143 lines
6.3 KiB
Markdown
143 lines
6.3 KiB
Markdown
---
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layout: "docs"
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page_title: "Ansible - Provisioning"
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sidebar_current: "provisioning-ansible"
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description: |-
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The Vagrant Ansible provisioner allows you to provision the guest using
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Ansible playbooks by executing "ansible-playbook" from the Vagrant host.
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---
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# Ansible Provisioner
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**Provisioner name: `ansible`**
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The Vagrant Ansible provisioner allows you to provision the guest using [Ansible](http://ansible.com) playbooks by executing **`ansible-playbook` from the Vagrant host**.
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<div class="alert alert-warning">
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<strong>Warning:</strong> If you are not familiar with Ansible and Vagrant already,
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I recommend starting with the <a href="/docs/provisioning/shell.html">shell
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provisioner</a>. However, if you are comfortable with Vagrant already, Vagrant
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is a great way to learn Ansible.
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</div>
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## Setup Requirements
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- **[Install Ansible](https://docs.ansible.com/intro_installation.html#installing-the-control-machine) on your Vagrant host**.
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- Your Vagrant host should ideally provide a recent version of OpenSSH that [supports ControlPersist](https://docs.ansible.com/faq.html#how-do-i-get-ansible-to-reuse-connections-enable-kerberized-ssh-or-have-ansible-pay-attention-to-my-local-ssh-config-file).
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If installing Ansible directly on the Vagrant host is not an option in your development environment, you might be looking for the <a href="/docs/provisioning/ansible_local.html">Ansible Local provisioner</a> alternative.
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## Usage
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This page only documents the specific parts of the `ansible` (remote) provisioner. General Ansible concepts like Playbook or Inventory are shortly explained in the [introduction to Ansible and Vagrant](/docs/provisioning/ansible_intro.html).
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### Simplest Configuration
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To run Ansible against your Vagrant guest, the basic `Vagrantfile` configuration looks like:
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```ruby
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Vagrant.configure("2") do |config|
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#
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# Run Ansible from the Vagrant Host
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#
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config.vm.provision "ansible" do |ansible|
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ansible.playbook = "playbook.yml"
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end
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end
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```
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## Options
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This section lists the specific options for the Ansible (remote) provisioner. In addition to the options listed below, this provisioner supports the [common options for both Ansible provisioners](/docs/provisioning/ansible_common.html).
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- `ask_sudo_pass` (boolean) - require Ansible to [prompt for a sudo password](https://docs.ansible.com/intro_getting_started.html#remote-connection-information).
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The default value is `false`.
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- `ask_vault_pass` (boolean) - require Ansible to [prompt for a vault password](https://docs.ansible.com/playbooks_vault.html#vault).
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The default value is `false`.
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- `force_remote_user` (boolean) - require Vagrant to set the `ansible_ssh_user` setting in the generated inventory, or as an extra variable when a static inventory is used. All the Ansible `remote_user` parameters will then be overridden by the value of `config.ssh.username` of the [Vagrant SSH Settings](/docs/vagrantfile/ssh_settings.html).
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If this option is set to `false` Vagrant will set the Vagrant SSH username as a default Ansible remote user, but `remote_user` parameters of your Ansible plays or tasks will still be taken into account and thus override the Vagrant configuration.
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The default value is `true`.
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**Note:** This option was introduced in Vagrant 1.8.0. Previous Vagrant versions behave like if this option was set to `false`.
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- `host_key_checking` (boolean) - require Ansible to [enable SSH host key checking](https://docs.ansible.com/intro_getting_started.html#host-key-checking).
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The default value is `false`.
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- `raw_ssh_args` (array of strings) - require Ansible to apply a list of OpenSSH client options.
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Example: `['-o ControlMaster=no']`.
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It is an *unsafe wildcard* that can be used to pass additional SSH settings to Ansible via `ANSIBLE_SSH_ARGS` environment variable, overriding any other SSH arguments (e.g. defined in an [`ansible.cfg` configuration file](https://docs.ansible.com/intro_configuration.html#ssh-args)).
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## Tips and Tricks
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### Ansible Parallel Execution
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Vagrant is designed to provision [multi-machine environments](/docs/multi-machine) in sequence, but the following configuration pattern can be used to take advantage of Ansible parallelism:
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```ruby
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# Vagrant 1.7+ automatically inserts a different
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# insecure keypair for each new VM created. The easiest way
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# to use the same keypair for all the machines is to disable
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# this feature and rely on the legacy insecure key.
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# config.ssh.insert_key = false
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#
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# Note:
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# As of Vagrant 1.7.3, it is no longer necessary to disable
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# the keypair creation when using the auto-generated inventory.
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N = 3
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(1..N).each do |machine_id|
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config.vm.define "machine#{machine_id}" do |machine|
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machine.vm.hostname = "machine#{machine_id}"
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machine.vm.network "private_network", ip: "192.168.77.#{20+machine_id}"
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# Only execute once the Ansible provisioner,
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# when all the machines are up and ready.
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if machine_id == N
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machine.vm.provision :ansible do |ansible|
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# Disable default limit to connect to all the machines
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ansible.limit = "all"
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ansible.playbook = "playbook.yml"
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end
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end
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end
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end
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```
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**Caveats:**
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If you apply this parallel provisioning pattern with a static Ansible inventory, you will have to organize the things so that [all the relevant private keys are provided to the `ansible-playbook` command](https://github.com/mitchellh/vagrant/pull/5765#issuecomment-120247738). The same kind of considerations applies if you are using multiple private keys for a same machine (see [`config.ssh.private_key_path` SSH setting](/docs/vagrantfile/ssh_settings.html)).
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### Force Paramiko Connection Mode
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The Ansible provisioner is implemented with native OpenSSH support in mind, and there is no official support for [paramiko](https://github.com/paramiko/paramiko/) (A native Python SSHv2 protocol library).
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If you really need to use this connection mode though, it is possible to enable paramiko as illustrated in the following configuration examples:
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With auto-generated inventory:
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```
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ansible.raw_arguments = ["--connection=paramiko"]
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```
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With a custom inventory, the private key must be specified (e.g. via an `ansible.cfg` configuration file, `--private-key` argument, or as part of your inventory file):
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```
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ansible.inventory_path = "./my-inventory"
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ansible.raw_arguments = [
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"--connection=paramiko",
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"--private-key=/home/.../.vagrant/machines/.../private_key"
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]
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```
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