Move Dockerfile to project root to avoid permissions issues. Allocate more memory to docker-compose to avoid OOM

Dockerfile

@@ -0,0 +1,29 @@
+# syntax=docker/dockerfile:1
+FROM continuumio/miniconda3:latest
+
+# Install system dependencies.
+RUN apt-get update -y && \
+    apt-get -y install libimage-exiftool-perl
+
+# Add the local code to the /app directory and set it to be the working directory.
+# Since we mount the /app directory as a volume in docker-compose.yml, this
+# allows us to automatically update the code in the Docker image when it's changed.
+ADD . /app
+WORKDIR /app
+
+# Get the arguments from the docker-compose environment.
+ARG PORT
+EXPOSE ${PORT}
+
+# Create the conda environment.
+RUN conda env create -f config/environment.yml
+
+# Use the conda environment we created to run the application.
+# To enable the conda env, we cannot simply RUN `conda activate semantic-search`, 
+# since each RUN command in a Dockerfile is a separate bash shell. 
+# The environment would not carry forward.
+# Instead, we'll use `conda run` to run the application.
+# There are more arguments required for the script to run, 
+# but these should be passed in through the docker-compose.yml file.
+ENTRYPOINT ["conda", "run", "--no-capture-output", "--name", "semantic-search", \
+    "python3", "-m", "src.main"]