59 lines
2.2 KiB
Markdown
59 lines
2.2 KiB
Markdown
---
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stage: Monitor
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group: APM
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info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#designated-technical-writers
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---
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# Working with Prometheus
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For more information on working with [Prometheus metrics](prometheus_metrics.md), see
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the documentation.
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## Access the UI of a Prometheus managed application in Kubernetes
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You can connect directly to Prometheus, and view the Prometheus user interface, when
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using a Prometheus managed application in Kubernetes:
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1. Find the name of the Prometheus pod in the user interface of your Kubernetes
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provider, such as GKE, or by running the following `kubectl` command in your
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terminal:
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```shell
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kubectl get pods -n gitlab-managed-apps | grep 'prometheus-prometheus-server'
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```
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The command should return a result like the following example, where
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`prometheus-prometheus-server-55b4bd64c9-dpc6b` is the name of the Prometheus pod:
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```plaintext
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gitlab-managed-apps prometheus-prometheus-server-55b4bd64c9-dpc6b 2/2 Running 0 71d
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```
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1. Run a `kubectl port-forward` command. In the following example, `9090` is the
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Prometheus server's listening port:
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```shell
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kubectl port-forward prometheus-prometheus-server-55b4bd64c9-dpc6b 9090:9090 -n gitlab-managed-apps
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```
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The `port-forward` command forwards all requests sent to your system's `9090` port
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to the `9090` port of the Prometheus pod. If the `9090` port on your system is used
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by another application, you can change the port number before the colon to your
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desired port. For example, to forward port `8080` of your local system, change the
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command to:
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```shell
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kubectl port-forward prometheus-prometheus-server-55b4bd64c9-dpc6b 8080:9090 -n gitlab-managed-apps
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```
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1. Open `localhost:9090` in your browser to display the Prometheus user interface.
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## Script access to Prometheus
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You can script the access to Prometheus, extracting the name of the pod automatically like this:
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```shell
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POD_INFORMATION=$(kubectl get pods -n gitlab-managed-apps | grep 'prometheus-prometheus-server')
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POD_NAME=$(echo $POD_INFORMATION | awk '{print $1;}')
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kubectl port-forward $POD_NAME 9090:9090 -n gitlab-managed-apps
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```
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