open-consul/agent/grpc-external/server.go

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package external
import (
"time"
middleware "github.com/grpc-ecosystem/go-grpc-middleware"
recovery "github.com/grpc-ecosystem/go-grpc-middleware/recovery"
"google.golang.org/grpc"
"google.golang.org/grpc/keepalive"
agentmiddleware "github.com/hashicorp/consul/agent/grpc-middleware"
)
// NewServer constructs a gRPC server for the external gRPC port, to which
// handlers can be registered.
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func NewServer(logger agentmiddleware.Logger) *grpc.Server {
recoveryOpts := agentmiddleware.PanicHandlerMiddlewareOpts(logger)
opts := []grpc.ServerOption{
grpc.MaxConcurrentStreams(2048),
middleware.WithUnaryServerChain(
// Add middlware interceptors to recover in case of panics.
recovery.UnaryServerInterceptor(recoveryOpts...),
),
middleware.WithStreamServerChain(
// Add middlware interceptors to recover in case of panics.
recovery.StreamServerInterceptor(recoveryOpts...),
),
grpc.KeepaliveEnforcementPolicy(keepalive.EnforcementPolicy{
// This must be less than the keealive.ClientParameters Time setting, otherwise
// the server will disconnect the client for sending too many keepalive pings.
// Currently the client param is set to 30s.
MinTime: 15 * time.Second,
}),
}
return grpc.NewServer(opts...)
}