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#!/bin/sh /etc/rc.common
# Copyright (C) 2006-2016 OpenWrt.org
START=80
STOP=10
USE_PROCD=1
COLLECTD_CONF="/tmp/collectd.conf"
LOG="logger -t collectd[$$] -p"
NICEPRIO=5
CONFIG_STRING=""
process_exec() {
printf "<Plugin exec>\n" >> "$COLLECTD_CONF"
config_foreach process_exec_sections exec_input "Exec"
config_foreach process_exec_sections exec_notify "NotificationExec"
printf "</Plugin>\n\n" >> "$COLLECTD_CONF"
}
process_exec_sections() {
local cfg="$1"
local section="$2"
local cmdline cmduser cmdgroup
config_get cmdline "$cfg" cmdline
[ -z "$cmdline" ] && {
$LOG notice "No cmdline option in config $cfg defined"
return 0
}
config_get cmduser "$cfg" cmduser
[ -z "$cmduser" ] && {
$LOG notice "No cmduser option in config $cfg defined"
return 0
}
config_get cmdgroup "$cfg" cmdgroup
if [ -z "$cmdgroup" ]; then
printf "\\t%s \"%s\" \"%s\"\n" "${section}" "${cmduser}" "${cmdline}" >> "$COLLECTD_CONF"
else
printf "\\t%s \"%s:%s\" \"%s\"\n" "${section}" "${cmduser}" "${cmdgroup}" "${cmdline}" >> "$COLLECTD_CONF"
fi
}
CONFIG_LIST=""
add_list_option() {
local value="$1"
local option="$2"
local indent="$3"
CONFIG_LIST="${CONFIG_LIST}${indent}${option} \"$value\"\n"
}
process_generic() {
local cfg="$1"
local indent="$2"
local json="$3"
local config=""
. /usr/share/libubox/jshn.sh
json_init
json_load_file "$json"
json_select string 1>/dev/null 2>&1
if [ $? -eq 0 ]; then
json_get_keys keys
for key in ${keys}; do
json_get_var option "$key"
config_get value "$cfg" "$option" ""
[ -z "$value" ] || {
config="${config}${indent}${option} \"${value}\"\n"
}
done
json_select ..
fi
json_select bool 1>/dev/null 2>&1
if [ $? -eq 0 ]; then
json_get_keys keys
for key in ${keys}; do
json_get_var option "$key"
config_get_bool value "$cfg" "$option"
if [ "$value" = "0" ]; then
config="${config}${indent}${option} false\n"
fi
if [ "$value" = "1" ]; then
config="${config}${indent}${option} true\n"
fi
done
json_select ..
fi
json_select list 1>/dev/null 2>&1
if [ $? -eq 0 ]; then
json_get_keys keys
for key in ${keys}; do
json_get_var option "$key"
CONFIG_LIST=""
config_list_foreach "$cfg" "$option" add_list_option "$option" "$indent"
config="${config}${CONFIG_LIST}"
done
json_select ..
fi
[ -z "$config" ] || {
printf "%s<Plugin %s>\n" "${CONFIG_STRING}" "$cfg" >> "$COLLECTD_CONF"
echo -e "${config}" >> "$COLLECTD_CONF"
printf "%s</Plugin>\n" "${CONFIG_STRING}" >> "$COLLECTD_CONF"
}
printf "\n" >> "$COLLECTD_CONF"
}
process_plugins() {
local cfg="$1"
local enable keys key option value
config_get enable "$cfg" enable 0
[ "$enable" = "1" ] || return 0
[ -f "/usr/lib/collectd/$cfg.so" ] || {
$LOG notice "Plugin collectd-mod-$cfg not installed"
return 0
}
[ -f "/usr/share/collectd/plugin/$cfg.json" ] || {
$LOG notice "Configuration definition file for $cfg not found"
return 0
}
printf "LoadPlugin %s\n" "$cfg" >> "$COLLECTD_CONF"
case "$cfg" in
exec)
CONFIG_STRING=""
process_exec
;;
*)
CONFIG_STRING=""
process_generic "$cfg" "\\t" "/usr/share/collectd/plugin/$cfg.json"
;;
esac
}
process_config() {
local alt_config_file BaseDir Include PIDFile PluginDir TypesDB
local Interval ReadThreads Hostname
rm -f "$COLLECTD_CONF"
[ -f /etc/config/collectd ] || {
$LOG notice "UCI config not found"
return 0
}
config_load collectd
config_get alt_config_file globals alt_config_file
# If "alt_config_file" specified, use that instead
[ -n "$alt_config_file" ] && [ -f "$alt_config_file" ] && {
rm -f "$COLLECTD_CONF"
ln -s "$alt_config_file" "$COLLECTD_CONF"
return 0
}
# GOBAL CONFIG
config_get BaseDir globals BaseDir "/var/run/collectd"
printf "BaseDir \"%s\"\n" "$BaseDir" >> "$COLLECTD_CONF"
config_get Include globals Include "/tmp/collectd.d"
printf "Include \"%s\"\n" "$Include" >> "$COLLECTD_CONF"
mkdir -p "$Include"
config_get PIDFile globals PIDFile "/var/run/collectd.pid"
printf "PIDFile \"%s\"\n" "$PIDFile" >> "$COLLECTD_CONF"
config_get PluginDir globals PluginDir "/usr/lib/collectd"
printf "PluginDir \"%s\"\n" "$PluginDir" >> "$COLLECTD_CONF"
config_get TypesDB globals TypesDB "/usr/share/collectd/types.db"
printf "TypesDB \"%s\"\n" "$TypesDB" >> "$COLLECTD_CONF"
config_get Interval globals Interval 30
printf "Interval \"%s\"\n" "$Interval" >> "$COLLECTD_CONF"
config_get ReadThreads globals ReadThreads 2
printf "ReadThreads \"%s\"\n" "$ReadThreads" >> "$COLLECTD_CONF"
config_get Hostname globals Hostname "$(hostname)"
printf "Hostname \"%s\"\n" "$Hostname" >> "$COLLECTD_CONF"
printf "\n" >> "$COLLECTD_CONF"
# PLUGIN CONFIG
config_foreach process_plugins plugin
}
start_service() {
procd_open_instance
procd_set_param command /usr/sbin/collectd
procd_append_param command -C "$COLLECTD_CONF"
procd_append_param command -f # don't daemonize, procd will handle that for us
procd_set_param nice "$NICEPRIO"
process_config
# set auto respawn behavior
procd_set_param respawn
procd_close_instance
}