Project 3: Deploying a flask application Using Docker

Step 1: Launch an EC2 Instance

With the help of this: https://lalitakashyapblog.hashnode.dev/step-by-step-guide-to-setting-up-an-ec2-instance

Step 2: Install docker

With the help of this: https://lalitakashyapblog.hashnode.dev/from-zero-to-docker-a-beginners-introduction-to-containers

Step 3: Create directory and move into it

mkdir projects
cd projects/

Step 4: Create project name directory and move into it

mkdir flask-app
cd flask-app/

Step 5: Clone repository url

git clone https://github.com/Lalita5Kashyap/flask-app-ecs.git

Step 6: Move into project folder

cd flask-app-ecs/

Delete Dockerfile if have.

Step 7: Create dockerfile

# Get base image with python
FROM python

#Create a working directory to run a node app
WORKDIR /app

#Copy code from local machine to docker container
COPY . .

#Install all the required dependencies
RUN pip install -r requirements.txt

#Run the python app
CMD ["python", "run.py"]

Step 8: Build image

docker build -t flask-app:latest .

Step 9: Check image created or not

docker images

Step 10: Create and run docker container

docker run -p 80:80 flask-app:latest

Step 11: Check container created or not

docker ps

Step 12: Give permission to port "80" in instance

• Go to security group in instance

• Click SG link

  

• Click on "edit inbound rules"

• Click on "Add rules"

  

• Give "80" in port range and select "Anywhere" in source and click Save

  

• Copy public dns from instance in networking

  

• Now go to browser and paste public ip of instance

  

  With all above steps, you should be able to deploy your Flask application using Docker efficiently.

Thank you 🙏

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