docs(configuration): added info about turning off elasticsearch

docs/.howto

@@ -1,6 +1,6 b''
 ## BUILD
 # cd docs
-# docker build --tag sphinx-doc-build .
+# docker build --tag rhodecode/sphinx-doc-build .
 
 # Build Docs
-# docker run --rm -v $PWD:/project --workdir=/project/docs sphinx-doc-build make clean html
  No newline at end of file
+# docker run --rm -v $PWD:/project --workdir=/project/docs rhodecode/sphinx-doc-build make clean html
  No newline at end of file

docs/Dockerfile

@@ -1,5 +1,24 b''
-FROM sphinxdoc/sphinx
+FROM python:3.12.0-bullseye
 
 WORKDIR /project
+
+RUN apt-get update \
+ && apt-get install --no-install-recommends --yes \
+      curl \
+      zip \
+      graphviz \
+      imagemagick \
+      make \
+ && apt-get autoremove \
+ && apt-get clean \
+ && rm -rf /var/lib/apt/lists/*
+
+RUN \
+    python3 -m pip install --no-cache-dir --upgrade pip && \
+    python3 -m pip install --no-cache-dir Sphinx Pillow
+
 ADD requirements_docs.txt /project
-RUN pip3 install -r requirements_docs.txt
+RUN \
+    python3 -m pip install -r requirements_docs.txt
+
+CMD ["sphinx-build", "-M", "html", ".", "_build"]

docs/requirements_docs.txt

@@ -5,3 +5,7 b' sphinx-press-theme==0.8.0'
 sphinx-rtd-theme==1.3.0
 
 pygments==2.16.1
+
+docutils<0.19
+markupsafe==2.1.3
+jinja2==3.1.2

docs/source/configuration/configuration-of-components.rst

@@ -59,3 +59,53 b' By editing :file:`.custom/docker-compose-services.override.yaml`'
         # to disable set replicas to 0
         deploy:
           replicas: 0
+
+
+Disable ElasticSearch
++++++++++++++++++++++
+
+ElasticSearch is used by default as a search engine.
+Elasticsearch is powerful search engine, however it generally requires a lot of resource to be functional.
+
+In case the plan is to use CE edition, or the machine is restricted with resource ElasticSearch can be disabled.
+
+By editing :file:`.custom/docker-compose-services.override.yaml`
+
+
+.. code-block:: yaml
+
+
+    version: '3.9'
+    ## This is a final override file for services stack
+    ## Add your own customizations
+
+    ## set elasticsearch replicas to 0 to stop running it together with services stack.
+    services:
+
+      elasticsearch:
+        # to disable set replicas to 0
+        deploy:
+          replicas: 0
+
+
+Elasticsearch is used by default as a search engine inside the rhodecode.ini configuration.
+So this needs to be also adjusted.
+
+
+By editing :file:`config/_shared/rhodecode.ini`
+
+Turn of ElasticSearch and enable Whoosh
+
+.. code-block:: ini
+
+    ; ElasticSearch (EE edition only). Requires Elastic Search cluster
+    ; to be installed, and running. Recommended for large amount of repositories
+    #search.module = rc_elasticsearch
+    #search.location = http://elasticsearch:9200
+    ; specify Elastic Search version, 6 for latest or 2 for legacy
+    #search.es_version = 6
+
+    ; WHOOSH Backend, doesn't require additional services to run
+    ; it works good with few dozen repos
+    search.module = rhodecode.lib.index.whoosh
+    search.location = /var/opt/rhodecode_data/index