# Vagrant + Multiple Machines + Ansible **URL:** \ **Category:** Ansible Project\ **Created:** [March 12, 2015, 11:58am UTC](https://forum.ansible.com/t/vagrant-multiple-machines-ansible/17728 "2015-03-12T11:58:39Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Ruben\_Ortiz](https://avatars.discourse-cdn.com/v4/letter/r/a9a28c/32.png) [@Ruben\_Ortiz](https://forum.ansible.com/u/Ruben_Ortiz)\ **Post date:** [March 12, 2015, 11:58am UTC](https://forum.ansible.com/t/vagrant-multiple-machines-ansible/17728/1 "2015-03-12T11:58:39Z")
Hi I’m trying to write playbook to deploy automatically a Galera Cluster. I’ve been googling before ask help and I found some interesting info about Vagrantfile and multi machine scenario. My main problem is until now I have never worked with vagrant multiple machines (3 nodes) and Ansible. I just want to deploy 3 nodes with Vagrant and then make the provision with Ansible. My current code does well the easies part of the work - 3 nodes are deployed with Vagrantfile: [https://gist.github.com/rubendob/ed0d756bd1b3dc00dd2b](https://gist.github.com/rubendob/ed0d756bd1b3dc00dd2b) - then I run playbook.yml to do some task, by now are just few: install percona key, update cache and install pxc into each node the problem I have is I don’t know how set some variables into my.cnf.j2 jinja template wsrep\_node\_address = {{ ansible\_eth1.ipv4.address }} bind\_address = {{ galera\_conf[‘bind\_address’] }} for example, I have no problem with this two variables, one is a fact and other I have it on defaults/main.yml but what about this one? wsrep\_cluster\_address = gcomm://ip1,ip2,ip3 I just don’t know how to setup this parameter. Do I have to use groups of inventory file? Where I can find the values of my galera cluster nodes? From inventory? From Vagrantfile? And how I can make to ansible write it in a right way? Thanks ---
**Author:** ![jorginator74](https://avatars.discourse-cdn.com/v4/letter/j/f19dbf/32.png) [@jorginator74](https://forum.ansible.com/u/jorginator74)\ **Post date:** [March 12, 2015, 4:26pm UTC](https://forum.ansible.com/t/vagrant-multiple-machines-ansible/17728/2 "2015-03-12T16:26:15Z")
If you use a group in the inventory file, e.g. named 'cluster', then your template could contain something like this: wsrep\_cluster\_address=gcomm://{% for host in groups['cluster'] %}{% if not loop.first %},{% endif %}{{ hostvars[host]['wsrep\_node\_address'] }}{% endfor %} Hope this helps ---
**Author:** ![James\_Martin1](https://avatars.discourse-cdn.com/v4/letter/j/0ea827/32.png) [@James\_Martin1](https://forum.ansible.com/u/James_Martin1)\ **Post date:** [March 12, 2015, 4:29pm UTC](https://forum.ansible.com/t/vagrant-multiple-machines-ansible/17728/3 "2015-03-12T16:29:52Z")
First, see the “Tips and Tricks” section here about using ansible with parallel execution in Vagrant: [http://docs.vagrantup.com/v2/provisioning/ansible.html](http://docs.vagrantup.com/v2/provisioning/ansible.html). You’ll need to do the provisioning this way to properly collect facts on all the machines. Let’s say you had a group called “cluster” that contained servers 1, 2, and 3. To generate the variable for wsrep\_cluster\_address, you would have to do something like: ` {% set iface = ‘ansible\_eth1’ %} wsrep\_cluster\_address = gcomm://{% for server in groups[“cluster”] %}{{ hostvars[server][iface].ipv4.address }}{% if not loop.last %},{% endif %}{% endfor %} ` The first line I’m setting a a jinja2 variable of the interface that holds the IP I want to use, just for convenience. The second line is the magic – I’m doing a for loop through my cluster inventory group, and for each host I’m printing the interface, separating each IP by a comma unless it’s the last host, then I don’t want to use a comma. - James ---
