Merging upstream version 1.12.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 532 insertions, 757 deletions

diff --git a/netdata-installer.sh b/netdata-installer.sh
index dfeb5639..55ee5978 100755
--- a/netdata-installer.sh
+++ b/netdata-installer.sh
@@ -4,29 +4,25 @@
 
 export PATH="${PATH}:/sbin:/usr/sbin:/usr/local/bin:/usr/local/sbin"
 uniquepath() {
-    local path=""
-    while read
-    do
-        if [[ ! "${path}" =~ (^|:)"${REPLY}"(:|$) ]]
-        then
-            [ ! -z "${path}" ] && path="${path}:"
-            path="${path}${REPLY}"
-        fi
-    done < <( echo "${PATH}" | tr ":" "\n" )
-
-    [ ! -z "${path}" ] && [[ "${PATH}" =~ /bin ]] && [[ "${PATH}" =~ /sbin ]] && export PATH="${path}"
+	local path=""
+	while read; do
+		if [[ ! ${path} =~ (^|:)"${REPLY}"(:|$) ]]; then
+			[ ! -z "${path}" ] && path="${path}:"
+			path="${path}${REPLY}"
+		fi
+	done < <(echo "${PATH}" | tr ":" "\n")
+
+	[ ! -z "${path}" ] && [[ ${PATH} =~ /bin ]] && [[ ${PATH} =~ /sbin ]] && export PATH="${path}"
 }
 uniquepath
 
 netdata_source_dir="$(pwd)"
 installer_dir="$(dirname "${0}")"
 
-if [ "${netdata_source_dir}" != "${installer_dir}" -a "${installer_dir}" != "." ]
-    then
-    echo >&2 "Warning: you are currently in '${netdata_source_dir}' but the installer is in '${installer_dir}'."
+if [ "${netdata_source_dir}" != "${installer_dir}" -a "${installer_dir}" != "." ]; then
+	echo >&2 "Warning: you are currently in '${netdata_source_dir}' but the installer is in '${installer_dir}'."
 fi
 
-
 # -----------------------------------------------------------------------------
 # reload the user profile
 
@@ -35,28 +31,36 @@ fi
 # make sure /etc/profile does not change our current directory
 cd "${netdata_source_dir}" || exit 1
 
-
 # -----------------------------------------------------------------------------
 # load the required functions
 
-if [ -f "${installer_dir}/installer/functions.sh" ]
-    then
-    source "${installer_dir}/installer/functions.sh" || exit 1
+if [ -f "${installer_dir}/packaging/installer/functions.sh" ]; then
+	source "${installer_dir}/packaging/installer/functions.sh" || exit 1
 else
-    source "${netdata_source_dir}/installer/functions.sh" || exit 1
+	source "${netdata_source_dir}/packaging/installer/functions.sh" || exit 1
 fi
 
+download() {
+	url="${1}"
+	dest="${2}"
+	if command -v wget >/dev/null 2>&1; then
+		run wget -O - "${url}" >"${dest}" || fatal "Cannot download ${url}"
+	elif command -v curl >/dev/null 2>&1; then
+		run curl "${url}" >"${dest}" || fatal "Cannot download ${url}"
+	else
+		fatal "I need curl or wget to proceed, but neither is available on this system."
+	fi
+}
+
 # make sure we save all commands we run
 run_logfile="netdata-installer.log"
 
-
 # -----------------------------------------------------------------------------
 # fix PKG_CHECK_MODULES error
 
-if [ -d /usr/share/aclocal ]
-then
-        ACLOCAL_PATH=${ACLOCAL_PATH-/usr/share/aclocal}
-        export ACLOCAL_PATH
+if [ -d /usr/share/aclocal ]; then
+	ACLOCAL_PATH=${ACLOCAL_PATH-/usr/share/aclocal}
+	export ACLOCAL_PATH
 fi
 
 export LC_ALL=C
@@ -72,12 +76,15 @@ CFLAGS="${CFLAGS--O2}"
 # keep a log of this command
 printf "\n# " >>netdata-installer.log
 date >>netdata-installer.log
-printf "CFLAGS=\"%s\" " "${CFLAGS}" >>netdata-installer.log
+printf 'CFLAGS="%s" ' "${CFLAGS}" >>netdata-installer.log
 printf "%q " "$0" "${@}" >>netdata-installer.log
 printf "\n" >>netdata-installer.log
 
 REINSTALL_PWD="${PWD}"
-REINSTALL_COMMAND="$(printf "%q " "$0" "${@}"; printf "\n")"
+REINSTALL_COMMAND="$(
+	printf "%q " "$0" "${@}"
+	printf "\n"
+)"
 # remove options that shown not be inherited by netdata-updater.sh
 REINSTALL_COMMAND="${REINSTALL_COMMAND// --dont-wait/}"
 REINSTALL_COMMAND="${REINSTALL_COMMAND// --dont-start-it/}"
@@ -95,8 +102,8 @@ LIBS_ARE_HERE=0
 NETDATA_CONFIGURE_OPTIONS="${NETDATA_CONFIGURE_OPTIONS-}"
 
 usage() {
-    netdata_banner "installer command line options"
-    cat <<USAGE
+	netdata_banner "installer command line options"
+	cat <<USAGE
 
 ${ME} <installer options>
 
@@ -155,6 +162,14 @@ Valid <installer options> are:
         Use this option to allow it continue
         without checking pkg-config.
 
+   --disable-telemetry
+
+        Use this flag to opt-out from our anonymous telemetry progam.
+
+   --disable-go
+
+        Flag to disable installation of go.d.plugin
+
 Netdata will by default be compiled with gcc optimization -O2
 If you need to pass different CFLAGS, use something like this:
 
@@ -173,67 +188,59 @@ For the plugins, you will at least need:
 USAGE
 }
 
-while [ ! -z "${1}" ]
-do
-    if [ "$1" = "--install" ]
-        then
-        NETDATA_PREFIX="${2}/netdata"
-        shift 2
-    elif [ "$1" = "--zlib-is-really-here" -o "$1" = "--libs-are-really-here" ]
-        then
-        LIBS_ARE_HERE=1
-        shift 1
-    elif [ "$1" = "--dont-start-it" ]
-        then
-        DONOTSTART=1
-        shift 1
-    elif [ "$1" = "--dont-wait" ]
-        then
-        DONOTWAIT=1
-        shift 1
-    elif [ "$1" = "--auto-update" -o "$1" = "-u" ]
-        then
-        AUTOUPDATE=1
-        shift 1
-    elif [ "$1" = "--enable-plugin-freeipmi" ]
-        then
-        NETDATA_CONFIGURE_OPTIONS="${NETDATA_CONFIGURE_OPTIONS//--enable-plugin-freeipmi/} --enable-plugin-freeipmi"
-        shift 1
-    elif [ "$1" = "--disable-plugin-freeipmi" ]
-        then
-        NETDATA_CONFIGURE_OPTIONS="${NETDATA_CONFIGURE_OPTIONS//--disable-plugin-freeipmi/} --disable-plugin-freeipmi"
-        shift 1
-    elif [ "$1" = "--enable-plugin-nfacct" ]
-        then
-        NETDATA_CONFIGURE_OPTIONS="${NETDATA_CONFIGURE_OPTIONS//--enable-plugin-nfacct/} --enable-plugin-nfacct"
-        shift 1
-    elif [ "$1" = "--disable-plugin-nfacct" ]
-        then
-        NETDATA_CONFIGURE_OPTIONS="${NETDATA_CONFIGURE_OPTIONS//--disable-plugin-nfacct/} --disable-plugin-nfacct"
-        shift 1
-    elif [ "$1" = "--enable-lto" ]
-        then
-        NETDATA_CONFIGURE_OPTIONS="${NETDATA_CONFIGURE_OPTIONS//--enable-lto/} --enable-lto"
-        shift 1
-    elif [ "$1" = "--disable-lto" ]
-        then
-        NETDATA_CONFIGURE_OPTIONS="${NETDATA_CONFIGURE_OPTIONS//--disable-lto/} --disable-lto"
-        shift 1
-    elif [ "$1" = "--disable-x86-sse" ]
-        then
-        NETDATA_CONFIGURE_OPTIONS="${NETDATA_CONFIGURE_OPTIONS//--disable-x86-sse/} --disable-x86-sse"
-        shift 1
-    elif [ "$1" = "--help" -o "$1" = "-h" ]
-        then
-        usage
-        exit 1
-    else
-        echo >&2
-        echo >&2 "ERROR:"
-        echo >&2 "I cannot understand option '$1'."
-        usage
-        exit 1
-    fi
+while [ ! -z "${1}" ]; do
+	if [ "$1" = "--install" ]; then
+		NETDATA_PREFIX="${2}/netdata"
+		shift 2
+	elif [ "$1" = "--zlib-is-really-here" -o "$1" = "--libs-are-really-here" ]; then
+		LIBS_ARE_HERE=1
+		shift 1
+	elif [ "$1" = "--dont-start-it" ]; then
+		DONOTSTART=1
+		shift 1
+	elif [ "$1" = "--dont-wait" ]; then
+		DONOTWAIT=1
+		shift 1
+	elif [ "$1" = "--auto-update" -o "$1" = "-u" ]; then
+		AUTOUPDATE=1
+		shift 1
+	elif [ "$1" = "--enable-plugin-freeipmi" ]; then
+		NETDATA_CONFIGURE_OPTIONS="${NETDATA_CONFIGURE_OPTIONS//--enable-plugin-freeipmi/} --enable-plugin-freeipmi"
+		shift 1
+	elif [ "$1" = "--disable-plugin-freeipmi" ]; then
+		NETDATA_CONFIGURE_OPTIONS="${NETDATA_CONFIGURE_OPTIONS//--disable-plugin-freeipmi/} --disable-plugin-freeipmi"
+		shift 1
+	elif [ "$1" = "--enable-plugin-nfacct" ]; then
+		NETDATA_CONFIGURE_OPTIONS="${NETDATA_CONFIGURE_OPTIONS//--enable-plugin-nfacct/} --enable-plugin-nfacct"
+		shift 1
+	elif [ "$1" = "--disable-plugin-nfacct" ]; then
+		NETDATA_CONFIGURE_OPTIONS="${NETDATA_CONFIGURE_OPTIONS//--disable-plugin-nfacct/} --disable-plugin-nfacct"
+		shift 1
+	elif [ "$1" = "--enable-lto" ]; then
+		NETDATA_CONFIGURE_OPTIONS="${NETDATA_CONFIGURE_OPTIONS//--enable-lto/} --enable-lto"
+		shift 1
+	elif [ "$1" = "--disable-lto" ]; then
+		NETDATA_CONFIGURE_OPTIONS="${NETDATA_CONFIGURE_OPTIONS//--disable-lto/} --disable-lto"
+		shift 1
+	elif [ "$1" = "--disable-x86-sse" ]; then
+		NETDATA_CONFIGURE_OPTIONS="${NETDATA_CONFIGURE_OPTIONS//--disable-x86-sse/} --disable-x86-sse"
+		shift 1
+	elif [ "$1" = "--disable-telemetry" ]; then
+		NETDATA_DISABLE_TELEMETRY=1
+		shift 1
+	elif [ "$1" = "--disable-go" ]; then
+		NETDATA_DISABLE_GO=1
+		shift 1
+	elif [ "$1" = "--help" -o "$1" = "-h" ]; then
+		usage
+		exit 1
+	else
+		echo >&2
+		echo >&2 "ERROR:"
+		echo >&2 "I cannot understand option '$1'."
+		usage
+		exit 1
+	fi
 done
 
