Workflow identities currently support ACL policies being applied
to a job ID within a namespace. With this update an ACL policy
can be applied to a namespace. This results in the ACL policy
being applied to all jobs within the namespace.
The original design for workload identities and ACLs allows for operators to
extend the automatic capabilities of a workload by using a specially-named
policy. This has shown to be potentially unsafe because of naming collisions, so
instead we'll allow operators to explicitly attach a policy to a workload
identity.
This changeset adds workload identity fields to ACL policy objects and threads
that all the way down to the command line. It also a new secondary index to the
ACL policy table on namespace and job so that claim resolution can efficiently
query for related policies.
