chore: setup docker for development #118

Author: hernanvicente

Dockerfile.dev

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+# Use Ruby 3.x with Alpine as base image for smaller size
+FROM ruby:3.4.1-alpine
+
+# Set environment variables for Rails
+ENV RAILS_ENV=development \
+    RACK_ENV=development \
+    BUNDLE_PATH=/usr/local/bundle \
+    BUNDLE_JOBS=4 \
+    BUNDLE_RETRY=3
+
+# Install system dependencies and development tools
+RUN apk add --no-cache \
+    build-base \
+    postgresql-dev \
+    git \
+    tzdata \
+    bash
+
+# Create and set working directory
+WORKDIR /app
+
+# Install Ruby dependencies
+COPY Gemfile Gemfile.lock ./
+RUN bundle install
+
+# Add bind mount point for code
+VOLUME /app
+
+# Port used by Rails server
+EXPOSE 3000
+
+# Configure entrypoint to run Rails
+#COPY entrypoint.dev.sh /usr/bin/
+RUN #chmod +x /usr/bin/entrypoint.dev
+ENTRYPOINT ["./bin/docker-entrypoint.dev"]
+
+# Start Rails server by default
+CMD ["bundle", "exec", "rails", "server", "-b", "0.0.0.0"]

bin/docker-entrypoint.dev

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+#!/bin/bash -e
+
+# Remove any existing server.pid file
+rm -f /app/tmp/pids/server.pid
+
+# Install new gems if any
+bundle check || bundle install
+
+# If running the rails server then create or migrate existing database
+./bin/rails db:prepare
+
+# Execute the main command passed to docker run
+exec "$@"

docker-compose.yml

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+version: '3'
+
+services:
+  app:
+    build:
+      dockerfile: Dockerfile.dev
+    ports:
+      - "3000:3000"
+    volumes:
+      - ./:/app
+      - ./config:/app/config
+    environment:
+      RAILS_ENV: development
+      DATABASE_USER: postgres
+      DATABASE_PASSWORD: password
+      DATABASE_NAME: skillrx_development
+      DATABASE_PORT: 5432
+      DATABASE_HOST: db
+    depends_on:
+      - db
+
+  db:
+    image: postgres:17-alpine
+    ports:
+      - "5432:5432"
+    volumes:
+      - db_data:/var/lib/postgresql/data
+    environment:
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: password
+      POSTGRES_DATABASE: skillrx_development
+
+volumes:
+  db_data:
+
+networks:
+  default:
+    name: skillrx_network