Fibonacci Calculator

Fibonacci Calculator implemented as an over-the-top multi-container Docker application with React, NodeJS, Express, Redis (AWS ElastiCache), Postgres (AWS RDS), AWS Elastic Beanstalk and Travis CI

Development

Build with Docker CLI

$ docker build -f Dockerfile.dev .

Run with Docker CLI

$ docker run <container_id>

NOTE: Use the -it flag when running React apps

Build with Docker Compose

$ docker-compose up

Rebuild with Docker Compose

$ docker-compose down  && docker-compose up --build

Access Client

http://localhost:3050

NOTE: you can change the port in the docker-compose.yml file under nginx -> ports

Production

Dockerrun.aws.json file

Replace the container tags in Dockerrun.aws.json from erinkelsey/[image_name] to your Docker Hub username

Custom AWS Security Group for Services

• Go to AWS Management Console and use Find Services to search for VPC
• Find the Security section in the left sidebar and click Security Groups
• Click Create Security Group button
• Set Security group name to multi-docker
• Set Description to multi-docker
• Make sure VPC is set to default VPC
• Click Create Button
• Scroll down and click Inbound Rules
• Click Edit Rules button
• Click Add Rule
• Set Port Range to 5432-6379
• Click in the box next to Source and start typing 'sg' into the box. Select the Security Group you just created.
• Click Create Security Group

AWS RDS Postgres Instance

• Go to AWS Management Console and use Find Services to search for RDS
• Click Create database button
• Select PostgreSQL
• In Templates, check the Free tier box.
• Scroll down to Settings.
• Set DB Instance identifier to multi-docker-postgres
• Set Master Username to postgres
• Set Master Password to postgrespassword and confirm.
• Scroll down to Connectivity. Make sure VPC is set to Default VPC
• Scroll down to Additional Configuration and click to unhide.
• Set Initial database name to fibvalues
• Scroll down and click Create Database button

Applying Security Group:

• Go to AWS Management Console and use Find Services to search for RDS
• Click Databases in Sidebar and check the box next to your instance
• Click Modify button
• Scroll down to Network and Security and add the new multi-docker security group
• Scroll down and click Continue button
• Click Modify DB instance button

AWS Elastic Cache Redis Instance

• Go to AWS Management Console and use Find Services to search for ElastiCache
• Click Redis in sidebar
• Click the Create button
• Make sure Cluster Mode Enabled is NOT ticked
• In Redis Settings form, set Name to multi-docker-redis
• Change Node type to 'cache.t2.micro'
• Change Replicas per Shard to 0
• Scroll down and click Create button

Applying Security Group:

• Go to AWS Management Console and use Find Services to search for ElastiCache
• Click Redis in Sidebar
• Check the box next to Redis cluster
• Click Actions and click Modify
• Click the pencil icon to edit the VPC Security group. Tick the box next to the new multi-docker group and click Save
• Click Modify

AWS Elastic Beanstalk

• Go to AWS Management Console and use Find Services to search for Elastic Beanstalk
• Click “Create Application”
• Set Application Name to 'multi-docker'
• Scroll down to Platform and select Docker
• In Platform Branch, select Multi-Container Docker running on 64bit Amazon Linux
• Click Create Application
• You may need to refresh, but eventually, you should see a green checkmark underneath Health.

Applying Security Group:

• Go to AWS Management Console and use Find Services to search for Elastic Beanstalk
• Click Environments in the left sidebar.
• Click MultiDocker-env
• Click Configuration
• In the Instances row, click the Edit button.
• Scroll down to EC2 Security Groups and tick box next to multi-docker
• Click Apply and Click Confirm
• After all the instances restart and go from No Data to Severe, you should see a green checkmark under Health.

Environment Variables:

• Go to AWS Management Console and use Find Services to search for Elastic Beanstalk
• Click Environments in the left sidebar.
• Click MultiDocker-env
• Click Configuration
• In the Software row, click the Edit button
• Scroll down to Environment properties
• In another tab Open up ElastiCache, click Redis and check the box next to your cluster. Find the Primary Endpoint and copy that value but omit the :6379
• Set REDIS_HOST key to the primary endpoint listed above, remember to omit :6379
• Set REDIS_PORT to 6379
• Set PGUSER to postgres
• Set PGPASSWORD to postgrespassword
• In another tab, open up the RDS dashboard, click databases in the sidebar, click your instance and scroll to Connectivity and Security. Copy the endpoint.
• Set the PGHOST key to the endpoint value listed above.
• Set PGDATABASE to fibvalues
• Set PGPORT to 5432
• Click Apply button
• After all instances restart and go from No Data, to Severe, you should see a green checkmark under Health.

Travis CI

Make sure that your GitHub repository is public, and that Travis CI is configured to access it.

Create the following environment variables:

• AWS_ACCESS_KEY -> Your AWS IAM Access Key with permissions for Elastic Beanstalk
• AWS_SECRET_KEY -> Your AWS IAM Secret Key with permissions for Elastic Beanstalk
• AWS_REGION -> Region of your AWS Elastic Beanstalk application
• AWS_APP_NAME -> AWS Elastic Beanstalk application name
• AWS_ENV_NAME -> AWS Elastic Beanstalk environment name
• AWS_BUCKET_NAME -> AWS S3 bucket name where application is stored (check logs when environment is created for name)
• AWS_BUCKET_PATH -> The folder in the AWS S3 holder your application (usually the same as AWS_APP_NAME)

NOTE: Deployment to AWS is only triggered when a pull request or commit is made to master branch on GitHub