This document provides a workbook for designing cloud architectures on Google Cloud. It includes sections for defining a case study, writing user personas and stories, designing microservices and APIs, choosing data storage options, networking, security, disaster recovery, and cost planning. The user is prompted to fill in details for their specific application in each section, with examples provided.

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Google Cloud
Architect Design and
Process Workbook

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1a. Defining your case study
Come up with a case study. Then fill in the next slide.
Examples:
● Online Banking Portal
● Ride sharing application (like Uber)
● Online shopping site
● Something else...

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1b. [Case Study Name Here]
Brief description:
List a few main features:
List roles of typical users:

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2a. Writing user personas
Create two user personas that describe typical users of your application.
Add a new slide for each persona.
Example persona:
Jocelyn is a busy working mom who wants to access MegaCorp Bank to check her account balances
and make sure that there are enough funds to pay for her kids' music and sport lessons. She also uses
the web site to automate payment of bills and see her credit account balances. Jocelyn wants to save
time and money, and she wants a credit card that gives her cash back.

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2b. Writing user stories
Create three user stories for the roles you defined earlier.
Create a new slide for each user story.
Example user story:
Balance Inquiry
As a checking account holder, I want to check my available balance at any time of day, so that I am sure
not to overdraw my account.

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3. Defining SLIs and SLOs
User story SLO SLI
Balance Inquiry Available 99.95% Fraction of 200 vs 500 HTTP responses from
API endpoint measured per day
Balance Inquiry 95% of requests complete in under 300 ms Time to last byte GET requests measured
every 10 seconds aggregated per minute
Based on the requirements of your case study, fill in the table on the next slide with SLOs and SLIs
as shown in the example below.

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3. Defining SLIs and SLOs
Based on the requirements of your case study, fill in the table below with SLOs and SLIs.
User story SLO SLI

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Web
UI
Mobile
UI
Auth
Service
Products
Service
Accounts
Service
Analytics
Service
Customer
Service Reporting
Service
Customer
Database
Accounts
Database
Data
Warehouse
4. Design microservices for your application
Draw a diagram on the next slide showing your application's microservices and their connections.
Below is an example.

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4. Design microservices for your application
Draw a diagram showing your application's microservices and their connections.

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5. Designing REST APIs
Service name Collections Methods
Account Service transactions list
deposit
withdraw
transfer
Fill in the table on the next slide with your services and their resources and operations as shown in
the example below.

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5. Designing REST APIs
Service name Collections Methods
Fill in the table with your services and their resources and operations.

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6. Defining storage characteristics
Service
Structured or
Unstructured
SQL or NoSQL
Strong or
Eventual
Consistency
Amount of
Data (MB, GB,
TB, PB, ExB)
Read only or
Read/Write
Account Service Structured SQL Strong GB Read/Write
On the next slide fill in the required storage features. Below is an example.

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6. Defining storage characteristics
Service
Structured or
Unstructured
SQL or NoSQL
Strong or
Eventual
Consistency
Amount of
Data (MB, GB,
TB, PB, ExB)
Read only or
Read/Write
Fill in the required storage features.

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7. Choosing Google Cloud Storage and Data Services
Service
Persistent
Disk
Cloud
Storage
Cloud
SQL
Firestore Cloud
Bigtable
Cloud
Spanner
BigQuery
Account
Service
X
On the next slide choose the Google Cloud storage products for each service.
Below is an example.

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7. Choosing Google Cloud Storage and Data Services
Choose the Google Cloud storage products for each service.
Service
Persistent
Disk
Cloud
Storage
Cloud
SQL
Firestore Cloud
Bigtable
Cloud
Spanner
BigQuery

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8a. Defining network characteristics for your services
Service
Internet facing
or Internal only
HTTP TCP UDP Multiregional?
Account Internal only X No
On the next slide fill in the required network features. Below is an example.

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8a. Defining network characteristics for your services
Service
Internet facing
or Internal only
HTTP TCP UDP Multi-Regional?
Fill in the required network features.

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8b. Select the load balancers for your services
Service
HTTP TCP UDP
Account X
On the next slide choose the Google Cloud load balancer product(s) for each service.
Below is an example.

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8b. Select the load balancers for your services
Service
HTTP TCP UDP
Choose the Google Cloud load balancer product(s) for each service.

