docs-v2/content/influxdb3/clustered/install/customize-cluster/config.md

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Customize your cluster configuration	Customize the configuration of your InfluxDB cluster	Customize the configuration of your InfluxDB cluster to best suit your workload.	influxdb3_clustered name parent Customize cluster configuration Customize your cluster	202	/influxdb3/clustered/admin/env-vars/

Use environment variables to customize configuration options for components in your InfluxDB cluster.

{{< tabs-wrapper >}} {{% tabs "medium" %}} AppInstance Helm {{% /tabs %}}

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In your AppInstance resource, configure environment variables for individual components in the spec.package.spec.components.<component>.template.containers.iox.env property. The following InfluxDB Clustered components are configurable:

• ingester
• querier
• router
• compactor
• garbage-collector

In the env property, structure each environment variable as a key-value pair where the key is the environment variable name and the value is the environment variable value (string-formatted)--for example:

apiVersion: kubecfg.dev/v1alpha1
kind: AppInstance
metadata:
  name: influxdb
  namespace: influxdb
spec:
  package:
    # ...
    spec:
      components:
        router:
          template:
            containers:
              iox:
                env:
                  INFLUXDB_IOX_MAX_HTTP_REQUESTS: '4500'
                  INFLUXDB_IOX_MAX_HTTP_REQUEST_SIZE: '52428800'

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In your values.yaml, configure environment variables for individual components in the components.<component>.template.containers.iox.env property. The following InfluxDB Clustered components are configurable:

• ingester
• querier
• router
• compactor
• garbage-collector

In the env property, structure each environment variable as a key-value pair where the key is the environment variable name and the value is the environment variable value (string-formatted)--for example:

components:
  router:
    template:
      containers:
        iox:
          env:
            INFLUXDB_IOX_MAX_HTTP_REQUESTS: '4500'
            INFLUXDB_IOX_MAX_HTTP_REQUEST_SIZE: '52428800'

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For more information, see Manage environment variables in your InfluxDB Cluster.

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Configurable settings

For information about what settings are configurable and their associated environment variables, contact InfluxData Support. {{% /note %}}

Apply the changes to your cluster

Use kubectl or helm (if using the InfluxDB Clustered Helm chart), to apply the changes to your cluster:

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kubectl apply \
  --filename myinfluxdb.yml \
  --namespace influxdb

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helm upgrade \
  influxdata/influxdb3-clustered \
  -f ./values.yml \
  --namespace influxdb

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{{< page-nav prev="content/influxdb3/clustered/install/customize-cluster/scale/" prevText="Customize cluster scale" next="/influxdb3/clustered/install/optimize-cluster/" nextText="Phase 3: Optimize your cluster" >}}