pod_name shouldn't be a part of the test app, it's purely k8s' idiom.
Originally server_id was intended for this purpose, but it was missed
when support for multiple server replicas added.
This replaces pod_name and server_id with hostname and improves
replica-specific log messages, so it's clear to what server
RPCs are issued.
In addition, now all RPC logs are annotated with the hostname:port,
so the destination is clear.
Before:
```
server_app.py:76] Setting health status to serving
grpc.py:60] RPC XdsUpdateHealthService.SetServing(request=Empty({}), timeout=90, wait_for_ready=True)
grpc.py:60] RPC Health.Check(request=HealthCheckRequest({}), timeout=90, wait_for_ready=True)
server_app.py:78] Server reports status: SERVING
```
After:
```
server_app.py:89] [psm-grpc-server-69bcf749c5-bg4x5] Setting health status to NOT_SERVING
grpc.py:72] [psm-grpc-server-69bcf749c5-bg4x5:52902] RPC XdsUpdateHealthService.SetNotServing(request=Empty({}), timeout=90, wait_for_ready=True)
grpc.py:72] [psm-grpc-server-69bcf749c5-bg4x5:52902] RPC Health.Check(request=HealthCheckRequest({}), timeout=90, wait_for_ready=True)
server_app.py:92] [psm-grpc-server-69bcf749c5-bg4x5] Health status status: NOT_SERVING
```
Similarly, this adds hostname to the client app, mainly for logging.
Separates xDS Test Client/Server (represent an interface to corresponding workload running remotely) from their runners (kubernetes-specific logic to provision the workloads with prerequisites).
This is a refactoring, should not change the behavior.
`kubernetes` library does not provide a way to configure the default socket timeout that will be used with `urllib3` it uses under the hood. And `urllib3` default socket timeout is infinity.
This PR sets the default socket timeout using python's `socket.setdefaulttimeout()` to 60 seconds.
This affects `urllib3` directly, and therefore `kubernetes`.
The changes is also picked up by the `google-api-python-client`, which does not use `urllib3` (it uses `httplib2`), but [respectes](https://googleapis.github.io/google-api-python-client/docs/epy/googleapiclient.http-module.html#build_http) `socket.setdefaulttimeout()`.
* [PSM Interop] Extend clean-up script to 2 other GKE clusters
* Use a safer apprach to invoke the cleanup script
* Handle the readonly issue
* Make sanity test happy
* Revert "Revert "[App Net] Switch Router to Mesh and Add unique string to Scope (#28145)" (#28176)"
This reverts commit cc968b2158.
* Allow scope to be None
* Add back references and scope field
* Set scope in router
* Reverse order of cleanup
* Add router_scope flag
* Use router_scope flag to create Router
* I apparently don't know how to brain
* Yapf
* Yeah, that can't be the default
* Remove debug print
* Remove impossible todos
* And another
* Switch from router-scope to config-scope
* Implement schema changes
* Use backend service URL
* Use CLH reference format to backend service
* I am an idiot
* *internal screaming*
* Try project number
* Why is this all awful
* Go back to trying project name
* Try cleaning things up
* Agh
* Address review comments
* Remove superfluous Optional type
Sergii Tkachenko
Lidi Zheng
Richard Belleville
Menghan Li
Hu Shuai