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