Add OpenAI Marketing Limited product and subscription - this is to li…

[rmoreirao]

This pull request primarily introduces a new product openAiMarketingLimitedProduct in the apim-backend.bicep file and sets up related resources and policies. It also adds a policy in the product_policy_model_limit.xml file that restricts access based on the deployment-id.

Here are the key changes:

New resources in apim-backend.bicep:

• resource openAiMarketingLimitedProduct 'Microsoft.ApiManagement/service/products@2022-08-01': This new product named 'openAiMarketingLimited' is created for the Marketing team to use the OpenAI API. The product is published, does not require approval but requires subscription.

• resource openAiMarketingLimitedProductPolicy 'Microsoft.ApiManagement/service/products/policies@2020-12-01': This policy is linked to the openAiMarketingLimitedProduct and it loads its value from the product_policy_model_limit.xml file.

• resource openAiProductLink 'Microsoft.ApiManagement/service/products/apiLinks@2023-03-01-preview': This resource links the openAiMarketingLimitedProduct to the apimProxyApi.

• resource productSubscription 'Microsoft.ApiManagement/service/subscriptions@2021-04-01-preview': This resource sets up a subscription named 'MarketingProductSubscription' for the openAiMarketingLimitedProduct.

Policy changes in product_policy_model_limit.xml:

• A new policy is added that restricts access based on the deployment-id. If the deployment-id does not match 'gpt-turbo-3.5', a 'Not Authorized' response is returned.

[azureholic]

Productname can equal deploymentname. The product could be assigned to any subscription, not just to Marketing. This way its much more generic.

[rmoreirao]

Hi @azureholic , updated the Product to Gpt-35-Turbo

[iMicknl]

How would this work if you have a subscription for gpt-35-turbo and one for gpt-4? Looking at the policy, you can only have one model subscription per product?

[pascalvanderheiden]

@rmoreirao Thanks for your contribution. We'll take your suggestions into a seperate PR, covering the functional spit you mentioned and adding quote limits as well.