Missing (ECS) schema for ES 8.0

[kares]

Logstash snapshot 8.0.0-SNAPSHOT with ES snapshot 8.0.0-SNAPSHOT fails to start.

Since elastic/logstash#12830 LS enabled ecs_compatibility => v1 default for 8.0 (SNAPSHOT).
When running against (unreleased) ES 8.0 loading the plugin fails due a missing schema file for version 8, leading to a:

[logstash.outputs.elasticsearch][main] Failed to install template {:message=>"Failed to load default template for Elasticsearch v8 with ECS v1; caused by: #<ArgumentError: Template file '/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/logstash-output-elasticsearch-11.0.2-java/lib/logstash/outputs/elasticsearch/templates/ecs-v1/elasticsearch-8x.json' could not be found>", :exception=>RuntimeError, :backtrace=>

[yaauie]

Assigning to myself.

ECS v1 doesn't include a generated template for Elasticsearch 8, so our vendor scripts will need to be modified. I've got a WIP that symlinks additional variants (EDIT: template shape changed, solution will need more than just symlink), and am making another pass at the specs to make sure that they really make sense in terms of the default value changing recently in Logstash core.

[kares]

related issue (a request to update the templates for v1): #1027

[roaksoax]

This issue has now been fixed as the templates are now available for the expected releases.