Adding upstream version 1.44.3.upstream/1.44.3upstream

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

1 files changed, 1080 insertions, 0 deletions

diff --git a/packaging/installer/functions.sh b/packaging/installer/functions.sh
new file mode 100644
index 00000000..dd3158d6
--- /dev/null
+++ b/packaging/installer/functions.sh
@@ -0,0 +1,1080 @@
+#!/bin/sh
+
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+# next unused error code: L0003
+
+# make sure we have a UID
+[ -z "${UID}" ] && UID="$(id -u)"
+# -----------------------------------------------------------------------------
+
+setup_terminal() {
+  TPUT_RESET=""
+  TPUT_BLACK=""
+  TPUT_RED=""
+  TPUT_GREEN=""
+  TPUT_YELLOW=""
+  TPUT_BLUE=""
+  TPUT_PURPLE=""
+  TPUT_CYAN=""
+  TPUT_WHITE=""
+  TPUT_BGBLACK=""
+  TPUT_BGRED=""
+  TPUT_BGGREEN=""
+  TPUT_BGYELLOW=""
+  TPUT_BGBLUE=""
+  TPUT_BGPURPLE=""
+  TPUT_BGCYAN=""
+  TPUT_BGWHITE=""
+  TPUT_BOLD=""
+  TPUT_DIM=""
+  TPUT_UNDERLINED=""
+  TPUT_BLINK=""
+  TPUT_INVERTED=""
+  TPUT_STANDOUT=""
+  TPUT_BELL=""
+  TPUT_CLEAR=""
+
+  # Is stderr on the terminal? If not, then fail
+  test -t 2 || return 1
+
+  if command -v tput 1> /dev/null 2>&1; then
+    if [ $(($(tput colors 2> /dev/null))) -ge 8 ]; then
+      # Enable colors
+      TPUT_RESET="$(tput sgr 0)"
+      # shellcheck disable=SC2034
+      TPUT_BLACK="$(tput setaf 0)"
+      # shellcheck disable=SC2034
+      TPUT_RED="$(tput setaf 1)"
+      TPUT_GREEN="$(tput setaf 2)"
+      # shellcheck disable=SC2034
+      TPUT_YELLOW="$(tput setaf 3)"
+      # shellcheck disable=SC2034
+      TPUT_BLUE="$(tput setaf 4)"
+      # shellcheck disable=SC2034
+      TPUT_PURPLE="$(tput setaf 5)"
+      # shellcheck disable=SC2034
+      TPUT_CYAN="$(tput setaf 6)"
+      TPUT_WHITE="$(tput setaf 7)"
+      # shellcheck disable=SC2034
+      TPUT_BGBLACK="$(tput setab 0)"
+      TPUT_BGRED="$(tput setab 1)"
+      TPUT_BGGREEN="$(tput setab 2)"
+      # shellcheck disable=SC2034
+      TPUT_BGYELLOW="$(tput setab 3)"
+      # shellcheck disable=SC2034
+      TPUT_BGBLUE="$(tput setab 4)"
+      # shellcheck disable=SC2034
+      TPUT_BGPURPLE="$(tput setab 5)"
+      # shellcheck disable=SC2034
+      TPUT_BGCYAN="$(tput setab 6)"
+      # shellcheck disable=SC2034
+      TPUT_BGWHITE="$(tput setab 7)"
+      TPUT_BOLD="$(tput bold)"
+      TPUT_DIM="$(tput dim)"
+      # shellcheck disable=SC2034
+      TPUT_UNDERLINED="$(tput smul)"
+      # shellcheck disable=SC2034
+      TPUT_BLINK="$(tput blink)"
+      # shellcheck disable=SC2034
+      TPUT_INVERTED="$(tput rev)"
+      # shellcheck disable=SC2034
+      TPUT_STANDOUT="$(tput smso)"
+      # shellcheck disable=SC2034
+      TPUT_BELL="$(tput bel)"
+      # shellcheck disable=SC2034
+      TPUT_CLEAR="$(tput clear)"
+    fi
+  fi
+
+  return 0
+}
+setup_terminal || echo > /dev/null
+
+progress() {
+  echo >&2 " --- ${TPUT_DIM}${TPUT_BOLD}${*}${TPUT_RESET} --- "
+}
+
+check_for_curl() {
+  if [ -z "${curl}" ]; then
+    curl="$(PATH="${PATH}:/opt/netdata/bin" command -v curl 2>/dev/null && true)"
+  fi
+}
+
+get() {
+  url="${1}"
+
+  check_for_curl
+
+  if [ -n "${curl}" ]; then
+    "${curl}" -q -o - -sSL --connect-timeout 10 --retry 3 "${url}"
+  elif command -v wget > /dev/null 2>&1; then
+    wget -T 15 -O - "${url}"
+  else
+    fatal "I need curl or wget to proceed, but neither is available on this system." "L0002"
+  fi
+}
+
+download_file() {
+  url="${1}"
+  dest="${2}"
+  name="${3}"
+  opt="${4}"
+
+  check_for_curl
+
+  if [ -n "${curl}" ]; then
+    run "${curl}" -q -sSL --connect-timeout 10 --retry 3 --output "${dest}" "${url}"
+  elif command -v wget > /dev/null 2>&1; then
+    run wget -T 15 -O "${dest}" "${url}"
+  else
+    echo >&2
+    echo >&2 "Downloading ${name} from '${url}' failed because of missing mandatory packages."
