Dj2695 Custom Copilot GCP Firebase Infrastructure

GCP/Firebase Infrastructure Management

Manage Firebase and Google Cloud Platform infrastructure using Terraform and Firebase CLI, with support for multi-environment deployments.

When to Use This Skill

• Setting up or modifying Firebase projects
• Creating or updating GCP resources (Cloud Functions, Firestore, Storage)
• Managing infrastructure across dev/staging/prod environments
• Deploying security rules for Firestore or Cloud Storage
• Configuring IAM permissions and secrets management
• Working with Terraform modules for GCP/Firebase

Prerequisites

Tools: Firebase CLI, Google Cloud CLI, Terraform

Authentication:

firebase login
gcloud auth login
gcloud auth application-default login

Multi-Environment Pattern

Environment Structure:

Core Workflows

Firebase Operations

# Setup project
firebase use <project-id>
firebase init

# Deploy services
firebase deploy --only firestore:rules
firebase deploy --only functions
firebase deploy  # All services

# Test locally
firebase emulators:start

Terraform Operations

cd terraform/environments/staging
terraform init
terraform plan
terraform apply

Secrets Management

GitHub: Settings → Secrets → Add (reference as ${{ secrets.NAME }})

GCP:

echo -n "value" | gcloud secrets create NAME --data-file=-``

## Best Practices

✅ **DO:**
- Use separate Firebase projects for each environment
- Test in staging before deploying to production
- Use `terraform plan` before `terraform apply`
- Store secrets in Secret Manager (not environment files)
- Apply least-privilege IAM permissions
- Version control Terraform state with remote backend
- Document environment-specific variables
- Use Firestore indexes for complex queries

❌ **DON'T:**
- Commit `.tfstate` files or secret values to git
- Hardcode environment-specific values in code
- Grant overly broad IAM permissions
- Deploy to production without staging verification
- Modify production infrastructure without review
- Skip `terraform plan` before applying changes

## Troubleshooting

| Issue | Solution |
|-------|----------|
| Firebase CLI not authenticated | Run `firebase login` |
| Terraform state locked | `terraform force-unlock <lock-id>` |
| Permission denied on deploy | Check IAM roles for service account |
| Security rules rejected | Test with emulator first: `firebase emulators:start` |
| Function deployment fails | Check logs: `firebase functions:log` |
| Secret not accessible | Verify Secret Manager IAM bindings |

## Quick Reference

**Firebase CLI:**
```bash
firebase projects:list                    # List projects
firebase use <project-id>                 # Switch project
firebase deploy --only <service>          # Deploy specific service
firebase functions:log                    # View function logs
firebase emulators:start                  # Start local emulators

Terraform:

terraform init                            # Initialize
terraform plan                            # Preview changes
terraform apply                           # Apply changes
terraform destroy                         # Destroy resources
terraform state list                      # List resources

gcloud:

gcloud projects list                      # List projects
gcloud config set project <project-id>    # Set active project
gcloud secrets list                       # List secrets
gcloud iam service-accounts list          # List service accounts

Detailed References

• Security Rules - Firestore and Storage rules examples
• IAM & Permissions - Service accounts and roles
• Terraform Patterns - Module structure and examples
• Secrets Management - Complete workflow

Context7 Resources

• Firebase Admin: @context7 /firebase/firebase-admin-node
• Google Cloud: @context7 /googleapis/google-cloud-node
• Terraform GCP: @context7 /hashicorp/terraform-provider-google Separate projects per environment, test in staging first, use terraform plan ❌ Don't commit .tfstate or secrets, grant minimal IAM permissions```bash

Firebase

firebase use firebase deploy --only firebase functions:log

Terraform

terraform plan terraform apply terraform state list

gcloud

gcloud config set project gcloud secrets list

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