report
Infrastructure Migration Report
Infrastructure Migration Report
✅ Migration Complete
Migration completed on schedule with zero downtime. All 47 services running on GCP.
This report covers the infrastructure migration executed between January 15 and March 28, 2026.
Key Metrics
Performance Comparison
| Metric | Before (AWS) | After (GCP) | Change |
|---|---|---|---|
| P99 Latency | 245ms | 180ms | -26% |
| Monthly Cost | $34,200 | $28,100 | -18% |
| Deploy Time | 12 min | 4 min | -67% |
| Uptime | 99.95% | 99.99% | +0.04% |
Terraform Config
infra/main.tf
1resource "google_cloud_run_v2_service" "api" {
2 name = "mder-api"
3 location = "us-central1"
4
5 template {
6 containers {
7 image = "gcr.io/mder-prod/api:latest"
8 }
9 scaling {
10 min_instance_count = 2
11 max_instance_count = 100
12 }
13 }
14}⚠️ Lesson Learned
DNS propagation took 4 hours longer than expected. Reduce TTL to 60s at least 48 hours before cutover.
Migrate all 47 services
Update DNS records
Decommission AWS
Complete cost analysis
Archive CloudWatch logs