+    if [ -n "$opt" ]; then
+      echo >&2 "Either add packages or disable it by issuing '--disable-${opt}' in the installer"
+    fi
+    echo >&2
+
+    run_failed "I need curl or wget to proceed, but neither is available on this system."
+  fi
+}
+
+# -----------------------------------------------------------------------------
+# external component handling
+
+fetch_and_verify() {
+  component="${1}"
+  url="${2}"
+  base_name="${3}"
+  tmp="${4}"
+  override="${5}"
+
+  if [ -z "${override}" ]; then
+    download_file "${url}" "${tmp}/${base_name}" "${component}"
+  else
+    progress "Using provided ${component} archive ${override}"
+    run cp "${override}" "${tmp}/${base_name}"
+  fi
+
+  if [ ! -f "${tmp}/${base_name}" ] || [ ! -s "${tmp}/${base_name}" ]; then
+    run_failed "Unable to find usable archive for ${component}"
+    return 1
+  fi
+
+  grep "${base_name}\$" "${INSTALLER_DIR}/packaging/${component}.checksums" > "${tmp}/sha256sums.txt" 2> /dev/null
+
+  # Checksum validation
+  if ! (cd "${tmp}" && safe_sha256sum -c "sha256sums.txt"); then
+    run_failed "${component} files checksum validation failed."
+    return 1
+  fi
+}
+
+# -----------------------------------------------------------------------------
+
+netdata_banner() {
+    l1="  ^" \
+    l2="  |.-.   .-.   .-.   .-.   .-.   .-.   .-.   .-.   .-.   .-.   .-.   .-.   .-" \
+    l4="  +----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+--->" \
+    space="  "
+    l3f="  |   '-'   '-'   '-'   '-'   '-'"
+    l3e="               '-'   '-'   '-'   '-'   '-'   "
+
+    netdata="netdata"
+    chartcolor="${TPUT_DIM}"
+
+  echo >&2
+  echo >&2 "${chartcolor}${l1}${TPUT_RESET}"
+  echo >&2 "${chartcolor}${l2%-.   .-.   .-.   .-.   .-.   .-.   .-.   .-}${space}${TPUT_RESET}${TPUT_BOLD}${TPUT_GREEN}${netdata}${TPUT_RESET}${chartcolor}${l2#  |.-.   .-.   .-.   .-.   .-.   .-.   .-. }${TPUT_RESET}"
+  echo >&2 "${chartcolor}${l3f}${l3e}${TPUT_RESET}"
+  echo >&2 "${chartcolor}${l4}${TPUT_RESET}"
+  echo >&2
+}
+
+# -----------------------------------------------------------------------------
+# portable service command
+
+service_cmd="$(command -v service 2> /dev/null || true)"
+rcservice_cmd="$(command -v rc-service 2> /dev/null || true)"
+systemctl_cmd="$(command -v systemctl 2> /dev/null || true)"
+service() {
+
+  cmd="${1}"
+  action="${2}"
+
+  if [ -n "${systemctl_cmd}" ]; then
+    run "${systemctl_cmd}" "${action}" "${cmd}"
+    return $?
+  elif [ -n "${service_cmd}" ]; then
+    run "${service_cmd}" "${cmd}" "${action}"
+    return $?
+  elif [ -n "${rcservice_cmd}" ]; then
+    run "${rcservice_cmd}" "${cmd}" "${action}"
+    return $?
+  fi
+  return 1
+}
+
+# -----------------------------------------------------------------------------
+# portable pidof
+
+safe_pidof() {
+  pidof_cmd="$(command -v pidof 2> /dev/null)"
+  if [ -n "${pidof_cmd}" ]; then
+    ${pidof_cmd} "${@}"
+    return $?
+  else
+    ps -acxo pid,comm |
+      sed "s/^ *//g" |
+      grep netdata |
+      cut -d ' ' -f 1
+    return $?
+  fi
+}
+
+# -----------------------------------------------------------------------------
+find_processors() {
+  # Most UNIX systems have `nproc` as part of their userland (including Linux and BSD)
+  if command -v nproc > /dev/null; then
+    nproc && return
+  fi
+
+  # macOS has no nproc but it may have gnproc installed from Homebrew or from Macports.
