deployment-openvidu-pro: Minor fix configuring different openvidu pro clusters with the same Elastic Stack

openvidu-server/deployments/pro/docker-compose/media-node/beats/filebeat.yml

@@ -19,6 +19,7 @@ processors:
   - add_fields:
       fields:
         ip: ${MEDIA_NODE_IP}
+        cluster-id: ${CLUSTER_ID}
 
 output:
   elasticsearch:

openvidu-server/deployments/pro/docker-compose/media-node/beats/metricbeat-elasticsearch.yml

@@ -5,7 +5,7 @@ metricbeat.modules:
     period: ${OPENVIDU_PRO_CLUSTER_LOAD_INTERVAL}s
     processes: ['.*']
     cpu.metrics: [normalized_percentages]
-fields: {ip: "${MEDIA_NODE_IP}"}
+fields: {ip: "${MEDIA_NODE_IP}", cluster-id: "${CLUSTER_ID}"}
 pipeline:
   queue.mem.events: 0
 setup.ilm.enabled: false

openvidu-server/deployments/pro/docker-compose/openvidu-server-pro/.env

@@ -71,6 +71,12 @@ OPENVIDU_PRO_CLUSTER_MODE=manual
 # Possibles values: aws, on_premise
 OPENVIDU_PRO_CLUSTER_ENVIRONMENT=on_premise
 
+# Unique identifier of your cluster. Each OpenVidu Server Pro instance corresponds to one cluster.
+# You can launch as many clusters as you want with your license key. 
+# Cluster ID will always be stored to disk so restarting OpenVidu Server Pro will keep the same previous cluster ID
+# if this configuration parameter is not given a distinct value.
+# OPENVIDU_PRO_CLUSTER_ID=
+
 # The desired number of Media Nodes on startup. First the autodiscovery process is performed.
 # If there are too many Media Nodes after that, they will be dropped until this number is reached.
 # If there are not enough, more will be launched.
@@ -85,7 +91,6 @@ OPENVIDU_PRO_CLUSTER_ENVIRONMENT=on_premise
 # Type: number >= 0
 # OPENVIDU_PRO_CLUSTER_LOAD_INTERVAL=
 
-
 # Whether to enable or disable autoscaling. With autoscaling the number of Media Nodes will
 # be automatically adjusted according to existing load
 # Values: true | false

openvidu-server/deployments/pro/docker-compose/openvidu-server-pro/beats/filebeat.yml

@@ -13,6 +13,9 @@ processors:
       fields: ["message"]
       target: "json"
       overwrite_keys: true
+  - add_fields:
+      fields:
+        cluster-id: ${OPENVIDU_PRO_CLUSTER_ID:undefined}
 
 output:
   elasticsearch:

openvidu-server/deployments/pro/docker-compose/openvidu-server-pro/docker-compose.yml

@@ -116,6 +116,8 @@ services:
         network_mode: host
         restart: always
         user: root
+        env_file:
+            - .env
         environment:
             - OPENVIDU_PRO_ELASTICSEARCH_HOST=${OPENVIDU_PRO_ELASTICSEARCH_HOST:-http://127.0.0.1:9200}
         volumes: