sample-docker-app

Dockerize a sample Flask app that can be accessed from outside container.

Prereqsites

Works best on Linux Distro. tested with Fedora 29
Should have docker installed
Should have python3 and all its required packages such as pip, flask etc. installed

Setup & Run

git clone https://github.com/krmanish/sample-docker-app
cd sample-docker-app
python3 apps.py # Verify if server running fine at http://0.0.0.0:5000. Kill this if all is well
Next Build container / Create Image: sudo docker build --tag sample-flask-app .
Finally create container & Run: sudo docker run --name sample-flask-app -p 5000 --expose 5000 sample-flask-app

That's it, if all goes well, you should be able to see a server running at http://172.17.0.2:5000 or something similar ip.

Test Cases & Coverage

Run testcase using coverage command coverage run -m pytest test_apps.py
Check out the testcase coverage coverage report test_apps.py

Test container app using CURL

curl -X GET http://<container ip address>:5000/hello
curl -X GET http://<container ip address>:5000/ack/hello-world
curl -X POST http://<container ip address>:5000/postme -d '{"foo": "wah", "bar": 12}' -H 'content-type: application/json'

Other Useful Docker commands

Show list of images: sudo docker images
Remove image: sudo docker image rm <image_name>
Show Running container: sudo docker ps
Remove Container: sudo docker rm sample-flask-app [or use container id]
Kill running container: sudo docker kill sample-flask-app [-f]