 # replace multiple spaces with a single space
@@ -267,86 +274,79 @@ cat <<BANNER3
 
 BANNER3
 
-if [ "${UID}" -ne 0 ]
-    then
-    if [ -z "${NETDATA_PREFIX}" ]
-        then
-        netdata_banner "wrong command line options!"
-        cat <<NONROOTNOPREFIX
+if [ "${UID}" -ne 0 ]; then
+	if [ -z "${NETDATA_PREFIX}" ]; then
+		netdata_banner "wrong command line options!"
+		cat <<NONROOTNOPREFIX
   
   ${TPUT_RED}${TPUT_BOLD}Sorry! This will fail!${TPUT_RESET}
-  
+
   You are attempting to install netdata as non-root, but you plan
   to install it in system paths.
-  
+
   Please set an installation prefix, like this:
-  
+
       $0 ${@} --install /tmp
-  
+
   or, run the installer as root:
-  
+
       sudo $0 ${@}
-  
+
   We suggest to install it as root, or certain data collectors will
   not be able to work. Netdata drops root privileges when running.
   So, if you plan to keep it, install it as root to get the full
   functionality.
-  
+
 NONROOTNOPREFIX
-        exit 1
+		exit 1
 
-    else
-        cat <<NONROOT
+	else
+		cat <<NONROOT
  
   ${TPUT_RED}${TPUT_BOLD}IMPORTANT${TPUT_RESET}:
   You are about to install netdata as a non-root user.
   Netdata will work, but a few data collection modules that
   require root access will fail.
-  
+
   If you installing netdata permanently on your system, run
   the installer like this:
-  
+
      ${TPUT_YELLOW}${TPUT_BOLD}sudo $0 ${@}${TPUT_RESET}
 
 NONROOT
-    fi
+	fi
 fi
 
 have_autotools=
-if [ "$(type autoreconf 2> /dev/null)" ]
-then
-    autoconf_maj_min() {
-        local maj min IFS=.-
-
-        maj=$1
-        min=$2
-
-        set -- $(autoreconf -V | sed -ne '1s/.* \([^ ]*\)$/\1/p')
-        eval $maj=\$1 $min=\$2
-    }
-    autoconf_maj_min AMAJ AMIN
-
-    if [ "$AMAJ" -gt 2 ]
-    then
-        have_autotools=Y
-    elif [ "$AMAJ" -eq 2 -a "$AMIN" -ge 60 ]
-    then
-        have_autotools=Y
-    else
-        echo "Found autotools $AMAJ.$AMIN"
-    fi
+if [ "$(type autoreconf 2>/dev/null)" ]; then
+	autoconf_maj_min() {
+		local maj min IFS=.-
+
+		maj=$1
+		min=$2
+
+		set -- $(autoreconf -V | sed -ne '1s/.* \([^ ]*\)$/\1/p')
+		eval $maj=\$1 $min=\$2
+	}
+	autoconf_maj_min AMAJ AMIN
+
+	if [ "$AMAJ" -gt 2 ]; then
+		have_autotools=Y
+	elif [ "$AMAJ" -eq 2 -a "$AMIN" -ge 60 ]; then
+		have_autotools=Y
+	else
+		echo "Found autotools $AMAJ.$AMIN"
+	fi
 else
-    echo "No autotools found"
+	echo "No autotools found"
 fi
 
-if [ ! "$have_autotools" ]
-then
-    if [ -f configure ]
-    then
-        echo "Will skip autoreconf step"
-    else
-        netdata_banner "autotools v2.60 required"
-        cat <<"EOF"
+if [ ! "$have_autotools" ]; then
+	if [ -f configure ]; then
+		echo "Will skip autoreconf step"
+	else
+		netdata_banner "autotools v2.60 required"
+		cat <<"EOF"
 
 -------------------------------------------------------------------------------
 autotools 2.60 or later is required
@@ -355,25 +355,23 @@ Sorry, you do not seem to have autotools 2.60 or later, which is
 required to build from the git sources of netdata.
 
 EOF
-        exit 1
-    fi
+		exit 1
+	fi
 fi
 
-if [ ${DONOTWAIT} -eq 0 ]
-    then
-    if [ ! -z "${NETDATA_PREFIX}" ]
-        then
-        eval "read >&2 -ep \$'\001${TPUT_BOLD}${TPUT_GREEN}\002Press ENTER to build and install netdata to \'\001${TPUT_CYAN}\002${NETDATA_PREFIX}\001${TPUT_YELLOW}\002\'\001${TPUT_RESET}\002 > ' -e -r REPLY"
-        [ $? -ne 0 ] && exit 1
-    else
-        eval "read >&2 -ep \$'\001${TPUT_BOLD}${TPUT_GREEN}\002Press ENTER to build and install netdata to your system\001${TPUT_RESET}\002 > ' -e -r REPLY"
-        [ $? -ne 0 ] && exit 1
-    fi
+if [ ${DONOTWAIT} -eq 0 ]; then
+	if [ ! -z "${NETDATA_PREFIX}" ]; then
+		eval "read >&2 -ep \$'\001${TPUT_BOLD}${TPUT_GREEN}\002Press ENTER to build and install netdata to \'\001${TPUT_CYAN}\002${NETDATA_PREFIX}\001${TPUT_YELLOW}\002\'\001${TPUT_RESET}\002 > ' -e -r REPLY"
+		[ $? -ne 0 ] && exit 1
+	else
+		eval "read >&2 -ep \$'\001${TPUT_BOLD}${TPUT_GREEN}\002Press ENTER to build and install netdata to your system\001${TPUT_RESET}\002 > ' -e -r REPLY"
+		[ $? -ne 0 ] && exit 1
+	fi
 fi
 
 build_error() {
-    netdata_banner "sorry, it failed to build..."
-    cat <<EOF
+	netdata_banner "sorry, it failed to build..."
+	cat <<EOF
 
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
@@ -403,41 +401,38 @@ If you still cannot get it to build, ask for help at github:
 
 
 EOF
-    trap - EXIT
-    exit 1
+	trap - EXIT
+	exit 1
 }
 
-if [ ${LIBS_ARE_HERE} -eq 1 ]
-    then
-    shift
-    echo >&2 "ok, assuming libs are really installed."
-    export ZLIB_CFLAGS=" "
-    export ZLIB_LIBS="-lz"
-    export UUID_CFLAGS=" "
-    export UUID_LIBS="-luuid"
+if [ ${LIBS_ARE_HERE} -eq 1 ]; then
+	shift
+	echo >&2 "ok, assuming libs are really installed."
+	export ZLIB_CFLAGS=" "
+	export ZLIB_LIBS="-lz"
+	export UUID_CFLAGS=" "
+	export UUID_LIBS="-luuid"
 fi
 
 trap build_error EXIT
 
-
 # -----------------------------------------------------------------------------
 echo >&2
 progress "Run autotools to configure the build environment"
 
