279 lines
9.4 KiB
Bash
Executable File
279 lines
9.4 KiB
Bash
Executable File
#!/bin/sh
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# Copyright 2011 Dvir Volk <dvirsk at gmail dot com>. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# 1. Redistributions of source code must retain the above copyright notice,
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# this list of conditions and the following disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
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# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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# EVENT SHALL Dvir Volk OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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# OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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################################################################################
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#
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# Service installer for redis server, runs interactively by default.
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#
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# To run this script non-interactively (for automation/provisioning purposes),
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# feed the variables into the script. Any missing variables will be prompted!
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# Tip: Environment variables also support command substitution (see REDIS_EXECUTABLE)
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#
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# Example:
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#
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# sudo REDIS_PORT=1234 \
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# REDIS_CONFIG_FILE=/etc/redis/1234.conf \
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# REDIS_LOG_FILE=/var/log/redis_1234.log \
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# REDIS_DATA_DIR=/var/lib/redis/1234 \
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# REDIS_EXECUTABLE=`command -v redis-server` ./utils/install_server.sh
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#
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# This generates a redis config file and an /etc/init.d script, and installs them.
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#
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# /!\ This script should be run as root
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#
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################################################################################
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die () {
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echo "ERROR: $1. Aborting!"
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exit 1
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}
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#Absolute path to this script
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SCRIPT=$(readlink -f $0)
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#Absolute path this script is in
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SCRIPTPATH=$(dirname $SCRIPT)
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#Initial defaults
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_REDIS_PORT=6379
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_MANUAL_EXECUTION=false
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echo "Welcome to the redis service installer"
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echo "This script will help you easily set up a running redis server"
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echo
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#check for root user
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if [ "$(id -u)" -ne 0 ] ; then
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echo "You must run this script as root. Sorry!"
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exit 1
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fi
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if ! echo $REDIS_PORT | egrep -q '^[0-9]+$' ; then
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_MANUAL_EXECUTION=true
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#Read the redis port
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read -p "Please select the redis port for this instance: [$_REDIS_PORT] " REDIS_PORT
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if ! echo $REDIS_PORT | egrep -q '^[0-9]+$' ; then
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echo "Selecting default: $_REDIS_PORT"
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REDIS_PORT=$_REDIS_PORT
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fi
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fi
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if [ -z "$REDIS_CONFIG_FILE" ] ; then
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_MANUAL_EXECUTION=true
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#read the redis config file
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_REDIS_CONFIG_FILE="/etc/redis/$REDIS_PORT.conf"
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read -p "Please select the redis config file name [$_REDIS_CONFIG_FILE] " REDIS_CONFIG_FILE
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if [ -z "$REDIS_CONFIG_FILE" ] ; then
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REDIS_CONFIG_FILE=$_REDIS_CONFIG_FILE
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echo "Selected default - $REDIS_CONFIG_FILE"
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fi
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fi
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if [ -z "$REDIS_LOG_FILE" ] ; then
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_MANUAL_EXECUTION=true
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#read the redis log file path
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_REDIS_LOG_FILE="/var/log/redis_$REDIS_PORT.log"
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read -p "Please select the redis log file name [$_REDIS_LOG_FILE] " REDIS_LOG_FILE
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if [ -z "$REDIS_LOG_FILE" ] ; then
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REDIS_LOG_FILE=$_REDIS_LOG_FILE
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echo "Selected default - $REDIS_LOG_FILE"
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fi
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fi
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if [ -z "$REDIS_DATA_DIR" ] ; then
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_MANUAL_EXECUTION=true
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#get the redis data directory
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_REDIS_DATA_DIR="/var/lib/redis/$REDIS_PORT"
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read -p "Please select the data directory for this instance [$_REDIS_DATA_DIR] " REDIS_DATA_DIR
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if [ -z "$REDIS_DATA_DIR" ] ; then
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REDIS_DATA_DIR=$_REDIS_DATA_DIR
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echo "Selected default - $REDIS_DATA_DIR"
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fi
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fi
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if [ ! -x "$REDIS_EXECUTABLE" ] ; then
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_MANUAL_EXECUTION=true
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#get the redis executable path
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_REDIS_EXECUTABLE=`command -v redis-server`
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read -p "Please select the redis executable path [$_REDIS_EXECUTABLE] " REDIS_EXECUTABLE
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if [ ! -x "$REDIS_EXECUTABLE" ] ; then
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REDIS_EXECUTABLE=$_REDIS_EXECUTABLE
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if [ ! -x "$REDIS_EXECUTABLE" ] ; then
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echo "Mmmmm... it seems like you don't have a redis executable. Did you run make install yet?"
