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c7ef04c597
* extensions: refactor PluginConfiguration into a more generic type ExtensionConfiguration Also: * adds endpoints configuration to lambda golden tests * uses string constant for builtin/aws/lambda Co-authored-by: Eric <eric@haberkorn.co>
53 lines
2.1 KiB
Go
53 lines
2.1 KiB
Go
package serverlessplugin
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import (
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envoy_cluster_v3 "github.com/envoyproxy/go-control-plane/envoy/config/cluster/v3"
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envoy_listener_v3 "github.com/envoyproxy/go-control-plane/envoy/config/listener/v3"
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envoy_route_v3 "github.com/envoyproxy/go-control-plane/envoy/config/route/v3"
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"github.com/hashicorp/consul/agent/xds/xdscommon"
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"github.com/hashicorp/consul/api"
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)
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// patcher is the interface that each serverless integration must implement. It
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// is responsible for modifying the xDS structures based on only the state of
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// the patcher.
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type patcher interface {
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// CanPatch determines if the patcher can mutate resources for the given api.ServiceKind
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CanPatch(api.ServiceKind) bool
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// patchRoute patches a route to include the custom Envoy configuration
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// PatchCluster patches a cluster to include the custom Envoy configuration
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// required to integrate with the serverless integration.
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PatchRoute(*envoy_route_v3.RouteConfiguration) (*envoy_route_v3.RouteConfiguration, bool, error)
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// PatchCluster patches a cluster to include the custom Envoy configuration
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// required to integrate with the serverless integration.
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PatchCluster(*envoy_cluster_v3.Cluster) (*envoy_cluster_v3.Cluster, bool, error)
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// PatchFilter patches an Envoy filter to include the custom Envoy
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// configuration required to integrate with the serverless integration.
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PatchFilter(*envoy_listener_v3.Filter) (*envoy_listener_v3.Filter, bool, error)
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}
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type patchers map[api.CompoundServiceName]patcher
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func makePatcher(config xdscommon.ExtensionConfiguration) patcher {
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for _, constructor := range patchConstructors {
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patcher, ok := constructor(config.EnvoyExtension, config.OutgoingProxyKind())
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if ok {
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return patcher
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}
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}
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return nil
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}
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// patchConstructor is used to construct patchers based on
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// xdscommon.ServiceConfig. This function contains all of the logic around
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// turning Meta data into the patcher.
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type patchConstructor func(extension api.EnvoyExtension, upstreamKind api.ServiceKind) (patcher, bool)
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// patchConstructors contains all patchers that getPatchers tries to create.
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var patchConstructors = []patchConstructor{makeLambdaPatcher}
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