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rainbowtext

A mini Flask App to demonstrate auto deploy to AWS-ECS Fargate with Docker-Compose

Project Folder Structure.

- nginx
    | - check.sh
    | - dockerfile
    | - nginx.conf
    | - nginx.dev.conf
- scripts
    | - .env (ignored)
    | - config_ecr.py
    | - del_ecr.py
    | - deploy.sh
    | - destroy.sh
    | - login_ecr.sh
    | - set_ecs_params.py
    | - setup_ecs.sh
    | - task-execution-assume-role.json
- templates
    | - home.html
- .gitignore
- app.py
- docker-compose.ecs.yml(generated and ignored)
- docker-compose.yml
- dockerfile
- ecs-params.yml
- ecs-params.ecs.yml (generated and ignored)
- instructions.txt
- LICENSE
- README.md
- requirements.txt
- uwsgi.ini

.env file should be placed in your scripts folder. run source scripts/.env to load your environment variables

# Project name needs to match the docker image prefix, which is by default the same as the project root dir name
export AWS_PROJECT=rainbowtext
export AWS_ROLE=<YOUR_AWS_ROLE_NAME>

export AWS_ACCOUNT_ID=<YOUR_AWS_IAM_ACCOUNT_ID>
export AWS_REGION=<YOUR_AWS_REGION>

export AWS_ACCESS_KEY_ID=<YOUR_AWS_IAM_ACCESS_KEY_ID>
export AWS_SECRET_ACCESS_KEY=<YOUR_AWS_IAM_SECRET_ACCESS_KEY>

export DOCKER_COMPOSE_YML_INPUT=docker-compose.yml
export DOCKER_COMPOSE_YML_OUTPUT=docker-compose.ecs.yml

export ECS_PARAMS_INPUT=ecs-params.yml
export ECS_PARAMS_OUTPUT=ecs-params.ecs.yml

This project makes use of Docker to automate deployment to AWS ECS FARGATE.

Create a launch box

AWS -> EC2 -> Images -> AMIs -> AMI ID = ami-09712b7bf6d670b8f

Use this image to launch a pre-configured Linux box with all the dependencies installed.

Build and run locally

docker-compose build && docker-compose up

Navigate to localhost to see the running application.

Build for production

docker-compose build --build-arg build_env="production"

Build for production and deploy

NB: Activate python virtual environment and pip install
the requirements before running the deploy script.
The deploy script needs to run with python3

docker-compose build --build-arg build_env="production"
./scripts/deploy.sh > deploy.log 2>&1 &

Access the web service

The deployment scripts create a cluster with an auto-generated default security group. The default rules doesn't allow inbound traffic from the Internet and we need to change that after services are up. Run grep security_grp deploy.log to extract the auto-generated security group ID. Go to AWS console AWS -> VPC -> Security Groups and search for that ID. Add an HTTP inbound rule.

Destroy after testing app

scripts/destroy.sh

Other instructions

instructions.txt

Some context here if you don't mind

The Deploy script does three basic things using three files

  • scripts/login_ecr.sh: It configures aws on your machine with a custom profile and logs into ECR.
  • scripts/config_ecr.py: It creates a repo on ecr and uploads created and tagged images to ECR.
  • scripts/setup_ecs.sh rainbowtext: Setup ECS and deploy to ECS fargate.