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Viewing file:     system-info.sh (15.74 KB)      -rwxr-xr-x

#!/usr/bin/env sh

# -------------------------------------------------------------------------------------------------
# detect the kernel

KERNEL_NAME="$(uname -s)"
KERNEL_VERSION="$(uname -r)"
ARCHITECTURE="$(uname -m)"

# -------------------------------------------------------------------------------------------------
# detect the virtualization and possibly the container technology

CONTAINER="unknown"
CONT_DETECTION="none"
CONTAINER_IS_OFFICIAL_IMAGE="${NETDATA_OFFICIAL_IMAGE:-false}"

if [ -z "${VIRTUALIZATION}" ]; then
  VIRTUALIZATION="unknown"
  VIRT_DETECTION="none"

  if [ -n "$(command -v systemd-detect-virt 2> /dev/null)" ]; then
    VIRTUALIZATION="$(systemd-detect-virt -v)"
    VIRT_DETECTION="systemd-detect-virt"
    CONTAINER="$(systemd-detect-virt -c)"
    CONT_DETECTION="systemd-detect-virt"
  else
    if grep -q "^flags.*hypervisor" /proc/cpuinfo 2> /dev/null; then
      VIRTUALIZATION="hypervisor"
      VIRT_DETECTION="/proc/cpuinfo"
    elif [ -n "$(command -v dmidecode)" ] && dmidecode -s system-product-name 2> /dev/null | grep -q "VMware\|Virtual\|KVM\|Bochs"; then
      VIRTUALIZATION="$(dmidecode -s system-product-name)"
      VIRT_DETECTION="dmidecode"
    else
      VIRTUALIZATION="none"
    fi
  fi
  if [ -z "${VIRTUALIZATION}" ]; then
    # Output from the command is outside of spec
    VIRTUALIZATION="unknown"
  fi
else
  # Passed from outside - probably in docker run
  VIRT_DETECTION="provided"
fi

# -------------------------------------------------------------------------------------------------
# detect containers with heuristics

if [ "${CONTAINER}" = "unknown" ]; then
  if [ -f /proc/1/sched ]; then
    IFS='(, ' read -r process _ < /proc/1/sched
    if [ "${process}" = "netdata" ]; then
      CONTAINER="container"
      CONT_DETECTION="process"
    fi
  fi
  # 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 /bin/running-in-container > /dev/null 2>&1; then
    CONTAINER="container"
    CONT_DETECTION="/bin/running-in-container"
  fi

  # lxc sets environment variable 'container'
  #shellcheck disable=SC2154
  if [ -n "${container}" ]; then
    CONTAINER="lxc"
    CONT_DETECTION="containerenv"
  fi

  # docker creates /.dockerenv
  # http://stackoverflow.com/a/25518345
  if [ -f "/.dockerenv" ]; then
    CONTAINER="docker"
    CONT_DETECTION="dockerenv"
  fi

fi

# -------------------------------------------------------------------------------------------------
# detect the operating system

# Initially assume all OS detection values are for a container, these are moved later if we are bare-metal

CONTAINER_OS_DETECTION="unknown"
CONTAINER_NAME="unknown"
CONTAINER_VERSION="unknown"
CONTAINER_VERSION_ID="unknown"
CONTAINER_ID="unknown"
CONTAINER_ID_LIKE="unknown"

if [ "${KERNEL_NAME}" = "Darwin" ]; then
  CONTAINER_ID=$(sw_vers -productName)
  CONTAINER_ID_LIKE="mac"
  CONTAINER_NAME="mac"
  CONTAINER_VERSION=$(sw_vers -productVersion)
  CONTAINER_OS_DETECTION="sw_vers"
elif [ "${KERNEL_NAME}" = "FreeBSD" ]; then
  CONTAINER_ID="FreeBSD"
  CONTAINER_ID_LIKE="FreeBSD"
  CONTAINER_NAME="FreeBSD"
  CONTAINER_OS_DETECTION="uname"
  CONTAINER_VERSION=$(uname -r)
  KERNEL_VERSION=$(uname -K)
else
  if [ -f "/etc/os-release" ]; then
    eval "$(grep -E "^(NAME|ID|ID_LIKE|VERSION|VERSION_ID)=" < /etc/os-release | sed 's/^/CONTAINER_/')"
    CONTAINER_OS_DETECTION="/etc/os-release"
  fi

