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FROM ubuntu:16.04
MAINTAINER john@doe.com
ENV REFRESHED_AT 2016-07-27

# Choose your ruby version
ENV RUBY_VERSION 'ruby 2.2'

# Install packages
RUN apt-get update && apt-get -y install wget \
  build-essential \

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source 'https://rubygems.org'

gem 'rpi_gpio', '~> 0.3.3'
gem 'slack-ruby-client', '~> 0.10.0'

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Execute an interactive bash shell on the container

docker exec -it app-accounting bash

Remove unused volumes

$ docker volume rm (docker volume ls -q -f dangling=true)

Remove all images

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To observer any notification

center.addObserver(forName: nil, object: nil, queue: nil) { (note) in
  print("note: \(note)")
}

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Series #1 in Demystificationising™ the web

DNS (Domain Name System)

Links

• https://medium.com/@maneesha.wijesinghe1/what-happens-when-you-type-an-url-in-the-browser-and-press-enter-bb0aa2449c1a
• https://webhostinggeeks.com/guides/dns/
• https://github.com/alex/what-happens-when
• https://dev.to/antonfrattaroli/what-happens-when-you-type-googlecom-into-a-browser-and-press-enter-39g8

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Semantic Commit Messages

https://seesparkbox.com/foundry/semantic_commit_messages

chore: add Oyster build script
docs: explain hat wobble
feat: add beta sequence
fix: remove broken confirmation message
refactor: share logic between 4d3d3d3 and flarhgunnstow

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Start new session with name

tmux new -s mysession

Attach to existing session

tmux a -t mysession

Attach to last session

tmux a

List sessions

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Helpful JS testing tips

JEST Mocking

Spotify.validateTrack.mockImplementation(trackMock)
Decorator.parse.mockResolvedValue('unifiedMessage')
User.findOneAndUpdate.mockRejectedValue(new Error('bang'))

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Setup

https://www.digitalocean.com/community/tutorials/how-to-install-mongodb-on-ubuntu-18-04

Permissions

https://www.digitalocean.com/community/tutorials/how-to-install-and-secure-mongodb-on-ubuntu-16-04#part-two-securing-mongodb

Create admin user

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// @deno-types="https://deno.land/x/types/react/v16.13.1/react.d.ts"
import React from "https://dev.jspm.io/react@16.13.1";
// @deno-types="https://deno.land/x/types/react-dom/v16.13.1/server.d.ts"
import ReactDOMServer from "https://dev.jspm.io/react-dom@16.13.1/server";
import { opine } from "https://deno.land/x/opine@0.3.0/mod.ts"
export {
  Request,
  Response,
  NextFunction,
} from "https://deno.land/x/opine@0.3.0/src/types.ts";