I recently had to pack a project with Reprozip where all the dependencies can be nicely preserved. Reprozip uses ptrace and thus only works on Linux, which means I had to set up a linux environment on my Mac. I mean, you can’t call yourself a software engineer without having a Linux (virtual) machine, can you?! 😓
In case someone out there are faced with the same task, I’ve documented my setup process in this post.
macOS Catalina 10.15.1
Install VirtualBox Or Equivalent
Vagrant needs VirtualBox to run.
Download installer here: https://www.virtualbox.org/wiki/Downloads
If the installer failed, you may need to enable its kernel extension in: System Preferences → Security & Privacy → General
Install Vagrant Or Equivalent
Download the installer for MacOS from https://www.vagrantup.com/downloads.html.
Click, install, done.
$ vagrant init hashicorp/bionic64
Set up VM:
$ vagrant up
After running the above two commands, you will have a fully running virtual machine in VirtualBox running Ubuntu 12.04 LTS 64-bit.
ssh into VM
$ vagrant ssh
Set up virtualenv
IMPORTANT: make sure to run an update on the package index in the VM before procedding:
$ sudo apt update
$ sudo apt install virtualenv
check if installation was successful:
$ virtualenv --version
create an env
$ virtualenv -p /usr/bin/python <name>
activate an env
$ source DBenv/bin/activate
Install Pre-reqs For Reprozip
$ sudo apt-get install python-dev $ sudo apt-get install python-pip $ sudo apt-get install sqlite3 $ sudo apt-get install libsqlite3-dev
Finally, Install Reprozip
$ pip install reprozip $ pip install reprounzip
Bring The Executable Into The Environment For Packaging
In order to use
scp, we need to install a plugin:
$ vagrant plugin install vagrant-scp
Note that this goes from local to linux:
$ vagrant scp <local_path> [vm_name]:<remote_path>
More about how scp in/out of a Vagrant VM: https://github.com/invernizzi/vagrant-scp.
In case you didn’t know your [vm_name] just like myself, here’s how you track it down:
$ vagrant status
Run Trace and Pack
We’ll first trace all the system calls in execution by using Reprozip trace command:
$ reprozip trace <command>
$ reprozip pack <pack-name>
It gives an .rpz file which can then be
scped to other system environments and be unzipped and ran.
Terminate a VM
when you are done playing around, you can terminate the virtual machine with:
$ vagrant destroy