Add registry subcommand to verify if the node is properly registered

[tjanez]

SUMMARY

At the moment, instructions for verifying if a node is properly registered on the network are quite tedious and verbose.

Here is a copy from the current Node Operator Docs:

To ensure that your node is properly connected as a validator on the network,
you can check if you see the node's identity in the registry's node list.
Unfortunately, at this time this is a bit of a manual process.

Getting the Node's consensus_pub.pem Identity

cat /serverdir/node/consensus_pub.pem

This will look like:

-----BEGIN ED25519 PUBLIC KEY-----
s+vZ71qeZnlq0HmQSDBiWn2OKcy3fXOuPMu76/5GkUI=
-----END ED25519 PUBLIC KEY-----

You should search the registry's node list for this ID, e.g.
s+vZ71qeZnlq0HmQSDBiWn2OKcy3fXOuPMu76/5GkUI=, and set it as environment
variable:

NODE_CONSENSUS_ID="<NODE-CONSENSUS-ID>"

replacing <NODE_CONSENSUS_ID> with your node's consensus_pub.pem identity.

Searching for the Node's Identity

To check if the node is properly registered, run the following command:

oasis-node registry node list -v -a unix:/serverdir/node/internal.sock | grep $NODE_CONSENSUS_ID

If grep found your ID, then you're properly connected!

A registry node subcommand, e.g. registry node check-registered, would make this task a lot more convenient.

ISSUE TYPE

• Feature Idea

[Yawning]

This seems like bloat to me. There is a command to list currently registered nodes. There are multiple ways on any sensible system to search.