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exit 1
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fi
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fi
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fi
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#check the default for redis cli
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CLI_EXEC=`command -v redis-cli`
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if [ -z "$CLI_EXEC" ] ; then
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CLI_EXEC=`dirname $REDIS_EXECUTABLE`"/redis-cli"
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fi
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echo "Selected config:"
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echo "Port : $REDIS_PORT"
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echo "Config file : $REDIS_CONFIG_FILE"
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echo "Log file : $REDIS_LOG_FILE"
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echo "Data dir : $REDIS_DATA_DIR"
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echo "Executable : $REDIS_EXECUTABLE"
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echo "Cli Executable : $CLI_EXEC"
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if $_MANUAL_EXECUTION == true ; then
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read -p "Is this ok? Then press ENTER to go on or Ctrl-C to abort." _UNUSED_
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fi
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mkdir -p `dirname "$REDIS_CONFIG_FILE"` || die "Could not create redis config directory"
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mkdir -p `dirname "$REDIS_LOG_FILE"` || die "Could not create redis log dir"
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mkdir -p "$REDIS_DATA_DIR" || die "Could not create redis data directory"
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#render the templates
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TMP_FILE="/tmp/${REDIS_PORT}.conf"
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DEFAULT_CONFIG="${SCRIPTPATH}/../redis.conf"
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INIT_TPL_FILE="${SCRIPTPATH}/redis_init_script.tpl"
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INIT_SCRIPT_DEST="/etc/init.d/redis_${REDIS_PORT}"
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PIDFILE="/var/run/redis_${REDIS_PORT}.pid"
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if [ ! -f "$DEFAULT_CONFIG" ]; then
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echo "Mmmmm... the default config is missing. Did you switch to the utils directory?"
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exit 1
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fi
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#Generate config file from the default config file as template
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#changing only the stuff we're controlling from this script
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echo "## Generated by install_server.sh ##" > $TMP_FILE
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read -r SED_EXPR <<-EOF
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s#^port [0-9]{4}\$#port ${REDIS_PORT}#; \
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s#^logfile .+\$#logfile ${REDIS_LOG_FILE}#; \
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s#^dir .+\$#dir ${REDIS_DATA_DIR}#; \
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s#^pidfile .+\$#pidfile ${PIDFILE}#; \
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s#^daemonize no\$#daemonize yes#;
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EOF
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sed -r "$SED_EXPR" $DEFAULT_CONFIG >> $TMP_FILE
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#cat $TPL_FILE | while read line; do eval "echo \"$line\"" >> $TMP_FILE; done
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cp $TMP_FILE $REDIS_CONFIG_FILE || die "Could not write redis config file $REDIS_CONFIG_FILE"
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#Generate sample script from template file
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rm -f $TMP_FILE
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#we hard code the configs here to avoid issues with templates containing env vars
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#kinda lame but works!
