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67 lines
2.5 KiB
Plaintext
67 lines
2.5 KiB
Plaintext
// Module included in the following assemblies:
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//
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// microshift_configuring/microshift-feature-gates.adoc
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:_mod-docs-content-type: PROCEDURE
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[id="microshift-feature-gates-using_{context}"]
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= Using feature gates for {microshift-short}
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[role="_abstract"]
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To use feature gates in your development environment, you must specify them in the `config.yaml` file or create a configuration snippet file. You must also configure the feature set you want to work with.
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[IMPORTANT]
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====
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* A `config.yaml` configuration file takes precedence over built-in settings. The `config.yaml` file is read every time the {microshift-short} service starts.
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* Configuration snippet YAMLs take precedence over both built-in settings and the `config.yaml` configuration file.
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* After you enable feature gates, you cannot disable them.
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====
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.Prerequisites
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* You installed {microshift-short}.
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* You installed the {oc-first}.
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* You have `sudo` privileges on the {microshift-short} host.
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.Procedure
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. Apply features gates in one of the two following ways:
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.. Update the {microshift-short} `config.yaml` configuration file by making a copy of the provided `config.yaml.default` file in the `/etc/microshift/` directory. Name it `config.yaml` and keep it in the source directory.
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.. Use a configuration snippet to apply the ingress control settings you want. To do this, create a configuration snippet YAML file and put it in the `/etc/microshift/config.d/` configuration directory. For example, `/etc/microshift/config.d/10-feature-gate.yaml`.
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. Replace the default values in the `xyz` section of the {microshift-short} YAML with your valid values, or create a configuration snippet file with the sections you need.
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+
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.Feature gates configuration with example values
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[source,yaml]
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----
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# ...
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apiServer:
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featureGates:
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featureSet: TechPreviewNoUpgrade
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# ...
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apiServer:
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featureGates:
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featureSet: CustomNoUpgrade
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customNoUpgrade:
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enabled:
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- "CPUManagerPolicyAlphaOptions"
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- "MemoryQoS"
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disabled:
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- "SomeDefaultEnabledFeature"
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# ...
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----
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. Use the following configuration rules:
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.. You must set the `featureSet` field when configuring feature gates.
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.. When you use `customNoUpgrade` feature, you must set the `featureSet` to `CustomNoUpgrade`. The `customNoUpgrade` field is only valid when `featureSet: CustomNoUpgrade`.
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. Configure any settings required for the feature set you want to work with.
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. Restart {microshift-short} to apply the configuration changes by running the following command:
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+
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[source,terminal]
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----
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$ sudo systemctl restart microshift
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----
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