Design more tests for specific scenarios of edge computing

[fisherxu]

We need to do some designs for adding more tests especially for the specific scenarios of edge computing, eg:

• Application migration when the network is disconnected
• System stability when the network is unstable
• Run large-scale cluster tests periodically

We need add more test scenarios.

[stale]

Hello 👋 Looks like there was no activity on this issue for last 90 days.
Do you mind updating us on the status? Is this still reproducible or needed? If yes, just comment on this PR or push a commit. Thanks! 🤗
If there will be no activity for 60 days, this issue will be closed (we can always reopen an issue if we need!).

[stale]

Closing for now as there was no activity for last 60 days after marked as stale, let us know if you need this to be reopened! 🤗