Service metadata - You can now set key/value data during service registration that will be accessible during the full lifecycle of the service. Service metadata can be used to specify information such as the version of the service, weights or priorities for external load balancing, or other static information that may have previously been stored in the K/V datastore that should be attached to the service directly.
As added in Consul 1.07
Service metadata - You can now set key/value data during service registration that will be accessible during the full lifecycle of the service. Service metadata can be used to specify information such as the version of the service, weights or priorities for external load balancing, or other static information that may have previously been stored in the K/V datastore that should be attached to the service directly.
https://www.hashicorp.com/blog/consul-1-0-7