How to deploy a monitoring system in GitLab

GitLab is an open source software based on Git. It provides one-stop solutions for code hosting, code review, CI/CD, etc., and has been widely welcomed. However, when applying GitLab on a large scale, how to monitor the performance and operating status of GitLab to avoid failures is an issue that needs to be considered. This article will introduce how to deploy a monitoring system in GitLab to monitor GitLab.

1. Monitoring system

In order to monitor GitLab, you need to choose a suitable monitoring system. Among many monitoring systems, Prometheus is a powerful and high-performance open source monitoring platform that supports multiple data sources, flexible query languages, visualization and other functions. It is widely used in cloud native and microservice architectures.

2. Installing Prometheus

The official website provides a variety of installation methods. This article uses Docker to install it.

1) Install Docker

First you need to install Docker, which can be installed through the installation script on the official website.

2) Install Prometheus

Use Docker to run the Prometheus image:

docker run -d --name=prometheus -p 9090:9090 prom/prometheus

The above command will start a Prometheus container locally and map the 9090 port of the container to the local 9090 port.

3. Configuring Prometheus

Prometheus is a flexible monitoring system that requires configuring data sources and tasks. When monitoring GitLab, you need to configure data sources and related collection tasks.

1) Configure the data source

Add the GitLab data source in the Prometheus configuration file prometheus.yml:

scrape_configs:
  - job_name: 'gitlab'
    metrics_path: '/metrics'
    static_configs:
    - targets: ['<GitLab-IP>:9090']

Among them, <GitLab-IP> is the IP address of the GitLab server.

2) Configure collection tasks

Prometheus can collect GitLab monitoring data through API. In the prometheus.yml file, add the following configuration:

- job_name: 'gitlab-api'
  scrape_interval: 5s
  metrics_path: '/probe'
  params:
    module: [http_2xx]
  static_configs:
    - targets:
        - 'http://<GitLab-IP>/health_check'
    relabel_configs:
      - source_labels: [__address__]
        target_label: __param_target
      - source_labels: [__param_target]
        target_label: instance
      - target_label: __address__
        replacement: '<GitLab-IP>:8080'

Where, <GitLab-IP> is the IP address of the GitLab server.

3) Restart Prometheus

In order for the configuration to take effect, you need to restart Prometheus.

docker restart prometheus

4. GitLab configuration

On GitLab Server, you need to open the Prometheus Exporter plug-in so that Prometheus can collect GitLab monitoring data.

1) Install the Prometheus Exporter plug-in

In the GitLab management page, select Plugins, search for prometheus, and enable the GitLab Prometheus Exporter plug-in.

2) Configure the Prometheus Exporter plug-in

In the configuration page of the GitLab Prometheus Exporter plug-in, open the Enabled option and fill in the Prometheus server IP address and port number.

5. Result

After the above steps, you can monitor GitLab. In the Prometheus Web UI, GitLab monitoring data can be queried and displayed visually.

In addition, you can also use AlertManager to monitor and alert GitLab anomalies.

Summary

This article introduces how to deploy a monitoring system in GitLab to monitor GitLab. Among them, choosing a suitable monitoring system is the key, and the entire process needs to be configured carefully to ensure that the monitoring system can operate stably. In practical applications, you can combine the Prometheus documentation to adjust the relevant parameters of the monitoring system to improve the operating efficiency and stability of GitLab.

The above is the detailed content of How to deploy a monitoring system in GitLab. For more information, please follow other related articles on the PHP Chinese website!