* Shorten object name to avoid DNS issue defined (RFC 1035)
In serving, when running e2e test after changing the domainTempalte to
`{{.Name}}-{{.Namespace}}.{{Domain}}`, some tests failed with
following error:
```
Retrying for DNS error: Get http://service-to-service-call-via-activator-a-disabled-qgoluwzd-serving-tests.apps.ci-op-y42hx5lj-23b3e.origin-ci-int-aws.dev.rhcloud.com: dial tcp: lookup service-to-service-call-via-activator-a-disabled-qgoluwzd-serving-tests.apps.ci-op-y42hx5lj-23b3e.origin-ci-int-aws.dev.rhcloud.com: no such host
```
This is because DNS
label(`service-to-service-call-via-activator-a-disabled-qgoluwzd-serving-tests`)
became longer than 63 characters (RFC 1035).
To fix it, this patch changes the object name to less than 35
characters.
Note, the `35` is estimated by `Max(63) - (namespace(23) + buffer(5))`.
* Use kmeta.ChildName
Working to introduce structured logging to our tests. See #907
This work allows these test functions to be called by objects other
than *testing.T. The t.Error() calls are made compatible with
structured logging (wrapping Zap sugared logger calls) or code using
testing.T.
Chi Zhang
Kenjiro Nakayama
coryrc
Matt Moore