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Ansible and Vagrant A love story AnsibleFest London, 2015 http://pixabay.com/get/f72f42c0c92d9ee12bc3/1422473642/cloud-600224_1920.jpg @Sgoettschkes

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http://pixabay.com/get/5c603ff58720250803c9/1422648022/forest-438432_1280.jpg

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http://pixabay.com/get/3489448873097c5aa562/1422648090/apple-195628_1280.jpg

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“It works on my machine”

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“It’s all in SETUP.md”

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Enter vagrant

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Building blocks Configuration + Provider + Base Boxes + Provisioner + Plugins = Vagrant http://pixabay.com/static/uploads/photo/2010/12/10/08/salad-1105_640.jpg

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Configuration Vagrant.configure(2) do |config| config.vm.box = "Sgoettschkes/debian7-ansible" config.vm.network "private_network", ip: "127.0.0.101" config.vm.synced_folder "../", "/srv/workspace" config.vm.provision "ansible" do |ansible| ansible.playbook = "playbook.yml" end end

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Providers

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Base Boxes Base Boxes ● Image from VM ● Provider-specific ● Distribution through ○ HTTP ○ “Atlas” http://upload.wikimedia.org/wikipedia/commons/9/91/Shipping_containers_at_Clyde.jpg

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Provisioners

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Provisioners

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Plugins # AWS provider $ vagrant plugin install vagrant-aws # Boxen provisioner $ vagrant plugin install ventriloquist # Executing on the host $ vagrant plugin install vagrant-hostmanager # Executing on the guest $ vagrant plugin install vagrant-camera

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Synced folders http://upload.wikimedia.org/wikipedia/commons/5/5d/BalticServers_data_center.jpg # Vagrantfile config.vm.synced_folder "~/local/path/to/project", # on host "/opt/project" # on guest

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SSH http://pixabay.com/static/uploads/photo/2013/04/08/22/48/tunnel-101976_640.jpg $ vagrant ssh # or $ ssh -p 2222 vagrant@localhost # with password “vagrant”

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Example $ tree . |-- .git |-- .vagrant |-- playbook.yml |-- Vagrantfile

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Example $ cat Vagrantfile Vagrant.configure(2) do |config| config.vm.box = "Sgoettschkes/debian7-ansible" config.vm.network "private_network", ip: "127.0.0.101" config.vm.provision "ansible" do |ansible| ansible.playbook = "playbook.yml" end end

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Example $ cat Vagrantfile Vagrant.configure(2) do |config| config.vm.box = "Sgoettschkes/debian7-ansible" config.vm.network "private_network", ip: "127.0.0.101" config.vm.provision "ansible" do |ansible| ansible.playbook = "playbook.yml" end end

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Example $ cat Vagrantfile Vagrant.configure(2) do |config| config.vm.box = "Sgoettschkes/debian7-ansible" config.vm.network "private_network", ip: "127.0.0.101" config.vm.provision "ansible" do |ansible| ansible.playbook = "playbook.yml" end end

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Example $ cat Vagrantfile Vagrant.configure(2) do |config| config.vm.box = "Sgoettschkes/debian7-ansible" config.vm.network "private_network", ip: "127.0.0.101" config.vm.provision "ansible" do |ansible| ansible.playbook = "playbook.yml" end end

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Example $ cat playbook.yml --- hosts: all tasks: - name: update apt apt: update_cache=yes - name: install git apt: pkg=git state=latest

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More dependencies, anyone? https://www.dropbox.com/s/xdeyi95buvofdxy/169H.jpg

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Better example $ tree . |-- .git |-- .vagrant |-- hosts |-- playbook.yml |-- Vagrantfile

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Better example $ tree . |-- .git |-- .vagrant |-- hosts |-- playbook.yml |-- Vagrantfile

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Better example $ cat hosts localhost ansible_connection=local

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Better example Vagrant.configure(2) do |config| # ... config.vm.provision "shell", inline: "cp /vagrant/hosts /etc/ansible/hosts" if Vagrant.has_plugin?("vagrant-ansible-local”) config.vm.provision "ansibleLocal", playbook: "playbook.yml" else config.vm.provision "shell", inline: "ansible-playbook /vagrant/playbook.yml" end

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Better example Vagrant.configure(2) do |config| # ... config.vm.provision "shell", inline: "cp /vagrant/hosts /etc/ansible/hosts" if Vagrant.has_plugin?("vagrant-ansible-local”) config.vm.provision "ansibleLocal", playbook: "playbook.yml" else config.vm.provision "shell", inline: "ansible-playbook /vagrant/playbook.yml" end

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Better example Vagrant.configure(2) do |config| # ... config.vm.provision "shell", inline: "cp /vagrant/hosts /etc/ansible/hosts" if Vagrant.has_plugin?("vagrant-ansible-local”) config.vm.provision "ansibleLocal", playbook: "playbook.yml" else config.vm.provision "shell", inline: "ansible-playbook /vagrant/playbook.yml" end

