Fix local config: Use DayTime (#598)

* Fix local config: Use DayTime

Psst, the date is the first commit date for loki ;)

Signed-off-by: Goutham Veeramachaneni <gouthamve@gmail.com>

* Fix the config in ksonnet and helm too

Signed-off-by: Goutham Veeramachaneni <gouthamve@gmail.com>

cmd/loki/loki-local-config.yaml

@@ -13,7 +13,7 @@ ingester:
 
 schema_config:
   configs:
-  - from: 0
+  - from: 2018-04-15
     store: boltdb
     object_store: filesystem
     schema: v9

production/helm/loki/values.yaml

@@ -42,7 +42,7 @@ config:
     enforce_metric_name: false
   schema_config:
     configs:
-    - from: 0
+    - from: 2018-04-15
       store: boltdb
       object_store: filesystem
       schema: v9

production/ksonnet/loki/config.libsonnet

@@ -111,7 +111,7 @@
 
       schema_config: {
         configs: [{
-          from: '0',
+          from: '2018-04-15',
           store: 'bigtable',
           object_store: 'gcs',
           schema: 'v9',