Minor changes to ops configs. [skip-ci]

ops/docker-compose/elastic/docker-compose.yml

 version: '2.2'
 services:
   elasticsearch:
+    restart: always
     image: docker.elastic.co/elasticsearch/elasticsearch:6.7.2
     container_name: nomad_elastic_cluster_1_node_1
     environment:
@@ -19,6 +20,7 @@ services:
     networks:
       - nomad_elastic_cluster_1
   elasticsearch2:
+    restart: always
     image: docker.elastic.co/elasticsearch/elasticsearch:6.7.2
     container_name: nomad_elastic_cluster_2_node_2
     environment:

ops/docker-compose/elk/pipeline/nomad-logs.conf

@@ -19,9 +19,6 @@ filter {
     }
 }
 output {
-    stdout {
-        codec => rubydebug
-    } 
     elasticsearch {
         hosts => ["elasticsearch:9200"]
     }