  # shellcheck disable=SC2153
  if [ "${CONTAINER_NAME}" = "unknown" ] || [ "${CONTAINER_VERSION}" = "unknown" ] || [ "${CONTAINER_ID}" = "unknown" ]; then
    if [ -f "/etc/lsb-release" ]; then
      if [ "${CONTAINER_OS_DETECTION}" = "unknown" ]; then
        CONTAINER_OS_DETECTION="/etc/lsb-release"
      else
        CONTAINER_OS_DETECTION="Mixed"
      fi
      DISTRIB_ID="unknown"
      DISTRIB_RELEASE="unknown"
      DISTRIB_CODENAME="unknown"
      eval "$(grep -E "^(DISTRIB_ID|DISTRIB_RELEASE|DISTRIB_CODENAME)=" < /etc/lsb-release)"
      if [ "${CONTAINER_NAME}" = "unknown" ]; then CONTAINER_NAME="${DISTRIB_ID}"; fi
      if [ "${CONTAINER_VERSION}" = "unknown" ]; then CONTAINER_VERSION="${DISTRIB_RELEASE}"; fi
      if [ "${CONTAINER_ID}" = "unknown" ]; then CONTAINER_ID="${DISTRIB_CODENAME}"; fi
    fi
    if [ -n "$(command -v lsb_release 2> /dev/null)" ]; then
      if [ "${CONTAINER_OS_DETECTION}" = "unknown" ]; then
        CONTAINER_OS_DETECTION="lsb_release"
      else
        CONTAINER_OS_DETECTION="Mixed"
      fi
      if [ "${CONTAINER_NAME}" = "unknown" ]; then CONTAINER_NAME="$(lsb_release -is 2> /dev/null)"; fi
      if [ "${CONTAINER_VERSION}" = "unknown" ]; then CONTAINER_VERSION="$(lsb_release -rs 2> /dev/null)"; fi
      if [ "${CONTAINER_ID}" = "unknown" ]; then CONTAINER_ID="$(lsb_release -cs 2> /dev/null)"; fi
    fi
  fi
fi

# If Netdata is not running in a container then use the local detection as the host
HOST_OS_DETECTION="unknown"
HOST_NAME="unknown"
HOST_VERSION="unknown"
HOST_VERSION_ID="unknown"
HOST_ID="unknown"
HOST_ID_LIKE="unknown"

# 'systemd-detect-virt' returns 'none' if there is no hardware/container virtualization.
if [ "${CONTAINER}" = "unknown" ] || [ "${CONTAINER}" = "none" ]; then
  for v in NAME ID ID_LIKE VERSION VERSION_ID OS_DETECTION; do
    eval "HOST_$v=\$CONTAINER_$v; CONTAINER_$v=none"
  done
else
  # Otherwise try and use a user-supplied bind-mount into the container to resolve the host details
  if [ -e "/host/etc/os-release" ]; then
    OS_DETECTION="/etc/os-release"
    eval "$(grep -E "^(NAME|ID|ID_LIKE|VERSION|VERSION_ID)=" < /host/etc/os-release | sed 's/^/HOST_/')"
    HOST_OS_DETECTION="/host/etc/os-release"
  fi
  if [ "${HOST_NAME}" = "unknown" ] || [ "${HOST_VERSION}" = "unknown" ] || [ "${HOST_ID}" = "unknown" ]; then
    if [ -f "/host/etc/lsb-release" ]; then
      if [ "${HOST_OS_DETECTION}" = "unknown" ]; then
        HOST_OS_DETECTION="/etc/lsb-release"
      else
        HOST_OS_DETECTION="Mixed"
      fi
      DISTRIB_ID="unknown"
      DISTRIB_RELEASE="unknown"
      DISTRIB_CODENAME="unknown"
      eval "$(grep -E "^(DISTRIB_ID|DISTRIB_RELEASE|DISTRIB_CODENAME)=" < /etc/lsb-release)"
      if [ "${HOST_NAME}" = "unknown" ]; then HOST_NAME="${DISTRIB_ID}"; fi
      if [ "${HOST_VERSION}" = "unknown" ]; then HOST_VERSION="${DISTRIB_RELEASE}"; fi
      if [ "${HOST_ID}" = "unknown" ]; then HOST_ID="${DISTRIB_CODENAME}"; fi
    fi
  fi
fi

# -------------------------------------------------------------------------------------------------
# Detect information about the CPU

