Docker Python OMG!!

gistfile1.txt

```bash
HOST
sudo chown 1000:1000 /home/ehzawad/python-dockerbaby/src
chmod 777 /home/ehzawad/python-dockerbaby/src

Container
ARG version=alpine
FROM python:${version} as base

# Installing basic tools
RUN apk add --no-cache bash

# Create a user with specific UID and GID
RUN addgroup -g 1000 ehzawad && adduser -D -G ehzawad -u 1000 ehzawad

# Switch to user
USER ehzawad

# Install iPython
RUN pip install ipython

# Create app directory
WORKDIR /app

# Create the src directory and set permissions
RUN mkdir src

# Volume mount point
VOLUME /app/src

# Copy the startup script
COPY --chown=ehzawad:ehzawad startup.sh /app/startup.sh

# Make the startup script executable
RUN chmod +x /app/startup.sh

# Expose the port
EXPOSE 80

# Set the startup script as the entry point
ENTRYPOINT ["/app/startup.sh"]


build and run 
docker build -t python-dockerbaby:1 .
docker run -it -v /home/ehzawad/python-dockerbaby/src:/app/src -p 80:80 --network python-dockerbaby-net python-dockerbaby:1


docker network
docker network create python-dockerbaby-net
```

Both of the commands are working because of the way you have set up your volume mapping and the current working directory inside the Docker container.

1. docker run -it -v /home/ehzawad/python-dockerbaby/src:/app/src -p 80:80 --network python-dockerbaby-net python-dockerbaby:1 python /app/src/hello.py

   • Here you are explicitly pointing to the full path /app/src/hello.py inside the container where the volume is mounted. The /app/src directory in the container is mapped to the /home/ehzawad/python-dockerbaby/src directory on your host machine.

2. docker run -it -v /home/ehzawad/python-dockerbaby/src:/app/src -p 80:80 --network python-dockerbaby-net python-dockerbaby:1 python src/hello.py

   • In this case, you are using a relative path src/hello.py. Since you've set the working directory inside the Dockerfile to /app (WORKDIR /app), this path is relative to /app, and it gets resolved to the same full path /app/src/hello.py.

Both commands are, therefore, pointing to the same location inside the container, and that's why they are both working.