**Author:** ![Ruben\_Ortiz](https://avatars.discourse-cdn.com/v4/letter/r/a9a28c/32.png) [@Ruben\_Ortiz](https://forum.ansible.com/u/Ruben_Ortiz)\ **Post date:** [March 12, 2015, 4:44pm UTC](https://forum.ansible.com/t/vagrant-multiple-machines-ansible/17728/4 "2015-03-12T16:44:53Z")
Hi guys thanks a lot, I’d never been able to reach this solution without help. I will try to put all this together to see if it works and update post as soon as possible! Thanks again ---
**Author:** ![Ruben\_Ortiz](https://avatars.discourse-cdn.com/v4/letter/r/a9a28c/32.png) [@Ruben\_Ortiz](https://forum.ansible.com/u/Ruben_Ortiz)\ **Post date:** [March 17, 2015, 3:22pm UTC](https://forum.ansible.com/t/vagrant-multiple-machines-ansible/17728/5 "2015-03-17T15:22:46Z")
Hi! wow, I was reading about the subject of dynamic inventory. Actually it is my first time with a setup so complex. My Vagrantfile is (based on work of one guy, I don’t remember now the link of github, apologies): _# -- mode: ruby --_ _# vi: set ft=ruby :_ _# Vagrantfile API/syntax version. Don’t touch unless you know what you’re doing!_ _VAGRANTFILE\_API\_VERSION = “2”_ _cluster = {_ _“node1” =\> { :ip =\> “192.168.33.50”, :cpus =\> 1, :mem =\> 1024 },_ _“node2” =\> { :ip =\> “192.168.33.51”, :cpus =\> 1, :mem =\> 1024 },_ _“node3” =\> { :ip =\> “192.168.33.52”, :cpus =\> 1, :mem =\> 1024 },_ _}_ _Vagrant.configure(VAGRANTFILE\_API\_VERSION) do |config|_ _#config.vm.box = “nrel/CentOS-6.5-x86\_64”_ _#config.vm.box = “ubuntu/precise64”_ _cluster.each\_with\_index do |(hostname, info), index|_ _config.vm.define hostname do |cfg|_ _cfg.vm.provider :virtualbox do |vb, override|_ _config.vm.box = “ubuntu/precise64”_ _override.vm.network :private\_network, ip: “#{info[:ip]}”_ _override.vm.hostname = hostname_ _vb.name = ‘pxc-’ + hostname_ _vb.customize [“modifyvm”, :id, “–memory”, info[:mem], “–cpus”, info[:cpus], “–hwvirtex”, “on” ]_ _end # end provider_ _# provision nodes with ansible_ _if index == cluster.size - 1_ _cfg.vm.provision :ansible do |ansible|_ _#ansible.verbose = “vvvv”_ _ansible.extra\_vars = { ansible\_ssh\_user: ‘vagrant’ }_ _ansible.inventory\_path = “./inventory”_ _ansible.playbook = “playbook.yml”_ _ansible.limit = “local”_ _end # end provision_ _end #end if_ _end # end config_ _end # end cluster_ _end # end vagrant_ I don’t know if it is the better way to do it, but at least it is the only one that worked for me. I run a loop to provision all machines and then I run playbook.yml. Then in my inventory I have: [local] node1 ansible\_ssh\_host=192.168.33.50 node2 ansible\_ssh\_host=192.168.33.51 node3 ansible\_ssh\_host=192.168.33.52 son in my template I finally wrote: % set iface = ‘ansible\_eth1’ %} wsrep\_cluster\_address = gcomm://{% for server in groups[“local”] %}{{ hostvars[server][iface].ipv4.address }}{% if not loop.last %},{% endif %}{% endfor %} And worked perfectly! Thanks a lot guys!