Create the Azure resources required to support your bot
Your will need to create an Azure application registration to give your bot an identity it can use to access resources, and a bot application service to host the bot.
Register an Azure app
You can create the application registration by using the az ad app create Azure command-line interface (CLI) command, specifying a display name and password for your app identity. This command registers the app and returns its registration information, including a unique application ID that you will need in the following step.
Create a bot application service
Your bot requires a Bot Channels Registration resource, along with associated application service and application service plan. To create these resources, you can use the Azure resource deployment templates provided with the Bot Framework SDK template you used to create your bot. Just run the az deployment group create command, referencing the deployment template and specifying your bot application registration's ID (from the az ad app create command output) and the password you specified.
https://docs.microsoft.com/en-gb/learn/modules/design-bot-conversation-flow/5-deploy-bot