Commit 72bd0aa0 authored by Achilleas Pipinellis's avatar Achilleas Pipinellis 🏃🏽

Fix broken links limit lines to 80 chars

[ci skip]
parent 7726cb39
Pipeline #7064347 skipped
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>**Notes:**
- Prometheus and the various exporters listed in this page are bundled in the
Omnibus GitLab package. Check each exporter's documentation for the timeline they got added. For installations from source you will have to install them yourself. Over subsequent releases additional GitLab metrics will be captured.
Omnibus GitLab package. Check each exporter's documentation for the timeline
they got added. For installations from source you will have to install them
yourself. Over subsequent releases additional GitLab metrics will be captured.
- Prometheus services are on by default with GitLab 9.0.
- Prometheus and its exporters do not authenticate users, and will be available to anyone who can access them.
- Prometheus and its exporters do not authenticate users, and will be available
to anyone who can access them.
[Prometheus] is a powerful time-series monitoring service, providing a flexible
platform for monitoring GitLab and other software products.
......@@ -22,9 +25,12 @@ dashboard tool like [Grafana].
## Configuring Prometheus
>**Note:**
- For installations from source you'll have to install and configure it yourself.
For installations from source you'll have to install and configure it yourself.
Prometheus and it's exporters are on by default, starting with GitLab 9.0. Prometheus will run as the `gitlab-prometheus` user and listen on `http://localhost:9090`. Each exporter will be automatically be set up as a monitoring target for Prometheus, unless individually disabled.
Prometheus and it's exporters are on by default, starting with GitLab 9.0.
Prometheus will run as the `gitlab-prometheus` user and listen on
`http://localhost:9090`. Each exporter will be automatically be set up as a
monitoring target for Prometheus, unless individually disabled.
To disable Prometheus and all of its exporters, as well as any added in the future:
......@@ -88,12 +94,15 @@ Sample Prometheus queries:
## Configuring Prometheus to monitor Kubernetes
>**Note:**
This feature was introduced in GitLab 9.0.
> Introduced in GitLab 9.0.
If your GitLab server is running within Kubernetes, an option is now available to monitor the health of each node in the cluster. This is particularly helpful if your CI/CD environments run in the same cluster, and you would like enable [Prometheus integration][] to monitor them.
If your GitLab server is running within Kubernetes, an option is now available
to monitor the health of each node in the cluster. This is particularly helpful
if your CI/CD environments run in the same cluster, and you would like enable
[Prometheus integration][] to monitor them.
When enabled, the bundled Prometheus server monitors Kubernetes and automatically [collects metrics](prometheus-cadvisor-metrics) from each Node in the cluster.
When enabled, the bundled Prometheus server monitors Kubernetes and automatically
[collects metrics][prometheus-cadvisor-metrics] from each Node in the cluster.
To enable the Kubernetes monitoring:
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......@@ -150,9 +150,13 @@ On a very active server (10,000 active users) the Sidekiq process can use 1GB+ o
## Prometheus and its exporters
As of GitLab 9.0, [Prometheus](https://prometheus.io) and its related exporters are enabled by default, to enable easy and in depth monitoring of GitLab. Approximately 200MB of memory will be consumed by these processes, with default settings.
As of Omnibus GitLab 9.0, [Prometheus](https://prometheus.io) and its related
exporters are enabled by default, to enable easy and in depth monitoring of
GitLab. Approximately 200MB of memory will be consumed by these processes, with
default settings.
If you would like to disable Prometheus and it's exporters, simply set `prometheus['disable_all']=true` in `gitlab.rb`. More information is available in [the documentation](https://docs.gitlab.com/ce/doc/administration/monitoring/prometheus/index.html).
If you would like to disable Prometheus and it's exporters or read more information
about it, check the [Prometheus documentation](../administration/monitoring/prometheus/index.md).
## Supported web browsers
......
# Prometheus integration
>**Notes:**
- [Introduced][ce-8935] in GitLab 9.0.
> [Introduced][ce-8935] in GitLab 9.0.
GitLab offers powerful integration with [Prometheus] for monitoring your apps.