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Better example Vagrant.configure(2) do |config| # ... config.vm.provision "shell", inline: "cp /vagrant/hosts /etc/ansible/hosts" if Vagrant.has_plugin?("vagrant-ansible-local”) config.vm.provision "ansibleLocal", playbook: "playbook.yml" else config.vm.provision "shell", inline: "ansible-playbook /vagrant/playbook.yml" end

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http://freehddesktopwallpaper.info/wp-content/uploads/2013/06/Blue-Flowers-hd-Wallpapers.jpg Basic workflow

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Basic workflow $ vagrant init Sgoettschkes/debian7-ansible $ vagrant up # box is booting $ vagrant ssh # It’s actually a normal, headless VM! $ exit

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Basic workflow $ vim Vagrantfile # change config # add provisioners and so on $ git init $ git commit -Am ‘I am using Vagrant now!’ # Keep the Vagrantfile and files needed for provisioning # in git (or any other scm) to share with others

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Basic workflow $ git clone [email protected]:awesomecompany/awesomeVm.git $ cd awesomeVm && vagrant up # VM is setup the same as on your co-workers machine # You can now work on your project

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Basic workflow # Co-worker updated Vagrantfile/provisioning files $ git pull --rebase $ vagrant provision # VM is up to date again

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Basic workflow # You wanna change some Vagrant related stuff $ vim Vagrantfile # Change it! $ vim playbook.yml # Change something here as well, maybe? $ vagrant provision # Your box is up to date again $ git commit -am ‘Incredible changes’ && git push

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http://www.gratisography.com/pictures/114_1.jpg Playbook testing?

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Testing playbooks Vagrant.configure(2) do |config| config.vm.box = "Sgoettschkes/debian7" config.vm.define "web1" do |web1| web1.vm.network "private_network", ip: "192.168.1.150" end config.vm.define "db1" do |db1| db.vm.network "private_network", ip: "192.168.1.151" end end

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Testing playbooks Vagrant.configure(2) do |config| config.vm.box = "Sgoettschkes/debian7" config.vm.define "web1" do |web1| web1.vm.network "private_network", ip: "192.168.1.150" end config.vm.define "db1" do |db1| db.vm.network "private_network", ip: "192.168.1.151" end end

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Testing playbooks Vagrant.configure(2) do |config| config.vm.box = "Sgoettschkes/debian7" config.vm.define "web1" do |web1| web1.vm.network "private_network", ip: "192.168.1.150" end config.vm.define "db1" do |db1| db.vm.network "private_network", ip: "192.168.1.151" end end

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Testing playbooks $ cat testing [webservers] 192.168.1.150 ansible_ssh_user=vagrant ansible_ssh_private_key=path/to/key [dbservers] 192.168.1.151 ansible_ssh_user=vagrant ansible_ssh_private_key=path/to/key

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Testing playbooks $ cat testing [webservers] 192.168.1.150 ansible_ssh_user=vagrant ansible_ssh_private_key=path/to/key [dbservers] 192.168.1.151 ansible_ssh_user=vagrant ansible_ssh_private_key=path/to/key

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Testing playbooks $ cat testing [webservers] 192.168.1.150 ansible_ssh_user=vagrant ansible_ssh_private_key=path/to/key [dbservers] 192.168.1.151 ansible_ssh_user=vagrant ansible_ssh_private_key=path/to/key

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Testing playbooks $ vagrant destroy --force && vagrant up # Now you have freshly setup machines # Run your playbooks like you would for staging/production $ ansible-playbook -i testing site.yml # Maybe run a testscript $ ./test_setup.sh

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https://www.dropbox.com/s/mfmusz1qjotilbs/2H.jpg Best practices

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Base Boxes The fewer, the better

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Provisioning Idempotent

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Provisioning One step

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Provisioning # Bad: $ vagrant up $ install software x $ run script y $ create z

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Provisioning # Good: $ vagrant up

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Vms per Developer The fewer, the better (again)

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http://nos.twnsnd.co/image/108652898544 What else is there?

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Vagrant share $ vagrant share # Your VM is now accessible through a public url # You can go back doing awesome work!

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Vagrant push config.push.define "ftp" do |push| push.dir = "/srv/workspace" push.host = "ftp.awesomeCompany.com" end

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Vagrant push config.push.define "local-exec" do |push| push.script = "deploy.sh" end

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Vagrant “Development environments made easy” http://fc02.deviantart.net/fs50/i/2009/315/4/c/Tweaked_toy_airplane_by_afd.jpg

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https://www.dropbox.com/s/6z5aiwa8l09g2pa/86H.jpg