Add Docker components

.dockerignore

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+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (http://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# Typescript v1 declaration files
+typings/
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+
+#  Local .terraform directories
+**/.terraform/*
+
+# .tfstate files
+*.tfstate
+*.tfstate.*
+
+# .tfvars files
+*.tfvars
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# TypeScript v1 declaration files
+typings/
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+
+# next.js build output
+.next
+
+.git/
+.gitignore
+.travis.yml
+LICENSE
+Procfile
+docker-compose.yml
+terraform/
+yarn.lock

Dockerfile

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+FROM node:alpine
+ARG NODE_ENV=production
+WORKDIR /srv
+COPY package.json .
+RUN NODE_ENV=$NODE_ENV yarn install --frozen-lockfile --silent
+COPY . .
+EXPOSE 3000
+CMD [ "yarn", "run", "start" ]

README.md

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+[![Build Status](https://travis-ci.com/jasonwalsh/prototype.svg?token=kDZcsygosGgqF2WJJ1jZ&branch=master)](https://travis-ci.com/jasonwalsh/prototype)
+
+## Docker
+
+This repository uses Docker [Community Edition](https://www.docker.com/community-edition) (CE) version `18.03.0-ce`.
+
+    $ docker-compose up -d
+
+The `-d` flag instructs Docker to run the containers in 'detached' mode.
+
+## Testing
+
+    $ docker-compose -f docker-compose.test.yml up
+
+## Deployment
+
 The following repository contains the Terraform configurations for the Heroku deployment pipeline: https://github.com/jasonwalsh/terraform-configurations.
 
 Please refer to the README for instructions on creating the necessary pipeline resources.

docker-compose.test.yml

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+services:
+  sut:
+    build:
+      args:
+        NODE_ENV: development
+      context: .
+    command: yarn run test
+version: '3.6'

docker-compose.yml

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+services:
+  bot:
+    build: .
+    environment:
+      ACCESS_TOKEN: '${ACCESS_TOKEN:?err}'
+      PORT: '${PORT:-3000}'
+      VERIFY_TOKEN: '${VERIFY_TOKEN:?err}'
+    ports:
+    - 3000:3000
+    volumes:
+    - .:/srv
+    - /srv/node_modules
+version: '3.6'