Metrics are retrieved from the configured Prometheus server, and then displayed
......@@ -31,23 +30,26 @@ GitLab.
In order for Prometheus to collect Kubernetes metrics, you first must have a
Prometheus server up and running. You have two options here:
1. If you installed Omnibus GitLab inside of Kubernetes, you can simply use the
[bundled version of Prometheus](#configuring-prometheus-to-collect-kubernetes-metrics).
1. If you are using GitLab.com or installed GitLab outside of Kubernetes, you
will likely need to run a [Prometheus server within the Kubernetes cluster](#configuring-your-own-prometheus-server-within-kubernetes).
Once installed, the easiest way to monitor Kubernetes is to simply use
Prometheus' support for [Kubernetes Service Discovery][prometheus-k8s-sd].
- If you installed Omnibus GitLab inside of Kubernetes, you can simply use the
[bundled version of Prometheus][promgldocs]. In that case, follow the info in the
[Omnibus GitLab section](#configuring-omnibus-gitlab-prometheus-to-monitor-kubernetes)
below.
- If you are using GitLab.com or installed GitLab outside of Kubernetes, you
will likely need to run a Prometheus server within the Kubernetes cluster.
Once installed, the easiest way to monitor Kubernetes is to simply use
Prometheus' support for [Kubernetes Service Discovery][prometheus-k8s-sd].
In that case, follow the instructions on
[configuring your own Prometheus server within Kubernetes](#configuring-your-own-prometheus-server-within-kubernetes).
### Configuring Omnibus GitLab Prometheus to monitor Kubernetes
With Omnibus GitLab running inside of Kubernetes, you can leverage the bundled
version of Prometheus to collect the required metrics.
Read how to configure the bundled Prometheus server in the
[Administration guide][gitlab-prometheus-k8s-monitor].
Now that Prometheus is configured, proceed on
[configuring the Prometheus project service in GitLab](##configuration-in-gitlab).
1. Read how to configure the bundled Prometheus server in the
[Administration guide][gitlab-prometheus-k8s-monitor].
1. Now that Prometheus is configured, proceed on
[configuring the Prometheus project service in GitLab](#configuration-in-gitlab).
### Configuring your own Prometheus server within Kubernetes
......@@ -156,18 +158,30 @@ The queries utilized by GitLab are shown in the following table.
## Monitoring CI/CD Environments
Once configured, GitLab will attempt to retrieve performance metrics for any environment which has had a successful deployment. If monitoring data was successfully retrieved, a metrics button will appear on the environment's detail page.
Once configured, GitLab will attempt to retrieve performance metrics for any
environment which has had a successful deployment. If monitoring data was
successfully retrieved, a metrics button will appear on the environment's
detail page.
![Environment Detail with Metrics](img/prometheus_environment_detail_with_metrics.png)
Clicking on the metrics button will display a new page, showing up to the last 8 hours of performance data. It may take a minute or two for data to appear after initial deployment.
Clicking on the metrics button will display a new page, showing up to the last
8 hours of performance data. It may take a minute or two for data to appear
after initial deployment.
## Troubleshooting
If the metrics button is not appearing, then one of a few issues may be occurring:
- GitLab is not able to reach the Prometheus server. A test request can be sent to the Prometheus server from the [Prometheus Service](#configuration-in-gitlab) configuration screen.
If the metrics button is not appearing, then one of a few issues may be
occurring:
- GitLab is not able to reach the Prometheus server. A test request can be sent
to the Prometheus server from the [Prometheus Service](#configuration-in-gitlab)
configuration screen.
- No successful deployments have occurred to this environment.
- Prometheus does not have performance data for this environment, or the metrics are not labeled correctly. To test this, connect to the Prometheus server and run a [query](#gitlab-prometheus-queries), replacing $CI_ENVIRONMENT_SLUG with the name of your environment.
- Prometheus does not have performance data for this environment, or the metrics
are not labeled correctly. To test this, connect to the Prometheus server and
[run a query](#gitlab-prometheus-queries), replacing `$CI_ENVIRONMENT_SLUG`
with the name of your environment.
[autodeploy]: ../../../ci/autodeploy/index.md
[kubernetes]: https://kubernetes.io
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