Google Cloud Platform

Google Cloud services for scalable applications and data analytics.

When to Use

• Kubernetes workloads (GKE)
• Serverless containers (Cloud Run)
• Data analytics (BigQuery)
• Machine learning (Vertex AI)

Quick Start

// Cloud Function
import { HttpFunction } from "@google-cloud/functions-framework";

export const helloWorld: HttpFunction = (req, res) => {
  const name = req.query.name || "World";
  res.send(`Hello, ${name}!`);
};

Core Concepts

Cloud Storage

import { Storage } from "@google-cloud/storage";

const storage = new Storage();
const bucket = storage.bucket("my-bucket");

// Upload
await bucket.upload("local-file.pdf", {
  destination: "files/document.pdf",
  metadata: { contentType: "application/pdf" },
});

// Download
await bucket.file("files/document.pdf").download({
  destination: "downloaded.pdf",
});

// Signed URL
const [url] = await bucket.file("files/document.pdf").getSignedUrl({
  action: "read",
  expires: Date.now() + 3600 * 1000,
});

Firestore

import { Firestore } from "@google-cloud/firestore";

const db = new Firestore();

// Write
await db.collection("users").doc("123").set({
  name: "John",
  email: "john@example.com",
});

// Query
const snapshot = await db
  .collection("users")
  .where("status", "==", "active")
  .orderBy("createdAt", "desc")
  .limit(10)
  .get();

snapshot.forEach((doc) => console.log(doc.data()));

Common Patterns

Cloud Run Deployment

# cloudbuild.yaml
steps:
  - name: "gcr.io/cloud-builders/docker"
    args: ["build", "-t", "gcr.io/$PROJECT_ID/myapp", "."]

  - name: "gcr.io/cloud-builders/docker"
    args: ["push", "gcr.io/$PROJECT_ID/myapp"]

  - name: "gcr.io/cloud-builders/gcloud"
    args:
      - "run"
      - "deploy"
      - "myapp"
      - "--image=gcr.io/$PROJECT_ID/myapp"
      - "--region=us-central1"
      - "--platform=managed"

Best Practices

Do:

• Use service accounts with minimal permissions
• Enable Cloud Audit Logs
• Use VPC Service Controls
• Implement proper IAM bindings

Don’t:

• Use default service accounts
• Make buckets public
• Skip encryption
• Ignore billing alerts

Troubleshooting

References

• GCP Documentation
• Cloud Run