74 lines
2.0 KiB
Markdown
74 lines
2.0 KiB
Markdown
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# Istiod Helm Chart
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This chart installs an Istiod deployment.
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## Setup Repo Info
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```console
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helm repo add istio https://istio-release.storage.googleapis.com/charts
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helm repo update
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```
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_See [helm repo](https://helm.sh/docs/helm/helm_repo/) for command documentation._
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## Installing the Chart
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Before installing, ensure CRDs are installed in the cluster (from the `istio/base` chart).
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To install the chart with the release name `istiod`:
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```console
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kubectl create namespace istio-system
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helm install istiod istio/istiod --namespace istio-system
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```
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## Uninstalling the Chart
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To uninstall/delete the `istiod` deployment:
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```console
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helm delete istiod --namespace istio-system
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```
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## Configuration
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To view support configuration options and documentation, run:
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```console
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helm show values istio/istiod
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```
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### Profiles
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Istio Helm charts have a concept of a `profile`, which is a bundled collection of value presets.
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These can be set with `--set profile=<profile>`.
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For example, the `demo` profile offers a preset configuration to try out Istio in a test environment, with additional features enabled and lowered resource requirements.
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For consistency, the same profiles are used across each chart, even if they do not impact a given chart.
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Explicitly set values have highest priority, then profile settings, then chart defaults.
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As an implementation detail of profiles, the default values for the chart are all nested under `defaults`.
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When configuring the chart, you should not include this.
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That is, `--set some.field=true` should be passed, not `--set defaults.some.field=true`.
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### Examples
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#### Configuring mesh configuration settings
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Any [Mesh Config](https://istio.io/latest/docs/reference/config/istio.mesh.v1alpha1/) options can be configured like below:
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```yaml
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meshConfig:
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accessLogFile: /dev/stdout
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```
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#### Revisions
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Control plane revisions allow deploying multiple versions of the control plane in the same cluster.
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This allows safe [canary upgrades](https://istio.io/latest/docs/setup/upgrade/canary/)
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```yaml
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revision: my-revision-name
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```
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