+  if command -v gnproc > /dev/null; then
+    gnproc && return
+  fi
+
+  if [ -f "/proc/cpuinfo" ]; then
+    # linux
+    cpus=$(grep -c ^processor /proc/cpuinfo)
+  else
+  # freebsd
+    cpus=$(sysctl hw.ncpu 2> /dev/null | grep ^hw.ncpu | cut -d ' ' -f 2)
+  fi
+  if [ -z "${cpus}" ] || [ $((cpus)) -lt 1 ]; then
+    echo 1
+  else
+    echo "${cpus}"
+  fi
+}
+
+# -----------------------------------------------------------------------------
+exit_reason() {
+  if [ -n "${NETDATA_SAVE_WARNINGS}" ]; then
+    EXIT_REASON="${1}"
+    EXIT_CODE="${2}"
+    if [ -n "${NETDATA_PROPAGATE_WARNINGS}" ]; then
+      if [ -n "${NETDATA_SCRIPT_STATUS_PATH}" ]; then
+        {
+          echo "EXIT_REASON=\"${EXIT_REASON}\""
+          echo "EXIT_CODE=\"${EXIT_CODE}\""
+          echo "NETDATA_WARNINGS=\"${NETDATA_WARNINGS}${SAVED_WARNINGS}\""
+        } >> "${NETDATA_SCRIPT_STATUS_PATH}"
+      else
+        export EXIT_REASON
+        export EXIT_CODE
+        export NETDATA_WARNINGS="${NETDATA_WARNINGS}${SAVED_WARNINGS}"
+      fi
+    fi
+  fi
+}
+
+fatal() {
+  printf >&2 "%s ABORTED %s %s \n\n" "${TPUT_BGRED}${TPUT_WHITE}${TPUT_BOLD}" "${TPUT_RESET}" "${1}"
+  if [ -n "${NETDATA_SAVE_WARNINGS}" ]; then
+    SAVED_WARNINGS="${SAVED_WARNINGS}\n  - ${1}"
+  fi
+  exit_reason "${1}" "${2}"
+  exit 1
+}
+
+warning() {
+  printf >&2 "%s WARNING %s %s\n\n" "${TPUT_BGYELLOW}${TPUT_BLACK}${TPUT_BOLD}" "${TPUT_RESET}" "${1}"
+  if [ -n "${NETDATA_SAVE_WARNINGS}" ]; then
+    SAVED_WARNINGS="${SAVED_WARNINGS}\n  - ${1}"
+  fi
+}
+
+run_ok() {
+  printf >&2 "%s OK %s %s\n\n" "${TPUT_BGGREEN}${TPUT_WHITE}${TPUT_BOLD}" "${TPUT_RESET}" "${1:-''}"
+}
+
+run_failed() {
+  printf >&2 "%s FAILED %s %s\n\n" "${TPUT_BGRED}${TPUT_WHITE}${TPUT_BOLD}" "${TPUT_RESET}" "${1:-''}"
+  if [ -n "${NETDATA_SAVE_WARNINGS}" ] && [ -n "${1:-''}" ]; then
+    SAVED_WARNINGS="${SAVED_WARNINGS}\n  - ${1}"
+  fi
+}
+
+ESCAPED_PRINT_METHOD=
+if printf "%s " test > /dev/null 2>&1; then
+  ESCAPED_PRINT_METHOD="printfq"
+fi
+escaped_print() {
+  if [ "${ESCAPED_PRINT_METHOD}" = "printfq" ]; then
+    printf "%s " "${@}"
+  else
+    printf "%s" "${*}"
+  fi
+  return 0
+}
+
+run_logfile="/dev/null"
+run() {
+  local_user="${USER--}"
+  local_dir="${PWD}"
+  if [ "${UID}" = "0" ]; then
+    info="[root ${local_dir}]# "
+    info_console="[${TPUT_DIM}${local_dir}${TPUT_RESET}]# "
+  else
+    info="[${local_user} ${local_dir}]$ "
+    info_console="[${TPUT_DIM}${local_dir}${TPUT_RESET}]$ "
+  fi
+
+  {
+    printf "%s" "${info}"
+    escaped_print "${@}"
+    printf "%s" " ... "
+  } >> "${run_logfile}"
+
+  printf >&2 "%s" "${info_console}${TPUT_BOLD}${TPUT_YELLOW}"
+  escaped_print >&2 "${@}"
+  printf >&2 "%s\n" "${TPUT_RESET}"
+
+  "${@}"
+
+  ret=$?
+  if [ ${ret} -ne 0 ]; then
+    run_failed
+    printf >> "${run_logfile}" "FAILED with exit code %s\n" "${ret}"
+    if [ -n "${NETDATA_SAVE_WARNINGS}" ]; then
+      SAVED_WARNINGS="${SAVED_WARNINGS}\n  - Command '${*}' failed with exit code ${ret}."
+    fi
+  else
+    run_ok
+    printf >> "${run_logfile}" "OK\n"
+  fi
+
+  return ${ret}
+}
+
+iscontainer() {
+  # man systemd-detect-virt
+  cmd=$(command -v systemd-detect-virt 2> /dev/null)
+  if [ -n "${cmd}" ] && [ -x "${cmd}" ]; then
+    "${cmd}" --container > /dev/null 2>&1 && return 0
+  fi
+
+  # /proc/1/sched exposes the host's pid of our init !
