This adds a new google.protobuf.Timestamp last_updated field to BootstrapConfigDump, ListenersConfigDump, ClustersConfigDump, and RoutesConfigDump, representing the time when the configs under that category were last updated.
Additionally, the ProdSystemTimeSource::instance_ singleton is passed through several layers of interfaces. This is to make testing easier, but I would love to find a workaround for injecting a MockSystemTimeSource closer to the point where it is needed in the tests.
Risk Level: Low
Testing:
Several tests were modified / updated to compare the dumped time (always 1234567890 seconds since epoch time) by using a MockSystemTimeSource which always returned 1234567890.
Recreated PR based off #3641.
Signed-off-by: James Buckland <jbuckland@google.com>
Mirrored from https://github.com/envoyproxy/envoy @ a22d96046d5292d99bd7f3c4ccce5f05fb52ffc7
data-plane-api(CircleCI)
eecdd17b36