Troubleshooting: AWS ECS Deploy Containerized Flask Application

Overview

Create an AWS Account
Install and Configure AWS CLI
Install Docker
Create a or clone flask application with a docker file
Create Docker Image from Dockerfile
Run and View Docker Image Locally
Create Repository in ECS Registry

Create Docker Image from `Dockerfile`

Execute the command below from the root directory of the newly created project Dockerfile
- docker build -t my-flask-app .

Troubleshooting

Command Fails Without Docker Daemon Running

Command Fails With Docker Daemon Running

Ensure Docker Credential Desktop Executable is on Path

Execute the command below to ensure docker-credential-desktop.exe is on Path
- docker-credential-desktop.exe version

Rename credsStore to credStore

In ~/.docker/config.json change credsStore to credStore

Re-attempt to build the image

Run Docker Image

Execute the command below from the root directory of the project
- docker run -p 80:80 my-flask-app
View the application by navigating the to the link below
- http//localhost:8080/

Create Repository in Elastic Container Registry

Execute the command below to create a repository in the elastic container registry

aws ecr create-repository --repository-name my-flask-application-01.06.2021

Authenticate with newly created ECR repo

Execute the command below to print a command used to log into the newly created ECR repository.
- aws ecr get-login --region us-east-1 --no-include-email
Copy the output of that command.
Paste and run the output in the terminal.
This will actually authenticate you with the ECR so you can push your Docker image into it.

Push to newly authenticated repo

Execute the commands below to tag and push the image to the AWS ECR (where ACCT_ID is your own AWS account ID)
- Execute command below to tag image
  - docker tag my-flask-app:latest ACCT_ID.dkr.ecr.us-east-1.amazonaws.com/
- Execute command below to push image up to AWS ECR
  - docker push ACCT_ID.dkr.ecr.us-east-1.amazonaws.com/hello-world