWeb/monitorweb
  22 WEB_XML_PATH=static/xml
  23
  24 # Be verbose
  25 set -x
  26
  27 # Default locations
  28 PGDATA=/var/lib/pgsql/data
  29 postgresql_conf=$PGDATA/postgresql.conf
  30 pghba_conf=$PGDATA/pg_hba.conf
  31
  32 # Export so that we do not have to specify -p to psql invocations
  33 export PGPORT=$PLC_DB_PORT
  34
  35
  36 MONITOR_DB_USER="monitoruser"
  37 MONITOR_DB_NAME="monitor"
  38
  39 WROTE_PG_CONFIG=
  40
  41 if [ -z "$PLC_MONITOR_IP" ] ; then
  42         PLC_MONITOR_IP=$( gethostbyname $PLC_MONITOR_HOST )
  43 fi
  44
  45 function update_config ()
  46 {
  47         pattern=$1
  48         with=$2
  49         file=$3
  50         sed -i -e "s/$pattern/$with/g" $file
  51 }
  52 function apply_template ()
  53 {
  54         TEMPLATE=$1
  55         DESTFILE=$2
  56
  57         tmp_file=$(mktemp)
  58         cp $TEMPLATE $tmp_file
  59
  60         update_config PLC_NAME "$PLC_NAME" $tmp_file
  61         update_config PLC_WWW_HOSTNAME $PLC_WWW_HOST $tmp_file
  62         update_config MONITOR_HOSTNAME $PLC_MONITOR_HOST $tmp_file
  63
  64         cp $tmp_file $DESTFILE
  65         rm -f $tmp_file
  66 }
  67
  68 function check_gadget_config ()
  69 {
  70         for input_file in $MONITORPATH/$WEB_ROOT_PATH/$WEB_XML_PATH/*.in ; do
  71                 output_file=$MONITORPATH/$WEB_ROOT_PATH/$WEB_XML_PATH/`basename $input_file | sed -e 's/.in\$//'`
  72                 if [ $input_file -nt $output_file ] ; then
  73                         apply_template $input_file $output_file
  74                 fi
  75         done
  76 }
  77
  78 function check_monitor_schema_and_data_init()
  79 {
  80         # from monitor.functions
  81         check_monitor_schema_and_data
  82
  83         $MONITORPATH/config.d/init-bootman-sequence.py
  84 }
  85
  86 function check_monitor_conf ()
  87 {
  88         MONITOR_CONFIG=/etc/monitor.conf
  89
  90         # Using plcsh add default, monitor user
  91         plcsh <<EOF &>/dev/null
  92 AddPerson({'first_name' : 'Monitor', 'last_name' : 'Server', 'password' : '${PLC_MONITOR_DBPASSWORD}', 'email' : '${PLC_MONITOR_EMAIL}'})
  93 AddRoleToPerson('admin', '${PLC_MONITOR_EMAIL}')
  94 AddPersonToSite('${PLC_MONITOR_EMAIL}', '${PLC_SLICE_PREFIX}')
  95 UpdatePerson('${PLC_MONITOR_EMAIL}', { 'enabled' : True, 'password' : '${PLC_MONITOR_DBPASSWORD}' })
  96 EOF
  97
  98         if [ ! -f ${MONITOR_CONFIG} ] ; then
  99                 cat <<EOF > ${MONITOR_CONFIG}
 100 [monitorconfig]
 101 # RT Web user account
 102 RT_WEB_SERVER=http://${PLC_RT_HOST}/
 103 RT_WEB_TOOLS_PATH=/usr/bin/
 104 RT_WEB_USER=${PLC_RT_WEB_USER}
 105 RT_WEB_PASSWORD=${PLC_RT_WEB_PASSWORD}
 106 RT_WEB_DEBUG=0
 107 RT_QUEUE=${PLC_MONITOR_RT_QUEUE}
 108
 109 # PLC admin account
 110 API_SERVER=https://${PLC_API_HOST}:${PLC_API_PORT}/PLCAPI/
 111 API_AUTH_USER=${PLC_MONITOR_EMAIL}
 112 API_AUTH_PASSWORD=${PLC_MONITOR_DBPASSWORD}
