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Dependency installation steps for Ubuntu 18.04.x LTS (Bionic Beaver)

This document assumes you are starting from a fresh install of Ubuntu in the 18.04.x series.

Install Git, VirtualBox, and rng-tools

$ sudo apt install git virtualbox rng-tools

Install Vagrant 2.0.3 or higher

As of this writing, the vagrant version that Ubuntu 18.04 uses is 2.0.2 so we suggest a later release in the 2.0.x series.

wget -c https://releases.hashicorp.com/vagrant/2.2.4/vagrant_2.2.4_x86_64.deb
sudo dpkg -i vagrant_2.2.4_x86_64.deb
rm vagrant_2.2.4_x86_64.deb

Most recently tested 2019-03-26 with the following vagrant release:

$ vagrant --version
Vagrant 2.2.4

Choice: Install Ansible via apt now or pip later

You can install ansible to a system-wide location using Ubuntu's apt tool, which will be a less current version, with infrequent updates, or choose another method described later to install it via a python package in a project-local virtual environment. The apt method is a bit easier, while the python method is ansible's native distribution channel and will be more current and more frequently updated.

If you choose the apt option, run this command:

$ sudo apt install ansible

If you choose the python/pip option, run this command:

$ sudo apt install python3-venv

Install direnv (Optional/Recommended)

This tool sets and unsets environment variables as you change directories in a shell session, providing a convenient facility for setting up project-specific configuration.

sudo apt install direnv

To activate direnv when starting bash (the default shell on Ubuntu 18.04), add the following line to the end of ~/.bashrc:

eval "$(direnv hook bash)"

direnv works by incorporating a call to _direnv_hook in the PROMPT_COMMAND shell variable. You can check that this was done by starting a new bash session and checking whether that value is present:

$ echo $PROMPT_COMMAND
_direnv_hook;

direnv also supports several other shells -- zsh, fish, tcsh, and elvish as of this writing. Its website includes instructions for enabling each of the shells it supports.

Versions

Most recently tested 2018-03-26 with the following versions:

Ubuntu

$ lsb_release --description
Description:	Ubuntu 18.04 LTS

Git

$ git --version
git version 2.17.1

VirtualBox

$ virtualbox --help
Oracle VM VirtualBox Manager 5.2.18_Ubuntu
...

Ansible

$ ansible --version
ansible 2.5.1
[...]

direnv

$ direnv --help
direnv v2.15.0
[...]

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