add : couchdb roles config in rules.yml

_data/rules.yml

@@ -1445,6 +1445,120 @@ groups:
                 severity: critical
                 for: 2m
 
+      - name: CouchDB
+        exporters:
+          - name: gesellix/couchdb-prometheus-exporter
+            slug: gesellix-couchdb-prometheus-exporter
+            doc_url: https://github.com/gesellix/couchdb-prometheus-exporter
+            rules:
+              - name: CouchDB node down
+                description: CouchDB node is not responding (node_up metric is 0) for more than 2 minutes
+                query: "couchdb_httpd_node_up == 0 or couchdb_httpd_up == 0"
+                severity: critical
+                for: 2m
+
+              - name: CouchDB atom memory usage critical
+                description: Atom memory usage is above 90% of limit
+                query: "couchdb_erlang_memory_atom_used > 0.9 * couchdb_erlang_memory_atom"
+                severity: critical
+                for: 5m
+
+              - name: CouchDB open databases critical
+                description: Number of open databases exceeds 90% of node capacity
+                query: "couchdb_httpd_open_databases > 0.9 * 1000"
+                severity: critical
+                for: 5m
+
+              - name: CouchDB open OS files critical
+                description: CouchDB is using more than 90% of allowed OS file descriptors, may fail to open new files
+                query: "couchdb_httpd_open_os_files > 0.9 * 65535"
+                severity: critical
+                for: 5m
+
+              - name: CouchDB 5xx error ratio high
+                description: More than 5% of HTTP requests are returning 5xx errors
+                query: "rate(couchdb_httpd_status_codes{code=~\"5..\"}[5m]) / rate(couchdb_httpd_requests[5m]) > 0.05"
+                severity: critical
+                for: 5m
+
+              - name: CouchDB temporary view read rate critical
+                description: Temporary view read rate exceeds 100 reads/sec, high risk of performance degradation
+                query: "rate(couchdb_httpd_temporary_view_reads[5m]) > 100"
+                severity: critical
+                for: 5m
+
+              - name: CouchDB Mango queries scanning too many docs
+                description: Some Mango queries are scanning too many documents, consider adding indexes
+                query: "rate(couchdb_mango_too_many_docs_scanned[5m]) > 50"
+                severity: warning
+                for: 5m
+
+              - name: CouchDB Mango queries failed due to invalid index
+                description: Some Mango queries failed to execute because the index was missing or invalid
+                query: "rate(couchdb_mango_query_invalid_index[5m]) > 5"
+                severity: warning
+                for: 5m
+
+              - name: CouchDB Mango docs examined high
+                description: High number of documents examined per Mango queries, consider indexing
+                query: "rate(couchdb_mango_docs_examined[5m]) > 1000"
+                severity: warning
+                for: 5m
+
+              - name: CouchDB Replicator manager died
+                description: Replication manager process has crashed
+                query: "increase(couchdb_replicator_changes_manager_deaths[5m]) > 0"
+                severity: critical
+                for: 1m
+
+              - name: CouchDB Replicator queue process died
+                description: Replication queue process has crashed
+                query: "increase(couchdb_replicator_changes_queue_deaths[5m]) > 0"
+                severity: critical
+                for: 1m
+
+              - name: CouchDB Replicator reader process died
+                description: Replication reader process has crashed
+                query: "increase(couchdb_replicator_changes_reader_deaths[5m]) > 0"
+                severity: critical
+                for: 1m
+
+              - name: CouchDB Replicator failed to start
+                description: One or more replication tasks failed to start
+                query: "increase(couchdb_replicator_failed_starts[5m]) > 0"
+                severity: critical
+                for: 1m
+
+              - name: CouchDB replication cluster unstable
+                description: The replication cluster is unstable, replication may be interrupted
+                query: "couchdb_replicator_cluster_is_stable == 0"
+                severity: critical
+                for: 2m
+
+              - name: CouchDB replication read failures
+                description: Replication changes feed has failed reads more than 5 times in 5 minutes
+                query: "increase(couchdb_replicator_changes_read_failures[5m]) > 5"
+                severity: warning
+                for: 5m
+
+              - name: CouchDB file descriptors high
+                description: Process is using more than 85% of allowed file descriptors
+                query: "process_open_fds / process_max_fds > 0.85"
+                severity: warning
+                for: 5m
+
+              - name: CouchDB process restarted
+                description: CouchDB process has restarted recently
+                query: "changes(process_start_time_seconds[1h]) > 0"
+                severity: critical
+                for: 1m
+
+              - name: CouchDB critical log entries
+                description: Critical or error log entries detected in the last 5 minutes
+                query: "increase(couchdb_server_couch_log{level=~\"error|critical\"}[5m]) > 0"
+                severity: critical
+                for: 1m
+
       - name: Zookeeper
         exporters:
           - name: cloudflare/kafka_zookeeper_exporter