+  # http://stackoverflow.com/a/37016302
+  pid=$(head -n 1 /proc/1/sched 2> /dev/null | {
+    # shellcheck disable=SC2034
+    IFS='(),#:' read -r name pid th threads
+    echo "$pid"
+  })
+  if [ -n "${pid}" ]; then
+    pid=$((pid + 0))
+    [ ${pid} -gt 1 ] && return 0
+  fi
+
+  # lxc sets environment variable 'container'
+  # shellcheck disable=SC2154
+  [ -n "${container}" ] && return 0
+
+  # docker creates /.dockerenv
+  # http://stackoverflow.com/a/25518345
+  [ -f "/.dockerenv" ] && return 0
+
+  # ubuntu and debian supply /bin/running-in-container
+  # https://www.apt-browse.org/browse/ubuntu/trusty/main/i386/upstart/1.12.1-0ubuntu4/file/bin/running-in-container
+  if [ -x "/bin/running-in-container" ]; then
+    "/bin/running-in-container" > /dev/null 2>&1 && return 0
+  fi
+
+  return 1
+}
+
+get_os_key() {
+  if [ -f /etc/os-release ]; then
+    # shellcheck disable=SC1091
+    . /etc/os-release || return 1
+    echo "${ID}-${VERSION_ID}"
+
+  elif [ -f /etc/redhat-release ]; then
+    cat /etc/redhat-release
+  else
+    echo "unknown"
+  fi
+}
+
+get_group(){
+  if command -v getent > /dev/null 2>&1; then
+    getent group "${1:-""}"
+  else
+    grep "^${1}:" /etc/group
+  fi
+}
+
+issystemd() {
+  pids=''
+  p=''
+  myns=''
+  ns=''
+  systemctl=''
+
+  # if the directory /lib/systemd/system OR /usr/lib/systemd/system (SLES 12.x) does not exit, it is not systemd
+  if [ ! -d /lib/systemd/system ] && [ ! -d /usr/lib/systemd/system ]; then
+    return 1
+  fi
+
+  # if there is no systemctl command, it is not systemd
+  systemctl=$(command -v systemctl 2> /dev/null)
+  if [ -z "${systemctl}" ] || [ ! -x "${systemctl}" ]; then
+    return 1
+  fi
+
+  # if pid 1 is systemd, it is systemd
+  [ "$(basename "$(readlink /proc/1/exe)" 2> /dev/null)" = "systemd" ] && return 0
+
+  # if systemd is not running, it is not systemd
+  pids=$(safe_pidof systemd 2> /dev/null)
+  [ -z "${pids}" ] && return 1
+
+  # check if the running systemd processes are not in our namespace
+  myns="$(readlink /proc/self/ns/pid 2> /dev/null)"
+  for p in ${pids}; do
+    ns="$(readlink "/proc/${p}/ns/pid" 2> /dev/null)"
+
+    # if pid of systemd is in our namespace, it is systemd
+    [ -n "${myns}" ] && [ "${myns}" = "${ns}" ] && return 0
+  done
+
+  # else, it is not systemd
+  return 1
+}
+
+get_systemd_service_dir() {
+  if [ -w "/lib/systemd/system" ]; then
+    echo "/lib/systemd/system"
+  elif [ -w "/usr/lib/systemd/system" ]; then
+    echo "/usr/lib/systemd/system"
+  elif [ -w "/etc/systemd/system" ]; then
+    echo "/etc/systemd/system"
+  fi
+}
+
+install_non_systemd_init() {
+  [ "${UID}" != 0 ] && return 1
+  key="$(get_os_key)"
+
+  if [ -d /etc/init.d ] && [ ! -f /etc/init.d/netdata ]; then
+    if expr "${key}" : "^(gentoo|alpine).*"; then
+      echo >&2 "Installing OpenRC init file..."
+      run cp system/openrc/init.d/netdata /etc/init.d/netdata &&
+        run chmod 755 /etc/init.d/netdata &&
+        run rc-update add netdata default &&
+        return 0
+
+    elif expr "${key}" : "^devuan*" || [ "${key}" = "debian-7" ] || [ "${key}" = "ubuntu-12.04" ] || [ "${key}" = "ubuntu-14.04" ]; then
+      echo >&2 "Installing LSB init file..."
+      run cp system/lsb/init.d/netdata /etc/init.d/netdata &&
+        run chmod 755 /etc/init.d/netdata &&
+        run update-rc.d netdata defaults &&
+        run update-rc.d netdata enable &&
+        return 0
+    elif expr "${key}" : "^(amzn-201[5678]|ol|CentOS release 6|Red Hat Enterprise Linux Server release 6|Scientific Linux CERN SLC release 6|CloudLinux Server release 6).*"; then
+      echo >&2 "Installing init.d file..."
+      run cp system/initd/init.d/netdata /etc/init.d/netdata &&
+        run chmod 755 /etc/init.d/netdata &&
+        run chkconfig netdata on &&
+        return 0
+    else
+      warning "Could not determine what type of init script to install on this system."
+      return 1
+    fi
+  elif [ -f /etc/init.d/netdata ]; then
+    echo >&2 "file '/etc/init.d/netdata' already exists."
+    return 0
+  else
+    warning "Could not determine what type of init script to install on this system."
+  fi
+
+  return 1
+}
+
+run_install_service_script() {
+  if [ -z "${tmpdir}" ]; then
+    tmpdir="${TMPDIR:-/tmp}"
+  fi
+
+  # shellcheck disable=SC2154
+  save_path="${tmpdir}/netdata-service-cmds"
+  # shellcheck disable=SC2068
+  "${NETDATA_PREFIX}/usr/libexec/netdata/install-service.sh" --save-cmds "${save_path}" ${@}
+
+  case $? in
+    0)
+      if [ -r "${save_path}" ]; then
+        # shellcheck disable=SC1090
+        . "${save_path}"
+      fi
+
+      if [ -z "${NETDATA_INSTALLER_START_CMD}" ]; then
+        if [ -n "${NETDATA_START_CMD}" ]; then
+          NETDATA_INSTALLER_START_CMD="${NETDATA_START_CMD}"
+        else
+          NETDATA_INSTALLER_START_CMD="netdata"
+        fi
+      fi
+      ;;
+    1)
+      if [ -z "${NETDATA_SERVICE_WARNED_1}" ]; then
+        warning "Intenral error encountered while attempting to install or manage Netdata as a system service. This is probably a bug."
