* backport of commit 4d45c672b3
* backport of commit 1e8797522e
* backport of commit 691dab71bd
* backport of commit 924d61fc04
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Co-authored-by: John Murret <john.murret@hashicorp.com>
This is being added so that metrics sent to HCP can be augmented with the source node's ID.
Opting not to add this to stats_tag out of caution, since it would increase the cardinality of metrics emitted by Envoy for all users.
There is no functional impact to Envoy expected from this change.
* Add support for envoy readiness flags
- add flags 'envoy-ready-bind-port` and `envoy-ready-bind-addr` on consul connect envoy to create a ready listener on that address.