WIP: Note that restart is required for Consul reconfiguration

[NikolayS]

TODO

• check (or add) words about how to restart properly
• what is the exact list of params changing which requires a restart?

[NikolayS]

@CyberDem0n adjusted the text and marked token and consistency as not requiring a restart to apply a change.

What about etcd, zookeeper, and k8s parameters? Is it the same, a restart is needed when we need to change them?

[CyberDem0n]

For consul there is also dc that could be changed without a restart (not sure if somebody even using it).
The kubernetes configuration supposed to be static due to its nature and therefore restart is always required.
For etcd there is nothing yet what could be changed without a restart, but in the future username and password will be supported.
For zookeeper there is nothing to change without a restart.