Reproducible Docker-based test environment

brmbar3/Dockerfile

@@ -0,0 +1,37 @@
+FROM debian:bookworm-slim
+
+# Install dependencies including PostgreSQL server (newer version)
+RUN apt-get update && apt-get install -y \
+    python3 \
+    python3-psycopg2 \
+    postgresql \
+    postgresql-client \
+    sudo \
+    && rm -rf /var/lib/apt/lists/*
+
+# Create non-root user for running the application (matching INSTALL.md)
+RUN useradd -m -s /bin/bash brmuser
+
+# Give brmuser permissions to manage postgresql service
+RUN echo "brmuser ALL=(ALL) NOPASSWD: /usr/sbin/service postgresql start, /usr/sbin/service postgresql stop, /usr/sbin/service postgresql status" > /etc/sudoers.d/brmuser && \
+    echo "brmuser ALL=(postgres) NOPASSWD: ALL" >> /etc/sudoers.d/brmuser && \
+    chmod 0440 /etc/sudoers.d/brmuser
+
+# Create working directory
+WORKDIR /app
+
+# Copy application files
+COPY . /app/
+
+# Setup entrypoint script
+COPY docker-entrypoint.sh /entrypoint.sh
+RUN chmod +x /entrypoint.sh
+
+# Set proper permissions
+RUN chown -R brmuser:brmuser /app
+
+# Switch to non-root user
+USER brmuser
+
+ENTRYPOINT ["/entrypoint.sh"]
+CMD ["test"]

brmbar3/INSTALL.md

@@ -77,6 +77,13 @@ Software Setup
 
 TODO: Mention the actual commands to execute.
 
+Running tests
+-------------
+
+Docker can be used to easily run tests in a reproducible environment:
+
+    docker build -t brmbar3 . && docker run --rm brmbar3 test
+
 Troubleshooting
 ---------------
 

brmbar3/docker-entrypoint.sh

@@ -0,0 +1,53 @@
+#!/bin/bash
+set -e
+
+# Start PostgreSQL service using sudo
+echo "Starting PostgreSQL..."
+sudo service postgresql start
+
+# Wait for PostgreSQL to start
+echo "Waiting for PostgreSQL to start..."
+until sudo -u postgres pg_isready; do
+  sleep 1
+done
+echo "PostgreSQL started"
+
+# Create PostgreSQL user if it doesn't exist (with database creation privileges)
+if ! sudo -u postgres psql -tAc "SELECT 1 FROM pg_roles WHERE rolname='brmuser'" | grep -q 1; then
+  echo "Creating PostgreSQL user brmuser with database creation privileges..."
+  sudo -u postgres createuser -d brmuser
+fi
+
+# Drop and recreate database to ensure clean state
+echo "Recreating database..."
+sudo -u postgres psql -c 'DROP DATABASE IF EXISTS brmbar;'
+createdb brmbar
+
+# Load base schema (following INSTALL.md approach)
+echo "Loading base schema..."
+psql brmbar < /app/SQL
+
+# Load schema files in order, stopping on first error
+echo "Loading schema files..."
+for f in /app/schema/[0-9]*-*.sql; do
+  echo "Loading schema file: $f"
+  if ! psql brmbar -f "$f"; then
+    echo "Error loading $f - stopping schema load process"
+    break
+  fi
+done
+
+if [ "$1" == "test" ]; then
+  echo "Running tests..."
+  
+  # Load test data
+  echo "Loading test data..."
+  psql brmbar < /app/SQL.test
+  
+  # Run test (as brmuser)
+  echo "Running python test..."
+  python3 /app/test--currency-rates.py
+else
+  # Run the specified command
+  exec "$@"
+fi