fixed migration description

README.md

@@ -137,11 +137,19 @@
               key: connectionString
     ...
 7. Deploy database
+    * Expose ``pv179-mssql-svc`` by setting ``type: LoadBalancer``
     * Execute ``kubectl apply -f .`` in ``./k8s/sqlserver``
+    * Get External IP of the service
+    ```powershell
+    kubectl get services
+    ```
     * Deploy migration on kubernetes-hosted database
     ```powershell
-    $env:DemoDockerDeployment_Database__ConnectionString="Data Source=pv179-mssql-svc.<YOUR_NAMESPACE>.svc.cluster.local;Database=demo;User Id=sa;Password=MyC0m9l&xP@ssw0rd;"
+    $env:DemoDockerDeployment_Database__ConnectionString="Data Source=<EXTERNAL_IP>,<SERVICE_PORT>;Database=demo;User Id=sa;Password=MyC0m9l&xP@ssw0rd;"
     cd .\Demo.DockerDeployment\Server\
     dotnet ef database update
     ```
+    * Revert the exposure ``pv179-mssql-svc`` by setting ``type: ClusterIP``
+    * Execute ``kubectl apply -f .`` in ``./k8s/sqlserver``
+    * NOTE: This is a dirty way of migrating. You can use K8s Jobs for migrations in cluster.
 8. Enjoy
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