Where to store Ansible host file on Mac OS X

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暗喜
暗喜 2021-01-29 23:12

I am trying to get started with Ansible to provision my Vagrantbox, but I can’t figure out how to deal with host files.

According to the documentation the should be stor

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  • 2021-01-29 23:54

    Here is a description what to do after installing Ansible on Mac, it worked for me: ansible-tips-and-tricks.readthedocs.io

    I downloaded the ansible.cfg file to

    /Users/"yourUser"/.ansible
    

    and afterwards you can edit the ansible.cfg file by uncommenting the

    inventory      = /Users/"yourUser"/.ansible 
    

    line and specifying the path to the ansible folder like shown above. You can create the hosts file in this folder then as well. To try it out locally, you can put

    localhost              ansible_connection=local
    

    in the hosts file and try it out with

    ansible -m ping all
    
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  • 2021-01-29 23:57

    If you use Vagrant's ansible provisioner, Vagrant will automatically generate an Ansible hosts file (called vagrant_ansible_inventory_default) and configure ansible-playbook to use that file. It looks like this:

    # Generated by Vagrant
    
    default ansible_ssh_host=127.0.0.1 ansible_ssh_port=2222
    

    It calls the Vagrant host "default", so your plays should either refer to "default" or "all".

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  • 2021-01-30 00:05

    On Mac i used sudo find / -type d -name "ansible" 2> /dev/null to find it, but i don't have .../ansible/hosts folder from the box, maybe because i installed using brew as i read above, so i created at path/etc/ansible/hosts

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  • 2021-01-30 00:07

    I like to use bash environment variables as my base project is shared with other users. you can simply export ANSIBLE_HOSTS=/pathTo/inventory/ this can be a host file or a directory with multi files.

    You can also use write it in your ~/.bash_profile so its persistent A bunch of other variables can set that way instead of maintaining a conf file for more info check the source in ansible/lib/ansible/constants.py

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  • 2021-01-30 00:10

    While Ansible will try /etc/ansible/hosts by default, there are several ways to tell ansible where to look for an alternate inventory file :

    • use the -i command line switch and pass your inventory file path
    • add inventory = path_to_hostfile in the [defaults] section of your ~/.ansible.cfg configuration file
    • use export ANSIBLE_HOSTS=path_to_hostfile as suggested by DomaNitro in his answer

    Now you don't mention if you want to use the ansible provisionner available in vagrant, or if you want to provision your vagrant host manually.

    Let's go for the Vagrant ansible provisionner first :

    Create a directory (e.g. test), and create a Vagrant file inside :

    Vagrantfile:

    Vagrant.configure("2") do |config|
    
      config.vm.box = "precise64-v1.2"
      config.vm.box_url = "http://files.vagrantup.com/precise64.box"
    
      config.vm.define :webapp do |webapp|
        webapp.vm.hostname = "webapp.local"
        webapp.vm.network :private_network, ip: "192.168.123.2"
        webapp.vm.provider "virtualbox" do |v|
          v.customize ["modifyvm", :id, "--memory", 200, "--name", "vagrant-docs", "--natdnshostresolver1", "on"]
        end
      end
    
      # 
      # Provisionning
      #
      config.vm.provision :ansible do |ansible|
        ansible.playbook = "provision.yml"
        ansible.inventory_path = "hosts"
        ansible.sudo = true
        #
        # Use anible.tags if you want to restrict what `vagrant provision`
        # Here is a list of possible tags
        # ansible.tags = "foo bar"
        #
        # Use ansible.verbose to see detailled output for ansible runs
        # ansible.verbose = 'vvv'
        #
        # Customize your stuff here
        ansible.extra_vars = { 
          some_var: 42,
          foo: "bar",
        }
      end
    end
    

    Now when you run vagrant up (or vagrant provision), Vangrant's ansible provionner will look for a file name hosts in the same directory as Vagrantfile, and will try to apply the provision.yml playbook.

    You can also run it manually, without resorting to Vagrant's ansible provisionner :

    ansible-playbook -i hosts provision.yml --ask-pass --sudo
    

    Note that Vagrant+Virtualbox+Ansible trio does not always get along well. There are some versions combinations that are problematic. Try to upgrade to the latests versions if you experience issues (especially regarding network).

    {shameless_plug} You can find an more extensive example mixing vagrant and ansible here {/shameless_plug}

    Good luck !

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  • 2021-01-30 00:12

    If you used Brew to install Ansible, you'll most likely find the default hosts file at /usr/local/etc/ansible/hosts. But, as others pointed out, you may just want to change the default.

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