What should happen when domain expires

[alexvanin]

I suggest to discuss it there and then move issue to a proper repository.

All domains, including top level domains, have expiration parameter. One day sooner or later all domains will expire. Now NNS stores in domain records:

• external contract addresses,
• system contract addresses,
• container aliases.

According to the code, container alias should live for 1 week. Not sure it works this way, but anyway.

neofs-contract/container/container_contract.go

Line 79 in 70ae2c9

defaultExpire = 604800 // 1 week

I can't find any Renew invocation by alphabet nodes. I suppose alphabet nodes should create multi signed transaction and renew all available domains once in a while. If not, then I expect that one day the whole system is going to be completely broken. Are my concerns

Is it correct or am I mistaken somewhere?

[alexvanin]

@realloc @fyrchik Consider moving or creating new issue in the neofs-node to control renew process by Alphabet.

[alexvanin]

container zone is registered by container contract during deployment. Therefore admin of this zone is container contract itself. It means that renew method can be invoked only by container contract.

Consider adding Renew method in container contract that invokes renew method in NNS.

/cc @fyrchik

[roman-khimov]

We had this happen on mainnet (contract domain expiration, kills IR easily) and it required a manual fix, btw. The fix from #296 is just a ticking bomb for any installation.