install_serverinfo_restapi_remote.sh

#!/bin/bash
# To be ran as root

# Distro check Helper
if [ -f /etc/os-release ]; then
    # freedesktop.org and systemd
    . /etc/os-release
    OS=$NAME
    VER=$VERSION_ID
elif type lsb_release >/dev/null 2>&1; then
    # linuxbase.org
    OS=$(lsb_release -si)
    VER=$(lsb_release -sr)
elif [ -f /etc/lsb-release ]; then
    # For some versions of Debian/Ubuntu without lsb_release command
    . /etc/lsb-release
    OS=$DISTRIB_ID
    VER=$DISTRIB_RELEASE
elif [ -f /etc/debian_version ]; then
    # Older Debian/Ubuntu/etc.
    OS=Debian
    VER=$(cat /etc/debian_version)
elif [ -f /etc/SuSe-release ]; then
    # Older SuSE/etc.
    ...
elif [ -f /etc/redhat-release ]; then
    # Older Red Hat, CentOS, etc.
    ...
else
    # Fall back to uname, e.g. "Linux <version>", also works for BSD, etc.
    OS=$(uname -s)
    VER=$(uname -r)
fi

# Disable service first if running
if [ -f "/etc/systemd/system/serverinfo_restapi.service" ]; then
  # Stopping potentially running service
  echo "Disabling ServerInfo RESTAPI Service"
  systemctl stop serverinfo_restapi
  systemctl disable serverinfo_restapi
  systemctl daemon-reload
  rm -rf "/etc/systemd/system/serverinfo_restapi.service"
fi

# Installing NodeJS 11.x and Dependencies
echo "${OS}"" was detected on ""${HOSTNAME}"
if [ ! -f "/usr/bin/node" ]; then
  echo "Installing NodeJS and dependencies"
  if [ "${OS}" == "Ubuntu" ] ; then
    curl -sL https://deb.nodesource.com/setup_11.x | bash -
    apt-get install -y nodejs
    echo "NodeJS Installed"
  fi
  if [ "${OS}" == "CentOS Linux" ] ; then
    # Install from Binaries
    # NODEJS_VERSION="v11.11.0"
    # NODEJS_DISTRO="linux-x64"
    # NODEJS_INSTALLDIR="/usr/local/lib/nodejs"
    # if [ ! -d "${NODEJS_INSTALLDIR}" ]; then
    #   mkdir -p "${NODEJS_INSTALLDIR}"
    # fi
    # NODEJS_URL="https://nodejs.org/dist/${NODEJS_VERSION}/node-${NODEJS_VERSION}-${NODEJS_DISTRO}.tar.xz"
    # wget "${NODEJS_URL}"
    # tar -xJvf "node-$NODEJS_VERSION-$NODEJS_DISTRO.tar.xz" -C /usr
    # rm -rf "node-$NODEJS_VERSION-$NODEJS_DISTRO.tar.xz"
    #
    # ln -s "/usr/local/lib/nodejs/node-$NODEJS_VERSION-$NODEJS_DISTRO/bin/node" "/usr/bin/node"
    # ln -s "/usr/local/lib/nodejs/node-$NODEJS_VERSION-$NODEJS_DISTRO/bin/npm" "/usr/bin/npm"
    # ln -s "usr/local/lib/nodejs/node-$NODEJS_VERSION-$NODEJS_DISTRO/bin/npx" "/usr/bin/npx"

    # Straight forward ver but not working in script
    yum install gcc-c++ make &> /dev/null
    curl --silent --location https://rpm.nodesource.com/setup_11.x | bash -
    yum install -y nodejs &> /dev/null

    # Install from source
    # yum install gcc-c++ make -y
    # wget "https://nodejs.org/dist/v11.11.0/node-v11.11.0.tar.gz"
    # tar xvf "node-v11.11.0.tar.gz"
    # cd "node-v11.11.0"
    # ./configure
    # make -j $(nproc)
    # make install
    # cd ..
    # rm -rf "node-v11.11.0"
  fi
fi

echo "Cloning serverinfo_restapi to /opt/serverinfo_restapi"
if [ -d "/opt/serverinfo_restapi" ]; then
  rm -rf "/opt/serverinfo_restapi"
fi
git clone "https://github.com/dosssman/nvidia_gpu_serverstatus_web_nodejs.git" "/opt/serverstatus_nodejs"
mv "/opt/serverstatus_nodejs/serverinfo_restapi" "/opt/."
rm -rf "/opt/serverstatus_nodejs"

# Install server App
echo "Installing NodeJS Module"
npm install --prefix /opt/serverinfo_restapi /opt/serverinfo_restapi &> /dev/null

# Create Service and forward necessary command
if [ -f "/etc/systemd/system/serverinfo_restapi.service" ]; then
  rm -rf "/etc/systemd/system/serverinfo_restapi.service"
fi
if [ "${OS}" == "Ubuntu" ] ; then
  ln -s "/opt/serverinfo_restapi/serverinfo_restapi_ubuntu.service" "/etc/systemd/system/serverinfo_restapi.service"
fi
if [ "${OS}" == "CentOS Linux" ] ; then
  ln -s "/opt/serverinfo_restapi/serverinfo_restapi_centos.service" "/etc/systemd/system/serverinfo_restapi.service"
fi

#Opening necessary port
if [ -f "/usr/bin/firewall-cmd" ]; then
  # TODO: Check explicilty if port is open !
  echo "Opening port 9701"
  firewall-cmd --zone=public --add-port=9701/tcp --permanent &> /dev/null
  # firewall-cmd --zone=public --remove-port=10050/tcp
  # firewall-cmd --runtime-to-permanent
  firewall-cmd --reload &> /dev/null
fi

# Enable and start service
echo "Initializing and starting service"
systemctl daemon-reload
# Fix error too many symlink error somewhen
systemctl enable serverinfo_restapi &> /dev/null
systemctl start serverinfo_restapi