LCPU_COUNT="unknown"
CPU_MODEL="unknown"
CPU_VENDOR="unknown"
CPU_FREQ="unknown"
CPU_INFO_SOURCE="none"

possible_cpu_freq=""
nproc="$(command -v nproc)"
lscpu="$(command -v lscpu)"
lscpu_output=""
dmidecode="$(command -v dmidecode)"
dmidecode_output=""

if [ -n "${lscpu}" ] && lscpu > /dev/null 2>&1; then
  lscpu_output="$(LC_NUMERIC=C ${lscpu} 2> /dev/null)"
  CPU_INFO_SOURCE="lscpu"
  LCPU_COUNT="$(echo "${lscpu_output}" | grep "^CPU(s):" | cut -f 2 -d ':' | sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//')"
  CPU_VENDOR="$(echo "${lscpu_output}" | grep "^Vendor ID:" | cut -f 2 -d ':' | sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//')"
  CPU_MODEL="$(echo "${lscpu_output}" | grep "^Model name:" | cut -f 2 -d ':' | sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//')"
  possible_cpu_freq="$(echo "${lscpu_output}" | grep -F "CPU max MHz:" | cut -f 2 -d ':' | sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//' | grep -o '^[0-9]*') MHz"
  if [ "${possible_cpu_freq}" = " MHz" ]; then
    possible_cpu_freq="$(echo "${lscpu_output}" | grep -F "CPU MHz:" | cut -f 2 -d ':' | sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//' | grep -o '^[0-9]*') MHz"
  fi
elif [ -n "${dmidecode}" ] && dmidecode -t processor > /dev/null 2>&1; then
  dmidecode_output="$(${dmidecode} -t processor 2> /dev/null)"
  CPU_INFO_SOURCE="dmidecode"
  LCPU_COUNT="$(echo "${dmidecode_output}" | grep -F "Thread Count:" | cut -f 2 -d ':' | sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//')"
  CPU_VENDOR="$(echo "${dmidecode_output}" | grep -F "Manufacturer:" | cut -f 2 -d ':' | sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//')"
  CPU_MODEL="$(echo "${dmidecode_output}" | grep -F "Version:" | cut -f 2 -d ':' | sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//')"
  possible_cpu_freq="$(echo "${dmidecode_output}" | grep -F "Current Speed:" | cut -f 2 -d ':' | sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//')"
else
  if [ -n "${nproc}" ]; then
    CPU_INFO_SOURCE="nproc"
    LCPU_COUNT="$(${nproc})"
  elif [ "${KERNEL_NAME}" = FreeBSD ]; then
    CPU_INFO_SOURCE="sysctl"
    LCPU_COUNT="$(sysctl -n kern.smp.cpus)"
  elif [ -d /sys/devices/system/cpu ]; then
    CPU_INFO_SOURCE="sysfs"
    # This is potentially more accurate than checking `/proc/cpuinfo`.
    LCPU_COUNT="$(find /sys/devices/system/cpu -mindepth 1 -maxdepth 1 -type d -name 'cpu*' | grep -cEv 'idle|freq')"
  elif [ -r /proc/cpuinfo ]; then
    CPU_INFO_SOURCE="procfs"
    LCPU_COUNT="$(grep -c ^processor /proc/cpuinfo)"
  fi

  # If we have GNU uname, we can use that to get CPU info (probably).
  if uname --version 2> /dev/null | grep -qF 'GNU coreutils'; then
    CPU_INFO_SOURCE="${CPU_INFO_SOURCE} uname"
    CPU_MODEL="$(uname -p)"
    CPU_VENDOR="$(uname -i)"
  elif [ "${KERNEL_NAME}" = FreeBSD ]; then
    if (echo "${CPU_INFO_SOURCE}" | grep -qv sysctl); then
      CPU_INFO_SOURCE="${CPU_INFO_SOURCE} sysctl"
    fi

    CPU_MODEL="$(sysctl -n hw.model)"
  elif [ -r /proc/cpuinfo ]; then
    if (echo "${CPU_INFO_SOURCE}" | grep -qv procfs); then
      CPU_INFO_SOURCE="${CPU_INFO_SOURCE} procfs"
    fi

    CPU_MODEL="$(grep -F "model name" /proc/cpuinfo | head -n 1 | cut -f 2 -d ':' | sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//')"
    CPU_VENDOR="$(grep -F "vendor_id" /proc/cpuinfo | head -n 1 | cut -f 2 -d ':' | sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//')"
  fi
fi

if [ -r /sys/devices/system/cpu/cpu0/cpufreq/base_frequency ]; then
  if (echo "${CPU_INFO_SOURCE}" | grep -qv sysfs); then
    CPU_INFO_SOURCE="${CPU_INFO_SOURCE} sysfs"
  fi

