Fix Dockerfile

virtualenv was not activated in run stage

Dockerfile

@@ -1,40 +1,35 @@
 FROM python:3.10-slim AS builder
 
+WORKDIR /app
 RUN apt-get update
 RUN apt-get install -y --no-install-recommends build-essential gcc
 RUN python -m pip install --upgrade pip
 
-ENV VIRTUAL_ENV=/venv
-RUN python -m venv --copies $VIRTUAL_ENV
-ENV PATH="$VIRTUAL_ENV/bin:$PATH"
+RUN python -m venv /opt/venv
+ENV PATH="/opt/venv/bin:$PATH"
 
 # Install dependencies before ISAR to cache pip installation
-RUN mkdir -p src
-COPY setup.py README.md ./
+COPY . .
 RUN pip install .
 
 # Install the base isar-robot package
 RUN pip install isar-robot
 
-COPY . .
-
-RUN pip install .
-
 FROM python:3.10-slim
-COPY --from=builder $VIRTUAL_ENV $VIRTUAL_ENV
-ENV PATH="$VIRTUAL_ENV/bin:$PATH"
-
 WORKDIR /app
+COPY --from=builder /opt/venv /opt/venv
+ENV PATH="/opt/venv/bin:$PATH"
 
 EXPOSE 3000
 
 # Env variable for ISAR to know it is running in docker
 ENV IS_DOCKER=true
 
-# # Add non-root user
+# Add non-root user
 RUN useradd --create-home --shell /bin/bash 1000
 RUN chown -R 1000 /app
 RUN chmod 755 /app
 USER 1000
 
+COPY . .
 CMD python main.py