Chris Want cwant

This guide provides some notes on how I used Dokku to deploy TeSS.

Dokku is a platform that allows easy deployment of apps via git (akin to Heroku) for applications that follow 12-factor principles.

My preferred setup:

I like to use docker-compose in development. I follow the guide in the TeSS documentation to get this working.
I like to use Dokku in production. It makes zero-downtime upgrades a breeze. Steps below are intended to make this work.
I prefer to use Rails credentials to minimize the number of secrets I need to communicate to my app through environment variables

Motivation

A few years ago I wrote a (mostly) JS website that aims to show the impact of resource asks on scheduling resources: https://slurm-wizard.uofa.c3.ca/

This was written mostly with Plotly and jQuery, and was not easy to write, in particular it was difficult to get Plotly to do what I wanted it to with it's high-level interface.

Plotly is written with D3, so I thought it might be time to explore this lower-level library.

So I looked into a 20 hour course on YouTube ...

This is a demo to use the Tessagon python tiling library in Inkscape, using the Simple Inkscape Scripting extension.

Relevant links:

See demo script (inkscape_simple_demo.py) and screenshot of image (inkscape_simple.png).

Dokku on the Compute Canada cloud

First: lets provision a cloud VM

Lets spin up a cloud VM so we can talk about other stuff while we wait.

Deploy an Ubuntu 20.04 instance.
p4-3gb will work fine.
Make sure the keypair is injected
Make sure to associate the static IP to the one used for DNS (see below)

Dokku on the Compute Canada cloud

First: lets provision a cloud VM

Lets spin up a cloud VM so we can talk about other stuff while we wait.

Deploy an Ubuntu 18.04 instance.
Make sure the keypair is injected
Make sure to associate the static IP to the one used for DNS (see below)
Don't forget to set a disk size!!!! (20GB will do)

Dokku on the Compute Canada cloud

First: lets provision a cloud VM

Lets spin up a cloud VM so we can talk about other stuff while we wait.

Deploy an Ubuntu 18.04 instance.
Make sure the keypair is injected
Make sure to associate the static IP to the one used for DNS (see below)
Don't forget to set a disk size!!!! (20GB will do)

	#!/bin/bash

	BIND_NETWORK='192.168'
	RUBY_VERSION='2.4'
	BUNDLER_VERSION='1.14'
	AVALON_REPO='https://github.com/cwant/avalon'
	AVALON_BRANCH='cwant/docker-refactor'
	SRC_DIR=$HOME/gitwork
	AVALON_DIR=$SRC_DIR/avalon

	$ bundle exec rspec ./spec/integration/omniauth_callbacks_controller_spec.rb[1:1:2] ./spec/features/capybara_playlist_spec.rb[1:10]

	[Coveralls] Set up the SimpleCov formatter.
	[Coveralls] Using SimpleCov's 'rails' settings.
	Run options: include {:ids=>{"./spec/integration/omniauth_callbacks_controller_spec.rb"=>["1:1:2"], "./spec/features/capybara_playlist_spec.rb"=>["1:10"]}}

	Users::OmniauthCallbacksController
	lti
	should create the course if necessary