-if [ "$have_autotools" ]
-then
-    run autoreconf -ivf || exit 1
+if [ "$have_autotools" ]; then
+	run autoreconf -ivf || exit 1
 fi
 
 run ./configure \
-    --prefix="${NETDATA_PREFIX}/usr" \
-    --sysconfdir="${NETDATA_PREFIX}/etc" \
-    --localstatedir="${NETDATA_PREFIX}/var" \
-    --with-zlib \
-    --with-math \
-    --with-user=netdata \
-    ${NETDATA_CONFIGURE_OPTIONS} \
-    CFLAGS="${CFLAGS}" || exit 1
+	--prefix="${NETDATA_PREFIX}/usr" \
+	--sysconfdir="${NETDATA_PREFIX}/etc" \
+	--localstatedir="${NETDATA_PREFIX}/var" \
+	--with-zlib \
+	--with-math \
+	--with-user=netdata \
+	${NETDATA_CONFIGURE_OPTIONS} \
+	CFLAGS="${CFLAGS}" || exit 1
 
 # remove the build_error hook
 trap - EXIT
@@ -445,57 +440,46 @@ trap - EXIT
 # -----------------------------------------------------------------------------
 progress "Cleanup compilation directory"
 
-[ -f src/netdata ] && run make clean
-
+run make clean
 
 # -----------------------------------------------------------------------------
 progress "Compile netdata"
 
 run make -j${SYSTEM_CPUS} || exit 1
 
-
 # -----------------------------------------------------------------------------
 progress "Migrate configuration files for node.d.plugin and charts.d.plugin"
 
 # migrate existing configuration files
 # for node.d and charts.d
-if [ -d "${NETDATA_PREFIX}/etc/netdata" ]
-    then
-    # the configuration directory exists
-
-    if [ ! -d "${NETDATA_PREFIX}/etc/netdata/charts.d" ]
-        then
-        run mkdir "${NETDATA_PREFIX}/etc/netdata/charts.d"
-    fi
-
-    # move the charts.d config files
-    for x in apache ap cpu_apps cpufreq example exim hddtemp load_average mem_apps mysql nginx nut opensips phpfpm postfix sensors squid tomcat
-    do
-        for y in "" ".old" ".orig"
-        do
-            if [ -f "${NETDATA_PREFIX}/etc/netdata/${x}.conf${y}" -a ! -f "${NETDATA_PREFIX}/etc/netdata/charts.d/${x}.conf${y}" ]
-                then
-                run mv -f "${NETDATA_PREFIX}/etc/netdata/${x}.conf${y}" "${NETDATA_PREFIX}/etc/netdata/charts.d/${x}.conf${y}"
-            fi
-        done
-    done
-
-    if [ ! -d "${NETDATA_PREFIX}/etc/netdata/node.d" ]
-        then
-        run mkdir "${NETDATA_PREFIX}/etc/netdata/node.d"
-    fi
-
-    # move the node.d config files
-    for x in named sma_webbox snmp
-    do
-        for y in "" ".old" ".orig"
-        do
-            if [ -f "${NETDATA_PREFIX}/etc/netdata/${x}.conf${y}" -a ! -f "${NETDATA_PREFIX}/etc/netdata/node.d/${x}.conf${y}" ]
-                then
-                run mv -f "${NETDATA_PREFIX}/etc/netdata/${x}.conf${y}" "${NETDATA_PREFIX}/etc/netdata/node.d/${x}.conf${y}"
-            fi
-        done
-    done
+if [ -d "${NETDATA_PREFIX}/etc/netdata" ]; then
+	# the configuration directory exists
+
+	if [ ! -d "${NETDATA_PREFIX}/etc/netdata/charts.d" ]; then
+		run mkdir "${NETDATA_PREFIX}/etc/netdata/charts.d"
+	fi
+
+	# move the charts.d config files
+	for x in apache ap cpu_apps cpufreq example exim hddtemp load_average mem_apps mysql nginx nut opensips phpfpm postfix sensors squid tomcat; do
+		for y in "" ".old" ".orig"; do
+			if [ -f "${NETDATA_PREFIX}/etc/netdata/${x}.conf${y}" -a ! -f "${NETDATA_PREFIX}/etc/netdata/charts.d/${x}.conf${y}" ]; then
+				run mv -f "${NETDATA_PREFIX}/etc/netdata/${x}.conf${y}" "${NETDATA_PREFIX}/etc/netdata/charts.d/${x}.conf${y}"
+			fi
+		done
+	done
+
+	if [ ! -d "${NETDATA_PREFIX}/etc/netdata/node.d" ]; then
+		run mkdir "${NETDATA_PREFIX}/etc/netdata/node.d"
+	fi
+
+	# move the node.d config files
+	for x in named sma_webbox snmp; do
+		for y in "" ".old" ".orig"; do
+			if [ -f "${NETDATA_PREFIX}/etc/netdata/${x}.conf${y}" -a ! -f "${NETDATA_PREFIX}/etc/netdata/node.d/${x}.conf${y}" ]; then
+				run mv -f "${NETDATA_PREFIX}/etc/netdata/${x}.conf${y}" "${NETDATA_PREFIX}/etc/netdata/node.d/${x}.conf${y}"
+			fi
+		done
+	done
 fi
 
 # -----------------------------------------------------------------------------
@@ -504,72 +488,63 @@ fi
 md5sum="$(which md5sum 2>/dev/null || command -v md5sum 2>/dev/null || command -v md5 2>/dev/null)"
 
 deleted_stock_configs=0
-if [ ! -f "${NETDATA_PREFIX}/etc/netdata/.installer-cleanup-of-stock-configs-done" ]
-then
-
-    progress "Backup existing netdata configuration before installing it"
-
-    if [ "${BASH_VERSINFO[0]}" -ge "4" ]
-    then
-        declare -A configs_signatures=()
-        if [ -f "configs.signatures" ]
-            then
-            source "configs.signatures" || echo >&2 "ERROR: Failed to load configs.signatures !"
-        fi
-    fi
-
-    config_signature_matches() {
-        local md5="${1}" file="${2}"
-
-        if [ "${BASH_VERSINFO[0]}" -ge "4" ]
-            then
-            [ "${configs_signatures[${md5}]}" = "${file}" ] && return 0
-            return 1
-        fi
-
-        if [ -f "configs.signatures" ]
-            then
-            grep "\['${md5}'\]='${file}'" "configs.signatures" >/dev/null
-            return $?
-        fi
-
-        return 1
-    }
-
-    # clean up stock config files from the user configuration directory
-    for x in $(find -L "${NETDATA_PREFIX}/etc/netdata" -type f)
-    do
-        if [ -f "${x}" ]
-            then
-            # find it relative filename
-            f="${x/${NETDATA_PREFIX}\/etc\/netdata\//}"
-
-            # find the stock filename
-            t="${f/.conf.installer_backup.*/.conf}"
-            t="${t/.conf.old/.conf}"
-            t="${t/.conf.orig/.conf}"
-
-            if [ -z "${md5sum}" -o ! -x "${md5sum}" ]
-                then
-                # we don't have md5sum - keep it
-                echo >&2 "File '${TPUT_CYAN}${x}${TPUT_RESET}' ${TPUT_RET}is not known to distribution${TPUT_RESET}. Keeping it."
-            else
-                # find its checksum
-                md5="$(${md5sum} <"${x}" | cut -d ' ' -f 1)"
-
-                if config_signature_matches "${md5}" "${t}"
-                    then
-                    # it is a stock version - remove it
-                    echo >&2 "File '${TPUT_CYAN}${x}${TPUT_RESET}' is stock version of '${t}'."
-                    run rm -f "${x}"
-                    deleted_stock_configs=$(( deleted_stock_configs + 1 ))
-                else
-                    # edited by user - keep it
-                    echo >&2 "File '${TPUT_CYAN}${x}${TPUT_RESET}' ${TPUT_RED} does not match stock of '${t}'${TPUT_RESET}. Keeping it."
-                fi
-            fi
-        fi
-    done
+if [ ! -f "${NETDATA_PREFIX}/etc/netdata/.installer-cleanup-of-stock-configs-done" ]; then
+
+	progress "Backup existing netdata configuration before installing it"
+
+	if [ "${BASH_VERSINFO[0]}" -ge "4" ]; then
+		declare -A configs_signatures=()
+		if [ -f "configs.signatures" ]; then
+			source "configs.signatures" || echo >&2 "ERROR: Failed to load configs.signatures !"
+		fi
+	fi
+
+	config_signature_matches() {
+		local md5="${1}" file="${2}"
+
+		if [ "${BASH_VERSINFO[0]}" -ge "4" ]; then
+			[ "${configs_signatures[${md5}]}" = "${file}" ] && return 0
+			return 1
+		fi
+
+		if [ -f "configs.signatures" ]; then
+			grep "\['${md5}'\]='${file}'" "configs.signatures" >/dev/null
+			return $?
+		fi
+
+		return 1
+	}
+
+	# clean up stock config files from the user configuration directory
+	for x in $(find -L "${NETDATA_PREFIX}/etc/netdata" -type f); do
+		if [ -f "${x}" ]; then
+			# find it relative filename
+			f="${x/${NETDATA_PREFIX}\/etc\/netdata\//}"
+
+			# find the stock filename
+			t="${f/.conf.installer_backup.*/.conf}"
+			t="${t/.conf.old/.conf}"
+			t="${t/.conf.orig/.conf}"
+
+			if [ -z "${md5sum}" -o ! -x "${md5sum}" ]; then
+				# we don't have md5sum - keep it
+				echo >&2 "File '${TPUT_CYAN}${x}${TPUT_RESET}' ${TPUT_RET}is not known to distribution${TPUT_RESET}. Keeping it."
+			else
+				# find its checksum
+				md5="$(${md5sum} <"${x}" | cut -d ' ' -f 1)"
+
+				if config_signature_matches "${md5}" "${t}"; then
+					# it is a stock version - remove it
+					echo >&2 "File '${TPUT_CYAN}${x}${TPUT_RESET}' is stock version of '${t}'."
+					run rm -f "${x}"
+					deleted_stock_configs=$((deleted_stock_configs + 1))
+				else
+					# edited by user - keep it
+					echo >&2 "File '${TPUT_CYAN}${x}${TPUT_RESET}' ${TPUT_RED} does not match stock of '${t}'${TPUT_RESET}. Keeping it."
+				fi
+			fi
+		fi
+	done
 fi
 touch "${NETDATA_PREFIX}/etc/netdata/.installer-cleanup-of-stock-configs-done"
 
