Docker Run Old Python Versions (3.10) In Container - Tutorial Linux Mint 22.3 x86_64 kernel 6.17

sudo apt update
sudo apt install docker.io -y
sudo usermod -aG docker $USER

mkdir docker-probe && cd docker-probe

server.py
from http.server import HTTPServer, BaseHTTPRequestHandler
import json
import sys

class Handler(BaseHTTPRequestHandler):
def do_GET(self):
if self.path == '/probe':
response = {"python_version": sys.version.split()[0], "message": "Container responding"}
self.send_response(200)
self.send_header('Content-type', 'application/json')
self.end_headers()
self.wfile.write(json.dumps(response).encode())
else:
self.send_response(404)
self.end_headers()

# Get the port from command line argument
port = int(sys.argv[1])
print(f"Python code listening inside container on port {port}")
HTTPServer(('0.0.0.0', port), Handler).serve_forever()

-------------------------------------------
Dockerfile
# software-properties-common provides the 'add-apt-repository' command
# This command adds external software repositories (like PPAs) to your system
# Without this package, you cannot add the deadsnakes PPA
# add-apt-repository adds the deadsnakes PPA to Ubuntu's list of package sources
# The -y flag automatically answers "yes" to the confirmation prompt
# The ppa:deadsnakes/ppa points to https://launchpad.net/~deadsnakes/+archive/ubuntu/ppa
# This PPA contains older Python versions (like 3.10) for newer Ubuntu releases
FROM ubuntu:24.04
RUN apt update && apt install -y software-properties-common
RUN add-apt-repository -y ppa:deadsnakes/ppa
RUN apt update && apt install -y python3.10
COPY server.py .
CMD ["python3.10", "server.py"]
---------------------------------------------

docker build -t probe-image .

# Pass 7000 to the Python code, map host 5000 to container 7000
docker run --rm --name my-probe -p 5000:7000 -d probe-image python3.10 server.py 7000

# --rm deletes the container after use, a container is just something you use once, and its based on the image created from above. The image is based on the Dockerfile
# Connect to host port 5000, Docker forwards to container port 7000, Python receives on 7000
# python3.10 server.py 7000 is like what you would give as a command in the bash terminal generated by the container you are spinning up.

docker ps --format "table {{.Names}}\t{{.Image}}\t{{.Status}}\t{{.Ports}}"

curl http://localhost:5000/probe

# clean up and researching the docker command
docker stop my-probe
docker rmi probe-image
cd .. && rm -rf docker-probe
docker run --help

Видео Docker Run Old Python Versions (3.10) In Container - Tutorial Linux Mint 22.3 x86_64 kernel 6.17 канала t3kmaster