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pxe: Configure Vagrant PXE with config.rb

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This commit is contained in:
Dalton Hubble
2015-11-25 15:12:32 -08:00
parent b193b119d2
commit eb7514d781
6 changed files with 61 additions and 94 deletions
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4
README.md
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@@ -23,13 +23,13 @@ Launch `virt-manager` to create a new virtual machine. When prompted, select Net
If you see "Nothing" to boot, try force resetting the client VM.
Use SSH to connect to a client VM if booting and parsing the cloud-config succeeded. The CLIENT_IP will be visible in the virt-manager console.
Use SSH to connect to a client VM after boot and cloud-config succeed. The CLIENT_IP will be visible in the virt-manager console.
ssh core@CLIENT_IP # requires ssh_authorized_keys entry in cloud-config
### Configuration
TODO
The Vagrantfile parses the `config.rb` file for several variables you can use to configure network settings.
### Reload

81
Vagrantfile vendored
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@@ -1,81 +0,0 @@
# -*- mode: ruby -*-
# vi: set ft=ruby :
# All Vagrant configuration is done below. The "2" in Vagrant.configure
# configures the configuration version (we support older styles for
# backwards compatibility). Please don't change it unless you know what
# you're doing.
Vagrant.configure(2) do |config|
# The most common configuration options are documented and commented below.
# For a complete reference, please see the online documentation at
# https://docs.vagrantup.com.
# Every Vagrant development environment requires a box. You can search for
# boxes at https://atlas.hashicorp.com/search.
config.vm.box = "fedora/23-cloud-base"
# Disable automatic box update checking. If you disable this, then
# boxes will only be checked for updates when the user runs
# `vagrant box outdated`. This is not recommended.
# config.vm.box_check_update = false
# Create a forwarded port mapping which allows access to a specific port
# within the machine from a port on the host machine. In the example below,
# accessing "localhost:8080" will access port 80 on the guest machine.
# config.vm.network "forwarded_port", guest: 80, host: 8080
# Create a private network, which allows host-only access to the machine
# using a specific IP.
# Brdige Static IP address
config.vm.network "public_network", ip: "192.168.32.10", dev: "wlp3s0"
# Create a public network, which generally matched to bridged network.
# Bridged networks make the machine appear as another physical device on
# your network.
# config.vm.network "public_network"
config.vm.provider :libvirt do |libvirt|
libvirt.management_network_name = "vagrant-libvirt"
libvirt.management_network_address = "192.168.32.0/24"
end
# Share an additional folder to the guest VM. The first argument is
# the path on the host to the actual folder. The second argument is
# the path on the guest to mount the folder. And the optional third
# argument is a set of non-required options.
# config.vm.synced_folder "../data", "/vagrant_data"
# Provider-specific configuration so you can fine-tune various
# backing providers for Vagrant. These expose provider-specific options.
# Example for VirtualBox:
#
# config.vm.provider "virtualbox" do |vb|
# # Display the VirtualBox GUI when booting the machine
# vb.gui = true
#
# # Customize the amount of memory on the VM:
# vb.memory = "1024"
# end
#
# View the documentation for the provider you are using for more
# information on available options.
# Define a Vagrant Push strategy for pushing to Atlas. Other push strategies
# such as FTP and Heroku are also available. See the documentation at
# https://docs.vagrantup.com/v2/push/atlas.html for more information.
# config.push.define "atlas" do |push|
# push.app = "YOUR_ATLAS_USERNAME/YOUR_APPLICATION_NAME"
# end
# Provision a PXE Server
config.vm.provision :shell, :privileged => true, :path => "scripts/pxe.sh"
# Enable provisioning with a shell script. Additional provisioners such as
# Puppet, Chef, Ansible, Salt, and Docker are also available. Please see the
# documentation for more information about their specific syntax and use.
# config.vm.provision "shell", inline: <<-SHELL
# sudo apt-get update
# sudo apt-get install -y apache2
# SHELL
end