@@ -578,13 +553,11 @@ progress "Install netdata"
 
 run make install || exit 1
 
-
 # -----------------------------------------------------------------------------
 progress "Fix generated files permissions"
 
 run find ./system/ -type f -a \! -name \*.in -a \! -name Makefile\* -a \! -name \*.conf -a \! -name \*.service -a \! -name \*.logrotate -exec chmod 755 {} \;
 
-
 # -----------------------------------------------------------------------------
 progress "Add user netdata to required user groups"
 
@@ -592,68 +565,63 @@ homedir="${NETDATA_PREFIX}/var/lib/netdata"
 [ ! -z "${NETDATA_PREFIX}" ] && homedir="${NETDATA_PREFIX}"
 add_netdata_user_and_group "${homedir}" || run_failed "The installer does not run as root."
 
-
 # -----------------------------------------------------------------------------
 progress "Install logrotate configuration for netdata"
 
 install_netdata_logrotate
 
-
 # -----------------------------------------------------------------------------
 progress "Read installation options from netdata.conf"
 
 # create an empty config if it does not exist
-[ ! -f "${NETDATA_PREFIX}/etc/netdata/netdata.conf" ] && \
-    touch "${NETDATA_PREFIX}/etc/netdata/netdata.conf"
+[ ! -f "${NETDATA_PREFIX}/etc/netdata/netdata.conf" ] &&
+	touch "${NETDATA_PREFIX}/etc/netdata/netdata.conf"
 
 # function to extract values from the config file
 config_option() {
-    local section="${1}" key="${2}" value="${3}"
-
-    if [ -s "${NETDATA_PREFIX}/etc/netdata/netdata.conf" ]
-        then
-        "${NETDATA_PREFIX}/usr/sbin/netdata" \
-            -c "${NETDATA_PREFIX}/etc/netdata/netdata.conf" \
-            -W get "${section}" "${key}" "${value}" || \
-            echo "${value}"
-    else
-        echo "${value}"
-    fi
+	local section="${1}" key="${2}" value="${3}"
+
+	if [ -s "${NETDATA_PREFIX}/etc/netdata/netdata.conf" ]; then
+		"${NETDATA_PREFIX}/usr/sbin/netdata" \
+			-c "${NETDATA_PREFIX}/etc/netdata/netdata.conf" \
+			-W get "${section}" "${key}" "${value}" ||
+			echo "${value}"
+	else
+		echo "${value}"
+	fi
 }
 
 # the user netdata will run as
-if [ "${UID}" = "0" ]
-    then
-    NETDATA_USER="$( config_option "global" "run as user" "netdata" )"
-    ROOT_USER="root"
+if [ "${UID}" = "0" ]; then
+	NETDATA_USER="$(config_option "global" "run as user" "netdata")"
+	ROOT_USER="root"
 else
-    NETDATA_USER="${USER}"
-    ROOT_USER="${NETDATA_USER}"
+	NETDATA_USER="${USER}"
+	ROOT_USER="${NETDATA_USER}"
 fi
 NETDATA_GROUP="$(id -g -n ${NETDATA_USER})"
 [ -z "${NETDATA_GROUP}" ] && NETDATA_GROUP="${NETDATA_USER}"
 
 # the owners of the web files
-NETDATA_WEB_USER="$(  config_option "web" "web files owner" "${NETDATA_USER}" )"
+NETDATA_WEB_USER="$(config_option "web" "web files owner" "${NETDATA_USER}")"
 NETDATA_WEB_GROUP="${NETDATA_GROUP}"
-if [ "${UID}" = "0" -a "${NETDATA_USER}" != "${NETDATA_WEB_USER}" ]
-then
-    NETDATA_WEB_GROUP="$(id -g -n ${NETDATA_WEB_USER})"
-    [ -z "${NETDATA_WEB_GROUP}" ] && NETDATA_WEB_GROUP="${NETDATA_WEB_USER}"
+if [ "${UID}" = "0" -a "${NETDATA_USER}" != "${NETDATA_WEB_USER}" ]; then
+	NETDATA_WEB_GROUP="$(id -g -n ${NETDATA_WEB_USER})"
+	[ -z "${NETDATA_WEB_GROUP}" ] && NETDATA_WEB_GROUP="${NETDATA_WEB_USER}"
 fi
-NETDATA_WEB_GROUP="$( config_option "web" "web files group" "${NETDATA_WEB_GROUP}" )"
+NETDATA_WEB_GROUP="$(config_option "web" "web files group" "${NETDATA_WEB_GROUP}")"
 
 # port
 defport=19999
-NETDATA_PORT="$( config_option "web" "default port" ${defport} )"
+NETDATA_PORT="$(config_option "web" "default port" ${defport})"
 
 # directories
-NETDATA_LIB_DIR="$( config_option "global" "lib directory" "${NETDATA_PREFIX}/var/lib/netdata" )"
-NETDATA_CACHE_DIR="$( config_option "global" "cache directory" "${NETDATA_PREFIX}/var/cache/netdata" )"
-NETDATA_WEB_DIR="$( config_option "global" "web files directory" "${NETDATA_PREFIX}/usr/share/netdata/web" )"
-NETDATA_LOG_DIR="$( config_option "global" "log directory" "${NETDATA_PREFIX}/var/log/netdata" )"
-NETDATA_USER_CONFIG_DIR="$( config_option "global" "config directory" "${NETDATA_PREFIX}/etc/netdata" )"
-NETDATA_STOCK_CONFIG_DIR="$( config_option "global" "stock config directory" "${NETDATA_PREFIX}/usr/lib/netdata/conf.d" )"
+NETDATA_LIB_DIR="$(config_option "global" "lib directory" "${NETDATA_PREFIX}/var/lib/netdata")"
+NETDATA_CACHE_DIR="$(config_option "global" "cache directory" "${NETDATA_PREFIX}/var/cache/netdata")"
+NETDATA_WEB_DIR="$(config_option "global" "web files directory" "${NETDATA_PREFIX}/usr/share/netdata/web")"
+NETDATA_LOG_DIR="$(config_option "global" "log directory" "${NETDATA_PREFIX}/var/log/netdata")"
+NETDATA_USER_CONFIG_DIR="$(config_option "global" "config directory" "${NETDATA_PREFIX}/etc/netdata")"
+NETDATA_STOCK_CONFIG_DIR="$(config_option "global" "stock config directory" "${NETDATA_PREFIX}/usr/lib/netdata/conf.d")"
 NETDATA_RUN_DIR="${NETDATA_PREFIX}/var/run"
 
 cat <<OPTIONSEOF
@@ -682,21 +650,18 @@ OPTIONSEOF
 # -----------------------------------------------------------------------------
 progress "Fix permissions of netdata directories (using user '${NETDATA_USER}')"
 
-if [ ! -d "${NETDATA_RUN_DIR}" ]
-    then
-    # this is needed if NETDATA_PREFIX is not empty
-    run mkdir -p "${NETDATA_RUN_DIR}" || exit 1
+if [ ! -d "${NETDATA_RUN_DIR}" ]; then
+	# this is needed if NETDATA_PREFIX is not empty
+	run mkdir -p "${NETDATA_RUN_DIR}" || exit 1
 fi
 
