Example Tutorial: Install vagrant-libvirt and create a box from scratch for vagrant.

[Donavan Kienenberger]

# Install vagrant-libvirt with kvm and create a box from scratch.

# This is a install example for a kvm running on centos 6 server, and creating a scratch centos 6 box for vagrant. 

# Hopefully it will save some users time when trying to figure this out.

yum update libvirt

yum update kvm

yum install libxslt-devel libxml2-devel libvirt-devel libguestfs-tools-c

# https://www.vagrantup.com/downloads.html

rpm -i "https://dl.bintray.com/mitchellh/vagrant/vagrant_1.7.2_x86_64.rpm"

vagrant plugin install vagrant-libvirt

# other great options:

vagrant plugin install vagrant-rekey-ssh

vagrant plugin install sahara

vagrant plugin install vagrant-mutate

vagrant plugin install vagrant-triggers

# kvm install example:

# Create your default using virt-install or the GUI tools.

# The example image I used was a CentOS 6.6 install.

# Note we are not using vagrant to create this, but making a base image from scratch.

# Not really covering this, use whatever method works for you to create a default VM

sudo virt-install \

   --accelerate \

   --hvm \

   --name=vagrant-centos66-base \

   --disk path=/var/lib/libvirt/images/vagrant-centos66-base.qcow2,format=qcow2,size=30,sparse=true \

   --vnc \

   --network bridge=br0  \

   --vcpus=2 --ram=1024 \

   --os-type=linux \

   --os-variant=rhel6 \

   --keymap="en-us" \

   --mac="01:01:01:01:01:1F" \

   --location="ftp://<yourserver>/pub/inst" \

   --extra-args="ks=ftp://<yourserver>/pub/kickstart.cfg"

# log into vagrant-centos66-base VM as root and preform the following prep for the box:

# Yum rsync and update

yum -y install rsync

yum -y update

yum clean all

# Create the vagrant user

useradd vagrant

mkdir ~vagrant/.ssh

chmod 700 ~vagrant/.ssh

wget --no-check-certificate https://raw.githubusercontent.com/mitchellh/vagrant/master/keys/vagrant.pub -O /home/vagrant/.ssh/authorized_keys

chmod 600 ~vagrant/.ssh/authorized_keys

chown -R vagrant.vagrant ~vagrant/.ssh

# Setup Sudoers

# Comment for rsync to work.

sed -i -r 's/^Defaults .*requiretty/#Defaults requiretty/' /etc/sudoers

# Add vagrant account to sudoers

echo " " >> /etc/sudoers

echo "# User rules for vagrant" >> /etc/sudoers

echo "vagrant ALL=(ALL) NOPASSWD:ALL" >> /etc/sudoers

echo " " >> /etc/sudoers

visudo -c

#Speed up Grub

sed -i -r 's/^timeout.*/timeout=1/' /boot/grub/grub.conf

# Fix Network Settings

sed -i -r 's/^HOSTNAME.*/HOSTNAME=centos66.vagrantup.com/' /etc/sysconfig/network

# Leave only eth0 config - the rest will be managed by vagrant

rm -f /etc/udev/rules.d/70-persistent-net.rules

rm -f /etc/sysconfig/network-scripts/ifcfg-eth{0,1,2,3}

cat > /etc/sysconfig/network-scripts/ifcfg-eth0 <<EOF

DEVICE="eth0"

TYPE="Ethernet"

ONBOOT="yes"

NM_CONTROLLED=no

BOOTPROTO="dhcp"

EOF

# password change (not necessary, unless making a public box)

#echo "vagrant" | passwd --stdin vagrant

#echo "vagrant" | passwd --stdin root

#shutdown vagrant-centos66-base

poweroff

# Add VAGRANT_DEFAULT_PROVIDER ENV to your bash shell.

echo "" >> ~/.bashrc 

echo "# User ENV for vagrant" >> ~/.bashrc 

echo "export VAGRANT_DEFAULT_PROVIDER=libvirt" >> ~/.bashrc 

echo "" >> ~/.bashrc 

source ~/.bashrc

#Copy the qcow2 to a new folder under the name box.img

mkdir ~/newbox

cd ~/newbox

cp /var/lib/libvirt/images/vagrant-centos66-base.qcow2 ~/newbox/box.img

#add:

#Create Vagrantfile

cat > ~/newbox/Vagrantfile <<EOF

Vagrant.configure("2") do |config|

  config.vm.box = "vagrant-centos66-base"

end

EOF

#Create metadata.json

cat > ~/newbox/metadata.json <<EOF

{

  "provider": "libvirt",

  "format": "qcow2",

  "virtual_size": 30

}

EOF

tar cvzf centos66.box ./metadata.json ./Vagrantfile ./box.img

vagrant box add base-centos66 centos66.box 

# you don't want to use ~/newbox as your rsync directory, make a new one.

mkdir ~/vagrant

cd ~/vagrant

vagrant init base-centos66

vagrant up (optinal now: --provider=libvirt)

vagrant destroy

# always refresh virsh pool after a destroy, clears up a lot of potential problems.

virsh pool-refresh default

# Remove a libvirt box (example: testbox)

vagrant box remove testbox

rm /var/lib/libvirt/images/testbox_vagrant_box_image_0.img

virsh pool-refresh default

See: https://github.com/pradels/vagrant-libvirt/issues/85

#Extras:

################

# Useful bootstrap.sh info:

#!/usr/bin/env bash

# If you need to change your box hostname:

#sed -i -r 's/^HOSTNAME.*/HOSTNAME=newhost/' /etc/sysconfig/network

#hostname newhost

#Sync your clock.

ntpdate 1.pool.ntp.org

#Useful Vagrantfile info: Setting up a publicly accessible server using kvm interface br0

Vagrant.configure("2") do |config|

# Assumes you are using dhcp, 

# Included an example on how to set a MAC address.

Vagrant.configure("2") do |config|

  config.vm.define :default do |default|

    default.vm.box = "base-centos66"

    default.vm.network :public_network, :mac => " 000101010101", :dev => "br0", :mode => 'bridge'

  end

end