Add a draft implementation of Route Integrity

[mike1808]

Route Integrity Implementation

Refer to proposal doc for more information.

Implementation

It's a simple mutating admission controller which watches for pods in cf-workloads namespace and modifies the serviceAccountName field and creates the service account if it doesn't exist.

Links

• A Guide to Kubernetes Admission Controllers
• kubernetes/client-go simple example
• Route Integrity proposal

Co-authored-by: Nitya Dhanushkodi ndhanushkodi@pivotal.io

[cf-gitbot]

We have created an issue in Pivotal Tracker to manage this:

https://www.pivotaltracker.com/story/show/174182153

The labels on this github issue will be updated when the story is started.

[kauana]

We are closing the PR but keeping the route-integrity-draft branch as discussed here.