#!/bin/bash
+netdata=$(which netdata)
+
+if [ -z "${netdata}" -o ! -f src/netdata ]
+then
+ echo >&2 "Running ./autogen.sh ..."
+ ./autogen.sh || exit 1
+
+ echo >&2 "Running ./configure ..."
+ ./configure --prefix=/usr --sysconfdir=/etc --localstatedir=/var --with-zlib --with-math --with-user=netdata CFLAGS="-march=native -O3 -Wall -Wextra" || exit 1
+
+ echo >&2 "Cleaning a possibly old compilation ..."
+ make clean || exit 1
+
+ echo >&2 "Compiling netdata ..."
+ make || exit 1
+fi
+
+if [ -z "${netdata}" -o src/netdata -nt "${netdata}" ]
+then
+ echo >&2 "Installing netdata ..."
+ make install
+
+ echo >&2 "Adding netdata group ..."
+ getent group netdata > /dev/null || groupadd -r netdata
+
+ echo >&2 "Adding netdata user ..."
+ getent passwd netdata > /dev/null || useradd -r -g netdata -c netdata -s /sbin/nologin -d / netdata
+fi
+
+netdata=$(which netdata)
+
base="`dirname "$0"`"
-if [ ! -d "$base" -o ! -f "$base/netdata.c" -o ! -d "$base/web" ]
+if [ ! -d "${base}" ]
then
echo >&2 "Cannot find my home directory '${base}'."
exit 1
fi
-cd "$base" || exit 1
+cd "${base}" || exit 1
-# the detail of the data that will be kept in netdata
-NETDATA_CONFIG_INTERNAL_UPDATE_EVERY=1
-# how many entries to keep in memory
-NETDATA_CONFIG_INTERNAL_HISTORY_LINES=3600
+# -----------------------------------------------------------------------------
+# load options from the configuration file
-# the user to run netdata under
-NETDATA_CONFIG_USER=nobody
+# create an empty config if it does not exist
+[ ! -f conf.d/netdata.conf ] && touch conf.d/netdata.conf
-# set to 1, to enable debugging
-NETDATA_CONFIG_DEBUG=0
+# function to extract values from the config file
+config_option() {
+ local key="${1}" value="${2}" line=
-# our port
-NETDATA_CONFIG_PORT=19999
+ if [ -s "/etc/netdata/netdata.conf" ]
+ then
+ line="$( grep "^[[:space:]]*${key}[[:space:]]*=[[:space:]]*" "conf.d/netdata.conf" | head -n 1 )"
+ [ ! -z "${line}" ] && value="$( echo "${line}" | cut -d '=' -f 2 | sed -e "s/^[[:space:]]\+//g" -e "s/[[:space:]]\+$//g" )"
+ fi
-# our web files
-NETDATA_CONFIG_WEB_DIR=web
+ echo "${value}"
+}
-if [ ! -d log ]
-then
- mkdir log || exit 1
-fi
+# user
+defuser="netdata"
+[ ! "${UID}" = "0" ] && defuser="${USER}"
+NETDATA_USER="$( config_option "run as user" "${defuser}" )"
-if [ ! -d conf.d ]
-then
- mkdir conf.d || exit 1
-fi
+# debug flags
+defdebug=0
+NETDATA_DEBUG="$( config_option "debug flags" ${defdebug} )"
-if [ -f conf.d/netdata.conf ]
-then
- # find if debug is enabled in the config
- df=`grep "debug flags = " conf.d/netdata.conf | tail -n 1 | cut -d '=' -f 2 | sed s"/ //g"`
- if [ -z "$df" -o "$df" = "0x00000000" -o $((df + 1 - 1)) -eq 0 ]
- then
- NETDATA_CONFIG_DEBUG=0
- else
- NETDATA_CONFIG_DEBUG=1
+# port
+defport=19999
+NETDATA_PORT="$( config_option "port" ${defport} )"
+
+# directories
+NETDATA_CACHE_DIR="$( config_option "database directory" "/var/cache/netdata" )"
+NETDATA_WEB_DIR="$( config_option "web files directory" "/usr/share/netdata/web" )"
+NETDATA_LOG_DIR="log"
+NETDATA_CONF_DIR="conf.d"
+
+
+# -----------------------------------------------------------------------------
+# prepare the directories
+
+echo >&2 "Fixing directory permissions for user ${NETDATA_USER}..."
+for x in "${NETDATA_WEB_DIR}" "${NETDATA_CONF_DIR}" "${NETDATA_CACHE_DIR}" "${NETDATA_LOG_DIR}"
+do
+ if [ ! -d "${x}" ]
+ then
+ mkdir "${x}" || exit 1
+ fi
+ chown -R "${NETDATA_USER}" "${x}" || echo >&2 "WARNING: Cannot change the ownership of the files in directory ${x} to ${NETDATA_USER}..."
+ chmod 0775 "${x}" "${x}" || echo >&2 "WARNING: Cannot change the permissions of the directory ${x} to 0755..."
+done
+
+# fix apps.plugin to be setuid to root
+chown root '/usr/libexec/netdata/plugins.d/apps.plugin' && chmod 4755 '/usr/libexec/netdata/plugins.d/apps.plugin'
+
+
+# -----------------------------------------------------------------------------
+# stop a running netdata
+
+printf >&2 "Stopping a (possibly) running netdata..."
+ret=0
+count=0
+while [ $ret -eq 0 ]
+do
+ if [ $count -gt 15 ]
+ then
+ echo >&2 "Cannot stop the running netdata."
