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Peer replication is intended to be between separate Consul installs and effectively should be considered "external". This PR moves the peer stream replication bidirectional RPC endpoint to the external gRPC server and ensures that things continue to function.
102 lines
3.8 KiB
Go
102 lines
3.8 KiB
Go
package peerstream
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import (
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"github.com/hashicorp/go-hclog"
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"github.com/hashicorp/go-memdb"
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"google.golang.org/grpc"
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"github.com/hashicorp/consul/acl"
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"github.com/hashicorp/consul/acl/resolver"
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"github.com/hashicorp/consul/agent/consul/state"
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"github.com/hashicorp/consul/agent/consul/stream"
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"github.com/hashicorp/consul/agent/structs"
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"github.com/hashicorp/consul/proto/pbpeering"
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"github.com/hashicorp/consul/proto/pbpeerstream"
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)
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// TODO(peering): fix up these interfaces to be more testable now that they are
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// extracted from private peering
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type Server struct {
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Config
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}
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type Config struct {
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Backend Backend
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Tracker *Tracker
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GetStore func() StateStore
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Logger hclog.Logger
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ACLResolver ACLResolver
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// Datacenter of the Consul server this gRPC server is hosted on
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Datacenter string
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ConnectEnabled bool
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}
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//go:generate mockery --name ACLResolver --inpackage
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type ACLResolver interface {
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ResolveTokenAndDefaultMeta(string, *acl.EnterpriseMeta, *acl.AuthorizerContext) (resolver.Result, error)
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}
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func NewServer(cfg Config) *Server {
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requireNotNil(cfg.Backend, "Backend")
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requireNotNil(cfg.Tracker, "Tracker")
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requireNotNil(cfg.GetStore, "GetStore")
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requireNotNil(cfg.Logger, "Logger")
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// requireNotNil(cfg.ACLResolver, "ACLResolver") // TODO(peering): reenable check when ACLs are required
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if cfg.Datacenter == "" {
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panic("Datacenter is required")
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}
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return &Server{
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Config: cfg,
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}
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}
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func requireNotNil(v interface{}, name string) {
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if v == nil {
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panic(name + " is required")
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}
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}
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var _ pbpeerstream.PeerStreamServiceServer = (*Server)(nil)
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func (s *Server) Register(grpcServer *grpc.Server) {
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pbpeerstream.RegisterPeerStreamServiceServer(grpcServer, s)
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}
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type Backend interface {
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Subscribe(req *stream.SubscribeRequest) (*stream.Subscription, error)
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// IsLeader indicates whether the consul server is in a leader state or not.
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IsLeader() bool
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// SetLeaderAddress is called on a raft.LeaderObservation in a go routine
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// in the consul server; see trackLeaderChanges()
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SetLeaderAddress(string)
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// GetLeaderAddress provides the best hint for the current address of the
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// leader. There is no guarantee that this is the actual address of the
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// leader.
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GetLeaderAddress() string
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PeeringTerminateByID(req *pbpeering.PeeringTerminateByIDRequest) error
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PeeringTrustBundleWrite(req *pbpeering.PeeringTrustBundleWriteRequest) error
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CatalogRegister(req *structs.RegisterRequest) error
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CatalogDeregister(req *structs.DeregisterRequest) error
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}
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// StateStore provides a read-only interface for querying Peering data.
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type StateStore interface {
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PeeringRead(ws memdb.WatchSet, q state.Query) (uint64, *pbpeering.Peering, error)
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PeeringReadByID(ws memdb.WatchSet, id string) (uint64, *pbpeering.Peering, error)
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PeeringList(ws memdb.WatchSet, entMeta acl.EnterpriseMeta) (uint64, []*pbpeering.Peering, error)
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PeeringTrustBundleRead(ws memdb.WatchSet, q state.Query) (uint64, *pbpeering.PeeringTrustBundle, error)
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PeeringTrustBundleList(ws memdb.WatchSet, entMeta acl.EnterpriseMeta) (uint64, []*pbpeering.PeeringTrustBundle, error)
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ExportedServicesForPeer(ws memdb.WatchSet, peerID, dc string) (uint64, *structs.ExportedServiceList, error)
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ServiceDump(ws memdb.WatchSet, kind structs.ServiceKind, useKind bool, entMeta *acl.EnterpriseMeta, peerName string) (uint64, structs.CheckServiceNodes, error)
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CheckServiceNodes(ws memdb.WatchSet, serviceName string, entMeta *acl.EnterpriseMeta, peerName string) (uint64, structs.CheckServiceNodes, error)
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NodeServices(ws memdb.WatchSet, nodeNameOrID string, entMeta *acl.EnterpriseMeta, peerName string) (uint64, *structs.NodeServices, error)
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CAConfig(ws memdb.WatchSet) (uint64, *structs.CAConfiguration, error)
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TrustBundleListByService(ws memdb.WatchSet, service, dc string, entMeta acl.EnterpriseMeta) (uint64, []*pbpeering.PeeringTrustBundle, error)
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AbandonCh() <-chan struct{}
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}
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