Dockerfile

# Build stage
FROM node:22-alpine AS builder

WORKDIR /app

# Copy package files
COPY package*.json ./

# Install dependencies
RUN npm ci

# Copy source code
COPY tsconfig.json ./
COPY src ./src

# Build TypeScript
RUN npm run build

# Production stage
FROM node:22-alpine AS production

# Add labels for container metadata
ARG VERSION=dev
ARG COMMIT_SHA=unknown
LABEL org.opencontainers.image.version="${VERSION}" \
      org.opencontainers.image.revision="${COMMIT_SHA}" \
      org.opencontainers.image.title="ActionsPulse" \
      org.opencontainers.image.description="Real-time GitHub Actions observability MCP server" \
      org.opencontainers.image.source="https://github.com/tsviz/github-mcp-server-devops" \
      io.modelcontextprotocol.server.name="io.github.tsviz/actions-pulse"

WORKDIR /app

# Create non-root user for security
RUN addgroup -g 1001 -S nodejs && \
    adduser -S nodejs -u 1001

# Copy package files and install production dependencies only
COPY package*.json ./
RUN npm ci --only=production && npm cache clean --force

# Copy built application from builder stage
COPY --from=builder /app/dist ./dist

# Set ownership to non-root user
RUN chown -R nodejs:nodejs /app

# Switch to non-root user
USER nodejs

# Expose port if needed (MCP typically uses stdio, but expose for health checks)
EXPOSE 3000

# Set environment variables
ENV NODE_ENV=production

# Start the application
CMD ["node", "dist/index.js"]