  CPU_FREQ="$(cat /sys/devices/system/cpu/cpu0/cpufreq/base_frequency)"
elif [ -n "${possible_cpu_freq}" ]; then
  CPU_FREQ="${possible_cpu_freq}"
elif [ -r /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq ]; then
  if (echo "${CPU_INFO_SOURCE}" | grep -qv sysfs); then
    CPU_INFO_SOURCE="${CPU_INFO_SOURCE} sysfs"
  fi

  CPU_FREQ="$(cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq)"
fi

freq_units="$(echo "${CPU_FREQ}" | cut -f 2 -d ' ')"

case "${freq_units}" in
  GHz)
    value="$(echo "${CPU_FREQ}" | cut -f 1 -d ' ')"
    CPU_FREQ="$((value * 1000 * 1000 * 1000))"
    ;;
  MHz)
    value="$(echo "${CPU_FREQ}" | cut -f 1 -d ' ')"
    CPU_FREQ="$((value * 1000 * 1000))"
    ;;
  KHz)
    value="$(echo "${CPU_FREQ}" | cut -f 1 -d ' ')"
    CPU_FREQ="$((value * 1000))"
    ;;
  *) ;;

esac

# -------------------------------------------------------------------------------------------------
# Detect the total system RAM

TOTAL_RAM="unknown"
RAM_DETECTION="none"

if [ "${KERNEL_NAME}" = FreeBSD ]; then
  RAM_DETECTION="sysctl"
  TOTAL_RAM="$(sysctl -n hw.physmem)"
elif [ "${KERNEL_NAME}" = Darwin ]; then
  RAM_DETECTION="sysctl"
  TOTAL_RAM="$(sysctl -n hw.physmem)"
elif [ -r /proc/meminfo ]; then
  RAM_DETECTION="procfs"
  TOTAL_RAM="$(grep -F MemTotal /proc/meminfo | cut -f 2 -d ':' | sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//' | cut -f 1 -d ' ')"
  TOTAL_RAM="$((TOTAL_RAM * 1024))"
fi

# -------------------------------------------------------------------------------------------------
# Detect the total system disk space

DISK_SIZE="unknown"
DISK_DETECTION="none"

if [ "${KERNEL_NAME}" = "Darwin" ]; then
  types='hfs'

  if (lsvfs | grep -q apfs); then
    types="${types},apfs"
  fi

  if (lsvfs | grep -q ufs); then
    types="${types},ufs"
  fi

  DISK_DETECTION="df"
  DISK_SIZE=$(($(/bin/df -k -t ${types} | tail -n +2 | sed -E 's/\/dev\/disk([[:digit:]]*)s[[:digit:]]*/\/dev\/disk\1/g' | sort -k 1 | awk -F ' ' '{s=$NF;for(i=NF-1;i>=1;i--)s=s FS $i;print s}' | uniq -f 9 | awk '{print $8}' | tr '\n' '+' | rev | cut -f 2- -d '+' | rev) * 1024))
elif [ "${KERNEL_NAME}" = FreeBSD ]; then
  types='ufs'

  if (lsvfs | grep -q zfs); then
    types="${types},zfs"
  fi

  DISK_DETECTION="df"
  total="$(df -t ${types} -c -k | tail -n 1 | awk '{print $2}')"
  DISK_SIZE="$((total * 1024))"
else
  if [ -d /sys/block ] && [ -r /proc/devices ]; then
    dev_major_whitelist=''

    # This is a list of device names used for block storage devices.
    # These translate to the prefixs of files in `/dev` indicating the device type.
    # They are sorted by lowest used device major number, with dynamically assigned ones at the end.
    # We use this to look up device major numbers in `/proc/devices`
    device_names='hd sd mfm ad ftl pd nftl dasd intfl mmcblk ub xvd rfd vbd nvme'

    for name in ${device_names}; do
      if grep -qE " ${name}\$" /proc/devices; then
        dev_major_whitelist="${dev_major_whitelist}:$(grep -E "${name}\$" /proc/devices | sed -e 's/^[[:space:]]*//' | cut -f 1 -d ' ' | tr '\n' ':'):"
      fi
    done

