This commit adds support for FedRAMP environments. Cloudflared will
now dynamically configure the management hostname and API URL, switching
to FedRAMP-specific values like `management.fed.argotunnel.com` and `https://api.fed.cloudflare.com/client/v4`
when a FedRAMP endpoint is detected.
Key to this is an enhanced `ParseToken` function, which now includes an `IsFed()`
method to determine if a management token's issuer is `fed-tunnelstore`. This allows
cloudflared to correctly identify and operate within a FedRAMP context, ensuring
proper connectivity.
Closes TUN-9583
To help support users with environments that don't work well with the
DNS local resolver's automatic resolution process for local resolver
addresses, we introduce a flag to provide them statically to the
runtime. When providing the resolver addresses, cloudflared will no
longer lookup the DNS resolver addresses and use the user input
directly.
When provided with a list of DNS resolvers larger than one, the resolver
service will randomly select one at random for each incoming request.
Closes TUN-9473
## Summary
Within the scope of the FEDRamp High RM, it is necessary to detect if an user should connect to a FEDRamp colo.
At first, it was considered to add the --fedramp as global flag however this could be a footgun for the user or even an hindrance, thus, the proposal is to save in the token (during login) if the user authenticated using the FEDRamp Dashboard. This solution makes it easier to the user as they will only be required to pass the flag in login and nothing else.
* Introduces the new field, endpoint, in OriginCert
* Refactors login to remove the private key and certificate which are no longer used
* Login will only store the Argo Tunnel Token
* Remove namedTunnelToken as it was only used to for serialization
Closes TUN-8960
## Summary
This commit refactors some of the flags of cloudflared to their own module, so that they can be used across the code without requiring to literal strings which are much more error prone.
Closes TUN-8914
Kevin Marshall
Luis Neto
Devin Carr
João "Pisco" Fernandes