docs: add MongoCluster scraping provider documentation

docs/scraping/providers/mongo-cluster.md

@@ -0,0 +1,84 @@
+---
+tags:
+  - Scraper
+  - Resource Discovery
+  - DocumentDB
+  - MongoDB
+  - Database
+  - Open Source
+---
+
+# Azure DocumentDB MongoCluster
+
+![Availability Badge](https://img.shields.io/badge/Available%20Starting-v2.15-green.svg)![Resource Discovery Support Badge](https://img.shields.io/badge/Support%20for%20Resource%20Discovery-Yes-green.svg)
+
+You can scrape an Azure DocumentDB MongoCluster via the `MongoCluster` resource type.
+
+When using declared resources, the following fields need to be provided:
+
+- `clusterName` - The name of the MongoDB cluster.
+
+All supported metrics are documented in the official [Azure Monitor documentation](https://learn.microsoft.com/en-us/azure/azure-monitor/reference/supported-metrics/microsoft-documentdb-mongoclusters-metrics).
+
+## Example
+
+Here is an example configuration:
+
+```yaml
+name: azure_mongo_cluster_cpu_percent
+description: "CPU utilization percentage for MongoDB cluster"
+resourceType: MongoCluster
+azureMetricConfiguration:
+  metricName: CpuPercent
+  aggregation:
+    type: Average
+resources: # Optional, required when no resource discovery is configured
+  - clusterName: my-mongo-cluster-1
+  - clusterName: my-mongo-cluster-2
+resourceDiscoveryGroups: # Optional, requires Promitor Resource Discovery agent
+  - name: mongo-cluster-landscape
+```
+
+## Additional Examples
+
+### Memory Utilization
+
+```yaml
+name: azure_mongo_cluster_memory_percent
+description: "Memory utilization percentage for MongoDB cluster"
+resourceType: MongoCluster
+azureMetricConfiguration:
+  metricName: MemoryPercent
+  aggregation:
+    type: Average
+resources:
+  - clusterName: my-mongo-cluster
+```
+
+### Request Duration
+
+```yaml
+name: azure_mongo_cluster_request_duration
+description: "Request duration in milliseconds for MongoDB cluster"
+resourceType: MongoCluster
+azureMetricConfiguration:
+  metricName: MongoRequestDurationMs
+  aggregation:
+    type: Average
+resources:
+  - clusterName: my-mongo-cluster
+```
+
+### Storage Utilization
+
+```yaml
+name: azure_mongo_cluster_storage_percent
+description: "Storage utilization percentage for MongoDB cluster"
+resourceType: MongoCluster
+azureMetricConfiguration:
+  metricName: StoragePercent
+  aggregation:
+    type: Average
+resources:
+  - clusterName: my-mongo-cluster
+```

mkdocs.yml

@@ -161,6 +161,7 @@ nav:
     - Azure Database for MariaDB: scraping/providers/maria-db.md
     - Azure Database for PostgreSQL: scraping/providers/postgresql.md
     - Azure Database for MySQL: scraping/providers/mysql.md
+    - Azure DocumentDB MongoCluster: scraping/providers/mongo-cluster.md
     - Azure DNS Zone: scraping/providers/dns-zone.md
     - Azure Data Factory: scraping/providers/data-factory.md
     - Azure Data Share: scraping/providers/data-share.md
@@ -219,6 +220,7 @@ nav:
     - Azure Database for MariaDB: scraping/providers/maria-db.md
     - Azure Database for PostgreSQL: scraping/providers/postgresql.md
     - Azure Database for MySQL: scraping/providers/mysql.md
+    - Azure DocumentDB MongoCluster: scraping/providers/mongo-cluster.md
     - Azure DNS Zone: scraping/providers/dns-zone.md
     - Azure Data Factory: scraping/providers/data-factory.md
     - Azure Data Share: scraping/providers/data-share.md