 113
 114 # SERVER PATHS
 115 MONITOR_SCRIPT_ROOT=${MONITORPATH}
 116 MONITOR_DATA_ROOT=/var/lib/monitor
 117 MONITOR_ARCHIVE_ROOT=/var/lib/monitor/archive-pdb
 118 MONITOR_BOOTMANAGER_LOG=/var/www/html/monitorlog
 119
 120 MONITOR_HOSTNAME=${PLC_MONITOR_HOST}
 121 MONITOR_IP=${PLC_MONITOR_IP}
 122
 123 PLC_WWW_HOSTNAME=${PLC_WWW_HOST}
 124 PLC_NAME=${PLC_NAME}
 125
 126 # used for debug mode
 127 email=${PLC_MONITOR_CC_EMAIL}
 128 # all messages will appear to be from this address
 129 from_email=${PLC_MONITOR_EMAIL}
 130 # a separate address for support messages
 131 support_email=${PLC_MAIL_SUPPORT_ADDRESS}
 132 # mailing list copied on all out-going messages
 133 cc_email=${PLC_MONITOR_CC_EMAIL}
 134
 135 # these are reserved values
 136 RT_DB_HOST=${PLC_RT_HOST}
 137 RT_DB_USER=
 138 RT_DB_PASSWORD=
 139 RT_DB_NAME=
 140
 141 [monitordatabase]
 142 monitor_dburi=postgres://${MONITOR_DB_USER}:${PLC_MONITOR_DBPASSWORD}@localhost:5432/${MONITOR_DB_NAME}
 143 zabbix_dburi=postgres://${ZABBIX_DB_USER}:${PLC_MONITOR_DBPASSWORD}@localhost:5432/${ZABBIX_DB_NAME}
 144
 145 cachetime=60
 146
 147 # Evaluated as true or false
 148 [commandline]
 149 cachecalls=True
 150 embedded=False
 151 zabbix_enabled=False
 152
 153 echo=False
 154 debug=False
 155 mail=True
 156 bcc=False
 157 run=False
 158 checkopt=False
 159 squeeze=True
 160 policysavedb=True
 161 EOF
 162
 163         fi
 164 }
 165
 166 function create_httpd_conf ()
 167 {
 168         MONITOR_HTTP_CONF=/etc/httpd/conf.d/monitorweb.conf
 169
 170         if [ ! -f ${MONITOR_HTTP_CONF} ] ; then
 171                 # note: we need to either start this script before httpd, or always
 172                 # restart httpd, since there's no way to know beyond file's existence
 173                 # whether the values have changed or not.
 174                 WROTE_HTTP_CONFIG="true"
 175         fi
 176
 177         # TODO: support HTTPS as well as port 80.  currently not specifying port
 178         #               80 breaks https for other content on the myplc.
 179         # TODO: make proxy port configurable.
 180
 181         cat <<EOF > ${MONITOR_HTTP_CONF}
 182
 183 # NOTE: I've tried other means of redirection, including mod_rewrite, but did
 184 #       not have any success.  The means below is not idea, b/c it does not keep
 185 #       non-ssl session as non-ssl.  But it works.
 186
 187 # NOTE: redirect path without trailing '/' to path with.  Favor SSL.
 188 Redirect /monitor https://${PLC_MONITOR_HOST}:${PLC_WWW_SSL_PORT}/monitor/
 189 #RedirectMatch ^/$ https://${PLC_MONITOR_HOST}:${PLC_WWW_SSL_PORT}/monitor
 190
 191 # NOTE: this directive strips '/monitor/' from the requested path and pastes
 192 #       the remaining part to the end of the ProxyPass url below.  All TG urls
 193 #       should be relative to their current position, or the absolute path
 194 #       that includes /monitor/ at the beginning.
