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docs/getting-started/estimating-costs.md

@@ -2,6 +2,9 @@
 layout: default
 ---
 
+NOTE: This is for informational purposes only. This doesn't account for all
+costs of operating. It gives an approximate sizing of the cost.
+
 # Estimating costs of hosting the Exposure Notifications Server
 
 This page explains how you might estimate the cost to deploy servers within the
@@ -36,6 +39,8 @@ From which we can derive:
 # Cloud Components and Pricing
 
 ## Cloud Run Costs
+https://cloud.google.com/run/pricing
+
 There are multiple containers needed for a complete deployment: 
 
 * Export Cleanup
@@ -54,25 +59,35 @@ Assuming we run ~4 containers constantly, which given the batch nature of many
 may be a high estimate, and assuming we use the currently default terraform
 resource limits of 2 CPU and 1G memory per container:
 
-Projected Monthly Cost: 30 * 4 * ((2 * $2.0736) + (1 * $0.215)) = $523.46
+**Projected Monthly Cost: 30 * 4 * ((2 * $2.0736) + (1 * $0.215)) = $523.46**
 
 ## SQL Database Costs
+https://cloud.google.com/sql/pricing
+
+The default size for SQL Database is configured to:
+* 8 vCPU
+* 30720 MB Memory
+* 256 GB SSD
+
 Configured Size in TF: "db-custom-8-30720" with 256GB Disk
+Projected Monthly Cost (CPU): 30 * ($0.1180 per vCPU Hour * 24) * 8 vCPU = $679.68
+Projected Monthly Cost (Memory): 30 * ($0.02 per GB Hour * 24) * 30 GB = $432
+Projected Monthly Cost (SSD): ($0.170 per GB/month) * 256 GB = $43.52
 
-Projected Monthly Cost: TBD
+**Project Monthly Cost: $679.68 + $432 + $43.52 = $1155.20**
 
 ## Storage Costs
 https://cloud.google.com/storage/pricing
 
 ### Data Storage Cost
 $0.026 per GB
 
-Projected Monthly Cost: ($0.026 / GB) * (0.00035 GB * 14 days) = $0 (fractional)
+**Projected Monthly Cost: ($0.026 / GB) * (0.00035 GB * 14 days) = $0 (fractional)**
 
 ### Network Usage Cost
 $0.12 per GB (egress)
 
-Projected Monthly Cost: ($0.12 / GB) * (1.75GB/day * 30 days) = $6.30
+**Projected Monthly Cost: ($0.12 / GB) * (1.75GB/day * 30 days) = $6.30**
 
 ### Operations Cost
 There are two tiers of operations with different billing.
@@ -84,11 +99,15 @@ Relevant operations from this include `INSERT`, `UPDATE`, and `LIST`. These
 will occur as part of batching of exposure keys. These operations will likely
 remain under 10,000 for storage as creation of files is batched.
 
-Projected Monthly Cost: $0.05
+**Projected Monthly Cost: ~$0.05**
 
 #### Class B
 $0.004 per 10,000 operations
 
 Relevant operations from this include `GET` requests for key batches.
 
-Projected Monthly Cost: .004/10,000 * 60 Million = $24.00
+**Projected Monthly Cost: 30 * ($0.004/10,000 Ops) * 5 Million Users = $60.00**
+
+## CDN Costs
+
+TBD