mirror of https://github.com/hashicorp/consul
48 lines
1.8 KiB
Go
48 lines
1.8 KiB
Go
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package extensioncommon
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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/envoyextensions/xdscommon"
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"strings"
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)
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// GetListenerEnvoyID returns the Envoy ID string parsed from the name of the given Listener. If none is found, it
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// returns the empty string.
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func GetListenerEnvoyID(l *envoy_listener_v3.Listener) string {
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if id, _, found := strings.Cut(l.Name, ":"); found {
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return id
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}
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return ""
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}
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// IsLocalAppCluster returns true if the given Cluster represents the local Cluster, which receives inbound traffic to
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// the local proxy.
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func IsLocalAppCluster(c *envoy_cluster_v3.Cluster) bool {
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return c.Name == xdscommon.LocalAppClusterName
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}
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// IsRouteToLocalAppCluster takes a RouteConfiguration and returns true if all routes within it target the local
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// Cluster. Note that because we currently target RouteConfiguration in PatchRoute, we have to check multiple individual
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// Route resources.
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func IsRouteToLocalAppCluster(r *envoy_route_v3.RouteConfiguration) bool {
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clusterNames := RouteClusterNames(r)
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_, match := clusterNames[xdscommon.LocalAppClusterName]
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return match && len(clusterNames) == 1
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}
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// IsInboundPublicListener returns true if the given Listener represents the inbound public Listener for the local
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// service.
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func IsInboundPublicListener(l *envoy_listener_v3.Listener) bool {
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return GetListenerEnvoyID(l) == xdscommon.PublicListenerName
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}
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// IsOutboundTProxyListener returns true if the given Listener represents the outbound TProxy Listener for the local
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// service.
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func IsOutboundTProxyListener(l *envoy_listener_v3.Listener) bool {
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return GetListenerEnvoyID(l) == xdscommon.OutboundListenerName
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}
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