SkypLabs / packer-centos

Create CentOS images for different hypervisors with Packer

Packer CentOS

This repository contains files used by Packer to create CentOS images for different hypervisors.

Hypervisors supported

• VirtualBox (vbox)
• VMware (vmware)
• KVM (kvm)

Vagrant support

In order to create an image to be used with Vagrant, you need to use one of these builders:

• vbox4vagrant
• vmware4vagrant
• kvm4vagrant

Variables available

Optional variables and their defaults:

  build_number      = {{timestamp}}
  centos_arch       = x86_64
  disk_size         = 10000
  headless          = true
  iso_base_url      = http://ftp.heanet.ie/pub/centos
  iso_checksum_type = sha256
  password          = password
  timeout           = 30m
  username          = root

In addition, several variable files are available to precise which version of CentOS should be used via the Packer -var-file option.

Use this template behind a proxy

In order to use this template behind an explicit proxy, you need to add this last one in some files:

• In the kickstart file:

    url --mirrorlist="http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os" --proxy=<explicit proxy>
  

• In the *-tools.sh scripts, you need to add an option to the yum command:

    # Install dependencies
    yum --setopt=proxy=<explicit proxy> install -y ...
  

• In the vagrant.sh script, before the curl command:

    # Download the insecure public key from GitHub official repository
    export https_proxy=<explicit proxy>
    curl \
        --location \
        --output /home/vagrant/.ssh/authorized_keys \
        https://github.com/mitchellh/vagrant/raw/master/keys/vagrant.pub
  

Examples

To create an image of CentOS 7 with all the hypervisors, including Vagrant images:

packer build -var-file centos7.json packer-centos.json

To create an image of CentOS 6 with all the hypervisors, including Vagrant images:

packer build -var-file centos6.json packer-centos.json

To create a Vagrant CentOS 7 image only with VirtualBox and overwrite some default variables' value (here, headless and timeout):

packer build -only vbox4vagrant -var 'headless=false' -var 'timeout=1h' -var-file centos7.json packer-centos.json

License

MIT