feat(): Docker Container & Image for local development

.dockerignore

@@ -0,0 +1,35 @@
+# Git
+.git
+.gitignore
+.gitattributes
+
+# Build outputs
+build/
+*/build/
+.gradle/
+out/
+
+# IDE
+.idea/
+*.iml
+.vscode/
+*.swp
+*.swo
+*~
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Documentation
+*.md
+!README.md
+docs/
+
+# CI/CD
+.github/
+
+# Docker
+.dockerignore
+Dockerfile
+docker-compose.yml

Dockerfile

@@ -0,0 +1,40 @@
+# JavaSteam Development Container
+# Provides a consistent environment with Java 11 and all build tools
+
+FROM eclipse-temurin:11-jdk
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y \
+    git \
+    curl \
+    unzip \
+    && rm -rf /var/lib/apt/lists/*
+
+# Set working directory
+WORKDIR /workspace
+
+# Copy gradle wrapper and build files first (for better caching)
+COPY gradlew gradlew.bat ./
+COPY gradle ./gradle
+COPY build.gradle.kts settings.gradle.kts gradle.properties ./
+COPY gradle/libs.versions.toml ./gradle/
+
+# Copy buildSrc
+COPY buildSrc ./buildSrc
+
+# Download dependencies (cached layer)
+RUN ./gradlew --no-daemon dependencies || true
+
+# Copy source code
+COPY src ./src
+COPY javasteam-samples ./javasteam-samples
+COPY javasteam-cs ./javasteam-cs
+COPY javasteam-tf ./javasteam-tf
+COPY javasteam-dota2 ./javasteam-dota2
+COPY javasteam-deadlock ./javasteam-deadlock
+
+# Build the project (generates proto and steamlanguage classes)
+RUN ./gradlew build -x test -x signMavenJavaPublication --no-daemon
+
+# Keep container running for development
+CMD ["tail", "-f", "/dev/null"]

docker-compose.yml

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+version: '3.8'
+
+services:
+  javasteam-dev:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    container_name: javasteam-dev
+    volumes:
+      # Mount source code for live development
+      - .:/workspace
+      # Preserve gradle cache between container restarts
+      - gradle-cache:/root/.gradle
+    environment:
+      # Set Java options if needed
+      - JAVA_OPTS=-Xmx2g
+      # Steam credentials (optional - can be passed at runtime)
+      - STEAM_USER=${STEAM_USER:-}
+      - STEAM_PASS=${STEAM_PASS:-}
+    working_dir: /workspace
+    stdin_open: true
+    tty: true
+    # Override command for interactive shell
+    command: /bin/bash
+
+volumes:
+  gradle-cache:
+    driver: local

javasteam-samples/build.gradle.kts

@@ -1,5 +1,6 @@
 plugins {
     `java-library`
+    application
 }
 
 repositories {
@@ -24,3 +25,14 @@ dependencies {
     implementation(libs.zstd) // Content Downloading.
     implementation(libs.xz) // Content Downloading.
 }
+
+// Allow running samples from command line
+// Usage: ./gradlew :javasteam-samples:run -PmainClass=<fully.qualified.ClassName> --args="username password"
+application {
+    mainClass.set(project.findProperty("mainClass") as String? ?: "in.dragonbra.javasteamsamples._000_authentication.SampleLogonAuthentication")
+}
+
+// Enable stdin for interactive 2FA input
+tasks.named<JavaExec>("run") {
+    standardInput = System.`in`
+}

run-sample.sh

@@ -0,0 +1,65 @@
+#!/bin/bash
+# Helper script to run JavaSteam samples inside Docker container
+
+set -e
+
+if [ -z "$1" ]; then
+    echo "Usage: ./run-sample.sh <sample_number> [username] [password]"
+    echo "Example: ./run-sample.sh 001 myuser mypass"
+    echo ""
+    echo "Available samples:"
+    echo "  000 - Authentication"
+    echo "  001 - Authentication with QR Code"
+    echo "  015 - Achievements"
+    echo "  020 - Friends"
+    echo ""
+    echo "If username/password not provided, will use STEAM_USER and STEAM_PASS env vars"
+    echo "Note: You will be prompted for 2FA code interactively after login attempt"
+    exit 1
+fi
+
+SAMPLE_NUM=$1
+USERNAME=$2
+PASSWORD=$3
+
+if [ -z "$USERNAME" ] || [ -z "$PASSWORD" ]; then
+    echo "Error: Steam credentials not provided"
+    echo "Either pass them as arguments or set STEAM_USER and STEAM_PASS environment variables"
+    exit 1
+fi
+
+# Map sample numbers to class names
+case $SAMPLE_NUM in
+    "000")
+        SAMPLE_CLASS="in.dragonbra.javasteamsamples._000_authentication.SampleLogonAuthentication"
+        ;;
+    "001")
+        SAMPLE_CLASS="in.dragonbra.javasteamsamples._001_authenticationwithqrcode.SampleLogonAuthenticationQRCode"
+        ;;
+    "015")
+        SAMPLE_CLASS="in.dragonbra.javasteamsamples._015_achievements.SampleAchievements"
+        ;;
+    "020")
+        SAMPLE_CLASS="in.dragonbra.javasteamsamples._020_friends.SampleFriends"
+        ;;
+    *)
+        echo "Unknown sample number: $SAMPLE_NUM"
+        exit 1
+        ;;
+esac
+
+echo "Building project..."
+./gradlew :javasteam-samples:classes --no-daemon
+
+echo ""
+echo "Running sample $SAMPLE_NUM: $SAMPLE_CLASS"
+echo "Username: $USERNAME"
+echo "========================================"
+echo ""
+
+# Run the sample with interactive stdin for 2FA codes
+./gradlew :javasteam-samples:run \
+    -PmainClass="$SAMPLE_CLASS" \
+    --args="$USERNAME $PASSWORD" \
+    --console=plain \
+    --no-daemon