+        NETDATA_SERVICE_WARNED_1=1
+      fi
+      ;;
+    2)
+      if [ -z "${NETDATA_SERVICE_WARNED_2}" ]; then
+        warning "Failed to detect system service manager type. Cannot cleanly install or manage Netdata as a system service. If you are running this script in a container, this is expected and can safely be ignored."
+        NETDATA_SERVICE_WARNED_2=1
+      fi
+      ;;
+    3)
+      if [ -z "${NETDATA_SERVICE_WARNED_3}" ]; then
+        warning "Detected an unsupported system service manager. Manual setup will be required to manage Netdata as a system service."
+        NETDATA_SERVICE_WARNED_3=1
+      fi
+      ;;
+    4)
+      if [ -z "${NETDATA_SERVICE_WARNED_4}" ]; then
+        warning "Detected a supported system service manager, but failed to install Netdata as a system service. Usually this is a result of incorrect permissions. Manually running ${NETDATA_PREFIX}/usr/libexec/netdata/install-service.sh may provide more information about the exact issue."
+        NETDATA_SERVICE_WARNED_4=1
+      fi
+      ;;
+    5)
+      if [ -z "${NETDATA_SERVICE_WARNED_5}" ]; then
+        warning "We do not support managing Netdata as a system service on this platform. Manual setup will be required."
+        NETDATA_SERVICE_WARNED_5=1
+      fi
+      ;;
+  esac
+}
+
+install_netdata_service() {
+  if [ "${UID}" -eq 0 ]; then
+    if [ -x "${NETDATA_PREFIX}/usr/libexec/netdata/install-service.sh" ]; then
+      run_install_service_script && return 0
+    else
+      # This is used by netdata-installer.sh
+      # shellcheck disable=SC2034
+      NETDATA_STOP_CMD="netdatacli shutdown-agent"
+
+      NETDATA_START_CMD="netdata"
+      NETDATA_INSTALLER_START_CMD=""
+
+      uname="$(uname 2> /dev/null)"
+
+      if [ "${uname}" = "Darwin" ]; then
+        if [ -f "/Library/LaunchDaemons/com.github.netdata.plist" ]; then
+          echo >&2 "file '/Library/LaunchDaemons/com.github.netdata.plist' already exists."
+          return 0
+        else
+          echo >&2 "Installing MacOS X plist file..."
+          # This is used by netdata-installer.sh
+          # shellcheck disable=SC2034
+          run cp system/launchd/netdata.plist /Library/LaunchDaemons/com.github.netdata.plist &&
+            run launchctl load /Library/LaunchDaemons/com.github.netdata.plist &&
+            NETDATA_START_CMD="launchctl start com.github.netdata" &&
+            NETDATA_STOP_CMD="launchctl stop com.github.netdata"
+          return 0
+        fi
+
+      elif [ "${uname}" = "FreeBSD" ]; then
+        # This is used by netdata-installer.sh
+        # shellcheck disable=SC2034
+        run cp system/freebsd/rc.d/netdata /etc/rc.d/netdata && NETDATA_START_CMD="service netdata start" &&
+          NETDATA_STOP_CMD="service netdata stop" &&
+          NETDATA_INSTALLER_START_CMD="service netdata onestart" &&
+          myret=$?
+
+        echo >&2 "Note: To explicitly enable netdata automatic start, set 'netdata_enable' to 'YES' in /etc/rc.conf"
+        echo >&2 ""
+
+        return "${myret}"
+
+      elif issystemd; then
+        # systemd is running on this system
+        NETDATA_START_CMD="systemctl start netdata"
+        # This is used by netdata-installer.sh
+        # shellcheck disable=SC2034
+        NETDATA_STOP_CMD="systemctl stop netdata"
+        NETDATA_INSTALLER_START_CMD="${NETDATA_START_CMD}"
+
+        SYSTEMD_DIRECTORY="$(get_systemd_service_dir)"
+
+        if [ "${SYSTEMD_DIRECTORY}x" != "x" ]; then
+          ENABLE_NETDATA_IF_PREVIOUSLY_ENABLED="run systemctl enable netdata"
+          IS_NETDATA_ENABLED="$(systemctl is-enabled netdata 2> /dev/null || echo "Netdata not there")"
+          if [ "${IS_NETDATA_ENABLED}" = "disabled" ]; then
+            echo >&2 "Netdata was there and disabled, make sure we don't re-enable it ourselves"
+            ENABLE_NETDATA_IF_PREVIOUSLY_ENABLED="true"
+          fi
+
+          echo >&2 "Installing systemd service..."
+          run cp system/systemd/netdata.service "${SYSTEMD_DIRECTORY}/netdata.service" &&
+            run systemctl daemon-reload &&
+            ${ENABLE_NETDATA_IF_PREVIOUSLY_ENABLED} &&
+            return 0
+        else
+          warning "Could not find a systemd service directory, unable to install Netdata systemd service."
+        fi
+      else
+        install_non_systemd_init
+        ret=$?
