iwhc("Injection Webhook")
    vwhc("Validation Webhook")
    nsc("Namespace Controller")
    ksd--"External Istiod"-->nsc
    ksd--"External Istiod"-->iwhc

    df("Discovery Filter")

    axc("Auto Export Controller")

    mcfg("Mesh Config")
    dfc("Default Revision Controller")
```

As you can see, the landscape of controllers is pretty extensive at this point.