build: fix dependencies

Dockerfile

@@ -3,23 +3,23 @@ FROM docker.io/library/python:3.9-slim
 # Configure piwheels repo to use pre-compiled numpy wheels for arm
 RUN echo -n "[global]\nextra-index-url=https://www.piwheels.org/simple\n" >> /etc/pip.conf
 
-RUN apt-get update && apt-get install -y libusb-1.0-0
+RUN apt-get update && apt-get install -y libusb-1.0-0 libgl1 libglib2.0-0
 
 
 RUN pip3 install numpy
 
-ADD requirements.txt .
+ADD requirements.txt requirements.txt
 
 RUN pip3 install -r requirements.txt
 
-ADD events .
-ADD camera .
-ADD setup.cfg .
-ADD setup.py .
+ADD events events
+ADD camera camera
+ADD setup.cfg setup.cfg
+ADD setup.py setup.py
 
 
 ENV PYTHON_EGG_CACHE=/tmp/cache
-RUN python3 setup.py install && rm -rf /src
+RUN python3 setup.py install
 
 WORKDIR /tmp
 USER 1234