request help: add auth for etcd

[moonming]

api7/lua-resty-etcd@7f95abf support etcd auth, do we need upgrade to etcd v3 first? @nic-chen

[membphis]

support etcd v3 is a big event. I hope we can start this step asap.

[shenal]

I can start working on this. But considering that V2-> V3 migration requires a data migration as well we might want to maintain these changes in a seperate branch. Any thoughts?

[membphis]

We are using etcd v2 now.
If you want to do this job, you can only support auth for etcd v2.

support etcd v3, we discuss it here: #1767

[membphis]

I think the hardest part of this work should be how to add test cases.
test::nginx is not very suitable for this case. @shenal

[shenal]

Ok thanks for the heads up