Docker copy src - docker

Question

My project hierarchy is as such:
docker-flowcell-restore
docker-flowcell-restore
config
src
requirements.txt
Dockerfile
I would like to add my src file to my docker image using Copy. So far my Docker image has the following:
FROM ubuntu
RUN apt-get update && apt-get install -y \
python3 \
python3-pip
ENV INSTALL_PATH /docker-flowcell-restore
RUN mkdir -p $INSTALL_PATH
WORKDIR $INSTALL_PATH
COPY requirements.txt requirements.txt
RUN pip install -r requirements.txt
ENTRYPOINT ['python', 'docker-flowcell-restore/src/main.py']
How do I add the copy of the contents of the src folder? Thank you.

Answer 1

Add the copy after your pip install command. This leverages the docker layer cache so you don't rerun the install of all the requirements after a change to different parts of your code:
FROM ubuntu
RUN apt-get update \
&& apt-get install -y \
python3 \
python3-pip \
&& apt-get clean \
&& rm -rf /var/lib/apt/lists/*
ENV INSTALL_PATH /docker-flowcell-restore
RUN mkdir -p $INSTALL_PATH
WORKDIR $INSTALL_PATH
COPY requirements.txt requirements.txt
RUN pip install -r requirements.txt
COPY src/ src/
ENTRYPOINT ['python', 'src/main.py']
I've also added steps to cleanup the apt cache after performing the install, and adjusted the entrypoint since the WORKDIR was defined.

Answer 2

You can do the following:
FROM ubuntu
RUN apt-get update && apt-get install -y \
python3 \
python3-pip
ENV INSTALL_PATH /docker-flowcell-restore
RUN mkdir -p $INSTALL_PATH
WORKDIR $INSTALL_PATH
COPY requirements.txt requirements.txt
COPY ./src <the path inside the container where you want src>
RUN pip install -r requirements.txt
ENTRYPOINT ['python', 'docker-flowcell-restore/src/main.py']
This is assuming that you are building your image from the directory where the Dockerfile is located.