windshaft logger by config param

config/environments/development.js.example

@@ -87,6 +87,7 @@ var config = {
     // there, in append mode. Otherwise stdout is used (default).
     // Log file will be re-opened on receiving the HUP signal
     ,log_filename: undefined
+    ,log_windshaft: true
     // Templated database username for authorized user
     // Supported labels: 'user_id' (read from redis)
     ,postgres_auth_user: 'development_cartodb_user_<%= user_id %>'

config/environments/production.js.example

@@ -87,6 +87,7 @@ var config = {
     // there, in append mode. Otherwise stdout is used (default).
     // Log file will be re-opened on receiving the HUP signal
     ,log_filename: 'logs/node-windshaft.log'
+    ,log_windshaft: true
     // Templated database username for authorized user
     // Supported labels: 'user_id' (read from redis)
     ,postgres_auth_user: 'cartodb_user_<%= user_id %>'

config/environments/staging.js.example

@@ -87,6 +87,7 @@ var config = {
     // there, in append mode. Otherwise stdout is used (default).
     // Log file will be re-opened on receiving the HUP signal
     ,log_filename: 'logs/node-windshaft.log'
+    ,log_windshaft: true
     // Templated database username for authorized user
     // Supported labels: 'user_id' (read from redis)
     ,postgres_auth_user: 'cartodb_staging_user_<%= user_id %>'

config/environments/test.js.example

@@ -87,6 +87,7 @@ var config = {
     // there, in append mode. Otherwise stdout is used (default).
     // Log file will be re-opened on receiving the HUP signal
     ,log_filename: '/tmp/node-windshaft.log'
+    ,log_windshaft: true
     // Templated database username for authorized user
     // Supported labels: 'user_id' (read from redis)
     ,postgres_auth_user: 'test_windshaft_cartodb_user_<%= user_id %>'

lib/api/api-router.js

@@ -83,10 +83,11 @@ module.exports = class ApiRouter {
         const metadataBackend = cartodbRedis({ pool: redisPool });
         const pgConnection = new PgConnection(metadataBackend);
 
+        const windshaftLogger = environmentOptions.log_windshaft ? global.log4js.getLogger('[windshaft]') : null
         const mapStore = new windshaft.storage.MapStore({
             pool: redisPool,
             expire_time: serverOptions.grainstore.default_layergroup_ttl,
-            logger: global.log4js.getLogger('[windshaft]')
+            logger: windshaftLogger
         });
 
         const rendererFactory = createRendererFactory({ redisPool, serverOptions, environmentOptions });