LXC instance setup(semi-automated)

lxc_add.sh

#!/bin/bash

LXCPATH="/usr/local/lxc/"

# Pre-check
if [ -f ./vms.list ];
then
  echo "[SUCCESS] ./vms.list is found"
else
  echo "[ERROR] ./vms.list file is not found.";
  exit 1;
fi

# Load some files
ADD_LXCS=( `cat ./vms.list | tr -d '\r' | tr '\n' ' '` );

# Add some Groups
for i in "${ADD_LXCS[@]}"; do

  # Get group id and group name.
  HOSTNAME=`echo ${i} | cut -f 1 -d:`;
  IPADDR=`echo ${i} | cut -f 2 -d:`;
  VMGRP=`echo ${i} | cut -f 3 -d:`;

  # Check group id and group name.
  if [ -z ${HOSTNAME} -o -z ${IPADDR} -o -z ${VMGRP} ];
  then
    echo "[ERROR] required param(s) not found....";
    exit 1;
  fi

  if [ ! -d ${LXCPATH}/var/lib/lxc/${HOSTNAME}  ];
  then
    echo "[FOUND] ${HOSTNAME} is not exists.";
    echo "------[STEP 1] Creating instanse... Please Wait...";
    ${LXCPATH}/bin/lxc-create -t corplab -n ${HOSTNAME} >/dev/null 2>&1

    echo "------[STEP 2] Setting groupname to instanse configuration...";
    sed --in-place=.old "s/REPLACE_ME/${VMGRP}/" ${LXCPATH}/var/lib/lxc/${HOSTNAME}/config

    echo "------[STEP 3] Configure vm guest configuration...";
    cat ./ifcfg-eth0.tmpl | sed "s/{REPLACE_HOSTNAME}/${HOSTNAME}/" | sed "s/{REPLACE_IPADDR}/${IPADDR}/" > ${LXCPATH}/var/lib/lxc/${HOSTNAME}/rootfs/etc/sysconfig/network-scripts/ifcfg-eth0
    cat ./network.tmpl | sed "s/{REPLACE_HOSTNAME}/${HOSTNAME}/"  > ${LXCPATH}/var/lib/lxc/${HOSTNAME}/rootfs/etc/sysconfig/network

    echo "------[STEP 4] Configure vm guest password...";
    chroot ${LXCPATH}/var/lib/lxc/${HOSTNAME}/rootfs passwd

    echo "------[STEP 5] Booting vm guest...";
    ${LXCPATH}/bin/lxc-start -n ${HOSTNAME}

    echo "------[END OF OPERATION]------"
  else
    echo "[SKIP] ${HOSTNAME} is already exists.";
  fi

done

${LXCPATH}/bin/lxc-ls -f