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Merge pull request #44 from lowescott/rkt
Finalize rkt learning environment
This commit is contained in:
Scott S. Lowe
commit
35af80fd60
6 changed files with 111 additions and 60 deletions
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# Running Containers with rkt
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These files were created to allow users to use Vagrant ([http://www.vagrantup.com](http://www.vagrantup.com)) quickly and relatively easily experiment with using `rkt` (pronounced "rock-it"), the CoreOS implementation of the App Container (appc) specification. The configuration was tested using Vagrant 1.7.2, VMware Fusion 6.0.5, and the Vagrant VMware plugin.
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**WARNING:** These files are not yet fully functional!
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These files were created to allow users to use Vagrant ([http://www.vagrantup.com](http://www.vagrantup.com)) quickly and relatively easily experiment with using `rkt` (pronounced "rock-it"), the CoreOS implementation of the App Container (appc) specification. The configuration was tested using Vagrant 1.8.1, VMware Fusion 8.1.0, and the Vagrant VMware plugin.
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## Contents
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* **machines.yml**: This YAML file contains a list of VM definitions and associated configuration data. It is referenced by `Vagrantfile` when Vagrant instantiates the VMs. You may need to edit this file to ensure that the correct Vagrant box is listed.
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* **provision.sh**: This shell script is called by the Vagrant shell provisioner and configures `rkt` inside the VM created by Vagrant. No changes should be needed to this file.
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* **README.md**: This file you're currently reading.
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* **servers.yml**: This YAML file contains a list of VM definitions and associated configuration data. It is referenced by `Vagrantfile` when Vagrant instantiates the VMs. No changes should be necessary to use this file.
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* **setup.sh**: This shell script is called by the Vagrant shell provisioner and configures `rkt` inside the VM created by Vagrant. No changes should be needed to this file.
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* **Vagrantfile**: This file is used by Vagrant to spin up the virtual machines. This file is fairly extensively commented to help explain what's happening. You should be able to use this file unchanged; all the VM configuration options are stored outside this file.
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## Instructions
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[NOT YET FUNCTIONAL]
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These instructions assume you've already installed Vagrant, your virtualization provider, and any necessary Vagrant plugins. Please refer to the documentation for those products for more information on installation or configuration.
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1. Use `vagrant box add` to install an Ubuntu 14.04 x64 box for the vmware_fusion provider. I have a base box you can use for this purpose; to use my Ubuntu 14.04 x64 base box, add the box with `vagrant box add slowe/ubuntu-trusty-x64`.
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2. Place the files from the `rkt` directory of this GitHub repository into a directory on your local system. You can clone the entire "learning-tools" repository (using `git clone`) or just download the specific files from the the `rkt` folder.
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3. Verify that the Vagrant box you added in step #1 is the box listed in `machines.yml`. Note there are separate lines for a VMware Fusion-formatted box (on the "vmw_box" line) and a VirtualBox-formatted box (on the "vb_box" line).
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4. If you download the `rkt-v1.4.0.tar.gz` release from GitHub (see [https://github.com/coreos/rkt/releases](https://github.com/coreos/rkt/releases)) and place it in the same directory with the `Vagrantfile` and other files, then the Vagrant provisioning script won't download it from the Internet and will use the local copy instead.
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5. Use `vagrant up` to instantiate the learning environment.
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6. Use `vagrant ssh` to log into the VM created by Vagrant.
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7. Use this command to launch a simple rkt container (follow the prompts as necessary):
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sudo rkt run --interactive quay.io/coreos/alpine-sh
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Enjoy!
