debian/scripts/koha-zebra

   1 #!/bin/bash
   2
   3 # koha-zebra - Manage Zebra daemons for Koha instances
   4 #              Copyright 2016 Theke Solutions
   5 #              Copyright 2010 Catalyst IT, Ltd
   6 #
   7 # This program is free software: you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation, either version 3 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19
  20 set -e
  21
  22 . /lib/lsb/init-functions
  23
  24 # Read configuration variable file if it is present
  25 [ -r /etc/default/koha-common ] && . /etc/default/koha-common
  26
  27 # include helper functions
  28 if [ -f "/usr/share/koha/bin/koha-functions.sh" ]; then
  29     . "/usr/share/koha/bin/koha-functions.sh"
  30 else
  31     echo "Error: /usr/share/koha/bin/koha-functions.sh not present." 1>&2
  32     exit 1
  33 fi
  34
  35 usage()
  36 {
  37     local scriptname=$(basename $0)
  38
  39     cat <<EOF
  40 $scriptname
  41
  42 This script lets you manage the Zebra daemon for your Koha instances.
  43
  44 Usage:
  45 $scriptname [--start|--stop|--restart] instancename1 [instancename2...]
  46 $scriptname -h|--help
  47
  48     --start               Start the Zebra daemon for the specified instance(s)
  49     --stop                Stop the Zebra daemon for the specified instance(s)
  50     --restart             Restart the Zebra daemon for the specified instance(s)
  51     --status              Show the status of the Zebra daemon for the specified instance(s)
  52     --verbose|-v          Display progress and actions messages
  53     --help|-h             Display this help message
  54
  55 EOF
  56 }
  57
  58 start_zebra()
  59 {
  60     local name=$1
  61
  62     # get zebra log levels from koha-conf.xml
  63     local loglevels=$(get_loglevels ${name})
  64
  65     if ! is_zebra_running $name; then
  66
  67         _check_and_fix_perms ${name}
  68
  69         DAEMONOPTS="--name=${name}-koha-zebra \
  70                     --pidfiles=/var/run/koha/${name}/ \
  71                     --errlog=/var/log/koha/${name}/zebra-error.log \
  72                     --output=/var/log/koha/${name}/zebra-output.log \
  73                     --verbose=1 \
  74                     --respawn \
  75                     --delay=30 \
  76                     --user=${name}-koha.${name}-koha"
  77
  78         ZEBRA_PARAMS="-v $loglevels \
  79                       -f /etc/koha/sites/${name}/koha-conf.xml"
  80
  81         [ "$verbose" != "no" ] && \
  82             log_daemon_msg "Starting Koha Zebra daemon for ${name}"
  83
  84         if daemon $DAEMONOPTS -- $ZEBRA_DAEMON $ZEBRA_PARAMS; then
  85             [ "$verbose" != "no" ] && \
  86                 log_end_msg 0
  87         else
  88             [ "$verbose" != "no" ] && \
  89                 log_end_msg 1
  90         fi
  91     else
  92         if [ "$verbose" != "no" ]; then
  93             log_daemon_msg "Error: Zebra already running for ${name}"
  94             log_end_msg 1
  95         fi
  96     fi
  97 }
  98
  99 stop_zebra()
 100 {
 101     local name=$1
 102
 103     if is_zebra_running $name; then
 104
 105         DAEMONOPTS="--name=${name}-koha-zebra \
 106                     --pidfiles=/var/run/koha/${name}/ \
 107                     --errlog=/var/log/koha/${name}/zebra-error.log \
 108                     --output=/var/log/koha/${name}/zebra-output.log \
 109                     --verbose=1 \
 110                     --respawn \
 111                     --delay=30 \
 112                     --user=${name}-koha.${name}-koha"
 113
 114         [ "$verbose" != "no" ] && \
 115             log_daemon_msg "Stopping Koha Zebra daemon for ${name}"
 116
 117         if daemon $DAEMONOPTS --stop -- $ZEBRA_DAEMON $ZEBRA_PARAMS; then
 118             [ "$verbose" != "no" ] && \
 119                 log_end_msg 0
 120         else
 121             [ "$verbose" != "no" ] && \
 122                 log_end_msg 1
 123         fi
 124     else
 125         if [ "$verbose" != "no" ]; then
