I have a fairly simple Logic App, messages are received from a Service Bus queue and an email is then sent using Send Grid.
Pretty straight forward.
Big believer in IaaC, so I wanted to create a deployment using Bicep for my Logic App and the Api Connections.
My Service Bus connection uses a Managed Identity, while my SendGrid connection uses the SendGrid ApiKey.
The SendGrid connection was no problem, I just passed in the ApiKey to my Bicep template as a parameterValues and all was good.
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resource sendGridConnection 'Microsoft.Web/connections@2016-06-01' = { name: '${prefix}sndgrdconn' location: location properties: { displayName: '${prefix}sndgrdconn' api: { id: '${subscription().id}/providers/Microsoft.Web/locations/${location}/managedApis/sendgrid' } parameterValues: { apiKey: sendGridApiKey } } } |
On to the Service Bus connection, which is where my real struggle began. The documentation is sketchy on how exactly to do this.
I stumbled around for a day or two until I came across the following articles:
- https://alessandromoura.azurewebsites.net/2022/04/28/creating-managed-identities-api-connections-for-logic-apps-in-bicep-arm
- https://github.com/Azure/bicep/issues/5516
With a couple of modifications to my Bicep file I was able to get it working.
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resource serviceBus 'Microsoft.ServiceBus/namespaces@2021-11-01' existing = { name: '${prefix}sb' } resource serviceBusConnection 'Microsoft.Web/connections@2016-06-01' = { name: '${prefix}sbconn' location: location properties: { displayName: '${prefix}sb' api: { id: '${subscription().id}/providers/Microsoft.Web/locations/${location}/managedApis/servicebus' } parameterValueSet: { name: 'managedIdentityAuth' values: { namespaceEndpoint: { value: 'sb://${serviceBus.name}.servicebus.windows.net' } } } } } |
Bicep will complain about the parameterValueSet property, but just ignore it and run the script anyways.
You can see the complete Bicep file at Adventures with Logic Apps: Bicep Deployment and API Connections … Ugh! (github.com).
As always, hope this helps a fellow developer!
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thanks for the blog post. great information! this is very helpful in making the bicep
template. After I create template, deploy to test, they find a bug or need more features. after I go back into the logic app and update, how do I get the workflow change into the template?