67 lines
2.4 KiB
Go
67 lines
2.4 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 "github.com/hashicorp/consul/api"
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// UpstreamData has the SNI, EnvoyID, and OutgoingProxyKind of the upstream services for the local proxy and this data
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// is used to choose which Envoy resources to patch.
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type UpstreamData struct {
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// SNI is the SNI header used to reach an upstream service.
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SNI map[string]struct{}
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// EnvoyID is the envoy ID of an upstream service, structured <service> or <partition>/<ns>/<service> when using a
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// non-default namespace or partition.
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EnvoyID string
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// OutgoingProxyKind is the type of proxy of the upstream service. However, if the upstream is "typical" this will
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// be set to "connect-proxy" instead.
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OutgoingProxyKind api.ServiceKind
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// VIP is the tproxy virtual IP used to reach an upstream service.
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VIP string
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}
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// RuntimeConfig is the configuration for an extension attached to a service on the local proxy. Currently, it
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// is only created for the local proxy's upstream service if the upstream service has an extension configured. In the
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// future it will also include information about the service local to the local proxy as well. It should depend on the
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// API client rather than the structs package because the API client is meant to be public.
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type RuntimeConfig struct {
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// EnvoyExtension is the extension that will patch Envoy resources.
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EnvoyExtension api.EnvoyExtension
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// ServiceName is the name of the service the EnvoyExtension is being applied to. It could be the local service or
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// an upstream of the local service.
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ServiceName api.CompoundServiceName
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// Upstreams will only be configured if the EnvoyExtension is being applied to an upstream.
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// If there are no Upstreams, then EnvoyExtension is being applied to the local service's resources.
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Upstreams map[api.CompoundServiceName]*UpstreamData
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// Kind is mode the local Envoy proxy is running in. For now, only connect proxy and
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// terminating gateways are supported.
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Kind api.ServiceKind
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}
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func (ec RuntimeConfig) IsUpstream() bool {
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_, ok := ec.Upstreams[ec.ServiceName]
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return ok
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}
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func (ec RuntimeConfig) MatchesUpstreamServiceSNI(sni string) bool {
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u := ec.Upstreams[ec.ServiceName]
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_, match := u.SNI[sni]
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return match
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}
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func (ec RuntimeConfig) EnvoyID() string {
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u := ec.Upstreams[ec.ServiceName]
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return u.EnvoyID
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}
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func (ec RuntimeConfig) OutgoingProxyKind() api.ServiceKind {
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u := ec.Upstreams[ec.ServiceName]
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return u.OutgoingProxyKind
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}
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