This commit widens the egress match port range from [10000, 11000) to
[10000, 30000). The old limit of 1000 ports was arbitrary, and users
with many egress Services reach it. The new range ends below the Linux
ephemeral port range, so match ports do not collide with ports that the
proxy itself uses.
The port count also no longer includes the health check port, which
lowered the real limit by one. A new test covers allocation up to the
limit.
Fixes#22195
Change-Id: Ie20feb2744b40dce052d3732f9f486b1bff31b32
Signed-off-by: David Bond <davidsbond93@gmail.com>
David Bond
db0993902c