 # --- conf dir ----
 
-for x in "python.d" "charts.d" "node.d" "health.d" "statsd.d"
-do
-    if [ ! -d "${NETDATA_USER_CONFIG_DIR}/${x}" ]
-        then
-        echo >&2 "Creating directory '${NETDATA_USER_CONFIG_DIR}/${x}'"
-        run mkdir -p "${NETDATA_USER_CONFIG_DIR}/${x}" || exit 1
-    fi
+for x in "python.d" "charts.d" "node.d" "health.d" "statsd.d" "go.d"; do
+	if [ ! -d "${NETDATA_USER_CONFIG_DIR}/${x}" ]; then
+		echo >&2 "Creating directory '${NETDATA_USER_CONFIG_DIR}/${x}'"
+		run mkdir -p "${NETDATA_USER_CONFIG_DIR}/${x}" || exit 1
+	fi
 done
 run chown -R "${ROOT_USER}:${NETDATA_GROUP}" "${NETDATA_USER_CONFIG_DIR}"
 run find "${NETDATA_USER_CONFIG_DIR}" -type f -exec chmod 0640 {} \;
@@ -709,13 +674,11 @@ run chmod 755 "${NETDATA_USER_CONFIG_DIR}/edit-config"
 
 helplink="000.-.USE.THE.orig.LINK.TO.COPY.AND.EDIT.STOCK.CONFIG.FILES"
 [ ${deleted_stock_configs} -eq 0 ] && helplink=""
-for link in "orig" "${helplink}"
-do
-    if [ ! -z "${link}" ]
-    then
-        [ -L "${NETDATA_USER_CONFIG_DIR}/${link}" ] && run rm -f "${NETDATA_USER_CONFIG_DIR}/${link}"
-        run ln -s "${NETDATA_STOCK_CONFIG_DIR}" "${NETDATA_USER_CONFIG_DIR}/${link}"
-    fi
+for link in "orig" "${helplink}"; do
+	if [ ! -z "${link}" ]; then
+		[ -L "${NETDATA_USER_CONFIG_DIR}/${link}" ] && run rm -f "${NETDATA_USER_CONFIG_DIR}/${link}"
+		run ln -s "${NETDATA_STOCK_CONFIG_DIR}" "${NETDATA_USER_CONFIG_DIR}/${link}"
+	fi
 done
 run chown -R "${ROOT_USER}:${NETDATA_GROUP}" "${NETDATA_STOCK_CONFIG_DIR}"
 run find "${NETDATA_STOCK_CONFIG_DIR}" -type f -exec chmod 0640 {} \;
@@ -723,10 +686,9 @@ run find "${NETDATA_STOCK_CONFIG_DIR}" -type d -exec chmod 0755 {} \;
 
 # --- web dir ----
 
-if [ ! -d "${NETDATA_WEB_DIR}" ]
-    then
-    echo >&2 "Creating directory '${NETDATA_WEB_DIR}'"
-    run mkdir -p "${NETDATA_WEB_DIR}" || exit 1
+if [ ! -d "${NETDATA_WEB_DIR}" ]; then
+	echo >&2 "Creating directory '${NETDATA_WEB_DIR}'"
+	run mkdir -p "${NETDATA_WEB_DIR}" || exit 1
 fi
 run chown -R "${NETDATA_WEB_USER}:${NETDATA_WEB_GROUP}" "${NETDATA_WEB_DIR}"
 run find "${NETDATA_WEB_DIR}" -type f -exec chmod 0664 {} \;
@@ -734,101 +696,146 @@ run find "${NETDATA_WEB_DIR}" -type d -exec chmod 0775 {} \;
 
 # --- data dirs ----
 
-for x in "${NETDATA_LIB_DIR}" "${NETDATA_CACHE_DIR}" "${NETDATA_LOG_DIR}"
-do
-    if [ ! -d "${x}" ]
-        then
-        echo >&2 "Creating directory '${x}'"
-        run mkdir -p "${x}" || exit 1
-    fi
-
-    run chown -R "${NETDATA_USER}:${NETDATA_GROUP}" "${x}"
-    #run find "${x}" -type f -exec chmod 0660 {} \;
-    #run find "${x}" -type d -exec chmod 0770 {} \;
+for x in "${NETDATA_LIB_DIR}" "${NETDATA_CACHE_DIR}" "${NETDATA_LOG_DIR}"; do
+	if [ ! -d "${x}" ]; then
+		echo >&2 "Creating directory '${x}'"
+		run mkdir -p "${x}" || exit 1
+	fi
+
+	run chown -R "${NETDATA_USER}:${NETDATA_GROUP}" "${x}"
+	#run find "${x}" -type f -exec chmod 0660 {} \;
+	#run find "${x}" -type d -exec chmod 0770 {} \;
 done
 
 run chmod 755 "${NETDATA_LOG_DIR}"
 
 # --- plugins ----
 
-if [ ${UID} -eq 0 ]
-    then
-    # find the admin group
-    admin_group=
-    test -z "${admin_group}" && getent group root >/dev/null 2>&1 && admin_group="root"
-    test -z "${admin_group}" && getent group daemon >/dev/null 2>&1 && admin_group="daemon"
-    test -z "${admin_group}" && admin_group="${NETDATA_GROUP}"
-
-    run chown "${NETDATA_USER}:${admin_group}" "${NETDATA_LOG_DIR}"
-    run chown -R root "${NETDATA_PREFIX}/usr/libexec/netdata"
-    run find "${NETDATA_PREFIX}/usr/libexec/netdata" -type d -exec chmod 0755 {} \;
-    run find "${NETDATA_PREFIX}/usr/libexec/netdata" -type f -exec chmod 0644 {} \;
-    run find "${NETDATA_PREFIX}/usr/libexec/netdata" -type f -a -name \*.plugin -exec chmod 0755 {} \;
-    run find "${NETDATA_PREFIX}/usr/libexec/netdata" -type f -a -name \*.sh -exec chmod 0755 {} \;
-
-    if [ -f "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/apps.plugin" ]
-    then
-        setcap_ret=1
-        if ! iscontainer
-            then
-            if [ ! -z "${setcap}" ]
-                then
-                run chown root:${NETDATA_GROUP} "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/apps.plugin"
-                run chmod 0750 "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/apps.plugin"
-                run setcap cap_dac_read_search,cap_sys_ptrace+ep "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/apps.plugin"
-                setcap_ret=$?
-            fi
-
-            if [ ${setcap_ret} -eq 0 ]
-                then
-                # if we managed to setcap
-                # but we fail to execute apps.plugin
-                # trigger setuid to root
-                "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/apps.plugin" -t >/dev/null 2>&1
-                setcap_ret=$?
-            fi
-        fi
-
-        if [ ${setcap_ret} -ne 0 ]
-            then
-            # fix apps.plugin to be setuid to root
-            run chown root:${NETDATA_GROUP} "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/apps.plugin"
-            run chmod 4750 "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/apps.plugin"
-        fi
-    fi
-
-    if [ -f "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/freeipmi.plugin" ]
-        then
-        run chown root:${NETDATA_GROUP} "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/freeipmi.plugin"
-        run chmod 4750 "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/freeipmi.plugin"
-    fi
-
-    if [ -f "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/cgroup-network" ]
-        then
-        run chown root:${NETDATA_GROUP} "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/cgroup-network"
-        run chmod 4750 "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/cgroup-network"
-    fi
-
-    if [ -f "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/cgroup-network-helper.sh" ]
-        then
-        run chown root "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/cgroup-network-helper.sh"
-        run chmod 0550 "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/cgroup-network-helper.sh"
-    fi
+if [ ${UID} -eq 0 ]; then
+	# find the admin group
+	admin_group=
+	test -z "${admin_group}" && getent group root >/dev/null 2>&1 && admin_group="root"
+	test -z "${admin_group}" && getent group daemon >/dev/null 2>&1 && admin_group="daemon"
+	test -z "${admin_group}" && admin_group="${NETDATA_GROUP}"
+
+	run chown "${NETDATA_USER}:${admin_group}" "${NETDATA_LOG_DIR}"
+	run chown -R root "${NETDATA_PREFIX}/usr/libexec/netdata"
+	run find "${NETDATA_PREFIX}/usr/libexec/netdata" -type d -exec chmod 0755 {} \;
+	run find "${NETDATA_PREFIX}/usr/libexec/netdata" -type f -exec chmod 0644 {} \;
+	run find "${NETDATA_PREFIX}/usr/libexec/netdata" -type f -a -name \*.plugin -exec chmod 0755 {} \;
+	run find "${NETDATA_PREFIX}/usr/libexec/netdata" -type f -a -name \*.sh -exec chmod 0755 {} \;
+
+	if [ -f "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/apps.plugin" ]; then
+		setcap_ret=1
+		if ! iscontainer; then
+			if [ ! -z "${setcap}" ]; then
+				run chown root:${NETDATA_GROUP} "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/apps.plugin"
+				run chmod 0750 "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/apps.plugin"
+				run setcap cap_dac_read_search,cap_sys_ptrace+ep "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/apps.plugin"
+				setcap_ret=$?
+			fi
+
+			if [ ${setcap_ret} -eq 0 ]; then
+				# if we managed to setcap
+				# but we fail to execute apps.plugin
+				# trigger setuid to root
+				"${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/apps.plugin" -t >/dev/null 2>&1
+				setcap_ret=$?
+			fi
+		fi
+
+		if [ ${setcap_ret} -ne 0 ]; then
+			# fix apps.plugin to be setuid to root
+			run chown root:${NETDATA_GROUP} "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/apps.plugin"
+			run chmod 4750 "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/apps.plugin"
+		fi
+	fi
+
+	if [ -f "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/freeipmi.plugin" ]; then
+		run chown root:${NETDATA_GROUP} "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/freeipmi.plugin"
+		run chmod 4750 "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/freeipmi.plugin"
+	fi
+
+	if [ -f "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/cgroup-network" ]; then
+		run chown root:${NETDATA_GROUP} "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/cgroup-network"
+		run chmod 4750 "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/cgroup-network"
+	fi
+
+	if [ -f "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/cgroup-network-helper.sh" ]; then
+		run chown root "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/cgroup-network-helper.sh"
+		run chmod 0550 "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/cgroup-network-helper.sh"
+	fi
 
