How to set up a VM with Python (Miniconda) on MacOS

How-to-setup-VM-with-python-on-macos.md

Requirements

• At least 6-8GB of RAM (of those 4GB will be used for a virtual machine)
• About 3GB of diskspace
• 1-2 hours of time (depends on your network speed)

Environments

• MacOSX 10.14.5
• Homebrew 2.1.6
• VirtualBox 6.0.8
• Vagrant 2.2.4
• CentOS 7.6

Install Homebrew

• https://brew.sh

/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

Install VirtualBox and Vagrant

$ brew cask install virtualbox
$ brew cask install vagrant

Install Vagrant plugins

$ vagrant plugin install vagrant-vbguest

Install a new box (CentOS7)

The following commands download a Vagrant box for CentOS 7 from their server. It takes time.

$ vagrant box add centos/7
Select 3 (VirtualBox)
$ mkdir CentOS7; cd CentOS7
$ vagrant init centos-VAGRANTSLASH-7
$ mv Vagrantfile Vagrantfile.orig

Download the files and save them to CentOS7

• Vagrantfile
• Vagrant_provision.sh

Start a VM

The following command installs CentOS 7 to your virtual machine along with Python. It takes time.

$ vagrant up

Login to VM and check Python version

$ vagrant ssh
[vagrant@localhost ~]$ python -V
Python 3.7.3

Stop VM

[vagrant@localhost ~]$ exit
$ vagrant halt

Vagrant_provision.sh

# Update package
echo "Updating default packages ..."
sudo yum -y update

# Install dev tools
echo "Installing Development tools ..."
sudo yum -y groupinstall base "Development tools"

# Disable SELinux and firewall
echo "Disabling SELinux and firewall ..."
sudo setenforce 0
sudo systemctl stop firewalld
sudo systemctl disable firewalld
sudo sed -i 's/^SELINUX=.*/SELINUX=disabled/g' /etc/sysconfig/selinux

# Install Python
echo "Installing Python ..."
cd
git clone https://github.com/pyenv/pyenv.git ~/.pyenv
echo 'export PYENV_ROOT="$HOME/.pyenv"' >> ~/.bash_profile
echo 'export PATH="$PYENV_ROOT/bin:$PATH"' >> ~/.bash_profile
echo 'eval "$(pyenv init -)"' >> ~/.bash_profile
. ~/.bash_profile
pyenv install miniconda3-latest
pyenv rehash
pyenv global miniconda3-latest

Vagrantfile

# -*- mode: ruby -*-
# vi: set ft=ruby :

# All Vagrant configuration is done below. The "2" in Vagrant.configure
# configures the configuration version (we support older styles for
# backwards compatibility). Please don't change it unless you know what
# you're doing.
Vagrant.configure("2") do |config|
  # The most common configuration options are documented and commented below.
  # For a complete reference, please see the online documentation at
  # https://docs.vagrantup.com.

  # Every Vagrant development environment requires a box. You can search for
  # boxes at https://vagrantcloud.com/search.
  config.vm.box = "centos-VAGRANTSLASH-7"

  # Disable automatic box update checking. If you disable this, then
  # boxes will only be checked for updates when the user runs
  # `vagrant box outdated`. This is not recommended.
  # config.vm.box_check_update = false

  # Create a forwarded port mapping which allows access to a specific port
  # within the machine from a port on the host machine. In the example below,
  # accessing "localhost:8080" will access port 80 on the guest machine.
  # NOTE: This will enable public access to the opened port
  # config.vm.network "forwarded_port", guest: 80, host: 8080

  # Create a forwarded port mapping which allows access to a specific port
  # within the machine from a port on the host machine and only allow access
  # via 127.0.0.1 to disable public access
  # config.vm.network "forwarded_port", guest: 80, host: 8080, host_ip: "127.0.0.1"

  # Create a private network, which allows host-only access to the machine 
  # using a specific IP.
  config.vm.network "private_network", ip: "192.168.33.10"

  # Create a public network, which generally matched to bridged network.
  # Bridged networks make the machine appear as another physical device on
  # your network.
  # config.vm.network "public_network"

  # Share an additional folder to the guest VM. The first argument is
  # the path on the host to the actual folder. The second argument is
  # the path on the guest to mount the folder. And the optional third
  # argument is a set of non-required options.
  # config.vm.synced_folder "../data", "/vagrant_data"

  # Provider-specific configuration so you can fine-tune various
  # backing providers for Vagrant. These expose provider-specific options.
  # Example for VirtualBox:
  #
  config.vm.provider "virtualbox" do |vb|
  #   # Display the VirtualBox GUI when booting the machine
  #   vb.gui = true
  #
  #   # Customize the amount of memory on the VM:
    vb.memory = "4096"
  end
  #
  # View the documentation for the provider you are using for more
  # information on available options.

  # Enable provisioning with a shell script. Additional provisioners such as
  # Puppet, Chef, Ansible, Salt, and Docker are also available. Please see the
  # documentation for more information about their specific syntax and use.
  # config.vm.provision "shell", inline: <<-SHELL
  #   apt-get update
  #   apt-get install -y apache2
  # SHELL
  config.vm.provision "shell", privileged: false, path: "Vagrant_provision.sh"
end