[FAB-3957] /examples/cluster: Reduce logging chatter

Defaults are still very chatty.  This patch tunes everything
down to WARNING and explicitly sets some components that were
missing.

Fixes FAB-3957

Change-Id: I9194e433fdcc7cdfe8bc5f6accb00ee7abeb143d
Signed-off-by: Greg Haskins <[email protected]>

Author: ghaskins

examples/cluster/compose/peer-base/peer-base.yaml

@@ -5,7 +5,7 @@ services:
     dns_search: .
     environment:
       - CORE_PEER_TLS_ENABLED=${TLS_ENABLED}
-      - CORE_LOGGING_LEVEL=DEBUG
+      - CORE_LOGGING_LEVEL=WARNING
       - CORE_NEXT=true
       - CORE_PEER_ENDORSER_ENABLED=true
       - CORE_PEER_GOSSIP_BOOTSTRAP=peer1:7051

examples/cluster/config/core.yaml

@@ -37,6 +37,10 @@ logging:
     error:      warning
     msp:        warning
     gossip:     warning
+    grpc:       warning
+    ledger:     warning
+    policies:   warning
+    cauthdsl:   warning
 
     format: '%{color}%{time:2006-01-02 15:04:05.000 MST} [%{module}] %{shortfunc} -> %{level:.4s} %{id:03x}%{color:reset} %{message}'