 else
-    # non-privileged user installation
-    run chown "${NETDATA_USER}:${NETDATA_GROUP}" "${NETDATA_LOG_DIR}"
-    run chown -R "${NETDATA_USER}:${NETDATA_GROUP}" "${NETDATA_PREFIX}/usr/libexec/netdata"
-    run find "${NETDATA_PREFIX}/usr/libexec/netdata" -type f -exec chmod 0755 {} \;
-    run find "${NETDATA_PREFIX}/usr/libexec/netdata" -type d -exec chmod 0755 {} \;
+	# non-privileged user installation
+	run chown "${NETDATA_USER}:${NETDATA_GROUP}" "${NETDATA_LOG_DIR}"
+	run chown -R "${NETDATA_USER}:${NETDATA_GROUP}" "${NETDATA_PREFIX}/usr/libexec/netdata"
+	run find "${NETDATA_PREFIX}/usr/libexec/netdata" -type f -exec chmod 0755 {} \;
+	run find "${NETDATA_PREFIX}/usr/libexec/netdata" -type d -exec chmod 0755 {} \;
 fi
 
-# --- fix #1292 bug ---
+# -----------------------------------------------------------------------------
 
-[ -d "${NETDATA_PREFIX}/usr/libexec" ]       && run chmod a+rX "${NETDATA_PREFIX}/usr/libexec"
-[ -d "${NETDATA_PREFIX}/usr/share/netdata" ] && run chmod a+rX "${NETDATA_PREFIX}/usr/share/netdata"
+install_go() {
+	# When updating this value, ensure correct checksums in packaging/go.d.checksums
+	GO_PACKAGE_VERSION="v0.0.2"
+	ARCH_MAP=(
+		'i386::386'
+		'i686::386'
+		'x86_64::amd64'
+		'aarch64::arm64'
+		'armv64::arm64'
+		'armv6l::arm'
+		'armv7l::arm'
+		'armv5tel::arm'
+	)
+
+	if [ -z "${NETDATA_DISABLE_GO+x}" ]; then
+		progress "Install go.d.plugin"
+		ARCH=$(uname -m)
+		OS=$(uname -s | tr '[:upper:]' '[:lower:]')
+
+		for index in "${ARCH_MAP[@]}" ; do
+			KEY="${index%%::*}"
+			VALUE="${index##*::}"
+			if [ "$KEY" == "$ARCH" ]; then
+				ARCH="${VALUE}"
+				break
+			fi
+		done
+		tmp=$(mktemp -d /tmp/netdata-go-XXXXXX)
+		GO_PACKAGE_BASENAME="go.d.plugin-$GO_PACKAGE_VERSION.$OS-$ARCH"
+		download "https://github.com/netdata/go.d.plugin/releases/download/$GO_PACKAGE_VERSION/$GO_PACKAGE_BASENAME" "${tmp}/$GO_PACKAGE_BASENAME"
+		download "https://github.com/netdata/go.d.plugin/releases/download/$GO_PACKAGE_VERSION/config.tar.gz" "${tmp}/config.tar.gz"
+		grep "${GO_PACKAGE_BASENAME}" "${installer_dir}/packaging/go.d.checksums" > "${tmp}/sha256sums.txt" 2>/dev/null
+		grep "config.tar.gz" "${installer_dir}/packaging/go.d.checksums" >> "${tmp}/sha256sums.txt" 2>/dev/null
+
+		# Checksum validation
+		if ! (cd "${tmp}" && sha256sum -c "sha256sums.txt"); then
+			run_failed "go.d.plugin package files checksum validation failed."
+			return 1
+		fi
+
+		# Install new files
+		run rm -rf "${NETDATA_STOCK_CONFIG_DIR}/go.d"
+		run rm -rf "${NETDATA_STOCK_CONFIG_DIR}/go.d.conf"
+		run tar -xf "${tmp}/config.tar.gz" -C "${NETDATA_STOCK_CONFIG_DIR}/"
+		run chown -R "${ROOT_USER}:${NETDATA_GROUP}" "${NETDATA_STOCK_CONFIG_DIR}"
+
+		run mv "${tmp}/$GO_PACKAGE_BASENAME" "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/go.d.plugin"
+		if [ ${UID} -eq 0 ]; then
+			run chown root:${NETDATA_GROUP} "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/go.d.plugin"
+		fi
+		run chmod 0750 "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/go.d.plugin"
+	fi
+	return 0
+}
+install_go
 
+# --- fix #1292 bug ---
 
+[ -d "${NETDATA_PREFIX}/usr/libexec" ] && run chmod a+rX "${NETDATA_PREFIX}/usr/libexec"
+[ -d "${NETDATA_PREFIX}/usr/share/netdata" ] && run chmod a+rX "${NETDATA_PREFIX}/usr/share/netdata"
 
 # -----------------------------------------------------------------------------
 progress "Install netdata at system init"
@@ -836,42 +843,38 @@ progress "Install netdata at system init"
 NETDATA_START_CMD="${NETDATA_PREFIX}/usr/sbin/netdata"
 install_netdata_service || run_failed "Cannot install netdata init service."
 
-
 # -----------------------------------------------------------------------------
 # check if we can re-start netdata
 
 started=0
-if [ ${DONOTSTART} -eq 1 ]
-    then
-    generate_netdata_conf "${NETDATA_USER}" "${NETDATA_PREFIX}/etc/netdata/netdata.conf" "http://localhost:${NETDATA_PORT}/netdata.conf"
+if [ ${DONOTSTART} -eq 1 ]; then
+	generate_netdata_conf "${NETDATA_USER}" "${NETDATA_PREFIX}/etc/netdata/netdata.conf" "http://localhost:${NETDATA_PORT}/netdata.conf"
 
 else
-    restart_netdata ${NETDATA_PREFIX}/usr/sbin/netdata "${@}"
-    if [ $? -ne 0 ]
-        then
-        echo >&2
-        echo >&2 "SORRY! FAILED TO START NETDATA!"
-        echo >&2
-        exit 1
-    fi
-
-    started=1
-    echo >&2 "OK. NetData Started!"
-    echo >&2
-
-    # -----------------------------------------------------------------------------
-    # save a config file, if it is not already there
-
-    download_netdata_conf "${NETDATA_USER}" "${NETDATA_PREFIX}/etc/netdata/netdata.conf" "http://localhost:${NETDATA_PORT}/netdata.conf"
+	restart_netdata ${NETDATA_PREFIX}/usr/sbin/netdata "${@}"
+	if [ $? -ne 0 ]; then
+		echo >&2
+		echo >&2 "SORRY! FAILED TO START NETDATA!"
+		echo >&2
+		exit 1
+	fi
+
+	started=1
+	echo >&2 "OK. NetData Started!"
+	echo >&2
+
+	# -----------------------------------------------------------------------------
+	# save a config file, if it is not already there
+
+	download_netdata_conf "${NETDATA_USER}" "${NETDATA_PREFIX}/etc/netdata/netdata.conf" "http://localhost:${NETDATA_PORT}/netdata.conf"
 fi
 
-if [ "$(uname)" = "Linux" ]
-then
-    # -------------------------------------------------------------------------
-    progress "Check KSM (kernel memory deduper)"
+if [ "$(uname)" = "Linux" ]; then
+	# -------------------------------------------------------------------------
+	progress "Check KSM (kernel memory deduper)"
 
-    ksm_is_available_but_disabled() {
-        cat <<KSM1
+	ksm_is_available_but_disabled() {
+		cat <<KSM1
 
 ${TPUT_BOLD}Memory de-duplication instructions${TPUT_RESET}
 
@@ -886,10 +889,10 @@ To enable it run:
 If you enable it, you will save 40-60% of netdata memory.
 