    DISK_DETECTION="sysfs"
    DISK_SIZE="0"
    for disk in /sys/block/*; do
      if [ -r "${disk}/size" ] \
        && (echo "${dev_major_whitelist}" | grep -q ":$(cut -f 1 -d ':' "${disk}/dev"):") \
        && grep -qv 1 "${disk}/removable"; then
        size="$(($(cat "${disk}/size") * 512))"
        DISK_SIZE="$((DISK_SIZE + size))"
      fi
    done
  elif df --version 2> /dev/null | grep -qF "GNU coreutils"; then
    DISK_DETECTION="df"
    DISK_SIZE=$(($(df -x tmpfs -x devtmpfs -x squashfs -l -B1 --output=source,size | tail -n +2 | sort -u -k 1 | awk '{print $2}' | tr '\n' '+' | head -c -1)))
  else
    DISK_DETECTION="df"
    include_fs_types="ext*|btrfs|xfs|jfs|reiser*|zfs"
    DISK_SIZE=$(($(df -T -P | tail -n +2 | sort -u -k 1 | grep "${include_fs_types}" | awk '{print $3}' | tr '\n' '+' | head -c -1) * 1024))
  fi
fi

# -------------------------------------------------------------------------------------------------
# Detect whether the node is kubernetes node

HOST_IS_K8S_NODE="false"

if [ -n "${KUBERNETES_SERVICE_HOST}" ] && [ -n "${KUBERNETES_SERVICE_PORT}" ]; then
  # These env vars are set for every container managed by k8s.
  HOST_IS_K8S_NODE="true"
elif pgrep "kubelet"; then
  # The kubelet is the primary "node agent" that runs on each node.
  HOST_IS_K8S_NODE="true"
fi

echo "NETDATA_CONTAINER_OS_NAME=${CONTAINER_NAME}"
echo "NETDATA_CONTAINER_OS_ID=${CONTAINER_ID}"
echo "NETDATA_CONTAINER_OS_ID_LIKE=${CONTAINER_ID_LIKE}"
echo "NETDATA_CONTAINER_OS_VERSION=${CONTAINER_VERSION}"
echo "NETDATA_CONTAINER_OS_VERSION_ID=${CONTAINER_VERSION_ID}"
echo "NETDATA_CONTAINER_OS_DETECTION=${CONTAINER_OS_DETECTION}"
echo "NETDATA_CONTAINER_IS_OFFICIAL_IMAGE=${CONTAINER_IS_OFFICIAL_IMAGE}"
echo "NETDATA_HOST_OS_NAME=${HOST_NAME}"
echo "NETDATA_HOST_OS_ID=${HOST_ID}"
echo "NETDATA_HOST_OS_ID_LIKE=${HOST_ID_LIKE}"
echo "NETDATA_HOST_OS_VERSION=${HOST_VERSION}"
echo "NETDATA_HOST_OS_VERSION_ID=${HOST_VERSION_ID}"
echo "NETDATA_HOST_OS_DETECTION=${HOST_OS_DETECTION}"
echo "NETDATA_HOST_IS_K8S_NODE=${HOST_IS_K8S_NODE}"
echo "NETDATA_SYSTEM_KERNEL_NAME=${KERNEL_NAME}"
echo "NETDATA_SYSTEM_KERNEL_VERSION=${KERNEL_VERSION}"
echo "NETDATA_SYSTEM_ARCHITECTURE=${ARCHITECTURE}"
echo "NETDATA_SYSTEM_VIRTUALIZATION=${VIRTUALIZATION}"
echo "NETDATA_SYSTEM_VIRT_DETECTION=${VIRT_DETECTION}"
echo "NETDATA_SYSTEM_CONTAINER=${CONTAINER}"
echo "NETDATA_SYSTEM_CONTAINER_DETECTION=${CONT_DETECTION}"
echo "NETDATA_SYSTEM_CPU_LOGICAL_CPU_COUNT=${LCPU_COUNT}"
echo "NETDATA_SYSTEM_CPU_VENDOR=${CPU_VENDOR}"
echo "NETDATA_SYSTEM_CPU_MODEL=${CPU_MODEL}"
echo "NETDATA_SYSTEM_CPU_FREQ=${CPU_FREQ}"
echo "NETDATA_SYSTEM_CPU_DETECTION=${CPU_INFO_SOURCE}"
echo "NETDATA_SYSTEM_TOTAL_RAM=${TOTAL_RAM}"
echo "NETDATA_SYSTEM_RAM_DETECTION=${RAM_DETECTION}"
echo "NETDATA_SYSTEM_TOTAL_DISK_SIZE=${DISK_SIZE}"
echo "NETDATA_SYSTEM_DISK_DETECTION=${DISK_DETECTION}"