Added build dependencies

Dockerfile

@@ -1,7 +1,5 @@
 FROM alpine:3.12
-RUN apk update && apk add --no-cache bash git openssh python3 py3-pip graphviz gcc
-
-RUN python3 -m pip install --upgrade pip setuptools wheel pyparsing pydot django-extensions django
+RUN apk update && apk add --no-cache bash git gcc openssh python3 py3-pip graphviz graphviz-dev musl-dev postgresql-dev build-base python3-dev libffi-dev openssl-dev
 
 COPY entrypoint.sh /entrypoint.sh
 ENTRYPOINT ["/entrypoint.sh"]

entrypoint.sh

@@ -1,7 +1,7 @@
 #!/bin/sh
 # e is for exiting the script automatically if a command fails, u is for exiting if a variable is not set
 # x would be for showing the commands before they are executed
-set -eu
+set -eux
 
 # FUNCTIONS
 # Function for setting up git env in the docker container (copied from https://github.com/stefanzweifel/git-auto-commit-action/blob/master/entrypoint.sh)
@@ -27,7 +27,7 @@ _git_changed() {
 
 # PROGRAM
 echo "Installing dependencies..."
-pip3 install --no-cache-dir -r $INPUT_PIP_PATH
+pip3 install -r $INPUT_PIP_PATH
 echo "Creating data model..."
 cd $INPUT_PROJECT_PATH
 python3 manage.py graph_models -a -g -o $INPUT_OUTPUT_PATH