Refactor CI pipeline to use separate Dockerfiles for linting, testing…

…, and publishing with Alpine 3.20 and virtualenv setup

Dockerfile.lint

@@ -1,22 +1,15 @@
 FROM alpine:3.20
 
 # Install Python and pip
-RUN apk add --no-cache python3 py3-pip && \
-    python3 -m ensurepip && \
-    ln -sf python3 /usr/bin/python && \
-    pip install --upgrade pip && \
-    pip install virtualenv
+RUN apk add --no-cache python3 py3-pip
 
 # Create and activate virtual environment
 RUN python3 -m venv /venv
 
-# Ensure setuptools and wheel are installed in virtual environments before installing requirements
-RUN /venv/bin/pip install --upgrade setuptools wheel
-
 # Copy requirements and install within virtual environment
 COPY ./requirements.txt /requirements.txt
-RUN /venv/bin/pip install -r /requirements.txt
-RUN /venv/bin/pip install flake8
+RUN /venv/bin/pip install --no-cache-dir -r /requirements.txt
+RUN /venv/bin/pip install --no-cache-dir flake8
 
 WORKDIR /app
 

Dockerfile.publish

@@ -1,21 +1,14 @@
 FROM alpine:3.20
 
 # Install Python and pip
-RUN apk add --no-cache python3 py3-pip && \
-    python3 -m ensurepip && \
-    ln -sf python3 /usr/bin/python && \
-    pip install --upgrade pip && \
-    pip install virtualenv
+RUN apk add --no-cache python3 py3-pip
 
 # Create and activate virtual environment
 RUN python3 -m venv /venv
 
-# Ensure setuptools and wheel are installed in virtual environments before installing requirements
-RUN /venv/bin/pip install --upgrade setuptools wheel
-
 # Copy requirements and install within virtual environment
 COPY ./requirements.txt /requirements.txt
-RUN /venv/bin/pip install -r /requirements.txt
+RUN /venv/bin/pip install --no-cache-dir -r /requirements.txt
 
 WORKDIR /app
 

Dockerfile.test

@@ -1,21 +1,14 @@
 FROM alpine:3.20
 
 # Install Python and pip
-RUN apk add --no-cache python3 py3-pip && \
-    python3 -m ensurepip && \
-    ln -sf python3 /usr/bin/python && \
-    pip install --upgrade pip && \
-    pip install virtualenv
+RUN apk add --no-cache python3 py3-pip
 
 # Create and activate virtual environment
 RUN python3 -m venv /venv
 
-# Ensure setuptools and wheel are installed in virtual environments before installing requirements
-RUN /venv/bin/pip install --upgrade setuptools wheel
-
 # Copy requirements and install within virtual environment
 COPY ./requirements.txt /requirements.txt
-RUN /venv/bin/pip install -r /requirements.txt
+RUN /venv/bin/pip install --no-cache-dir -r /requirements.txt
 
 WORKDIR /app