gcp-cloud-runlisted

# GCP Cloud Run Specialized skill for building production-ready serverless applications on GCP. Covers Cloud Run services (containerized), Cloud Run Functions (event-driven), cold start optimization, and event-driven architecture with Pub/Sub. ## Principles - Cloud Run for containers, Functions for simple event handlers - Optimize for cold starts with startup CPU boost and min instances - Set concurrency based on workload (start with 8, adjust) - Memory includes /tmp filesystem - plan accordingly - Use VPC Connector only when needed (adds latency) - Containers should start fast and be stateless - Handle signals gracefully for clean shutdown ## Patterns ### Cloud Run Service Pattern Containerized web service on Cloud Run **When to use**: Web applications and APIs,Need any runtime or library,Complex services with multiple endpoints,Stateless containerized workloads ```dockerfile # Dockerfile - Multi-stage build for smaller image FROM node:20-slim AS builder WORKDIR /app COPY package*.json ./ RUN npm ci --only=production FROM node:20-slim WORKDIR /app # Copy only production dependencies COPY --from=builder /app/node_modules ./node_modules COPY src ./src COPY package.json ./ # Cloud Run uses PORT env variable ENV PORT=8080 EXPOSE 8080 # Run as non-root user USER node CMD ["node", "src/index.js"] ``` ```javascript // src/index.js const express = require('express'); const app = express(); app.use(express.json()); // Health check endpoint app.get('/health', (req, res