Villain

The purpose of the villain API is to provide users and score functionality. The API is run on nodejs express hosted in Heroku and connects to an ElephantSQL postgress DB.

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Swagger Docs

Requirements

• node 20x due to Dyna support
• postgres
• ElephantSQL postgress account
• Sendgrid account

Get started

Postgres installation

In order to run your application localy and without affecting the production DB, you need to create a local DB to connect to. Folow the below steps.

On a Mac

• Navigate to https://postgresapp.com/ and follow the instructions

On Windows

• Navigate to https://www.postgresql.org/download/windows/ and follow the instructions

Villain API Application

open your terminal and follow the below steps

• clone repo git clone https://github.com/ale-sanchez-g/villain
• run the init script file to create your DB
  • mac/linux run sh setup/init.sh
  • windows run bash ./setup/init.sh
    • NOTE: Also make sure your shell script is formatted with Unix style, or there can be errors.
• run npm install --force
• set ELEPHANT_URL variable with the postgress URL of the instance that you what to use
• set SENDGRID_API_KEY with your SENDGRID API KEY, or you can set it to off so the function to send emails is not called
• run npm start or node app/index.js $PORT
• example:

source .env
SENDGRID_API_KEY=off ELEPHANT_URL=${ELEPHANT_URL} npm start NODE_ENV=production

• Navigate to http:localhoat:3000/api-docs to view the swagger documentaiton of the API

to run in production

srouce .env
NODE_ENV=production SENDGRID_API_KEY=${SENDGRID_API_KEY} ELEPHANT_URL=${ELEPHANT_URL} npm start

Test

• must start the server with port 3000
• run npm test

Performance test

Navigate to https://k6.io/docs/getting-started/installation and follow the instructions

We have set up 4 test to validate the performance of the API.

• e2e // seems to break the app DO NOT RUN
• smoke (k6.spec.js)
• Load (userJourneyLoad.spec.js)
• Spike (userJourneySpike.spec.js)

You can run the above by running

MY_HOSTNAME=https://supervillan-81ce46d107ff.herokuapp.com k6 run test/userJourneyLoad.spec.js

or by updating the ci.load_test.yml file with the name of the branch you can test run the load test.

If you are making major changes to the DB queries or changes to the DB, we recommend you run the load test to validate the performance of the API.

Swagger

After starting the service localy, refer to localhost:3000/api-docs endpoint

Please ensure you update the functinality as you fo using https://editor.swagger.io/, just updaload the openapi.json file from the swagger fordel into the editor ( you will be prompted to change to yaml). Then make the relevant changes and dowload the as JSON file.

The replace openapi.json and comimt the changes in a Pull request.

Sendgrid

We use sendgrid for sending authentication keys over email, as part of our 2FA system. To get the sendgrid API key you need to register.

Current account for this project is under creation.

Elephant SQL

We use the free tier of ElephantSQL to host our database. To get access to the database you need to register.

Log into your account and get the URL from the instance

Docker

Ensure you have requested the .env file with the relevant keys and run the below commands

source .env

Build application base on the architecture

docker build --build-arg DT_PAAS_TOKEN=${DT_PAAS_TOKEN} -t morsisdivine/villan-api:latest .

or

docker build --build-arg DT_PAAS_TOKEN=${DT_PAAS_TOKEN} -t morsisdivine/villan-api:arm . -f Dockerfile.m2

Run Image with the below command

docker run -p 3000:3000 -e SENDGRID_API_KEY=${SENDGRID_API_KEY} -e NODE_ENV=production -e ELEPHANT_URL=${ELEPHANT_URL} morsisdivine/villan-api:arm

or

docker run -p 3000:3000 -e SENDGRID_API_KEY=${SENDGRID_API_KEY} -e NODE_ENV=production -e ELEPHANT_URL=${ELEPHANT_URL} morsisdivine/villan-api:latest

Heroku

We use Heroku to host our application.

To deploy to Heroku you need to have an account and be added to the project.

To deploy to Heroku you need to have the Heroku CLI installed. Refer to https://devcenter.heroku.com/articles/heroku-cli

source .env
heroku login
heroku container:login
heroku container:push web --arg DT_PAAS_TOKEN=${DT_PAAS_TOKEN} -a supervillan
heroku container:release web -a supervillan

TODO - Kubernetes

minikube start minikube dashboard

kubectl create namespace dynatrace kubectl apply -f https://github.com/Dynatrace/dynatrace-operator/releases/download/v0.12.1/kubernetes.yaml kubectl -n dynatrace wait pod --for=condition=ready --selector=app.kubernetes.io/name=dynatrace-operator,app.kubernetes.io/component=webhook --timeout=300s kubectl apply -f dynakube.yaml

kubectl proxy

kubectl create deployment villan --image=morsisdivine/villan-api:latest export POD_NAME=$(kubectl get pods -o go-template --template '{{range .items}}{{.metadata.name}}{{"\n"}}{{end}}') echo Name of the Pod: $POD_NAME

http://localhost:8001/api/v1/namespaces/default/pods/villan-7bfd456f45-x6mx6:3000/proxy/health

kubectl rollout restart -n default deployment villan

kubectl delete deployment villan