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Heroku

THIS IS ASSUMING THAT YOU ARE USING BOBBY'S/JASON'S TEMPLATE

  • On heroku create the app

  • In Terminal enter these:

heroku login
heroku git:remote -a <app name>
  • On heroku go to 'Resources' tab in your app. In the 'Quickly add add-ons...' bar type Heroku Postgres and add it to your resources
    • if you aren't using postgres then don't bother with this and/or type whatever other resources you are using (i.e. MongoDB)
    • Make sure in your dbConnect.js, or however you connect to your database, you have process.env.DATABASE_URL as part of the database connection promise.
const config = process.env.DATABASE_URL || {
  host:       process.env.DB_HOST,
  port:       process.env.DB_PORT,
  database:   process.env.DB_NAME,
  user:       process.env.DB_USER,
  password:   process.env.DB_PASS,
};

  • On heroku go to the Setting tab in your app. Click Reveal Config Vars and enter the necessary things from your .env

    • NOTE: Do not include any of your DB things, b/c that is handled by heroku when you added Heroku Postgres.
    • NOTE: Put a Var for NODE_ENV and set it equal to production. This tells the package.json, and the express server if you have it configured a certain way, to run in production.

  • After connecting postgres to your heroku. Run this command in your terminal heroku pg:psql --app <app name> < db/schema.sql

    • where db/schema.sql is whatever file you have to establish your tables in psql.
    • if you have a seeds file you would have to execute a command for those files as well. heroku pg:psql --app <app name> < db/seeds.sql

  • Make sure in your package.json your scripts section looks like :

"scripts": {
  "clean": "rm -rf dist && rm -rf node_modules",
  "heroku-prebuild": "bash ./scripts/deployment_react.sh",
  "heroku-postbuild": "bash ./scripts/deployment_cleanup.sh",
  "rebuild": "webpack -d --progress --colors",
  "watch": "webpack -d --progress --watch"
  },

  • Make sure all your react and babel dependencies are only in devdependencies

    • npm uninstall --save react
    • npm i --save-dev react

  • Make sure in your express server that you have a line that looks like this const PORT = process.argv[2] || process.env.PORT || 3000;

    • especially check that the process.env.PORT is uppercase b/c one of the templates we were given had process.env.port which will break your deployment

  • In Terminal enter: git push heroku master if all goes according to plan you should be done.

  • Type: heroku open

Postgres Update

https://keita.blog/2016/01/09/homebrew-and-postgresql-9-

My version of this lovely blog

  • brew services stop postgresql

  • brew update && brew upgrade postgresql

  • initdb /usr/local/var/postgres9.6.1 -E utf8

pg_upgrade \
  -d /usr/local/var/postgres \
  -D /usr/local/var/postgres9.6.1 \
  -b /usr/local/Cellar/postgresql/9.5.4/bin/ \
  -B /usr/local/Cellar/postgresql/9.6.1/bin/ \
  -v

  • mv /usr/local/var/postgres /usr/local/var/postgres9.5.4

  • mv /usr/local/var/postgres9.6.1 /usr/local/var/postgres

  • brew services start postgresql

gem uninstall pg
gem install pg

Digital Ocean

Create droplet on Digital Ocean

Connect to server ssh root@104.131.69.109

b/c everyone needs a reminder whoami

Generate new ssh key to link with github

ssh-keygen
vi ~/.ssh/id_rsa.pub
  • go to github and put the new ssh key in settings

Clone the repo to server git clone git@github.com:Blockchain-voting/votechain.git

Install requirements pip install flask flask-cors

Nginx installation to format server (don't understand this fully)

sudo add-apt-repository ppa:nginx/stable
sudo apt-get update && sudo apt-get upgrade
sudo apt-get install nginx
sudo /etc/init.d/nginx start

Blog explaining it http://vladikk.com/2013/09/12/serving-flask-with-nginx-on-ubuntu/

Commands from blog that setup python files to be effected by Nginx

sudo chown -R root:root ../var/www/votechain/
sudo apt-get install python-virtualenv
cd ../var/www/votechain/
virtualenv venv
pip freeze

Up and running

to restart or debug python ../var/www/votechain/server.py

Install tmux sudo apt-get install tmux

Launch tmux tmux

launch server the usual way

See all tmux session tmux ls

Launch tmux with session name tmux new -s block-flask

Kill a tmux session by name tmux kill-session -t block-flask

Connect to tmux session by name tmux a -t block-flask

Exit tmux ctrl+b d

Pulling from Git cd ../var/www/votechain

  • then regular git commands