Fix not to allocate addresses from pools while its pools are deleting #284
Description
What
Coil allocates addresses from pools while its pools are deleting.
This means that even if the pool has deletionTimestamp, coil allocates some address from its pool.
How
We fix not to allocate new addresses from deleting pools.
Checklist
- Finish implentation of the issue
- Test all functions
- Have enough logs to trace activities
- Notify developers of necessary actions