:Install a monitoring plug-in on an ECS bare metal instance with a local disk

The following sample script manually installs a specific version of the CloudMonitor agent:

#!/bin/bash
echo "installing cms agent"

if [ -z "${CMS_HOME}" ]; then
  CMS_HOME="/usr/local/cloudmonitor"
  [[ ! -z "`egrep -i coreos /etc/os-release`" ]] && CMS_HOME="/opt/cloudmonitor"
fi

if [ `uname -m` = "x86_64" ]; then
    ARCH="amd64"
else
    ARCH="386"
fi

VERSION="2.1.57"
ELF_NAME=CmsGoAgent.linux-${ARCH}
DOWNLOAD_PATH="cms-go-agent/${VERSION}/${ELF_NAME}"
DEST_UPDATE_FILE="$CMS_HOME/${ELF_NAME}"

current_cms_version="0"
# The X-Dragon architecture is always x86, so just check the version.
if [ -f /usr/local/cloudmonitor/CmsGoAgent.linux-amd64 ]; then
    current_cms_version="$($DEST_UPDATE_FILE version)"
fi

if [ $current_cms_version = "2.1.57" ]; then
    echo "CmsGoAgent already installed"
    echo "Installation success."
    exit 0
fi

if [ -z "${REGION_ID}" ]; then
  REGION_ID="$(wget -q --timeout=1 -t 1 -O - 'http://100.100.100.200/latest/meta-data/region-id')"
fi


if [ -d $CMS_HOME ] ; then
  if [ -f $CMS_HOME/wrapper/bin/cloudmonitor.sh ] ; then
    $CMS_HOME/wrapper/bin/cloudmonitor.sh remove;
    rm -rf $CMS_HOME;
  elif [ -f $DEST_UPDATE_FILE ]; then
    $DEST_UPDATE_FILE stop
    #$DEST_UPDATE_FILE uninstall
    ps aux | grep -v grep | grep $ELF_NAME
  fi
fi

download()
{
  if [ -z "${REGION_ID}" ]; then
    echo "Network type is classic."
    OSS_URL="http://cms-agent-cn-hangzhou.oss-cn-hangzhou-internal.aliyuncs.com/$DOWNLOAD_PATH"
  else
    echo "networkType is vpc, REGION_ID: $REGION_ID"
    if [[ "$REGION_ID" = "cn-shenzhen-finance-1" ]]; then
      OSS_URL="http://cms-download.aliyun.com/$DOWNLOAD_PATH"
      CMS_PROXY="szcmsproxy.aliyun.com:3128"
    elif [[ "$REGION_ID" = "cn-shanghai-finance-1" ]]; then
      OSS_URL="http://cms-agent-$REGION_ID.oss-$REGION_ID-pub-internal.aliyuncs.com/$DOWNLOAD_PATH"
    elif [[ "$REGION_ID" = "ap-south-1" ]]; then
      OSS_URL="http://cms-download.aliyun.com/$DOWNLOAD_PATH"
      CMS_PROXY="cmsproxy-ap-south-1.aliyuncs.com:8080"
    elif [ "$REGION_ID" = "ap-southeast-3" -o "$REGION_ID" = "me-east-1" -o "$REGION_ID" = "cn-chengdu" ]; then
      OSS_URL="http://cms-download.aliyun.com/$DOWNLOAD_PATH"
    else
      OSS_URL="http://cms-agent-$REGION_ID.oss-$REGION_ID-internal.aliyuncs.com/$DOWNLOAD_PATH"
    fi
  fi
  echo download from "$OSS_URL"
  wget -q -e "http_proxy=$CMS_PROXY" "$OSS_URL" -O "$DEST_UPDATE_FILE" -t 3 --connect-timeout=2
  if [ $? != 0 ]; then
    echo "Download failed. Retrying..."
    CMS_PROXY="vpc-opencmsproxy.aliyun.com:8080";
    OSS_URL="http://cms-download.aliyun.com/$DOWNLOAD_PATH"
    wget -q -e "http_proxy=$CMS_PROXY" "$OSS_URL" -O "$DEST_UPDATE_FILE" -t 3 --connect-timeout=2
  fi
  if [ $? != 0 ]; then
    echo "Download failed. Retrying..."
    CMS_PROXY="opencmsproxy.aliyun.com:8080";
    OSS_URL="http://cms-download.aliyun.com/$DOWNLOAD_PATH"
    wget -q -e "http_proxy=$CMS_PROXY" "$OSS_URL" -O "$DEST_UPDATE_FILE" -t 3 --connect-timeout=2
  fi
}

mkdir -p $CMS_HOME && \
chown -R root:root $CMS_HOME && \
download && \
chmod a+x $DEST_UPDATE_FILE
$DEST_UPDATE_FILE check
RC=$?
if [ ${RC} -ne 0 ]; then
    echo CmsGoAgent install failed, your platform is not supported
    exit ${RC}
fi

$DEST_UPDATE_FILE install >/dev/null 2>&1 || true
$DEST_UPDATE_FILE start
ps aux | grep -v grep | grep $ELF_NAME

ACT_VERSION=`$DEST_UPDATE_FILE version`
if [ -n "$ACT_VERSION" ]; then
    echo CmsGoAgent v$ACT_VERSION installed
else
    echo CmsGoAgent install failed
    exit 1
fi