 KSM1
-    }
+	}
 
-    ksm_is_not_available() {
-        cat <<KSM2
+	ksm_is_not_available() {
+		cat <<KSM2
 
 ${TPUT_BOLD}Memory de-duplication not present in your kernel${TPUT_RESET}
 
@@ -901,26 +904,22 @@ To enable it, you need a kernel built with CONFIG_KSM=y
 If you can have it, you will save 40-60% of netdata memory.
 
 KSM2
-    }
-
-    if [ -f "/sys/kernel/mm/ksm/run" ]
-        then
-        if [ $(cat "/sys/kernel/mm/ksm/run") != "1" ]
-            then
-            ksm_is_available_but_disabled
-        fi
-    else
-        ksm_is_not_available
-    fi
+	}
+
+	if [ -f "/sys/kernel/mm/ksm/run" ]; then
+		if [ $(cat "/sys/kernel/mm/ksm/run") != "1" ]; then
+			ksm_is_available_but_disabled
+		fi
+	else
+		ksm_is_not_available
+	fi
 fi
 
-
 # -----------------------------------------------------------------------------
 progress "Check version.txt"
 
-if [ ! -s webserver/gui/version.txt ]
-    then
-    cat <<VERMSG
+if [ ! -s web/gui/version.txt ]; then
+	cat <<VERMSG
 
 ${TPUT_BOLD}Version update check warning${TPUT_RESET}
 
@@ -930,19 +929,17 @@ Update check on the dashboard, will not work.
 If you want to have version update check, please re-install it
 following the procedure in:
 
-https://github.com/netdata/netdata/tree/master/installer#installation
+https://docs.netdata.cloud/packaging/installer/
 
 VERMSG
 fi
 
-if [ -f "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/apps.plugin" ]
-then
-    # -----------------------------------------------------------------------------
-    progress "Check apps.plugin"
+if [ -f "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/apps.plugin" ]; then
+	# -----------------------------------------------------------------------------
+	progress "Check apps.plugin"
 
-    if [ "${UID}" -ne 0 ]
-        then
-        cat <<SETUID_WARNING
+	if [ "${UID}" -ne 0 ]; then
+		cat <<SETUID_WARNING
 
 ${TPUT_BOLD}apps.plugin needs privileges${TPUT_RESET}
 
@@ -966,122 +963,9 @@ running processes. It cannot be instructed from the netdata daemon to perform
 any task, so it is pretty safe to do this.
 
 SETUID_WARNING
-    fi
-fi
-
-# -----------------------------------------------------------------------------
-progress "Generate netdata-uninstaller.sh"
-
-cat >netdata-uninstaller.sh <<UNINSTALL
-#!/usr/bin/env bash
-
-# this script will uninstall netdata
-
-if [ "\$1" != "--force" ]
-    then
-    echo >&2 "This script will REMOVE netdata from your system."
-    echo >&2 "Run it again with --force to do it."
-    exit 1
-fi
-
-source installer/functions.sh || exit 1
-
-echo >&2 "Stopping a possibly running netdata..."
-for p in \$(pidof netdata); do run kill \$p; done
-sleep 2
-
-if [ ! -z "${NETDATA_PREFIX}" -a -d "${NETDATA_PREFIX}" ]
-    then
-    # installation prefix was given
-
-    portable_deletedir_recursively_interactively "${NETDATA_PREFIX}"
-
-else
-    # installation prefix was NOT given
-
-    if [ -f "${NETDATA_PREFIX}/usr/sbin/netdata" ]
-        then
-        echo "Deleting ${NETDATA_PREFIX}/usr/sbin/netdata ..."
-        run rm -i "${NETDATA_PREFIX}/usr/sbin/netdata"
-    fi
-
-    portable_deletedir_recursively_interactively "${NETDATA_PREFIX}/etc/netdata"
-    portable_deletedir_recursively_interactively "${NETDATA_PREFIX}/usr/share/netdata"
-    portable_deletedir_recursively_interactively "${NETDATA_PREFIX}/usr/libexec/netdata"
-    portable_deletedir_recursively_interactively "${NETDATA_PREFIX}/var/lib/netdata"
-    portable_deletedir_recursively_interactively "${NETDATA_PREFIX}/var/cache/netdata"
-    portable_deletedir_recursively_interactively "${NETDATA_PREFIX}/var/log/netdata"
-fi
-
-if [ -f /etc/logrotate.d/netdata ]
-    then
-    echo "Deleting /etc/logrotate.d/netdata ..."
-    run rm -i /etc/logrotate.d/netdata
-fi
-
-if [ -f /etc/systemd/system/netdata.service ]
-    then
-    echo "Deleting /etc/systemd/system/netdata.service ..."
-    run rm -i /etc/systemd/system/netdata.service
-fi
-
-if [ -f /lib/systemd/system/netdata.service ]
-    then
-    echo "Deleting /lib/systemd/system/netdata.service ..."
-    run rm -i /lib/systemd/system/netdata.service
-fi
-
-if [ -f /etc/init.d/netdata ]
-    then
-    echo "Deleting /etc/init.d/netdata ..."
-    run rm -i /etc/init.d/netdata
-fi
-
-if [ -f /etc/periodic/daily/netdata-updater ]
-    then
-    echo "Deleting /etc/periodic/daily/netdata-updater ..."
-    run rm -i /etc/periodic/daily/netdata-updater
-fi
-
-if [ -f /etc/cron.daily/netdata-updater ]
-    then
-    echo "Deleting /etc/cron.daily/netdata-updater ..."
-    run rm -i /etc/cron.daily/netdata-updater
-fi
-
-portable_check_user_exists netdata
-if [ \$? -eq 0 ]
-    then
-    echo
-    echo "You may also want to remove the user netdata"
-    echo "by running:"
-    echo "   userdel netdata"
-fi
-
-portable_check_group_exists netdata > /dev/null
-if [ \$? -eq 0 ]
-    then
-    echo
-    echo "You may also want to remove the group netdata"
-    echo "by running:"
-    echo "   groupdel netdata"
+	fi
 fi
 
-for g in ${NETDATA_ADDED_TO_GROUPS}
-do
-    portable_check_group_exists \$g > /dev/null
-    if [ \$? -eq 0 ]
-        then
-        echo
-        echo "You may also want to remove the netdata user from the \$g group"
-        echo "by running:"
-        echo "   gpasswd -d netdata \$g"
-    fi
-done
-
-UNINSTALL
-chmod 750 netdata-uninstaller.sh
-
 # -----------------------------------------------------------------------------
 progress "Basic netdata instructions"
 
@@ -1102,186 +986,77 @@ To start netdata run:
 
 
 END
-echo >&2 "Uninstall script generated: ${TPUT_RED}${TPUT_BOLD}./netdata-uninstaller.sh${TPUT_RESET}"
-
-if [ -d .git ]
-    then
-    cat >netdata-updater.sh.new <<REINSTALL
-#!/usr/bin/env bash
-
-force=0
-[ "\${1}" = "-f" ] && force=1
-
-export PATH="\${PATH}:${PATH}"
-export CFLAGS="${CFLAGS}"
-export NETDATA_CONFIGURE_OPTIONS="${NETDATA_CONFIGURE_OPTIONS}"
-
-# make sure we have a UID
-[ -z "\${UID}" ] && UID="\$(id -u)"
-INSTALL_UID="${UID}"
-if [ "\${INSTALL_UID}" != "\${UID}" ]
-    then
-    echo >&2 "This script should be run as user with uid \${INSTALL_UID} but it now runs with uid \${UID}"
-    exit 1
-fi
-
-# make sure we cd to the working directory
-cd "${REINSTALL_PWD}" || exit 1
 
