Build container from a different image

Dockerfile

@@ -1,4 +1,5 @@
-FROM alpine:3.13.1
-RUN apk update && apk add --no-cache bash git gcc openssh python3 py3-pip graphviz graphviz-dev musl-dev postgresql-dev python3-dev build-base
+FROM python:3.10-slim-bullseye
+RUN apt-get update -y && apt-get install -y --no-install-recommends bash git openssh graphviz graphviz-dev musl-dev postgresql-dev build-base build-essential gcc python3-dev libffi-dev poppler-utils zlib1g-dev libjpeg-dev libssl-dev && apt-get clean && rm -rf /var/lib/apt/lists/*
 COPY entrypoint.sh /entrypoint.sh
+
 ENTRYPOINT ["/entrypoint.sh"]

entrypoint.sh

@@ -25,10 +25,10 @@ _git_changed() {
     [[ -n "$(git status -s)" ]]
 }
 
-# PROGRAM
 echo "Installing dependencies..."
 pip3 install -U pip wheel pyparsing pydot
 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