 195 # TODO: make location configurable.
 196 <Location '/monitor/'>
 197     #LogLevel debug
 198     #Errorlog /var/log/httpd/monitorwebapp-error_log
 199     #Customlog /var/log/httpd/monitorwebapp-access_log common
 200
 201     ProxyPass http://127.0.0.1:8082/
 202     ProxyPassReverse http://127.0.0.1:8082/
 203 </Location>
 204
 205 EOF
 206 }
 207
 208 function start_tg_server ()
 209 {
 210         stop_tg_server
 211         pushd ${MONITORPATH}/web/MonitorWeb/
 212         mkdir -p /var/log/monitor/monitorweb/
 213         cp /var/log/monitorweb.log /var/lib/monitor/monitorweb/`date +%Y-%m-%d-%H-%M`-monitorweb.log
 214         ./start-monitorweb.py ${MONITORPATH}/web/MonitorWeb/prod.cfg &> /var/log/monitorweb.log &
 215         popd
 216 }
 217
 218 function stop_tg_server ()
 219 {
 220         pid=$( cat /var/run/monitorweb.pid )
 221         if [ -n "$pid" ] ; then
 222                 kill $pid
 223         fi
 224 }
 225
 226 if [ "$PLC_MONITOR_ENABLED" != "1" ] ; then
 227     exit 0
 228 fi
 229
 230 case "$1" in
 231         start)
 232                 MESSAGE=$"Bootstrap Monitoring (please wait...)"
 233                 dialog "$MESSAGE"
 234
 235                 # DATABASE acces, creation, and data loading
 236                 check_pg_hba $MONITOR_DB_NAME $MONITOR_DB_USER
 237                 check_user_and_db $MONITOR_DB_NAME $MONITOR_DB_USER
 238                 # WRITE default /etc/monitor.conf
 239                 check_monitor_conf
 240
 241                 check_gadget_config
 242
 243                 if [ -n "$WROTE_PG_CONFIG" ] ; then
 244                         # NOTE: restart db to enable access by users granted above.
 245                         service plc restart postgresql
 246                         service plc restart httpd
 247                         MESSAGE=$"Bootstrap Monitoring 2 (please wait...)"
 248                         dialog "$MESSAGE"
 249                 fi
 250
 251                 check_monitor_schema_and_data_init
 252
 253                 # create /etc/httpd/conf.d/monitorweb.conf
 254                 create_httpd_conf
 255                 if [ -n "$WROTE_HTTP_CONFIG" ] ; then
 256                         # NOTE: restart web server to enable access web cfg
 257                         service plc restart httpd
 258                         MESSAGE=$"Bootstrap Monitoring 3 (please wait...)"
 259                         dialog "$MESSAGE"
 260                 fi
 261                 start_tg_server
 262
 263                 result "$MESSAGE"
 264         ;;
 265
 266         restartweb)
 267                 MESSAGE=$"Restarting monitor web app..."
 268                 dialog "$MESSAGE"
 269
 270                 stop_tg_server
 271                 start_tg_server
 272
 273                 result "$MESSAGE"
 274         ;;
 275
 276         delete)
 277                 MESSAGE=$"Deleting databases..."
 278                 dialog "$MESSAGE"
 279
 280                 dropdb -U postgres $MONITOR_DB_NAME
 281                 dropuser -U postgres $MONITOR_DB_USER
 282
 283                 result "$MESSAGE"
 284         ;;
 285
 286         stop)
 287                 MESSAGE=$"Stopping Monitor"
 288                 dialog "$MESSAGE"
 289
 290                 stop_tg_server
 291                 # todo: disable cron entry?
 292
 293                 result "$MESSAGE"
 294         ;;
 295 esac
 296
 297 exit $ERRORS