Avoid coping the code twice in dockerfile - dockerfile

Question

I am trying to dockerize the application that I found here...
https://github.com/mmz-001/knowledge_gpt
The following script is working as expected. But I do not want to copy the code twice. How do I fine-tune this dockerfile?
# cat Dockerfile
FROM python:3.10
RUN mkdir /app
RUN mkdir /app/knowledge_gpt/
COPY * /app/knowledge_gpt/
COPY * /app/
WORKDIR /app/
ENV PYTHONPATH=${PYTHONPATH}:${PWD}
RUN pip3 install poetry
RUN poetry config virtualenvs.create false
RUN poetry install --no-dev
WORKDIR /app/knowledge_gpt/
CMD ["streamlit", "run", "main.py"]

Answer 1

The issue here is within the pyproject.toml.
It has the following dependency:
[tool.poetry]
name = "knowledge-gpt"
version = "0.1.0"
...
packages = [{include = "knowledge_gpt"}]
So cmd poetry install will try and build from the root of the project instead of building from the packages defined. Thus you will need to define the --no-root option to your build.
By copying it twice, poetry has built from the root of the project /app
Update the Dockerfile to the following:
FROM python:3.10
RUN mkdir /app
COPY * /app/
WORKDIR /app/
ENV PYTHONPATH=${PYTHONPATH}:${PWD}
RUN pip3 install poetry
RUN poetry config virtualenvs.create false
RUN poetry install --only main --no-root
CMD ["streamlit", "run", "main.py"]
I also created a docker-compose.yml to make building it easier:
version: "3.8"
services:
kgpt:
image: knowledge-gpt
container_name: knowledge-gpt
build:
context: .
dockerfile: ./Dockerfile
ports:
- 8501:8501
networks:
default:

Answer 2

Just a wild guess
change this
COPY * /app/knowledge_gpt/
COPY * /app/
WORKDIR /app/
to this
COPY * /app/knowledge_gpt/
WORKDIR /app/knowledge_gpt/
This will copy the content and set the working directory to current