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authorJenkins <jenkins@review.openstack.org>2015-07-31 21:16:49 +0000
committerGerrit Code Review <review@openstack.org>2015-07-31 21:16:49 +0000
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+Vagrant up!
+============================
+
+This guide describes how to use [Vagrant][] to assist in developing for Kolla.
+
+Vagrant is a tool to assist in scripted creation of virtual machines, it will
+take care of setting up a CentOS-based cluster of virtual machines, each with
+proper hardware like memory amount and number of network interfaces.
+
+[Vagrant]: http://vagrantup.com
+
+
+Getting Started
+---------------
+
+The vagrant setup will build a cluster with the following nodes:
+
+- 3 support nodes
+- 1 compute node
+- 1 operator node
+
+Kolla runs from the operator node to deploy OpenStack on the other nodes.
+
+All nodes are connected with each other on the secondary nic, the primary nic
+is behind a NAT interface for connecting with the internet. A third nic is
+connected without IP configuration to a public bridge interface. This may be
+used for Neutron/Nova to connect to instances.
+
+Start with downloading and installing the Vagrant package for your distro of
+choice. Various downloads can be found [here][]. After we will install the
+hostmanager plugin so all hosts are recorded in /etc/hosts (inside each vm):
+
+ vagrant plugin install vagrant-hostmanager
+
+Vagrant supports a wide range of virtualization technologies, of which we will
+use VirtualBox for now.
+
+Find some place in your homedir and checkout the Kolla repo
+
+ git clone https://github.com/stackforge/kolla.git ~/dev/kolla
+
+You can now tweak the Vagrantfile or start a CentOS7-based cluster right away:
+
+ cd ~/dev/kolla/vagrant && vagrant up
+
+The command `vagrant up` will build your cluster, `vagrant status` will give
+you a quick overview once done.
+
+[here]: https://www.vagrantup.com/downloads.html
+
+Vagrant Up
+---------
+
+Once vagrant has completed deploying all nodes, we can focus on launching Kolla.
+First, connect with the _operator_ node:
+
+ vagrant ssh operator
+
+Once connected you can run a simple Ansible-style ping to verify if the cluster is operable:
+
+ ansible -i kolla/ansible/inventory/multinode all -m ping -e ansible_ssh_user=root
+
+Congratulations, your cluster is usable and you can start deploying OpenStack using Ansible!
+
+To speed things up, there is a local registry running on the operator. All nodes are configured
+so they can use this insecure repo to pull from, and they will use it as mirror. Ansible may
+use this registry to pull images from.
+
+All nodes have a local folder shared between the group and the hypervisor, and a folder shared
+between _all_ nodes and the hypervisor. This mapping is lost after reboots, so make sure you use
+the command `vagrant reload <node>` when reboots are required. Having this shared folder you
+have a method to supply a different docker binary to the cluster. The shared folder is also
+used to store the docker-registry files, so they are save from destructive operations like
+`vagrant destroy`.
+
+Further Reading
+---------------
+
+All Vagrant documentation can be found on their [website][].
+
+[website]: http://docs.vagrantup.com