+
+        if [ ${ret} -eq 0 ]; then
+          if [ -n "${service_cmd}" ]; then
+            NETDATA_START_CMD="service netdata start"
+            # This is used by netdata-installer.sh
+            # shellcheck disable=SC2034
+            NETDATA_STOP_CMD="service netdata stop"
+          elif [ -n "${rcservice_cmd}" ]; then
+            NETDATA_START_CMD="rc-service netdata start"
+            # This is used by netdata-installer.sh
+            # shellcheck disable=SC2034
+            NETDATA_STOP_CMD="rc-service netdata stop"
+          fi
+          NETDATA_INSTALLER_START_CMD="${NETDATA_START_CMD}"
+        fi
+
+        return ${ret}
+      fi
+    fi
+  fi
+
+  return 1
+}
+
+# -----------------------------------------------------------------------------
+# stop netdata
+
+pidisnetdata() {
+  if [ -d /proc/self ]; then
+    if [ -z "$1" ] || [ ! -f "/proc/$1/stat" ]; then
+      return 1
+    fi
+    [ "$(cut -d '(' -f 2 "/proc/$1/stat" | cut -d ')' -f 1)" = "netdata" ] && return 0
+    return 1
+  fi
+  return 0
+}
+
+stop_netdata_on_pid() {
+  pid="${1}"
+  ret=0
+  count=0
+
+  pidisnetdata "${pid}" || return 0
+
+  printf >&2 "Stopping netdata on pid %s ..." "${pid}"
+  while [ -n "${pid}" ] && [ ${ret} -eq 0 ]; do
+    if [ ${count} -gt 24 ]; then
+      warning "Cannot stop netdata agent with PID ${pid}."
+      return 1
+    fi
+
+    count=$((count + 1))
+
+    pidisnetdata "${pid}" || ret=1
+    if [ ${ret} -eq 1 ]; then
+      break
+    fi
+
+    if [ ${count} -lt 12 ]; then
+      run kill "${pid}" 2> /dev/null
+      ret=$?
+    else
+      run kill -9 "${pid}" 2> /dev/null
+      ret=$?
+    fi
+
+    test ${ret} -eq 0 && printf >&2 "." && sleep 5
+
+  done
+
+  echo >&2
+  if [ ${ret} -eq 0 ]; then
+    warning "Failed to stop netdata agent process with PID ${pid}."
+    return 1
+  fi
+
+  echo >&2 "netdata on pid ${pid} stopped."
+  return 0
+}
+
+netdata_pids() {
+  myns="$(readlink /proc/self/ns/pid 2> /dev/null)"
+
+  for p in \
+    $(cat /var/run/netdata.pid 2> /dev/null) \
+    $(cat /var/run/netdata/netdata.pid 2> /dev/null) \
+    $(safe_pidof netdata 2> /dev/null); do
+    ns="$(readlink "/proc/${p}/ns/pid" 2> /dev/null)"
+
+    if [ -z "${myns}" ] || [ -z "${ns}" ] || [ "${myns}" = "${ns}" ]; then
+      pidisnetdata "${p}" && echo "${p}"
+    fi
+  done
+}
+
+stop_all_netdata() {
+  stop_success=0
+
+  if [ -x "${NETDATA_PREFIX}/usr/libexec/netdata/install-service.sh" ]; then
+    run_install_service_script --cmds-only
+  fi
+
+  if [ "${UID}" -eq 0 ]; then
+
+    uname="$(uname 2>/dev/null)"
+
+    # Any of these may fail, but we need to not bail if they do.
+    if [ -n "${NETDATA_STOP_CMD}" ]; then
+      if ${NETDATA_STOP_CMD}; then
+        stop_success=1
+        sleep 5
+      fi
+    elif issystemd; then
+      if systemctl stop netdata; then
+        stop_success=1
+        sleep 5
+      fi
+    elif [ "${uname}" = "Darwin" ]; then
+      if launchctl stop netdata; then
+        stop_success=1
+        sleep 5
+      fi
+    elif [ "${uname}" = "FreeBSD" ]; then
+      if /etc/rc.d/netdata stop; then
+        stop_success=1
+        sleep 5
+      fi
+    else
+      if service netdata stop; then
+        stop_success=1
+        sleep 5
+      fi
+    fi
+  fi
+
+  if [ "$stop_success" = "0" ]; then
+    if [ -n "$(netdata_pids)" ] && [ -n "$(command -v netdatacli)" ]; then
+      netdatacli shutdown-agent
+      sleep 20
+    fi
+
+    for p in $(netdata_pids); do
+      # shellcheck disable=SC2086
+      stop_netdata_on_pid ${p}
+    done
+  fi
+}
+
+# -----------------------------------------------------------------------------
+# restart netdata
+
+restart_netdata() {
+  netdata="${1}"
+  shift
+
+  started=0
+
+  progress "Restarting netdata instance"
+
+  if [ -x "${NETDATA_PREFIX}/usr/libexec/netdata/install-service.sh" ]; then
+    run_install_service_script --cmds-only
+  fi
+
+  if [ -z "${NETDATA_INSTALLER_START_CMD}" ]; then
+    if [ -n "${NETDATA_START_CMD}" ]; then
+      NETDATA_INSTALLER_START_CMD="${NETDATA_START_CMD}"
+    else
+      NETDATA_INSTALLER_START_CMD="${netdata}"
+    fi
+  fi
+
+  if [ "${UID}" -eq 0 ]; then
+    echo >&2
+    echo >&2 "Stopping all netdata threads"
+    run stop_all_netdata
+
+    echo >&2 "Starting netdata using command '${NETDATA_INSTALLER_START_CMD}'"
+    # shellcheck disable=SC2086
+    run ${NETDATA_INSTALLER_START_CMD} && started=1
+
+    if [ ${started} -eq 1 ] && sleep 5 && [ -z "$(netdata_pids)" ]; then
+      echo >&2 "Ooops! it seems netdata is not started."
