Enterprise-SW-Plat-Assignment-1

To complete the 2nd and 3rd part of this assignment, I made a hangman game using flask and hosted it locally on a docker container.

Part #2

I created a Dockerfile as seen in the repo above and built the docker image using:

docker build -t bolt162/hangman:latest .

The second step was to write down unit tests and run them to ensure that the game does not have edge cases where the applicaiton would crash. The test files are available in the tests/ repository and I ran the following command to run those tests:

docker run —rm bolt162/hangman: latest python -m unittest discover -s tests

The last step was to push the image to the registry with:

docker push bolt162/hangman:latest

Part #3 (Performance difference VM vs Docker)

To automate a Virtual Machine setup, we used Vagrand:

vagrant up vagrant ssh cd /vagrant python3 hangman.py

Then i used htop to monitor stats in both vagrand and docker

Request Throughput/Response Time: Used ab (ApacheBench) for load testing: ab -n 1000 -c 10 http://ip:port/

Vagrant:

Docker:

Benchmark Results: Hangman Application (Docker vs. Vagrant VM)

Metric	Docker	Vagrant VM	Difference/Notes
Server Software	Werkzeug/3.1.3	Werkzeug/2.0.3	Different versions; may affect performance.
Port	4000	5000	N/A
Document Length	5521 bytes	1319 bytes	Docker serves larger responses.
Time Taken	2.633 s	20.220 s	Docker ~7.7x faster.
Complete Requests	1000	1000	Identical.
Failed Requests	0	1 (Length: 1)	Vagrant had one failure.
Total Transferred	5,859,000 bytes	1,508,334 bytes	Higher in Docker due to document size.
HTML Transferred	5,521,000 bytes	1,353,297 bytes	Higher in Docker due to document size.
Requests per Second	379.72 [#/sec]	49.46 [#/sec]	Docker ~7.7x higher throughput.
Time per Request (mean)	26.335 ms	202.197 ms	Docker ~7.7x faster.
Time per Request (concurrent)	2.633 ms	20.220 ms	Docker ~7.7x faster.
Transfer Rate	2172.65 KB/s	72.85 KB/s	Docker ~29.8x higher.
Connect Time (min/mean/sd/max)	0/0.6/0/18 ms	0/0.6/0.6/13 ms	Similar; negligible differences.
Processing Time (min/mean/sd/max)	15/26/6.1/73 ms	92/201/46.4/612 ms	Docker faster, less variable.
Waiting Time (min/mean/sd/max)	2/12/5.4/46 ms	91/195/45.3/612 ms	Docker lower latency.
Total Time (min/mean/sd/max)	15/26/6.1/73 ms	92/201/46.4/612 ms	Docker ~7.7x lower mean time.
Latency Percentiles	Not provided	50%: 200 ms, 75%: 226 ms, 90%: 259 ms, 95%: 279 ms	Vagrant higher tail latencies.

Conclusion

The Hangman application performs significantly better in Docker, with ~7.7x higher requests per second, lower latency, and faster test completion with no failed requests. Docker's lightweight containerization likely reduces overhead compared to Vagrant's VM setup. Differences may also stem from Werkzeug versions or configurations. Docker appears more scalable, but additional tests with identical setups or varied loads are recommended.