Use base image to add baseline.

.github/workflows/docker-image.yml

@@ -2,8 +2,9 @@ name: Docker Image CI
 
 on:
   push:
-    branches: [ "main" ]
-  pull_request:
+    paths-ignore:
+      - build/base.Dockerfile
+      - .github/workflows/base-docker-image.yml
     branches: [ "main" ]
 
 jobs:
@@ -34,7 +35,10 @@ jobs:
         path: 'model/blazeface'
 
     - name: Pull latest from DO
-      run: docker pull registry.digitalocean.com/thesmile/thesmile:latest
+      run: docker pull registry.digitalocean.com/thesmile/thesmile-base:latest
+
+    - name: Tag for local use
+      run: docker image tag registry.digitalocean.com/thesmile/thesmile-base:latest thesmile:latest
 
     - name: Build the Docker image
       run: docker build . --file build/Dockerfile --tag thesmile:$(date +%Y%m%d-%s) --tag thesmile:latest

build/Dockerfile

@@ -1,15 +1,9 @@
 # start by pulling the python image
-FROM python:3.12
-
-# copy the requirements file into the image
-COPY ./requirements.txt /app/requirements.txt
+FROM thesmile-base:latest
 
 # switch working directory
 WORKDIR /app
 
-# install the dependencies and packages in the requirements file
-RUN pip install -r requirements.txt
-
 # copy every content from the local file to the image
 COPY . /app