Cherry-pick #16518 to 7.x: Update redis host settings docs

auditbeat/auditbeat.reference.yml

@@ -788,6 +788,8 @@ output.elasticsearch:
   # The list of Redis servers to connect to. If load-balancing is enabled, the
   # events are distributed to the servers in the list. If one server becomes
   # unreachable, the events are distributed to the reachable servers only.
+  # The hosts setting supports redis and rediss urls with custom password like
+  # redis://:password@localhost:6379.
   #hosts: ["localhost:6379"]
 
   # The name of the Redis list or channel the events are published to. The

filebeat/filebeat.reference.yml

@@ -1493,6 +1493,8 @@ output.elasticsearch:
   # The list of Redis servers to connect to. If load-balancing is enabled, the
   # events are distributed to the servers in the list. If one server becomes
   # unreachable, the events are distributed to the reachable servers only.
+  # The hosts setting supports redis and rediss urls with custom password like
+  # redis://:password@localhost:6379.
   #hosts: ["localhost:6379"]
 
   # The name of the Redis list or channel the events are published to. The

heartbeat/heartbeat.reference.yml

@@ -932,6 +932,8 @@ output.elasticsearch:
   # The list of Redis servers to connect to. If load-balancing is enabled, the
   # events are distributed to the servers in the list. If one server becomes
   # unreachable, the events are distributed to the reachable servers only.
+  # The hosts setting supports redis and rediss urls with custom password like
+  # redis://:password@localhost:6379.
   #hosts: ["localhost:6379"]
 
   # The name of the Redis list or channel the events are published to. The

journalbeat/journalbeat.reference.yml

@@ -726,6 +726,8 @@ output.elasticsearch:
   # The list of Redis servers to connect to. If load-balancing is enabled, the
   # events are distributed to the servers in the list. If one server becomes
   # unreachable, the events are distributed to the reachable servers only.
+  # The hosts setting supports redis and rediss urls with custom password like
+  # redis://:password@localhost:6379.
   #hosts: ["localhost:6379"]
 
   # The name of the Redis list or channel the events are published to. The

libbeat/_meta/config.reference.yml.tmpl

@@ -669,6 +669,8 @@ output.elasticsearch:
   # The list of Redis servers to connect to. If load-balancing is enabled, the
   # events are distributed to the servers in the list. If one server becomes
   # unreachable, the events are distributed to the reachable servers only.
+  # The hosts setting supports redis and rediss urls with custom password like
+  # redis://:password@localhost:6379.
   #hosts: ["localhost:6379"]
 
   # The name of the Redis list or channel the events are published to. The

libbeat/outputs/redis/docs/redis.asciidoc

@@ -45,6 +45,12 @@ distributed to the servers in the list. If one server becomes unreachable, the e
 distributed to the reachable servers only. You can define each Redis server by specifying
 `HOST` or `HOST:PORT`. For example: `"192.15.3.2"` or `"test.redis.io:12345"`. If you
 don't specify a port number, the value configured by `port` is used.
+Configure each Redis server with an `IP:PORT` pair or with a `URL`. For
+example: `redis://localhost:6379` or `rediss://localhost:6379`.
+URLs can include a server-specific password. For example: `redis://:password@localhost:6379`.
+The `redis` scheme will disable the `ssl` settings for the host, while `rediss`
+will enforce TLS.  If `rediss` is specified and no `ssl` settings are
+configured, the output uses the system certificate store.
 
 ===== `index`
 

metricbeat/metricbeat.reference.yml

@@ -1480,6 +1480,8 @@ output.elasticsearch:
   # The list of Redis servers to connect to. If load-balancing is enabled, the
   # events are distributed to the servers in the list. If one server becomes
   # unreachable, the events are distributed to the reachable servers only.
+  # The hosts setting supports redis and rediss urls with custom password like
+  # redis://:password@localhost:6379.
   #hosts: ["localhost:6379"]
 
   # The name of the Redis list or channel the events are published to. The

packetbeat/packetbeat.reference.yml

@@ -1210,6 +1210,8 @@ output.elasticsearch:
   # The list of Redis servers to connect to. If load-balancing is enabled, the
   # events are distributed to the servers in the list. If one server becomes
   # unreachable, the events are distributed to the reachable servers only.
+  # The hosts setting supports redis and rediss urls with custom password like
+  # redis://:password@localhost:6379.
   #hosts: ["localhost:6379"]
 
   # The name of the Redis list or channel the events are published to. The

winlogbeat/winlogbeat.reference.yml

@@ -711,6 +711,8 @@ output.elasticsearch:
   # The list of Redis servers to connect to. If load-balancing is enabled, the
   # events are distributed to the servers in the list. If one server becomes
   # unreachable, the events are distributed to the reachable servers only.
+  # The hosts setting supports redis and rediss urls with custom password like
+  # redis://:password@localhost:6379.
   #hosts: ["localhost:6379"]
 
   # The name of the Redis list or channel the events are published to. The

x-pack/auditbeat/auditbeat.reference.yml

@@ -839,6 +839,8 @@ output.elasticsearch:
   # The list of Redis servers to connect to. If load-balancing is enabled, the
   # events are distributed to the servers in the list. If one server becomes
   # unreachable, the events are distributed to the reachable servers only.
+  # The hosts setting supports redis and rediss urls with custom password like
+  # redis://:password@localhost:6379.
   #hosts: ["localhost:6379"]
 
   # The name of the Redis list or channel the events are published to. The

x-pack/filebeat/filebeat.reference.yml

@@ -2039,6 +2039,8 @@ output.elasticsearch:
   # The list of Redis servers to connect to. If load-balancing is enabled, the
   # events are distributed to the servers in the list. If one server becomes
   # unreachable, the events are distributed to the reachable servers only.
+  # The hosts setting supports redis and rediss urls with custom password like
+  # redis://:password@localhost:6379.
   #hosts: ["localhost:6379"]
 
   # The name of the Redis list or channel the events are published to. The

x-pack/metricbeat/metricbeat.reference.yml

@@ -1713,6 +1713,8 @@ output.elasticsearch:
   # The list of Redis servers to connect to. If load-balancing is enabled, the
   # events are distributed to the servers in the list. If one server becomes
   # unreachable, the events are distributed to the reachable servers only.
+  # The hosts setting supports redis and rediss urls with custom password like
+  # redis://:password@localhost:6379.
   #hosts: ["localhost:6379"]
 
   # The name of the Redis list or channel the events are published to. The

x-pack/winlogbeat/winlogbeat.reference.yml

@@ -714,6 +714,8 @@ output.elasticsearch:
   # The list of Redis servers to connect to. If load-balancing is enabled, the
   # events are distributed to the servers in the list. If one server becomes
   # unreachable, the events are distributed to the reachable servers only.
+  # The hosts setting supports redis and rediss urls with custom password like
+  # redis://:password@localhost:6379.
   #hosts: ["localhost:6379"]
 
   # The name of the Redis list or channel the events are published to. The