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

cwant

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 ...

cwant

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

Relevant links:

• https://github.com/cwant/tessagon
• https://github.com/spakin/SimpInkScr

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

cwant

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)

cwant

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)

cwant

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)

cwant

#!/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

cwant

$ 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