Search engine documentation review

docs/searchengine_deployment.md

@@ -0,0 +1,25 @@
+OMERO search engine installation and configuration
+==================================================
+
+The [idr-searchengine.yml](../ansible/idr-searchengine.yml) playbook deploys the OMERO
+search engine stack:
+
+*   It will config and run the [OMERO searchengine](https://github.com/ome/omero_search_engine),
+    Elasticsearch and the [OMERO search engine client](https://github.com/ome/omero_search_engine_client/)
+*   It will configure and create the required folders
+*   It will configure the three apps and run them
+*   Additional configuration can be controlled via the
+    [group variables file](../ansible/groups_vars/searchengine-hosts.yml)
+
+To check that the apps have been installed and run, the user can use `wget` or `curl` to call:
+
+  * for the OMERO search engine, http://127.0.0.1:5577/searchengineapi/api/v1/resources/
+  * for OMERO search engine client, http://127.0.0.1:5567
+  * for Elasticsearch, http://127.0.0.1:9201  
+
+After deploying the apps using the playbook, the
+[run_searchengine_index_service.yml](../ansible/run_searchengine_index_service.yml)
+playbook needs to be executed to run the caching and indexing.
+
+As the indexing process takes a long time, the [check_indexing_service.yml](../ansible/check_indexing_service.yml)
+playbooks allows the user to check if it have finished or not.