+      started=0
+    fi
+
+    if [ ${started} -eq 0 ]; then
+      echo >&2 "Attempting another netdata start using command '${NETDATA_INSTALLER_START_CMD}'"
+      # shellcheck disable=SC2086
+      run ${NETDATA_INSTALLER_START_CMD} && started=1
+    fi
+
+    if [ ${started} -eq 1 ] && sleep 5 && [ -z "$(netdata_pids)" ]; then
+      echo >&2 "Hm... it seems netdata is still not started."
+      started=0
+    fi
+  fi
+
+
+  if [ ${started} -eq 0 ]; then
+    # still not started... another forced attempt, just run the binary
+    warning "Netdata service still not started, attempting another forced restart by running '${netdata} ${*}'"
+    run stop_all_netdata
+    run "${netdata}" "${@}"
+    return $?
+  fi
+
+  return 0
+}
+
+# -----------------------------------------------------------------------------
+# install netdata logrotate
+
+install_netdata_logrotate() {
+  src="${NETDATA_PREFIX}/usr/lib/netdata/system/logrotate/netdata"
+
+  if [ "${UID}" -eq 0 ]; then
+    if [ -d /etc/logrotate.d ]; then
+      if [ ! -f /etc/logrotate.d/netdata ]; then
+        run cp "${src}" /etc/logrotate.d/netdata
+      fi
+
+      if [ -f /etc/logrotate.d/netdata ]; then
+        run chmod 644 /etc/logrotate.d/netdata
+      fi
+
+      return 0
+    fi
+  fi
+
+  return 1
+}
+
+# -----------------------------------------------------------------------------
+# create netdata.conf
+
+create_netdata_conf() {
+  path="${1}"
+  url="${2}"
+
+  if [ -s "${path}" ]; then
+    return 0
+  fi
+
+  if [ -n "$url" ]; then
+    echo >&2 "Downloading default configuration from netdata..."
+    sleep 5
+
+    # remove a possibly obsolete configuration file
+    [ -f "${path}.new" ] && rm "${path}.new"
+
+    # disable a proxy to get data from the local netdata
+    export http_proxy=
+    export https_proxy=
+
+    check_for_curl
+
+    if [ -n "${curl}" ]; then
+      run "${curl}" -sSL --connect-timeout 10 --retry 3 "${url}" > "${path}.new"
+    elif command -v wget 1> /dev/null 2>&1; then
+      run wget -T 15 -O - "${url}" > "${path}.new"
+    fi
+
+    if [ -s "${path}.new" ]; then
+      run mv "${path}.new" "${path}"
+      run_ok "New configuration saved for you to edit at ${path}"
+    else
+      [ -f "${path}.new" ] && rm "${path}.new"
+      run_failed "Cannot download configuration from netdata daemon using url '${url}'"
+      url=''
+    fi
+  fi
+
+  if [ -z "$url" ]; then
+    cat << EOF > "${path}"
+# netdata can generate its own config which is available at 'http://<IP>:19999/netdata.conf'
+# You can download it using:
+#    curl -o ${path} http://localhost:19999/netdata.conf
+# or
+#    wget -O ${path} http://localhost:19999/netdata.conf
+EOF
+  fi
+
+}
+
+portable_add_user() {
+  username="${1}"
+  homedir="${2}"
+
+  [ -z "${homedir}" ] && homedir="/tmp"
+
+  # Check if user exists
+  if command -v getent > /dev/null 2>&1; then
+    if getent passwd "${username}" > /dev/null 2>&1; then
+        echo >&2 "User '${username}' already exists."
+        return 0
+    fi
+  else
+    if cut -d ':' -f 1 < /etc/passwd | grep "^${username}$" 1> /dev/null 2>&1; then
+        echo >&2 "User '${username}' already exists."
+        return 0
+    fi
+  fi
+
+  echo >&2 "Adding ${username} user account with home ${homedir} ..."
+
+  nologin="$(command -v nologin || echo '/bin/false')"
+
+  if command -v useradd 1> /dev/null 2>&1; then
+    run useradd -r -g "${username}" -c "${username}" -s "${nologin}" --no-create-home -d "${homedir}" "${username}" && return 0
+  elif command -v pw 1> /dev/null 2>&1; then
+    run pw useradd "${username}" -d "${homedir}" -g "${username}" -s "${nologin}" && return 0
+  elif command -v adduser 1> /dev/null 2>&1; then
+    run adduser -h "${homedir}" -s "${nologin}" -D -G "${username}" "${username}" && return 0
+  elif command -v sysadminctl 1> /dev/null 2>&1; then
+    run sysadminctl -addUser "${username}" && return 0
+  fi
+
+  warning "Failed to add ${username} user account!"
+
+  return 1
+}
+
+portable_add_group() {
+  groupname="${1}"
+
+  # Check if group exist
+  if get_group "${groupname}" > /dev/null 2>&1; then
+    echo >&2 "Group '${groupname}' already exists."
