Add documentation for cluster service infrastructure starters

[GaneshPatil7517]

Fixes apache/camel-website#978

Summary

This PR adds documentation support for cluster service infrastructure starters that were causing build warnings because they don't have corresponding Camel component documentation.

Problem

The cluster service starters (consul, file, infinispan, jgroups-raft, kubernetes, zookeeper) are infrastructure starters that don't directly use a Camel component. The existing documentation mechanism in list.adoc counts JSON files and compares them against pages with :camel-spring-boot-name: attributes, causing a mismatch and build warnings.

Solution

1. Modified list.adoc: Added exclude='*-cluster-service.json' to the indexcount macro to exclude cluster service JSON files from the validation count
2. Created dedicated documentation pages for each cluster service:
   • consul-cluster-service.adoc
   • file-cluster-service.adoc
   • infinispan-cluster-service.adoc
   • jgroups-raft-cluster-service.adoc
   • kubernetes-cluster-service.adoc
   • zookeeper-cluster-service.adoc
3. Added Cluster Services section in list.adoc with a table linking to the new pages
4. Updated nav.adoc with Cluster Services navigation entries

Changes

• docs/spring-boot/modules/ROOT/pages/list.adoc - Added exclusion pattern and Cluster Services section
• docs/spring-boot/modules/ROOT/nav.adoc - Added Cluster Services navigation
• docs/spring-boot/modules/ROOT/pages/consul-cluster-service.adoc - New
• docs/spring-boot/modules/ROOT/pages/file-cluster-service.adoc - New
• docs/spring-boot/modules/ROOT/pages/infinispan-cluster-service.adoc - New
• docs/spring-boot/modules/ROOT/pages/jgroups-raft-cluster-service.adoc - New
• docs/spring-boot/modules/ROOT/pages/kubernetes-cluster-service.adoc - New
• docs/spring-boot/modules/ROOT/pages/zookeeper-cluster-service.adoc - New

[jamesnetherton]

file-cluster-service docs are not in sync with the available configuration options:

https://github.com/apache/camel-spring-boot/blob/main/components-starter/camel-file-cluster-service-starter/src/main/java/org/apache/camel/component/file/springboot/cluster/FileLockClusterServiceConfiguration.java

[Croway]

@GaneshPatil7517 given @jamesnetherton comment, I think you need to build https://github.com/apache/camel locally, and rebuild camel-spring-boot, this way the configuration options will be synced. Once pushed the synced configurations, the PR can be merged.

EDIT: the configuration options are not generated, then you need to add those https://github.com/apache/camel-spring-boot/blob/main/components-starter/camel-file-cluster-service-starter/src/main/java/org/apache/camel/component/file/springboot/cluster/FileLockClusterServiceConfiguration.java#L58-L81 to the file cluster service documentation. Thanks

[GaneshPatil7517]

@GaneshPatil7517 given @jamesnetherton comment, I think you need to build https://github.com/apache/camel locally, and rebuild camel-spring-boot, this way the configuration options will be synced. Once pushed the synced configurations, the PR can be merged.

EDIT: the configuration options are not generated, then you need to add those https://github.com/apache/camel-spring-boot/blob/main/components-starter/camel-file-cluster-service-starter/src/main/java/org/apache/camel/component/file/springboot/cluster/FileLockClusterServiceConfiguration.java#L58-L81 to the file cluster service documentation. Thanks

ok ill give you good update soon...

[GaneshPatil7517]

[GaneshPatil7517]

thank you so much @Croway for boosting my confidence feel free assign more issues....