Multi-region deployment in MLOps - Step-by-Step Execution

Process Flow - Multi-region deployment

Start Deployment

↓

Select Regions

↓

Deploy Model to Region 1

→Deploy Model to Region 2

↓

Verify Region 1

↓

Traffic Routing

↓

Deployment Complete

The deployment starts by selecting regions, then the model is deployed and verified in each region, followed by traffic routing and health monitoring to complete the deployment.

Execution Sample

MLOps

regions = ['us-east-1', 'eu-west-1']
for region in regions:
    deploy_model(region)
    verify_deployment(region)
routing_setup(regions)
monitor_health(regions)

This code deploys a model to multiple regions, verifies each deployment, sets up traffic routing, and starts health monitoring.

Process Table

Step	Action	Region	Result	Next Step
1	Select region	us-east-1	Region selected	Deploy model to us-east-1
2	Deploy model	us-east-1	Deployment success	Verify deployment in us-east-1
3	Verify deployment	us-east-1	Verification success	Deploy model to eu-west-1
4	Deploy model	eu-west-1	Deployment success	Verify deployment in eu-west-1
5	Verify deployment	eu-west-1	Verification success	Setup traffic routing
6	Setup traffic routing	all regions	Routing configured	Start health monitoring
7	Start health monitoring	all regions	Monitoring active	Deployment complete
8	End	-	-	All steps completed successfully

💡 All regions deployed and verified; traffic routing and monitoring configured; deployment complete.

Status Tracker

Variable	Start	After Step 3	After Step 5	After Step 6	Final
regions	['us-east-1', 'eu-west-1']	['us-east-1', 'eu-west-1']	['us-east-1', 'eu-west-1']	['us-east-1', 'eu-west-1']	['us-east-1', 'eu-west-1']
deployment_status	{}	{'us-east-1': 'success'}	{'us-east-1': 'success', 'eu-west-1': 'success'}	{'us-east-1': 'success', 'eu-west-1': 'success'}	{'us-east-1': 'success', 'eu-west-1': 'success'}
verification_status	{}	{'us-east-1': 'success'}	{'us-east-1': 'success', 'eu-west-1': 'success'}	{'us-east-1': 'success', 'eu-west-1': 'success'}	{'us-east-1': 'success', 'eu-west-1': 'success'}
routing_configured	false	false	false	true	true
monitoring_active	false	false	false	false	true

Key Moments - 3 Insights

Why do we verify deployment after deploying to each region instead of verifying all at the end?

Verifying after each deployment ensures that any issues are caught early for that specific region, as shown in steps 3 and 5 in the execution table.

What happens if deployment fails in one region?

The process would stop or retry for that region before moving on, but in this trace all deployments succeed as shown by 'Deployment success' in steps 2 and 4.

Why is traffic routing set up only after all regions are verified?

Traffic routing depends on all regions being ready to serve traffic, so it is configured after successful verification of all regions, as seen in step 6.

Visual Quiz - 3 Questions

Look at the execution table, what is the deployment status after step 4?

A {'us-east-1': 'success', 'eu-west-1': 'success'}

B {'us-east-1': 'success'}

C {}

D {'eu-west-1': 'success'}

💡 Hint

Check the 'deployment_status' variable in variable_tracker after step 4.

At which step does traffic routing get configured?

A Step 5

B Step 7

C Step 6

D Step 4

💡 Hint

Look at the 'Action' column in the execution_table for 'Setup traffic routing'.

If monitoring was not started, which variable would remain false in the variable tracker?

A verification_status

B monitoring_active

C routing_configured

D deployment_status

💡 Hint

Check the 'monitoring_active' row in variable_tracker for its final value.

Concept Snapshot

Multi-region deployment involves selecting multiple regions,
deploying the model to each region one by one,
verifying each deployment immediately,
then setting up traffic routing across regions,
and finally starting health monitoring to ensure stability.

Full Transcript

Multi-region deployment means putting your model in several places (regions) so users nearby get faster responses. First, you pick the regions. Then, you deploy the model to each region one at a time. After deploying to a region, you check if it works correctly before moving on. Once all regions have the model and are verified, you set up traffic routing to send user requests to the closest or healthiest region. Finally, you start monitoring the health of all regions to catch any problems early. This step-by-step approach helps catch issues early and keeps the service reliable.