This patch establishes a v3alpha baseline API, by doing a simple copy of
v2[alpha] dirs and some sed-style heuristic fixups of BUILD dependencies
and proto package namespaces.
The objective is provide a baseline which we can compare the output from
tooling described in #8083 in later PRs, providing smaller visual diffs.
The core philosophy of the API migration is that every step will be
captured in a script (at least until the last manual steps),
api/migration/v3alpha.sh. This script will capture deterministic
migration steps, allowing v2[alpha] to continue to be updated until we
finalize v3.
There is likely to be significant changes, e.g. in addition to the work
scoped for v3, we might want to reduce the amount of API churn by
referring back to v2 protos where it makes sense. This will be done via
tooling in later PRs.
Part of #8083.
Risk level: Low
Testing: build @envoy_api//...
Signed-off-by: Harvey Tuch <htuch@google.com>
Mirrored from https://github.com/envoyproxy/envoy @ 085d72b490c124a02849812798f5513a8df9ae72
data-plane-api(CircleCI)