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Chapter 2. Configure resource requests and limits for GitOps plugin components

You can configure CPU and memory resource requests and limits for the GitOps console plugin and its backend cluster components. Resource allocation is controlled through the GitOpsService custom resource (CR) and can be modified during creation or update. The GitOpsService controller reconciles both the backend and plugin resources. You can define separate or identical resource configurations for each component, depending on your requirements. This feature is beneficial for scenarios requiring specific resource requests and limits for components, which can effectively address memory and performance issues.

2.1. Enabling the GitOpsService custom resource
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To enable resource configuration for the GitOps plugin components, specify the .spec.consolePlugin.backend.resources field for the backend component and the .spec.consolePlugin.gitopsPlugin.resources field for the GitOps console plugin. The resources section defines the requests (minimum resources) and limits (maximum resources) for each component.

Prerequisites

  • You have logged in to the OpenShift Container Platform cluster as an administrator.
  • You have installed the Red Hat OpenShift GitOps Operator on your OpenShift Container Platform cluster.

Procedure

  1. Get the GitOpsService CR by running the following command. 

    $ oc get gitopsService -A
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  2. Edit the GitOpsService CR by running the following command. 

    $ oc edit gitopsservice cluster -n openshift-gitops
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  3. In the .spec.consolePlugin section, add the .backend.resources and .gitopsPlugin.resources fields. These sections define requests and limits for CPU and memory.

    Example configuration

    apiVersion: pipelines.openshift.io/v1alpha1
kind: GitopsService
metadata:
  name: cluster
spec:
  consolePlugin:
    backend:
      resources:
        limits:
          cpu: 100m
          memory: 1Gi
        requests:
          cpu: 100m
          memory: 1Gi
    gitopsPlugin:
      resources:
        limits:
          cpu: 200m
          memory: 2Gi
        requests:
          cpu: 100m
          memory: 1Gi
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After you update the GitOpsService CR, the GitOpsService controller applies the specified resource requests and limits to the backend and the GitOps plugin components.

Verification

  1. Ensure that the requests and limits values in the pod specifications match the configuration you have added to the GitOpsService CR.

2.2. Behavior of resource configuration
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The following information describes how the GitOpsService controller applies resource values defined in the GitOpsService custom resource (CR).

  • Specified values: When you define resource values in the GitOpsService CR, the GitOpsService controller applies those values only to the components you specify. For example, if you configure resource limits only for the backend, those values apply to the backend deployment and not to the plugin.
  • Default values: If you do not define any resource values in the GitOpsService custom resource, the GitOpsService controller applies default values to all components.
Expand
Table 2.1. Default resource values
ComponentRequest CPURequest MemoryLimit CPULimit Memory

Backend

250m

128Mi

500m

256Mi

GitOps plugin

250m

128Mi

500m

256Mi

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