Add ingest overview content set (#3159)

Author: karenzone

conf.yaml

@@ -1634,6 +1634,20 @@ contents:
               -
                 repo:   docs
                 path:   shared/attributes.asciidoc
+          - title:      Elastic Ingest Overview
+            prefix:     en/ingest-overview
+            current:    main
+            index:      docs/en/ingest-guide/index.asciidoc
+            branches:   [ {main: master} ]
+            tags:       Ingest Overview
+            subject:    Ingest Overview
+            sources:
+              -
+                repo:   ingest-docs
+                path:   docs/en
+              -
+                repo:   docs
+                path:   shared/attributes.asciidoc
           - title:      Elastic Logging Plugin for Docker
             prefix:     en/beats/loggingplugin
             current:    *stackcurrent

doc_build_aliases.sh

@@ -66,6 +66,9 @@ docbldlsvpr() {
     "$GIT_HOME/docs/build_docs" --doc "$GIT_HOME/logstash-docs/docs/versioned-plugins/index.asciidoc" --chunk 1 "$@"
 }
 
+# Ingest Overview
+alias docbldingest='$GIT_HOME/docs/build_docs --doc $GIT_HOME/ingest-docs/docs/en/ingest-guide/index.asciidoc --chunk 1'
+
 # Installation and Upgrade Guide 7.10 and later
 alias docbldstk='$GIT_HOME/docs/build_docs --doc $GIT_HOME/stack-docs/docs/en/install-upgrade/index.asciidoc --resource=$GIT_HOME/elasticsearch/docs/ --resource=$GIT_HOME/kibana/docs/ --resource=$GIT_HOME/beats/libbeat/docs/ --resource=$GIT_HOME/observability-docs/docs/en/observability --resource=$GIT_HOME/logstash/docs/ --resource=$GIT_HOME/elasticsearch-hadoop/docs/src/reference/asciidoc/ --resource=$GIT_HOME/security-docs/docs/ --chunk 1'