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9. Diagramming your network
Auth
Service
UI
Products
Service
HTTPS
Global HTTP
Load Balancer
Products
Database
Customer
Service
Customer
Database
Accounts
Service
Accounts
Database
Third-Party VPC
On the next slide draw a diagram that depicts how your services will communicate over the network.
Include regions, zones, load balancers, CDN, and DNS if applicable. Below is an example.

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9. Diagramming your network
Draw a diagram that depicts how your services will communicate over the network. Include regions,
zones, load balancers, CDN, and DNS if applicable.

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10. Designing reliable, scalable applications
us-east-1
us-central1
UI
us-central1-a
UI
us-central1-b
us-central1-a
Orders
Service
Inventory
Service
us-central1-b
TCP Load
Balancer
us-central-1
Analytics
Service
Even if some service is down, we want the web frontend of our application to be available nearly all the
time. We also want the website to be fast with very low latency to users all over the world. On the next
slide, draw a diagram that depicts how we can achieve this using Google Cloud services. Below is an
example.
HTTPS
HTTP Global
Load Balancer
Cloud
SQL
Firestore
BigQuery
Inventory
Service
Failover
Orders
Service
Multi-regional Cloud Storage bucket for backups

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10. Designing reliable, scalable applications
Even if some service is down, we want the web frontend of our application to be available nearly all the
time. We also want the website to be fast with very low latency to users all over the world. Draw a
diagram that depicts how we can achieve this using Google Cloud services.

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11a. Disaster recovery scenario
You've deployed for high availability by replicating resources in multiple zones. However, to meet
regulatory requirements, you need a plan to recover from a disaster that brings down the entire region.
The current architecture is depicted below. On the next slide, create a plan to bring up your application
in another region if your main region is down. Below is an example.
us-central1-a
Orders
Service
Inventory
Service
us-central1-b
TCP Load
Balancer
us-central-1
Analytics
Service
Cloud
SQL
Firestore
BigQuery
Products
Service
Failover
Accounts
Service

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11a. Disaster recovery scenario
You've deployed for high availability by replicating resources in multiple zones. However, to meet
regulatory requirements, you need a plan to recover from a disaster that brings down the entire region.
The current architecture is depicted on the previous slide. Create a plan to bring up your application in
another region if your main region is down.

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11b. Service disaster recovery scenarios
Service Scenario
Recovery Point
Objective
Recovery Time
Objective
Priority
Ratings Service Programmer deleted
all ratings
accidentally
24 hours 1 hour Med
Orders Service Orders database
crashes
0 (can’t lose any
data)
2 minutes High
Write a high-level list of possible scenarios on the next slide. Below is an example.

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11b. Service disaster recovery scenarios
Service Scenario
Recovery Point
Objective
Recovery Time
Objective
Priority
Write a high-level list of possible scenarios.

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11c. Resource disaster recovery plans
Resource Backup Strategy Backup Location Recovery Procedure
Ratings Database Daily automated backups Multi-Regional Cloud
Storage Bucket
Run Restore Script
Orders Database Failover replica plus daily
backups
Multi-zone deployment Automated
For each scenario, fill in the table on the next slide. Below is an example.

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11c. Resource disaster recovery plans
Resource Backup Strategy Backup Location Recovery Procedure
For each scenario, fill in the table.

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12. Modeling secure Google Cloud services
Draw a diagram on the next slide that depicts how you will secure your services. Include firewalls, IAM
roles, service accounts and network resources as appropriate. Below is an example.
HTTPS
Firewall Rules:
Allow HTTPS from 0.0.0.0/0
Allow SSH from known sources
Subnets:
us-central1
us-east1
Custom VPC
Google Cloud Armor Block
denied IPs
HTTP
Global Load Balancer

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12. Modeling secure Google Cloud services
Draw a diagram that depicts how you will secure your services. Include firewalls, IAM roles, service
accounts and network resources as appropriate.

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13. Cost estimating and planning
Service name Google Cloud Resource Cost
Accounts Cloud SQL $574.71/month
Use the pricing calculator to determine and record on the next slide the cost of your microservices.
Below is an example.

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13. Cost estimating and planning
Service name Google Cloud Resource Cost
Use the pricing calculator to determine and record the cost of your microservices.