Overview About Middleware and Custom Plug-in Connection to AOM

AOM provides a unified entry for observability analysis of Huawei Cloud services. Through the access center, you can quickly install Prometheus official middleware Exporters and custom plug-ins. By creating collection tasks and executing scripts, AOM can monitor middleware and custom plug-in metrics. It works with open-source Grafana for comprehensive monitoring. It helps you quickly detect and locate issues, minimizing the impact of faults on services.

To quickly connect middleware and custom plug-ins to AOM, perform the following steps:

Install UniAgent on your VM for installing Exporters and creating collection tasks. For details, see Installing UniAgents.
Create a Prometheus instance for ECS and associate it with a collection task to mark and categorize collected data. For details, see Managing Prometheus Instances.
Connect middleware and custom plug-ins to AOM. For details, see Connecting Middleware to AOM and Connecting Custom Plug-ins to AOM.
After middleware and custom plug-ins are connected to AOM, metrics can then be reported to AOM. You can go to the Metric Browsing page to query metrics.

Connecting Middleware and Custom Plug-insto AOM

Log in to the AOM 2.0 console.
In the navigation pane on the left, choose Access Center > Access Center. (To switch from the new access center to the old one, click Back to Old Version in the upper right corner.)

Click a target card under Prometheus Middleware or Custom Prometheus Plug-in Access on the right, and perform the operations listed in following table if needed.

Middleware: You can create collection tasks and install the middleware Exporters provided by AOM to monitor middleware metrics. For details about the middleware metrics that can be monitored by AOM, see open-source Exporters.

**Table 1** Connecting middleware to AOM
Card	Related Operation
MySQL	Click the MySQL card. On the displayed page, connect MySQL Exporter. For details, see Ingesting MySQL Metrics to AOM.
Redis	Click the Redis card. On the displayed page, connect Redis Exporter. For details, see Ingesting Redis Metrics to AOM.
Kafka	Click the Kafka card. On the displayed page, connect Kafka Exporter. For details, see Ingesting Kafka Metrics to AOM.
Nginx	Click the Nginx card. On the displayed page, connect Nginx Exporter. For details, see Ingesting Nginx Metrics to AOM.
MongoDB	Click the MongoDB card. On the displayed page, connect MongoDB Exporter. For details, see Ingesting MongoDB Metrics to AOM.
Consul	Click the Consul card. On the displayed page, connect Consul Exporter. For details, see Ingesting Consul Metrics to AOM.
HAProxy	Click the HAProxy card. On the displayed page, connect HAProxy Exporter. For details, see Ingesting HAProxy Metrics to AOM.
PostgreSQL	Click the PostgreSQL card. On the displayed page, connect PostgreSQL Exporter. For details, see Ingesting PostgreSQL Metrics to AOM.
Elasticsearch	Click the Elasticsearch card. On the displayed page, connect Elasticsearch Exporter. For details, see Ingesting Elasticsearch Metrics to AOM.
RabbitMQ	Click the RabbitMQ card. On the displayed page, connect RabbitMQ Exporter. For details, see Ingesting RabbitMQ Metrics to AOM.
Other components	Click the Other components card. On the displayed page, connect Custom Exporter. For details, see Ingesting Other Middleware Metrics to AOM.

Custom plug-in: You can create a custom plug-in based on your requirements and use it to create collection tasks for metric monitoring. For details, see Connecting Custom Plug-ins to AOM.