0
.gitignore → pxe/.gitignore vendored
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33
pxe/Vagrantfile vendored Normal file
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@@ -0,0 +1,33 @@
# -*- mode: ruby -*-
# vi: set ft=ruby :
require 'fileutils'
CONFIG = File.join(File.dirname(__FILE__), "config.rb")
if File.exist?(CONFIG)
require CONFIG
end
Vagrant.configure(2) do |config|
config.vm.box = "fedora/23-cloud-base"
# Create a public network with a static IP address
config.vm.network "public_network", ip: $pxe_server_ip, dev: "wlp3s0"
# Provider Specific Configuration
config.vm.provider :libvirt do |libvirt|
libvirt.cpus = 1
libvirt.memory = 1024
libvirt.management_network_name = "vagrant-libvirt"
libvirt.management_network_address = $network_range
end
# Provision a PXE Server
config.vm.provision :shell do |s|
s.privileged = true
s.path = "scripts/pxe.sh"
s.args = [$pxe_server_ip, $dhcp_range, $ssh_authorized_key]
end
end

12
pxe/config.rb Normal file
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@@ -0,0 +1,12 @@
# Vagrant Network CIDR
$network_range="192.168.32.0/24"
# PXE Server IP, must be from the network_range
$pxe_server_ip="192.168.32.10"
# DHCP range dnsmasq should serve, must be a subset of network_range
$dhcp_range="192.168.32.2,192.168.32.254,12h"
# SSH Authorized Key for client CoreOS instances
$ssh_authorized_key="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 dghubble@gmail.com"

25
scripts/pxe.sh → pxe/scripts/pxe.sh
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@@ -1,15 +1,18 @@
#!/bin/bash -e
# Setup a minimal PXE Server
# Usage: Setup a minimal PXE Server
# ./pxe.sh IP DHCP_RANGE SSH_KEY
# ./pxe.sh "192.168.32.10" "192.168.32.2,192.168.32.254,12h" "AABC.... name"
# PXE Server IP should be the static IP set in the Vagrantfile.
export NODE_IP=192.168.32.10
PXE_SERVER_IP=$1
DHCP_RANGE=$2
SSH_AUTHORIZED_KEYS=$3
# dnsmasq - your all in one DHCP, TFTP, and DNS
dnf install -yq dnsmasq
cp /etc/dnsmasq.conf /etc/dnsmasq.old
cat << EOF > "/etc/dnsmasq.conf"
dhcp-range=192.168.32.2,192.168.32.254,12h
dhcp-range=$DHCP_RANGE
dhcp-boot=pxelinux.0
enable-tftp
tftp-root=/var/lib/tftpboot
@@ -37,18 +40,19 @@ display boot.msg
label coreos
menu default
kernel coreos_production_pxe.vmlinuz
append initrd=coreos_production_pxe_image.cpio.gz cloud-config-url=http://$NODE_IP/pxe-cloud-config.yml
append initrd=coreos_production_pxe_image.cpio.gz cloud-config-url=http://$PXE_SERVER_IP/pxe-cloud-config.yml
EOF
# TFTP ldlinux.c32 pxelinux.0
dnf install -yq syslinux
cp /usr/share/syslinux/pxelinux.0 /var/lib/tftpboot/pxelinux.0
cp /usr/share/syslinux/ldlinux.c32 /var/lib/tftpboot/ldlinux.c32
ln -s /usr/share/syslinux/pxelinux.0 /var/lib/tftpboot/pxelinux.0
ln -s /usr/share/syslinux/ldlinux.c32 /var/lib/tftpboot/ldlinux.c32
# TFTP kernel image and options
dnf install -yq wget
wget -q -O /var/lib/tftpboot/coreos_production_pxe.vmlinuz http://stable.release.core-os.net/amd64-usr/current/coreos_production_pxe.vmlinuz
wget -q -O /var/lib/tftpboot/coreos_production_pxe_image.cpio.gz http://stable.release.core-os.net/amd64-usr/current/coreos_production_pxe_image.cpio.gz
# Add cobbler_var_lib_t and tftpdir_rw_t SELinux context as appropriate
restorecon -R /var/lib/tftpboot
systemctl enable dnsmasq
@@ -56,10 +60,9 @@ systemctl start dnsmasq
# HTTP
# static HTTP server
# static cloud-config HTTP server
dnf install -yq httpd
# TODO - this static config is exactly what we can improve upon
cat << EOF > "/var/www/html/pxe-cloud-config.yml"
#cloud-config
coreos:
@@ -69,10 +72,10 @@ coreos:
- name: fleet.service
command: start
ssh_authorized_keys:
- ssh-rsa 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 dghubble@gmail.com
- ssh-rsa $SSH_AUTHORIZED_KEYS
EOF
systemctl enable httpd
systemctl start httpd
echo "Done"
echo "Done"