open-consul/agent/grpc-external/services/peerstream/server.go
Dan Upton 34140ff3e0
grpc: rename public/private directories to external/internal (#13721)
Previously, public referred to gRPC services that are both exposed on
the dedicated gRPC port and have their definitions in the proto-public
directory (so were considered usable by 3rd parties). Whereas private
referred to services on the multiplexed server port that are only usable
by agents and other servers.

Now, we're splitting these definitions, such that external/internal
refers to the port and public/private refers to whether they can be used
by 3rd parties.

This is necessary because the peering replication API needs to be
exposed on the dedicated port, but is not (yet) suitable for use by 3rd
parties.
2022-07-13 16:33:48 +01:00

102 lines
3.8 KiB
Go

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