consul: add scope:main to tags by default

Without scope we can't select which metrics we want to collect.
This is especially important for `eth2.prod` which has it's own
Prometheus instance and its metrics should not go to our main cluster.

Signed-off-by: Jakub Sokołowski <jakub@status.im>

defaults/main.yml

@@ -116,8 +116,10 @@ geth_public_addr: '{{ ansible_host }}'
 # Consul config
 geth_consul_enabled: true
 geth_consul_service_name: 'geth-{{ geth_network_name }}'
+geth_consul_scope: 'main'
 geth_consul_default_tags:
-  - geth
+  - 'geth'
+  - 'scope:{{ geth_consul_scope }}'
   - '{{ env }}.{{ stage }}'
   - '{{ geth_network_name }}'
 geth_consul_extra_tags: []