FreeBSD/jails/config/elk/rc.d/logstash
2021-02-13 11:38:38 -08:00

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#!/bin/sh
# Configuration settings for logstash in /etc/rc.conf:
#
# PROVIDE: logstash
# REQUIRE: DAEMON
# BEFORE: LOGIN
# KEYWORD: shutdown
#
# logstash_enable (bool):
# Default value: "NO"
# Flag that determines whether Logstash is enabled.
#
# logstash_home (string):
# Default value: "/usr/local/logstash"
# Logstash installation directory.
#
# logstash_config (string):
# Default value: /usr/local/etc/${name}
# Logstash configuration path.
#
# logstash_log (bool):
# Set to "NO" by default.
# Set it to "YES" to enable logstash logging to file
# Default output to /var/log/logstash.log
#
# logstash_log_file (string):
# Default value: "${logdir}/${name}.log"
# Log file path.
#
# logstash_java_home (string):
# Default value: "/usr/local/openjdk8"
# Root directory of the desired Java SDK.
# The JAVA_HOME environment variable is set with the contents of this
# variable.
#
# logstash_java_opts (string):
# Default value: ""
# Options to pass to the Java Virtual Machine.
# The JAVA_OPTS environment variable is set with the contents of this
# variable.
#
# logstash_opts (string):
# Default value: ""
# Additional command line flags for logstash, eg. "-r"
#
. /etc/rc.subr
name=logstash
rcvar=logstash_enable
load_rc_config ${name}
logdir="/var/log"
: ${logstash_enable="NO"}
: ${logstash_user="logstash"}
: ${logstash_group="logstash"}
: ${logstash_home="/usr/local/logstash"}
: ${logstash_config="/usr/local/etc/logstash"}
: ${logstash_log="YES"}
: ${logstash_log_dir="${logdir}/${name}"}
: ${logstash_java_home="/usr/local/openjdk11"}
: ${logstash_java_opts=""}
: ${logstash_opts=""}
pidfile=/var/run/${name}/${name}.pid
extra_commands="configtest reload"
start_precmd="logstash_precmd"
configtest_cmd=configtest
logstash_cmd="${logstash_home}/bin/logstash"
procname="${logstash_java_home}/bin/java"
logstash_chdir=${logstash_home}
logstash_log_options=""
if checkyesno logstash_log; then
logstash_log_options=" -l ${logstash_log_dir}"
fi
logstash_args="--path.settings ${logstash_config} ${logstash_log_options} ${logstash_opts}"
JAVA_OPTS="${logstash_java_opts}"
JAVA_HOME="${logstash_java_home}"
export JAVA_OPTS
export JAVA_HOME
command="/usr/sbin/daemon"
command_args="-f -p ${pidfile} ${logstash_cmd} ${logstash_args}"
required_files="${logstash_home} ${logstash_java_home} ${logstash_cmd} ${logstash_config}"
# Include /usr/local/bin in path because Logstash startup scripts
# assume bash is in path.
PATH=/usr/local/bin:$PATH
logstash_precmd()
{
/usr/bin/install -d -o ${logstash_user} -g ${logstash_group} -m 755 ${pidfile%/*}
/usr/bin/install -d -o ${logstash_user} -g ${logstash_group} -m 755 ${logstash_log_dir}
/usr/bin/install -d -o ${logstash_user} -g ${logstash_group} -m 755 /var/db/logstash
/usr/bin/install -d -o ${logstash_user} -g ${logstash_group} -m 755 /var/run/logstash
if [ -d ${logstash_home}/data/queue ]; then
chown ${logstash_user}:${logstash_group} ${logstash_home}/data/queue
fi
}
configtest()
{
echo "${name} configtest:"
echo "WARNING: this does not check validity of Grok patterns!"
echo "WARNING: this does not check validity of Grok patterns!"
echo "WARNING: this does not check validity of Grok patterns!"
${logstash_cmd} --path.settings ${logstash_config} --config.test_and_exit
}
run_rc_command "$1"