114 lines
3.6 KiB
Go
114 lines
3.6 KiB
Go
package proxycfg
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import (
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"context"
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"github.com/hashicorp/consul/agent/structs"
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"github.com/mitchellh/copystructure"
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)
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type configSnapshotConnectProxy struct {
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Leaf *structs.IssuedCert
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DiscoveryChain map[string]*structs.CompiledDiscoveryChain // this is keyed by the Upstream.Identifier(), not the chain name
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WatchedUpstreams map[string]map[string]context.CancelFunc
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WatchedUpstreamEndpoints map[string]map[string]structs.CheckServiceNodes
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WatchedGateways map[string]map[string]context.CancelFunc
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WatchedGatewayEndpoints map[string]map[string]structs.CheckServiceNodes
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WatchedServiceChecks map[string][]structs.CheckType // TODO: missing garbage collection
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UpstreamEndpoints map[string]structs.CheckServiceNodes // DEPRECATED:see:WatchedUpstreamEndpoints
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}
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func (c *configSnapshotConnectProxy) IsEmpty() bool {
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if c == nil {
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return true
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}
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return c.Leaf == nil &&
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len(c.DiscoveryChain) == 0 &&
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len(c.WatchedUpstreams) == 0 &&
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len(c.WatchedUpstreamEndpoints) == 0 &&
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len(c.WatchedGateways) == 0 &&
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len(c.WatchedGatewayEndpoints) == 0 &&
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len(c.WatchedServiceChecks) == 0 &&
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len(c.UpstreamEndpoints) == 0
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}
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type configSnapshotMeshGateway struct {
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WatchedServices map[string]context.CancelFunc
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WatchedServicesSet bool
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WatchedDatacenters map[string]context.CancelFunc
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ServiceGroups map[string]structs.CheckServiceNodes
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ServiceResolvers map[string]*structs.ServiceResolverConfigEntry
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GatewayGroups map[string]structs.CheckServiceNodes
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}
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func (c *configSnapshotMeshGateway) IsEmpty() bool {
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if c == nil {
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return true
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}
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return len(c.WatchedServices) == 0 &&
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!c.WatchedServicesSet &&
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len(c.WatchedDatacenters) == 0 &&
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len(c.ServiceGroups) == 0 &&
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len(c.ServiceResolvers) == 0 &&
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len(c.GatewayGroups) == 0
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}
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// ConfigSnapshot captures all the resulting config needed for a proxy instance.
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// It is meant to be point-in-time coherent and is used to deliver the current
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// config state to observers who need it to be pushed in (e.g. XDS server).
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type ConfigSnapshot struct {
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Kind structs.ServiceKind
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Service string
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ProxyID string
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Address string
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Port int
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TaggedAddresses map[string]structs.ServiceAddress
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Proxy structs.ConnectProxyConfig
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Datacenter string
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Roots *structs.IndexedCARoots
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// connect-proxy specific
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ConnectProxy configSnapshotConnectProxy
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// mesh-gateway specific
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MeshGateway configSnapshotMeshGateway
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// Skip intentions for now as we don't push those down yet, just pre-warm them.
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}
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// Valid returns whether or not the snapshot has all required fields filled yet.
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func (s *ConfigSnapshot) Valid() bool {
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switch s.Kind {
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case structs.ServiceKindConnectProxy:
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return s.Roots != nil && s.ConnectProxy.Leaf != nil
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case structs.ServiceKindMeshGateway:
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return s.Roots != nil && (s.MeshGateway.WatchedServicesSet || len(s.MeshGateway.WatchedServices) > 0)
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default:
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return false
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}
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}
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// Clone makes a deep copy of the snapshot we can send to other goroutines
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// without worrying that they will racily read or mutate shared maps etc.
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func (s *ConfigSnapshot) Clone() (*ConfigSnapshot, error) {
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snapCopy, err := copystructure.Copy(s)
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if err != nil {
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return nil, err
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}
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snap := snapCopy.(*ConfigSnapshot)
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// nil these out as anything receiving one of these clones does not need them and should never "cancel" our watches
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switch s.Kind {
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case structs.ServiceKindConnectProxy:
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snap.ConnectProxy.WatchedUpstreams = nil
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snap.ConnectProxy.WatchedGateways = nil
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case structs.ServiceKindMeshGateway:
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snap.MeshGateway.WatchedDatacenters = nil
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snap.MeshGateway.WatchedServices = nil
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}
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return snap, nil
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}
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