Persist data locally when running docker-amundsen-local (#225)

* Add .local/ to .gitignore

* Mount .local/ dir into elasticsearch and neo4j to persist data

* Remove .gitkeep

* Persist data when using docker-compose-local

* Documentation update

.gitignore

 example/backup/
 example/docker/neo4j/plugins/
 example/docker/es_data*
+.local/
 
 .idea/

docker-amundsen-local.yml

@@ -14,6 +14,7 @@ services:
           - 7687:7687
       volumes:
           - ./example/docker/neo4j/conf:/conf
+          - ./.local/neo4j/data:/neo4j/data
       networks:
         - amundsennet
   elasticsearch:
@@ -23,6 +24,8 @@ services:
           - 9200:9200
       networks:
         - amundsennet
+      volumes:
+        - ./.local/elasticsearch/data:/usr/share/elasticsearch/data
   amundsensearch:
       build:
         context: ./amundsensearchlibrary

docs/developer_guide.md

@@ -48,5 +48,18 @@ $ git submodule update --remote
     $ docker logs amundsenmetadata --tail 10 -f
     ```
 
+### Local data
+
+Local data is persisted under .local/ (at the root of the project), clean up the following directories to reset the databases:
+
+```bash
+#  reset elasticsearch
+rm -rf .local/elasticsearch
+
+#  reset neo4j
+rm -rf .local/neo4j
+```
+
+
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