-# make sure there is .git here
-[ \${force} -eq 0 -a ! -d .git ] && echo >&2 "No git structures found at: ${REINSTALL_PWD} (use -f for force re-install)" && exit 1
-
-# signal netdata to start saving its database
-# this is handy if your database is big
-pids=\$(pidof netdata)
-do_not_start=
-if [ ! -z "\${pids}" ]
-    then
-    kill -USR1 \${pids}
-else
-    # netdata is currently not running, so do not start it after updating
-    do_not_start="--dont-start-it"
+if [ "${AUTOUPDATE}" = "1" ]; then
+	if [ "${UID}" -ne "0" ]; then
+		echo >&2 "You need to run the installer as root for auto-updating via cron."
+	else
+		crondir=
+		[ -d "/etc/periodic/daily" ] && crondir="/etc/periodic/daily"
+		[ -d "/etc/cron.daily" ] && crondir="/etc/cron.daily"
+
+		if [ -z "${crondir}" ]; then
+			echo >&2 "Cannot figure out the cron directory to install netdata-updater"
+		else
+			if [ -f "${crondir}/netdata-updater.sh" ]; then
+				progress "Removing incorrect netdata-updater filename in cron"
+				rm -f "${crondir}/netdata-updater.sh"
+			fi
+			progress "Installing new netdata-updater in cron"
+	
+			rm ${installer_dir}/netdata-updater.sh || : #TODO(paulfantom): this workaround should be removed after v1.13.0-rc1. It just needs to be propagated
+
+			rm -f "${crondir}/netdata-updater"
+			if [ -f "${installer_dir}/packaging/installer/netdata-updater.sh" ]; then
+				sed "s|THIS_SHOULD_BE_REPLACED_BY_INSTALLER_SCRIPT|${NETDATA_USER_CONFIG_DIR}/.environment|" "${installer_dir}/packaging/installer/netdata-updater.sh" > ${crondir}/netdata-updater || exit 1
+				 #TODO(paulfantom): Following line is a workaround and should be removed after v1.13.0-rc1. It just needs time to be propagated.
+				sed "s|THIS_SHOULD_BE_REPLACED_BY_INSTALLER_SCRIPT|${NETDATA_USER_CONFIG_DIR}/.environment|" "${installer_dir}/packaging/installer/netdata-updater.sh" > ${installer_dir}/netdata-updater.sh || exit 1
+			else
+				sed "s|THIS_SHOULD_BE_REPLACED_BY_INSTALLER_SCRIPT|${NETDATA_USER_CONFIG_DIR}/.environment|" "${netdata_source_dir}/packaging/installer/netdata-updater.sh" > ${crondir}/netdata-updater || exit 1
+				 #TODO(paulfantom): Following line is a workaround and should be removed after v1.13.0-rc1. It just needs time to be propagated.
+				sed "s|THIS_SHOULD_BE_REPLACED_BY_INSTALLER_SCRIPT|${NETDATA_USER_CONFIG_DIR}/.environment|" "${netdata_source_dir}/packaging/installer/netdata-updater.sh" > ${installer_source_dir}/netdata-updater.sh || exit 1
+			fi
+
+			chmod 0755 ${crondir}/netdata-updater
+			echo >&2 "Update script is located at ${TPUT_GREEN}${TPUT_BOLD}${crondir}/netdata-updater${TPUT_RESET}"
+			echo >&2
+			echo >&2 "${TPUT_DIM}${TPUT_BOLD}netdata-updater${TPUT_RESET}${TPUT_DIM} works from cron. It will trigger an email from cron"
+			echo >&2 "only if it fails (it should not print anything when it can update netdata).${TPUT_RESET}"
+		fi
+	fi
 fi
 
-tmp=
-if [ -t 2 ]
-    then
-    # we are running on a terminal
-    # open fd 3 and send it to stderr
-    exec 3>&2
-else
-    # we are headless
-    # create a temporary file for the log
-    tmp=\$(mktemp /tmp/netdata-updater.log.XXXXXX)
-    # open fd 3 and send it to tmp
-    exec 3>\${tmp}
-fi
-
-info() {
-    echo >&3 "\$(date) : INFO: " "\${@}"
-}
-
-emptyline() {
-    echo >&3
-}
-
-error() {
-    echo >&3 "\$(date) : ERROR: " "\${@}"
-}
-
-# this is what we will do if it fails (head-less only)
-failed() {
-    error "FAILED TO UPDATE NETDATA : \${1}"
-
-    if [ ! -z "\${tmp}" ]
-    then
-        cat >&2 "\${tmp}"
-        rm "\${tmp}"
-    fi
-    exit 1
-}
-
-get_latest_commit_id() {
-	git rev-parse HEAD 2>&3
-}
-
-update() {
-    [ -z "\${tmp}" ] && info "Running on a terminal - (this script also supports running headless from crontab)"
-
-    emptyline
-
-    if [ -d .git ]
-        then
-        info "Updating netdata source from github..."
-
-        last_commit="\$(get_latest_commit_id)"
-        [ \${force} -eq 0 -a -z "\${last_commit}" ] && failed "CANNOT GET LAST COMMIT ID (use -f for force re-install)"
-
-        git pull >&3 2>&3 || failed "CANNOT FETCH LATEST SOURCE (use -f for force re-install)"
-
-        new_commit="\$(get_latest_commit_id)"
-        if [ \${force} -eq 0 ]
-            then
-            [ -z "\${new_commit}" ] && failed "CANNOT GET NEW LAST COMMIT ID (use -f for force re-install)"
-            [ "\${new_commit}" = "\${last_commit}" ] && info "Nothing to be done! (use -f to force re-install)" && exit 0
-        fi
-    elif [ \${force} -eq 0 ]
-        then
-        failed "CANNOT FIND GIT STRUCTURES IN \$(pwd) (use -f for force re-install)"
-    fi
-
-    emptyline
-    info "Re-installing netdata..."
-    ${REINSTALL_COMMAND} --dont-wait \${do_not_start} >&3 2>&3 || failed "FAILED TO COMPILE/INSTALL NETDATA"
-
-    [ ! -z "\${tmp}" ] && rm "\${tmp}" && tmp=
-    return 0
-}
+# Save environment variables
+cat <<EOF > ${NETDATA_USER_CONFIG_DIR}/.environment
+# Created by installer
+PATH="${PATH}"
+CFLAGS="${CFLAGS}"
+NETDATA_PREFIX="${NETDATA_PREFIX}"
+NETDATA_CONFIGURE_OPTIONS="${NETDATA_CONFIGURE_OPTIONS}"
+NETDATA_ADDED_TO_GROUPS="${NETDATA_ADDED_TO_GROUPS}"
+INSTALL_UID="${UID}"
+REINSTALL_COMMAND="${REINSTALL_COMMAND}"
+# next 3 values are meant to be populated by autoupdater (if enabled)
+NETDATA_TARBALL_URL="https://storage.googleapis.com/netdata-nightlies/netdata-latest.tar.gz"
+NETDATA_TARBALL_CHECKSUM_URL="https://storage.googleapis.com/netdata-nightlies/sha256sums.txt"
+NETDATA_TARBALL_CHECKSUM="new_installation"
+EOF
 
-# the installer updates this script - so we run and exit in a single line
-update && exit 0
-###############################################################################
-###############################################################################
-REINSTALL
-    chmod 755 netdata-updater.sh.new
-    mv -f netdata-updater.sh.new netdata-updater.sh
-    echo >&2 "Update script generated   : ${TPUT_GREEN}${TPUT_BOLD}./netdata-updater.sh${TPUT_RESET}"
-    echo >&2
-    echo >&2 "${TPUT_DIM}${TPUT_BOLD}netdata-updater.sh${TPUT_RESET}${TPUT_DIM} can work from cron. It will trigger an email from cron"
-    echo >&2 "only if it fails (it does not print anything when it can update netdata).${TPUT_RESET}"
-    if [ "${UID}" -eq "0" ]
-    then
-        crondir=
-        [ -d "/etc/periodic/daily" ] && crondir="/etc/periodic/daily"
-        [ -d "/etc/cron.daily" ] && crondir="/etc/cron.daily"
-
-        if [ ! -z "${crondir}" ]
-        then
-            if [ -f "${crondir}/netdata-updater.sh" -a ! -f "${crondir}/netdata-updater" ]
-            then
-                # remove .sh from the filename under cron
-                progress "Fixing netdata-updater filename at cron"
-                mv -f "${crondir}/netdata-updater.sh" "${crondir}/netdata-updater"
-            fi
-
-            if [ ! -f "${crondir}/netdata-updater" ]
-            then
-                if [ "${AUTOUPDATE}" = "1" ]
-                then
-                    progress "Installing netdata-updater at cron"
-                    run ln -fs "${PWD}/netdata-updater.sh" "${crondir}/netdata-updater"
-                else
-                    echo >&2 "${TPUT_DIM}Run this to automatically check and install netdata updates once per day:${TPUT_RESET}"
-                    echo >&2
-                    echo >&2 "${TPUT_YELLOW}${TPUT_BOLD}sudo ln -fs ${PWD}/netdata-updater.sh ${crondir}/netdata-updater${TPUT_RESET}"
-                fi
-            else
-                progress "Refreshing netdata-updater at cron"
-                run rm "${crondir}/netdata-updater"
-                run ln -fs "${PWD}/netdata-updater.sh" "${crondir}/netdata-updater"
-            fi
-        else
-            [ "${AUTOUPDATE}" = "1" ] && echo >&2 "Cannot figure out the cron directory to install netdata-updater."
-        fi
-    else
-        [ "${AUTOUPDATE}" = "1" ] && echo >&2 "You need to run the installer as root for auto-updating via cron."
-    fi
-else
-    [ -f "netdata-updater.sh" ] && rm "netdata-updater.sh"
-    [ "${AUTOUPDATE}" = "1" ] && echo >&2 "Your installation method does not support daily auto-updating via cron."
+# Opt-out from telemetry program
+if [ -n "${NETDATA_DISABLE_TELEMETRY+x}" ]; then
+	touch ${NETDATA_USER_CONFIG_DIR}/.opt-out-from-anonymous-statistics
 fi
 
 # -----------------------------------------------------------------------------
 echo >&2
 progress "We are done!"
 
-if [ ${started} -eq 1 ]
-    then
-    netdata_banner "is installed and running now!"
+if [ ${started} -eq 1 ]; then
+	netdata_banner "is installed and running now!"
 else
-    netdata_banner "is installed now!"
+	netdata_banner "is installed now!"
 fi
 
 echo >&2 "  enjoy real-time performance and health monitoring..."
-echo >&2 
+echo >&2
 exit 0