Document Traffic Block

[Kemi-Elizabeth]

Where on docs.platform.sh should be changed?

1. In the Enterprise Overages page put in a note about how users can monitor their usage with the traffic block - it can go just before the overage prices table. As the traffic block metrics are shown only if the customer has an active Fastly CDN configuration.

2. Put a 'Monitor CDN metrics' section in the managed Fastly page that has the same information as what we would put in the enterprise overages page about traffic.

3. Potentially pop a note in the [monitor billing Upsun page] (https://docs.upsun.com/administration/billing/monitor-billing.html) to let users know that they monitor their billing via the block in console. Just for context, a block similar to the traffic metrics block will be available on Upsun too, but on Upsun there is no traffic overage, so users will just billed on their usage. So for Upsun, this will be referred to as a Usage metrics block. Whereas on Platform it will be a Traffic metrics block.

4. Add a short message to the monitor your billing information page. Specifically, in the tab Accumulated resource usage estimate, below the last sentence (All items used for the calculation are displayed in the Overview tab.). The message should say that traffic consumption can also be consulted in the project page. Alternatively, this message can go at the end of the page, in the section Track resource usage on a project.

What exactly should be updated?

https://docs.platform.sh/domains/cdn/managed-fastly.html and https://docs.platform.sh/administration/pricing.html#enterprise-overages and potentially monitor billing Upsun page

Additional context

https://linear.app/platformsh/issue/PROD-339/document-traffic-block#comment-d9cee419