29 lines
1.1 KiB
Go
29 lines
1.1 KiB
Go
// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: MPL-2.0
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package extensioncommon
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import (
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"github.com/hashicorp/consul/envoyextensions/xdscommon"
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)
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// EnvoyExtender is the interface that all Envoy extensions must implement in order
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// to be dynamically executed during runtime.
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type EnvoyExtender interface {
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// CanApply checks whether the extension configured for this extender is eligible
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// for application based on the specified RuntimeConfig.
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CanApply(*RuntimeConfig) bool
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// Validate ensures the data in config can successfuly be used
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// to apply the specified Envoy extension.
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Validate(*RuntimeConfig) error
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// Extend updates indexed xDS structures to include patches for
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// built-in extensions. It is responsible for applying extensions to
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// the the appropriate xDS resources. If any portion of this function fails,
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// it will attempt continue and return an error. The caller can then determine
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// if it is better to use a partially applied extension or error out.
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Extend(*xdscommon.IndexedResources, *RuntimeConfig) (*xdscommon.IndexedResources, error)
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}
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