Add nginx integration

Signed-off-by: Simeon Widdis <sawiddis@amazon.com>

server/adaptors/integrations/__data__/repository/nginx/assets/create_mv-1.0.0.sql

@@ -0,0 +1,10 @@
+CREATE MATERIALIZED VIEW {table_name}_mview AS
+SELECT
+    to_timestamp(trim(BOTH '[]' FROM concat(time_local_1, ' ', time_local_2)), 'dd/MMM/yyyy:HH:mm:ss Z') AS `@timestamp`,
+    split_part (request, ' ', 1) as `http.request.method`,
+    split_part (request, ' ', 2) as `http.url`,
+    split_part (request, ' ', 3) as `http.flavor`,
+    status AS `http.response.status_code`,
+    body_bytes_sent AS `http.response.bytes`,
+    'nginx.access' AS `event.domain`
+FROM {table_name}

server/adaptors/integrations/__data__/repository/nginx/assets/create_table-1.0.0.sql

@@ -0,0 +1,18 @@
+CREATE EXTERNAL TABLE {table_name} (
+  remote_addr STRING,
+  empty_col STRING,
+  remote_user STRING,
+  time_local_1 STRING,
+  time_local_2 STRING,
+  request STRING,
+  status INT,
+  body_bytes_sent INT,
+  http_referer STRING,
+  http_user_agent STRING,
+  gzip_ratio STRING
+) USING csv
+LOCATION '{s3_bucket_location}'
+OPTIONS (
+  sep=' ',
+  nullValue='-'
+)

server/adaptors/integrations/__data__/repository/nginx/assets/refresh_mv-1.0.0.sql

@@ -0,0 +1 @@
+REFRESH MATERIALIZED VIEW {table_name}_mview

server/adaptors/integrations/__data__/repository/nginx/nginx-1.0.0.json

@@ -5,7 +5,7 @@
   "description": "Nginx HTTP server collector",
   "license": "Apache-2.0",
   "type": "logs",
-  "labels": ["Observability", "Logs"],
+  "labels": ["Observability", "Logs", "Flint S3"],
   "author": "OpenSearch",
   "sourceUrl": "https://github.com/opensearch-project/dashboards-observability/tree/main/server/adaptors/integrations/__data__/repository/nginx/info",
   "statics": {
@@ -38,7 +38,24 @@
     "savedObjects": {
       "name": "nginx",
       "version": "1.0.0"
-    }
+    },
+    "queries": [
+      {
+        "name": "create_table",
+        "version": "1.0.0",
+        "language": "sql"
+      },
+      {
+        "name": "create_mv",
+        "version": "1.0.0",
+        "language": "sql"
+      },
+      {
+        "name": "refresh_mv",
+        "version": "1.0.0",
+        "language": "sql"
+      }
+    ]
   },
   "sampleData": {
     "path": "sample.json"