 126             log_daemon_msg "Error: Zebra not running for ${name}"
 127             log_end_msg 1
 128         fi
 129     fi
 130 }
 131
 132 restart_zebra()
 133 {
 134     local name=$1
 135
 136     if is_zebra_running ${name}; then
 137         local noLF="-n"
 138         [ "$verbose" != "no" ] && noLF=""
 139         echo $noLF `stop_zebra ${name}`
 140         echo $noLF `start_zebra ${name}`
 141     else
 142         if [ "$verbose" != "no" ]; then
 143             log_daemon_msg "Error: Zebra not running for ${name}"
 144             log_end_msg 1
 145         fi
 146     fi
 147 }
 148
 149 zebra_status()
 150 {
 151     local name=$1
 152
 153     if is_zebra_running ${name}; then
 154         log_daemon_msg "Zebra running for ${name}"
 155         log_end_msg 0
 156     else
 157         log_daemon_msg "Zebra not running for ${name}"
 158         log_end_msg 3
 159     fi
 160 }
 161
 162 _check_and_fix_perms()
 163 {
 164     local name=$1
 165
 166     local files="/var/log/koha/${name}/zebra-output.log \
 167                  /var/log/koha/${name}/zebra-error.log"
 168
 169     for file in ${files}
 170     do
 171         if [ ! -e "${file}" ]; then
 172             touch ${file}
 173         fi
 174         chown "${name}-koha":"${name}-koha" ${file}
 175     done
 176 }
 177
 178 set_action()
 179 {
 180     if [ "$op" = "" ]; then
 181         op=$1
 182     else
 183         die "Error: only one action can be specified."
 184     fi
 185 }
 186
 187 op=""
 188 verbose="no"
 189
 190 # Backwards compatible with old koha-*-zebra scripts
 191 # TODO: Remove once there's consensus to remove the legacy scripts
 192 used_script_name=$(basename $0)
 193
 194 if [ "$used_script_name" != "koha-zebra" ]; then
 195     warn "Deprecated script used (${used_script_name})"
 196
 197     case "$used_script_name" in
 198         koha-start-zebra)
 199             set_action "start" ;;
 200         koha-stop-zebra)
 201             set_action "stop" ;;
 202         koha-restart-zebra)
 203             set_action "restart" ;;
 204         *)
 205             break ;;
 206     esac
 207 fi
 208 # / Backwards compatible handling code
 209
 210 # Read command line parameters
 211 while [ $# -gt 0 ]; do
 212
 213     case "$1" in
 214         -h|--help)
 215             usage ; exit 0 ;;
 216         -v|--verbose)
 217             verbose="yes"
 218             shift ;;
 219         --start)
 220             set_action "start"
 221             shift ;;
 222         --stop)
 223             set_action "stop"
 224             shift ;;
 225         --restart)
 226             set_action "restart"
 227             shift ;;
 228         --status)
 229             set_action "status"
 230             shift ;;
 231         -*)
 232             die "Error: invalid option switch ($1)" ;;
 233         *)
 234             # We expect the remaining stuff are the instance names
 235             break ;;
 236     esac
 237
 238 done
 239
 240 ZEBRA_DAEMON=$(which zebrasrv)
 241
 242 if [ $# -gt 0 ]; then
 243     # We have at least one instance name
 244     for name in "$@"; do
 245
 246         if is_instance $name; then
 247
 248             case $op in
 249                 "start")
 250                     start_zebra $name
 251                     ;;
 252                 "stop")
 253                     stop_zebra $name
 254                     ;;
 255                 "restart")
 256                     restart_zebra $name
 257                     ;;
 258                 "status")
 259                     zebra_status $name
 260             esac
 261
 262         else
 263             if [ "$verbose" != "no" ]; then
 264                 log_daemon_msg "Error: Invalid instance name $name"
 265                 log_end_msg 1
 266             fi
 267         fi
 268
 269     done
 270 else
 271     if [ "$verbose" != "no" ]; then
 272         warn "Error: you must provide at least one instance name"
 273     fi
 274 fi
 275
 276 exit 0