Challenge 5: Online Cutover and Validation

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Introduction

Reconfigure the application to use the appropriate connection string and validate that the application is working

Description

You will initiate a database cutover in Azure DMS You will reconfigure the application to use a connection string that points to the Azure DB for PostgreSQL/MySQL. You will need to update the ContosoPizza/values-mysql.yaml or ContosoPizza/values-postgresql.yaml values file with the updated values for dataSourceURL, dataSourceUser and dataSourcePassword using the appropriate Azure DB values for PostgreSQL/MySQL:

appConfig:
  dataSourceURL: "jdbc url goes here" # your JDBC connection string goes here
  dataSourceUser: "user name goes here" # your database username goes here
  dataSourcePassword: "Password goes here!" # your database password goes here

Once you make your changes, you will need to run helm upgrade command again to see them in the Pizzeria web application:

• For MySQL:

helm upgrade --install mysql-contosopizza ./ContosoPizza -f ./ContosoPizza/values.yaml -f ./ContosoPizza/values-mysql.yaml
kubectl -n contosoappmysql rollout restart deployment contosopizza

Wait for a minute or two until the status field for the kubectl command below is “Running” and “READY” state is “1/1”.

Status field changes from “Terminating” to “ContainerCreating” and then to “Running”.

 kubectl -n contosoappmysql get pods

• PostgreSQL:

helm upgrade --install postgres-contosopizza ./ContosoPizza -f ./ContosoPizza/values.yaml -f ./ContosoPizza/values-postgresql.yaml
kubectl -n contosoapppostgres rollout restart deployment contosopizza

Wait for a minute or two until the status field for the command of kubectl is “Running” and “READY” state is “1/1”.

Status field changes from “Terminating” to “ContainerCreating” and then to “Running”.

 kubectl -n contosoapppostgres get pods

Success Criteria

• You have validated that the Pizzeria applications (one for PostgreSQL and one for MySQL) are working with the configuration change
• You can update the value of column “name” in table “ingredient” for any row. Change the name from “Onion” to “Shallot” and on the app, click on start building any pizza, and on the next page, click “Veggies” and at the lower left corner, see that “Shallot” appears with the picture of the onion.