Fix log directory of Elasticsearch

Logs should be stored in /var/log/kolla/elasticsearch.

Change-Id: If3ba4ec6ce2dbe9859ca604f0ee2df7fc4d15bd9
Closes-bug: #1634046

ansible/roles/elasticsearch/templates/elasticsearch.json.j2

@@ -13,6 +13,11 @@
             "path": "/var/lib/elasticsearch",
             "owner": "elasticsearch:elasticsearch",
             "recurse": true
+        },
+        {
+            "path": "/var/log/kolla/elasticsearch",
+            "owner": "elasticsearch:elasticsearch",
+            "recurse": true
         }
     ]
 }

ansible/roles/elasticsearch/templates/elasticsearch.yml.j2

@@ -15,5 +15,5 @@ gateway.recover_after_time: "5m"
 gateway.recover_after_nodes: {{ recover_after_nodes }}
 path.conf: "/etc/elasticsearch"
 path.data: "/var/lib/elasticsearch/data"
-path.logs: "/var/log/elasticsearch"
+path.logs: "/var/log/kolla/elasticsearch"
 path.scripts: "/etc/elasticsearch/scripts"

docker/elasticsearch/extend_start.sh

 #!/bin/bash
 
+if [[ ! -d "/var/log/kolla/elasticsearch" ]]; then
+    mkdir -p /var/log/kolla/elasticsearch
+fi
+if [[ $(stat -c %a /var/log/kolla/elasticsearch) != "755" ]]; then
+    chmod 755 /var/log/kolla/elasticsearch
+fi
+
 # Only update permissions if permissions need to be updated
 if [[ $(stat -c %U:%G /var/lib/elasticsearch/data) != "elasticsearch:elasticsearch" ]]; then
     sudo chown elasticsearch: /var/lib/elasticsearch/data