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#!/bin/sh
# PROVIDE: prometheus
# REQUIRE: LOGIN
# KEYWORD: shutdown
#
# Add the following lines to /etc/rc.conf.local or /etc/rc.conf
# to enable this service:
#
# prometheus_enable (bool)
# Set it to YES to enable prometheus
# Set to NO by default
# prometheus_user (string)
# Set user that prometheus will run under
# Default is "%%PROMETHEUS_USER%%"
# prometheus_group (string)
# Set group that own prometheus files
# Default is "%%PROMETHEUS_GROUP%%"
# prometheus_config (string)
# Set full path to config file
# Default is "%%PREFIX%%/etc/prometheus.yml"
# prometheus_pidfile (string)
# Set full path to pid file
# Default is "/var/run/prometheus.pid"
# prometheus_syslog_output_enable (bool)
# Set it to NO to disable syslog output
# Set to YES by default
# prometheus_syslog_output_tag (str)
# Set syslog tag if syslog enabled
# Default is "prometheus"
# prometheus_syslog_output_priority (string)
# Set syslog priority if syslog enabled
# Default is "info"
# prometheus_syslog_output_facility (string)
# Set syslog facility if syslog enabled
# Default is "daemon"
# prometheus_consoles (string)
# Set dir that contains Prometheus consoles
# Default is "%%PROMETHEUS_CONSOLES_DIR%%"
# prometheus_console_libraries (string)
# Set dir containing Prometheus console libraries
# Default is "%%PROMETHEUS_CONSOLE_LIBRARIES_DIR%%"
# prometheus_data_dir (string)
# Set dir to run prometheus in
# Default is "%%PROMETHEUS_DB_DIR%%"
# prometheus_loglevel (string)
# Set one of [debug, info, warn, error]
# Default is "info"
# prometheus_logformat (string)
# Set one of [logfmt, json]
# Default is "logfmt"
# prometheus_env (string)
# Set environment variables used with prometheus
# Default is ""
# prometheus_args (string)
# Set additional command line arguments
# Default is ""
. /etc/rc.subr
name=prometheus
rcvar=prometheus_enable
load_rc_config $name
: ${prometheus_enable:="NO"}
: ${prometheus_user:="%%PROMETHEUS_USER%%"}
: ${prometheus_group:="%%PROMETHEUS_GROUP%%"}
: ${prometheus_config:="%%PREFIX%%/etc/prometheus.yml"}
: ${prometheus_pidfile:="/var/run/prometheus.pid"}
: ${prometheus_syslog_output_enable:="YES"}
: ${prometheus_consoles_dir:="%%PROMETHEUS_CONSOLES_DIR%%"}
: ${prometheus_console_libraries_dir:="%%PROMETHEUS_CONSOLE_LIBRARIES_DIR%%"}
: ${prometheus_data_dir:="%%PROMETHEUS_DB_DIR%%"}
: ${prometheus_loglevel:="info"}
: ${prometheus_logformat:="logfmt"}
if checkyesno prometheus_syslog_output_enable; then
if [ -n "${prometheus_syslog_output_tag}" ]; then
prometheus_syslog_output_flags="-T ${prometheus_syslog_output_tag}"
else
prometheus_syslog_output_flags="-T ${name}"
fi
if [ -n "${prometheus_syslog_output_priority}" ]; then
prometheus_syslog_output_flags="${prometheus_syslog_output_flags} -s ${prometheus_syslog_output_priority}"
fi
if [ -n "${prometheus_syslog_output_facility}" ]; then
prometheus_syslog_output_flags="${prometheus_syslog_output_flags} -l ${prometheus_syslog_output_facility}"
fi
fi
pidfile="${prometheus_pidfile}"
required_files="${prometheus_config}"
procname="%%PREFIX%%/bin/prometheus"
command="/usr/sbin/daemon"
command_args="-f ${prometheus_syslog_output_flags} -p ${pidfile} -t ${name} \
/usr/bin/env ${prometheus_env} ${procname} \
--config.file=${prometheus_config} \
--web.console.templates=${prometheus_consoles_dir} \
--web.console.libraries=${prometheus_console_libraries_dir} \
--storage.tsdb.path=${prometheus_data_dir} \
--log.level=${prometheus_loglevel} \
--log.format=${prometheus_logformat} \
${prometheus_args}"
start_precmd="prometheus_start_precmd"
extra_commands="reload"
# This checks for the existence of a prometheus 1.x data at the
# $prometheus_data_dir location. If one is found, Prometheus will not start.
prometheus_check_data_version()
{
local _version
local _version_file="${prometheus_data_dir}/VERSION"
if [ -f "${_version_file}" ]; then
read _version < "${_version_file}"
if [ "${_version}" = "1" ]; then
return 1
fi
fi
}
prometheus_start_precmd()
{
if [ ! -e "${pidfile}" ]; then
install -m 0600 -o "${prometheus_user}" -g "${prometheus_group}" /dev/null "${pidfile}"
fi
if [ ! -d "${prometheus_data_dir}" ]; then
install -d -m 750 -o "${prometheus_user}" -g "${prometheus_group}" "${prometheus_data_dir}"
else
# Ensure it's not a prometheus 1.x data
if [ ! prometheus_check_data_version ]; then
err 1 "Found \"net-mgmt/prometheus1\" data, refusing to start."
fi
fi
}
run_rc_command "$1"
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