chore(l1): filter instances in grafana through (#5088)

**Motivation**

We want to filter instances based on their current network in our
grafana Dashboard

**Description**

This PR reorder variables and make instance match the current network,
also fixes an issue with duplicated pie charts due to more than one
instance locally (which was causing issues also for this change) and is
now solved.

Closes #5087, #5049

Author: rodrigo-o

metrics/docker-compose-metrics-l1.overrides.yaml

@@ -31,3 +31,5 @@ services:
       - ./provisioning/grafana/dashboards:/etc/grafana/provisioning/dashboards
     environment:
       - GF_SECURITY_ADMIN_PASSWORD=admin
+    extra_hosts:
+      - "host.docker.internal:host-gateway"

metrics/provisioning/grafana/dashboards/common_dashboards/ethrex_l1_perf.json

@@ -2496,35 +2496,37 @@
           "text": "",
           "value": ""
         },
-        "definition": "label_values({__name__=~\"(gigagas|eth_con_beacon_slot)\"},instance)",
+        "definition": "label_values(eth_con_spec_config_name,name)",
         "includeAll": true,
         "multi": true,
-        "name": "instance",
+        "name": "network",
         "options": [],
         "query": {
           "qryType": 1,
-          "query": "label_values({__name__=~\"(gigagas|eth_con_beacon_slot)\"},instance)",
+          "query": "label_values(eth_con_spec_config_name,name)",
           "refId": "PrometheusVariableQueryEditor-VariableQuery"
         },
         "refresh": 1,
-        "regex": "/^(?<text>[^:]+)(?::\\d+)?$/",
+        "regex": "",
         "type": "query"
       },
       {
         "current": {
           "text": "",
           "value": ""
         },
-        "definition": "label_values(eth_con_spec_config_name,name)",
-        "name": "network",
+        "definition": "label_values(eth_con_spec_config_name{name=~\"$network\"},instance)",
+        "includeAll": true,
+        "multi": true,
+        "name": "instance",
         "options": [],
         "query": {
           "qryType": 1,
-          "query": "label_values(eth_con_spec_config_name,name)",
+          "query": "label_values(eth_con_spec_config_name{name=~\"$network\"},instance)",
           "refId": "PrometheusVariableQueryEditor-VariableQuery"
         },
         "refresh": 1,
-        "regex": "",
+        "regex": "/^(?<text>[^:]+)(?::\\d+)?$/",
         "type": "query"
       },
       {
@@ -2568,4 +2570,4 @@
   "title": "Ethrex L1 - Perf Dashboard",
   "uid": "beoru4vp59yiof",
   "version": 29
-}
+}

metrics/provisioning/prometheus/prometheus_l1_sync_docker.yaml

@@ -5,6 +5,12 @@ scrape_configs:
   - job_name: "ethrex L1"
     static_configs:
       - targets: ["host.docker.internal:3701"]
+        labels:
+          # We need to collapse all the instances under the same name
+          # for the dashboard to work properly locally as it works distributed
+          # the port is needed just to match the regex in the dashboard, so
+          # 0000 is just a placeholder.
+          instance: "localhost:0000"
     scrape_interval: 10s
     metrics_path: /metrics
 
@@ -17,11 +23,23 @@ scrape_configs:
   - job_name: "ethereum-metrics-exporter"
     static_configs:
       - targets: ["ethereum-metrics-exporter:9093"]
+        labels:
+          # We need to collapse all the instances under the same name
+          # for the dashboard to work properly locally as it works distributed
+          # the port is needed just to match the regex in the dashboard, so
+          # 0000 is just a placeholder.
+          instance: "localhost:0000"
     scrape_interval:  5s
     metrics_path: /metrics
 
   - job_name: 'node_exporter'
     static_configs:
       - targets: ['host.docker.internal:9122']
+        labels:
+          # We need to collapse all the instances under the same name
+          # for the dashboard to work properly locally as it works distributed
+          # the port is needed just to match the regex in the dashboard, so
+          # 0000 is just a placeholder.
+          instance: "localhost:0000"
     scrape_interval:  5s
     metrics_path: /metrics