Add Couchbase Elasticsearch Connector by HTTP template for Zabbix 6.0

[hozgryldz]

Summary

Adds a Zabbix 6.0 template for monitoring Couchbase Elasticsearch Connector through its HTTP Dropwizard metrics endpoint.

Features

• Multiple connector instances per Zabbix host
• One HTTP metrics request per connector per polling interval
• HTTP-only monitoring with no Zabbix agent, container runtime, or external script dependency
• Connector backlog, Elasticsearch request wait, throughput, write queue, and latency monitoring
• Reset-safe retry and failure counters
• Aggregate Couchbase DCP connection health
• Trigger-focused monitoring
• Database-conscious history and trend retention
• Raw metrics JSON is not stored

Tested with

• Zabbix 6.0.48
• Couchbase Elasticsearch Connector 4.4.8

Validation

• Fresh Zabbix 6.0.48 import and native re-export
• Runtime preprocessing and trigger lifecycle validation
• Counter reset and throughput reset validation
• Instance discovery and macro-context validation
• Graph and dashboard rendering validation
• Live read-only validation against two Couchbase Elasticsearch Connector 4.4.8 instances
• Verified one HTTP metrics request per connector per polling interval

Notes

• Workload-dependent trigger thresholds default to 0 and are disabled until configured.
• Zabbix Proxy execution has not been explicitly tested.
• DCP connection monitoring uses a CBES metric that Couchbase does not document as part of its stable monitoring contract.
• Growing-backlog evaluation requires a warm-up period while the shifted history window is populated.