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REDIS_INIT_HEADER=\
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"#!/bin/sh\n
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#Configurations injected by install_server below....\n\n
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EXEC=$REDIS_EXECUTABLE\n
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CLIEXEC=$CLI_EXEC\n
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PIDFILE=\"$PIDFILE\"\n
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CONF=\"$REDIS_CONFIG_FILE\"\n\n
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REDISPORT=\"$REDIS_PORT\"\n\n
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###############\n\n"
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REDIS_CHKCONFIG_INFO=\
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"# REDHAT chkconfig header\n\n
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# chkconfig: - 58 74\n
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# description: redis_${REDIS_PORT} is the redis daemon.\n
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### BEGIN INIT INFO\n
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# Provides: redis_6379\n
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# Required-Start: \$network \$local_fs \$remote_fs\n
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# Required-Stop: \$network \$local_fs \$remote_fs\n
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# Default-Start: 2 3 4 5\n
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# Default-Stop: 0 1 6\n
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# Should-Start: \$syslog \$named\n
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# Should-Stop: \$syslog \$named\n
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# Short-Description: start and stop redis_${REDIS_PORT}\n
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# Description: Redis daemon\n
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### END INIT INFO\n\n"
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if command -v chkconfig >/dev/null; then
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#if we're a box with chkconfig on it we want to include info for chkconfig
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echo "$REDIS_INIT_HEADER" "$REDIS_CHKCONFIG_INFO" > $TMP_FILE && cat $INIT_TPL_FILE >> $TMP_FILE || die "Could not write init script to $TMP_FILE"
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else
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#combine the header and the template (which is actually a static footer)
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echo "$REDIS_INIT_HEADER" > $TMP_FILE && cat $INIT_TPL_FILE >> $TMP_FILE || die "Could not write init script to $TMP_FILE"
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fi
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###
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# Generate sample script from template file
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# - No need to check which system we are on. The init info are comments and
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# do not interfere with update_rc.d systems. Additionally:
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# Ubuntu/debian by default does not come with chkconfig, but does issue a
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# warning if init info is not available.
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cat > ${TMP_FILE} <<EOT
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#!/bin/sh
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#Configurations injected by install_server below....
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EXEC=$REDIS_EXECUTABLE
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CLIEXEC=$CLI_EXEC
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PIDFILE=$PIDFILE
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CONF="$REDIS_CONFIG_FILE"
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REDISPORT="$REDIS_PORT"
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###############
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# SysV Init Information
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# chkconfig: - 58 74
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# description: redis_${REDIS_PORT} is the redis daemon.
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### BEGIN INIT INFO
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# Provides: redis_${REDIS_PORT}
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# Required-Start: \$network \$local_fs \$remote_fs
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# Required-Stop: \$network \$local_fs \$remote_fs
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# Default-Start: 2 3 4 5
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# Default-Stop: 0 1 6
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# Should-Start: \$syslog \$named
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# Should-Stop: \$syslog \$named
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# Short-Description: start and stop redis_${REDIS_PORT}
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# Description: Redis daemon
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### END INIT INFO
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EOT
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cat ${INIT_TPL_FILE} >> ${TMP_FILE}
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#copy to /etc/init.d
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cp $TMP_FILE $INIT_SCRIPT_DEST && \
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chmod +x $INIT_SCRIPT_DEST || die "Could not copy redis init script to $INIT_SCRIPT_DEST"
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echo "Copied $TMP_FILE => $INIT_SCRIPT_DEST"
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#Install the service
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echo "Installing service..."
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if command -v chkconfig >/dev/null 2>&1; then
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# we're chkconfig, so lets add to chkconfig and put in runlevel 345
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chkconfig --add redis_${REDIS_PORT} && echo "Successfully added to chkconfig!"
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chkconfig --level 345 redis_${REDIS_PORT} on && echo "Successfully added to runlevels 345!"
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elif command -v update-rc.d >/dev/null 2>&1; then
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#if we're not a chkconfig box assume we're able to use update-rc.d
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update-rc.d redis_${REDIS_PORT} defaults && echo "Success!"
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else
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echo "No supported init tool found."
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fi
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/etc/init.d/redis_$REDIS_PORT start || die "Failed starting service..."
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#tada
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echo "Installation successful!"
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exit 0
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