Hi Alan,
Here is a sample for a single tenant logic app that you can deploy via Azure DevOps: https://github.com/Azure/logicapps/tree/master/azure-devops-sample
Here's a doc that has more details on that sample: https://video2.skills-academy.com/en-us/azure/logic-apps/set-up-devops-deployment-single-tenant-azure-logic-apps?tabs=github
Hopefully that helps :)