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## License
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55
rkt/Vagrantfile
vendored
55
rkt/Vagrantfile
vendored
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# vi: set ft=ruby :
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# Specify Vagrant version, Vagrant API version, and Vagrant clone location
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Vagrant.require_version ">= 1.6.0"
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VAGRANTFILE_API_VERSION = "2"
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Vagrant.require_version '>= 1.6.0'
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VAGRANTFILE_API_VERSION = '2'
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ENV['VAGRANT_VMWARE_CLONE_DIRECTORY'] = '~/.vagrant'
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# Require 'yaml' module
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require 'yaml'
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# Read YAML file with VM details (box, CPU, and RAM)
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servers = YAML.load_file(File.join(File.dirname(__FILE__), 'servers.yml'))
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machines = YAML.load_file(File.join(File.dirname(__FILE__), 'machines.yml'))
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# Create and configure the VMs
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Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
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@ -19,25 +19,40 @@ Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
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config.ssh.insert_key = false
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# Iterate through entries in YAML file to create VMs
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servers.each do |servers|
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config.vm.define servers["name"] do |srv|
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machines.each do |machine|
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config.vm.define machine['name'] do |srv|
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# Don't check for box updates
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srv.vm.box_check_update = false
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srv.vm.hostname = servers["name"]
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srv.vm.box = servers["box"]
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# Enable default synced folder
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srv.vm.synced_folder ".", "/vagrant"
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# Perform final provisioning activities
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#srv.vm.provision "shell", path: "config.sh", privileged: true
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#srv.vm.provision "file", source: "adminrc", destination: "/home/vagrant/adminrc"
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# Set VM hostname and Vagrant box to use (default to VMware box)
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srv.vm.hostname = machine['name']
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srv.vm.box = machine['vmw_box']
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# Configure VMs with RAM and CPUs per settings in servers.yml
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srv.vm.provider :vmware_fusion do |vmw|
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vmw.vmx["memsize"] = servers["ram"]
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vmw.vmx["numvcpus"] = servers["vcpu"]
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end
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end
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end
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end
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# Disable default synced folder
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srv.vm.synced_folder '.', '/vagrant', disabled: true
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# If it exists, copy the rkt download into the Vagrant VM
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if File.file?(File.join(File.dirname(__FILE__), 'rkt-v1.4.0.tar.gz'))
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srv.vm.provision 'file', source: 'rkt-v1.4.0.tar.gz',
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destination: '/home/vagrant/rkt-v1.4.0.tar.gz'
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end # if File.file?(rkt)
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# Run the provisioning shell script
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srv.vm.provision 'shell', path: 'provision.sh'
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# Configure VMs with RAM and CPUs per machines.yml (Fusion)
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srv.vm.provider 'vmware_fusion' do |vmw|
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vmw.vmx['memsize'] = machine['ram']
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vmw.vmx['numvcpus'] = machine['vcpu']
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end # srv.vm.provider 'vmware_fusion'
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# Configure the VM with RAM and CPUs per machines.yml (VirtualBox)
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srv.vm.provider 'virtualbox' do |vb, override|
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vb.memory = machine['ram']
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vb.cpus = machine['vcpu']
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override.vm.box = machine['vb_box']
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end # srv.vm.provider 'virtualbox'
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end # config.vm.define
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end # machines.each
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end # Vagrant.configure
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6
rkt/machines.yml
Normal file
6
rkt/machines.yml
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---
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- name: rkt-01
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vmw_box: slowe/ubuntu-trusty-x64
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vb_box: ubuntu/trusty64
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ram: 512
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vcpu: 1
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46
rkt/provision.sh
Executable file
46
rkt/provision.sh
Executable file
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#!/bin/bash
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# Set some variables for later
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VER="1.4.0"
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URL="https://github.com/coreos/rkt/releases/download"
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FILE="rkt-v$VER.tar.gz"
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DIR="rkt-v$VER"
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# Install curl if needed
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if [[ ! -e /usr/bin/curl ]]; then
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apt-get update
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apt-get -yqq install curl
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fi
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# Download the rkt tarball if it doesn't already exist
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if [[ ! -e /home/vagrant/$FILE ]]; then
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# Download files for rkt
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curl -LO $URL/v$VER/rkt-v$VER.tar.gz
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fi
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# If the rkt binary is in /usr/local/bin, assume the system is provisioned
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if [[ ! -e /usr/local/bin/rkt ]]; then
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# Unpack the downloaded file
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tar xzvf $FILE
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# Move rkt to /usr/local/bin and ensure it is executable
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cd $DIR
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sudo mv rkt /usr/local/bin/
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sudo chmod a+x /usr/local/bin/rkt
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# Move ACI files to /usr/local/bin
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sudo mv stage1-coreos.aci /usr/local/bin/
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sudo mv stage1-fly.aci /usr/local/bin/
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sudo mv stage1-kvm.aci /usr/local/bin/
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# Create working directory for rkt
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sudo mkdir -p /var/lib/rkt
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# Create rkt group if it doesn't already exist
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[ $(getent group rkt) ] || sudo groupadd rkt
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# Remove directory created by unpacking tarball
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# Leave tarball in place (indicates provisioned system)
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cd ..
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rm -rf rkt-v$VER
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fi
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---
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- name: rkt-01
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box: slowe/ubuntu-trusty-x64
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ram: 512
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vcpu: 1
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27
rkt/setup.sh
27
rkt/setup.sh
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#!/bin/bash
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# Download rkt from GitHub
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wget https://github.com/coreos/rkt/releases/download/v0.5.5/rkt-v0.5.5.tar.gz
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# Unpack the rkt files and move to final destination
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tar xzvf rkt-v0.5.5.tar.gz
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cd rkt-v0.5.5
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sudo mv rkt /usr/local/bin/
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sudo mv stage1.aci /usr/local/bin/
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rm -rf rkt-v0.5.5
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# Create a rkt user and group
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sudo useradd -M -d /var/lib/rkt -r -s /usr/bin/nologin rkt
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# Add default vagrant user to rkt group
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sudo usermod -G rkt -a vagrant
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# Set up directories for rkt
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sudo mkdir -p /var/lib/rkt
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sudo chown -R rkt:rkt /var/lib/rkt
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sudo chmod -R 0775 /var/lib/rkt
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sudo chmod -R g+s /var/lib/rkt
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sudo mkdir -p /etc/rkt
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sudo chown -R rkt:rkt /etc/rkt
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sudo chmod -R 0775 /etc/rkt
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sudo chmod -R g+s /etc/rkt
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