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Horse Race

Horse race arcade style game, used as a demo at NodeConfEU 2018

Original authors:

  • George Adams
  • Musa Hamwala
  • Thomas Leah

use: appsody run --docker-options "--env-file=.env" to start the game

Environment variables needed:

  • ADMIN_PASSWORD
  • URL
  • TWITTER_CONSUMER_SECRET
  • TWITTER_CONSUMER_KEY
  • CLOUDANT_URL
  • CLOUDANT_USERNAME
  • CLOUDANT_PASSWORD
  • CLOUDANT_DOC

Endpoints:

Twitter secrets

To get a twitter consumer secret and key to use with the app you need to go to the following link

https://developer.twitter.com/en/apps

You will then need to create a new app filling in the necessary details.

Running a Local CouchDB Instance

Start a CouchDB docker container using the following commands:

  • docker pull couchdb:latest
  • docker run -d -p 5984:5984 --name my-couchdb couchdb:latest

Go to http://localhost:5984/_utils/#createAdmin/nonode@nohost and then create an admin account. Add those passwords to the .env file as CLOUDANT_USERNAME and CLOUDANT_PASSWORD.

Inspect your docker container using the following commands

  • docker ps and find the container ID of the my-couchdb container
  • docker inspect containerID

Then copy the IPAddress field from under NetworkSettings.

Insert the IP address into the following string:

then add the string to the .env file under CLOUDANT_URL.

Finally create a new database in your couchDB instance. Start by going to the following url:

http://localhost:5984/_utils/#/_all_dbs

then click the Create Database. Add a name for your database and then click Create Document. Copy the documents id and add this to the CLOUDANT_DOC field in the .env file.

You should now be able to use a local couchdb instance instead of a Cloudant database. Note that this instance is non-persistent so you will have to attach a volume to your docker container using the -v option of docker run, more information can be found at the following link:

Deploying to OpenShift

  • Start by running an appsody build (ensure you haven't got a .env file in your project as this wont be docker ignored and will end up in the docker image)

  • Once the docker image has been built, rename it to <dockerhub_username>/horse-race and docker push it to docker hub and make sure its a public image.

  • Login to an OpenShift instance and create a new project oc new-project horse-race

  • Create a new application using oc new-app --docker-image="<dockerhub_username>/horse-race:latest" and expose a route with oc svc/horse-race

  • Add the environment variables to the deployment config. You can do this individually by doing oc set env dc/horse-race VAR="val" or add the following to the deployment config yaml replacing the value fields with your environment variable values

env:
  - name: ADMIN_PASSWORD
    value:
  - name: URL
    value: >-
      http://example.com
  - name: TWITTER_CONSUMER_KEY
    value:
  - name: TWITTER_CONSUMER_SECRET
    value:
  - name: CLOUDANT_USERNAME
    value:
  - name: CLOUDANT_PASSWORD
    value:
  - name: CLOUDANT_DOC
    value:
  - name: CLOUDANT_URL
    value: >-
      https://example.com

Notes:

  • The URL environment variable is your address of the exposed route to your application.

  • Appmetrics dash is only included in development and not in the image built using appsody build