+ exit 1
fi
- # find the user to run as
- NETDATA_CONFIG_USER="`grep 'run as user = ' conf.d/netdata.conf | head -n 1 | cut -d '=' -f 2 | sed s"/ //g"`"
- NETDATA_CONFIG_WEB_DIR="`grep 'web files directory = ' conf.d/netdata.conf | head -n 1 | cut -d '=' -f 2 | sed -e s"/^ \+//g" -e s"/ \+$//g"`"
-fi
+ count=$((count + 1))
+ killall netdata 2>/dev/null
+ ret=$?
+ test $ret -eq 0 && printf >&2 "." && sleep 2
+done
+echo >&2
-echo "Compiling netdata (debug=$NETDATA_CONFIG_DEBUG)"
-if [ $NETDATA_CONFIG_DEBUG -eq 1 ]
-then
- ulimit -c unlimited
- make debug=1 || exit 1
- debug_opts="-df 0xfffffadf"
-else
- make || exit 1
- debug_opts="-df 0x00000000"
-fi
-echo "Stopping a (possibly) running netdata..."
-killall netdata 2>/dev/null
-sleep 2
+# -----------------------------------------------------------------------------
+# run netdata
-if [ "$USER" = "root" -a ! -z "$NETDATA_CONFIG_USER" -a -d "$NETDATA_CONFIG_WEB_DIR" ]
-then
- echo "Chaning ownership of web files in $NETDATA_CONFIG_WEB_DIR to $NETDATA_CONFIG_USER"
- chown -R "$NETDATA_CONFIG_USER" "$NETDATA_CONFIG_WEB_DIR" conf.d log || exit 1
- chmod 0775 "$NETDATA_CONFIG_WEB_DIR" || exit 1
-fi
+# avoid extended stat(/etc/localtime)
+# http://stackoverflow.com/questions/4554271/how-to-avoid-excessive-stat-etc-localtime-calls-in-strftime-on-linux
+export TZ=":/etc/localtime"
-if [ ! "$USER" = "root" ]
-then
- echo >&2 "WARNING: NOT RUNNING AS ROOT - CANNOT SWITCH TO USER $NETDATA_CONFIG_USER"
- echo >&2 "WARNING: MAKE SURE FILES IN web/ ARE OWNED BY $USER - or it will not work"
-fi
+echo >&2 "Starting netdata..."
+netdata "${@}"
-echo "Starting netdata..."
-if [ -f conf.d/netdata.conf ]
-then
- `pwd`/netdata
+if [ $? -ne 0 ]
+ then
+ echo >&2
+ echo >&2 "SORRY! FAILED TO START NETDATA!"
+ exit 1
else
- touch conf.d/netdata.conf
+ echo >&2 "OK. NetData Started!"
+fi
- if [ "$USER" = "root" ]
+
+# -----------------------------------------------------------------------------
+# save a config file, if it is not already there
+
+if [ ! -s /etc/netdata/netdata.conf ]
then
- `pwd`/netdata $debug_opts -u $NETDATA_CONFIG_USER -t $NETDATA_CONFIG_INTERNAL_UPDATE_EVERY -l $NETDATA_CONFIG_INTERNAL_HISTORY_LINES -p $NETDATA_CONFIG_PORT || exit 1
- else
- `pwd`/netdata $debug_opts -t $NETDATA_CONFIG_INTERNAL_UPDATE_EVERY -l $NETDATA_CONFIG_INTERNAL_HISTORY_LINES -p $NETDATA_CONFIG_PORT || exit 1
+ echo >&2 "Downloading default configuration from netdata..."
+ sleep 5
+
+ # remove a possibly obsolete download
+ [ -f /etc/netdata/netdata.conf.new ] && rm /etc/netdata/netdata.conf.new
+
+ # try wget
+ wget 2>/dev/null -O /etc/netdata/netdata.conf.new "http://localhost:${NETDATA_PORT}/netdata.conf"
+ ret=$?
+
+ # try curl
+ if [ $ret -ne 0 -o ! -s /etc/netdata/netdata.conf.net ]
+ then
+ curl -s -o /etc/netdata/netdata.conf.new "http://localhost:${NETDATA_PORT}/netdata.conf"
+ ret=$?
fi
- sleep 2
- wget 2>/dev/null -O conf.d/netdata.conf.new http://localhost:$NETDATA_CONFIG_PORT/netdata.conf
- mv conf.d/netdata.conf.new conf.d/netdata.conf
+ if [ $ret -eq 0 -a -s /etc/netdata/netdata.conf.new ]
+ then
+ mv /etc/netdata/netdata.conf.new /etc/netdata/netdata.conf
+ echo >&2 "New configuration saved for you to edit at /etc/netdata/netdata.conf"
- echo "Hit http://127.0.0.1:$NETDATA_CONFIG_PORT/ from your browser."
- echo "You can edit config options in file conf.d/netdata.conf"
+ chown "${NETDATA_USER}" /etc/netdata/netdata.conf
+ chmod 0664 /etc/netdata/netdata.conf
+ else
+ echo >&2 "Cannnot download configuration from netdata daemon using url 'http://localhost:${NETDATA_PORT}/netdata.conf'"
+ [ -f /etc/netdata/netdata.conf.new ] && rm /etc/netdata/netdata.conf.new
+ fi
fi
-echo
-echo "All Done."
-echo
+echo >&2
+echo >&2 "Hit http://localhost:${NETDATA_PORT}/ from your browser."
+echo >&2
+echo >&2 "Enjoy..."
+echo >&2