+    return 0
+  fi
+
+  echo >&2 "Adding ${groupname} user group ..."
+
+  # Linux
+  if command -v groupadd 1> /dev/null 2>&1; then
+    run groupadd -r "${groupname}" && return 0
+  elif command -v pw 1> /dev/null 2>&1; then
+    run pw groupadd "${groupname}" && return 0
+  elif command -v addgroup 1> /dev/null 2>&1; then
+    run addgroup "${groupname}" && return 0
+  elif command -v dseditgroup 1> /dev/null 2>&1; then
+    dseditgroup -o create "${groupname}" && return 0
+  fi
+
+  warning >&2 "Failed to add ${groupname} user group !"
+  return 1
+}
+
+portable_add_user_to_group() {
+  groupname="${1}"
+  username="${2}"
+
+  # Check if group exist
+  if ! get_group "${groupname}" > /dev/null 2>&1; then
+    echo >&2 "Group '${groupname}' does not exist."
+    # Don’t treat this as a failure, if the group does not exist we should not be trying to add the user to it.
+    return 0
+  fi
+
+  # Check if user is in group
+  if get_group "${groupname}" | cut -d ':' -f 4 | grep -wq "${username}"; then
+    # username is already there
+    echo >&2 "User '${username}' is already in group '${groupname}'."
+    return 0
+  else
+    # username is not in group
+    echo >&2 "Adding ${username} user to the ${groupname} group ..."
+
+    # Linux
+    if command -v usermod 1> /dev/null 2>&1; then
+      run usermod -a -G "${groupname}" "${username}" && return 0
+    elif command -v pw 1> /dev/null 2>&1; then
+      run pw groupmod "${groupname}" -m "${username}" && return 0
+    elif command -v addgroup 1> /dev/null 2>&1; then
+      run addgroup "${username}" "${groupname}" && return 0
+    elif command -v dseditgroup 1> /dev/null 2>&1; then
+      dseditgroup -u "${username}" "${groupname}" && return 0
+    fi
+
+    warning >&2 "Failed to add user ${username} to group ${groupname}!"
+    return 1
+  fi
+}
+
+safe_sha256sum() {
+  # Within the context of the installer, we only use -c option that is common between the two commands
+  # We will have to reconsider if we start non-common options
+  if command -v sha256sum > /dev/null 2>&1; then
+    sha256sum "$@"
+  elif command -v shasum > /dev/null 2>&1; then
+    shasum -a 256 "$@"
+  else
+    fatal "I could not find a suitable checksum binary to use" "L0001"
+  fi
+}
+
+_get_scheduler_type() {
+  if _get_intervaldir > /dev/null ; then
+    echo 'interval'
+  elif issystemd ; then
+    echo 'systemd'
+  elif [ -d /etc/cron.d ] ; then
+    echo 'crontab'
+  else
+    echo 'none'
+  fi
+}
+
+_get_intervaldir() {
+  if [ -d /etc/cron.daily ]; then
+    echo /etc/cron.daily
+  elif [ -d /etc/periodic/daily ]; then
+    echo /etc/periodic/daily
+  else
+    return 1
+  fi
+
+  return 0
+}
+
+install_netdata_updater() {
+  if [ "${INSTALLER_DIR}" ] && [ -f "${INSTALLER_DIR}/packaging/installer/netdata-updater.sh" ]; then
+    cat "${INSTALLER_DIR}/packaging/installer/netdata-updater.sh" > "${NETDATA_PREFIX}/usr/libexec/netdata/netdata-updater.sh" || return 1
+  fi
+
+  if [ "${NETDATA_SOURCE_DIR}" ] && [ -f "${NETDATA_SOURCE_DIR}/packaging/installer/netdata-updater.sh" ]; then
+    cat "${NETDATA_SOURCE_DIR}/packaging/installer/netdata-updater.sh" > "${NETDATA_PREFIX}/usr/libexec/netdata/netdata-updater.sh" || return 1
+  fi
+
+  if issystemd && [ -n "$(get_systemd_service_dir)" ]; then
+    cat "${NETDATA_SOURCE_DIR}/system/systemd/netdata-updater.timer" > "$(get_systemd_service_dir)/netdata-updater.timer"
+    cat "${NETDATA_SOURCE_DIR}/system/systemd/netdata-updater.service" > "$(get_systemd_service_dir)/netdata-updater.service"
+  fi
+
+  sed -i -e "s|THIS_SHOULD_BE_REPLACED_BY_INSTALLER_SCRIPT|${NETDATA_USER_CONFIG_DIR}/.environment|" "${NETDATA_PREFIX}/usr/libexec/netdata/netdata-updater.sh" || return 1
+
+  chmod 0755 "${NETDATA_PREFIX}/usr/libexec/netdata/netdata-updater.sh"
+  echo >&2 "Update script is located at ${TPUT_GREEN}${TPUT_BOLD}${NETDATA_PREFIX}/usr/libexec/netdata/netdata-updater.sh${TPUT_RESET}"
+  echo >&2
+
+  return 0
+}
+
+set_netdata_updater_channel() {
+  sed -i -e "s/^RELEASE_CHANNEL=.*/RELEASE_CHANNEL=\"${RELEASE_CHANNEL}\"/" "${NETDATA_USER_CONFIG_DIR}/.environment"
+}