open-nomad/plugins/drivers/plugin.go
2018-12-01 17:30:54 +01:00

62 lines
1.6 KiB
Go

package drivers
import (
"context"
hclog "github.com/hashicorp/go-hclog"
plugin "github.com/hashicorp/go-plugin"
"github.com/hashicorp/nomad/plugins/base"
baseproto "github.com/hashicorp/nomad/plugins/base/proto"
"github.com/hashicorp/nomad/plugins/drivers/proto"
"google.golang.org/grpc"
)
// PluginDriver wraps a DriverPlugin and implements go-plugins GRPCPlugin
// interface to expose the the interface over gRPC
type PluginDriver struct {
plugin.NetRPCUnsupportedPlugin
impl DriverPlugin
logger hclog.Logger
}
func NewDriverPlugin(d DriverPlugin, logger hclog.Logger) plugin.GRPCPlugin {
return &PluginDriver{
impl: d,
logger: logger.Named("driver_plugin"),
}
}
func (p *PluginDriver) GRPCServer(broker *plugin.GRPCBroker, s *grpc.Server) error {
proto.RegisterDriverServer(s, &driverPluginServer{
impl: p.impl,
broker: broker,
logger: p.logger,
})
return nil
}
func (p *PluginDriver) GRPCClient(ctx context.Context, broker *plugin.GRPCBroker, c *grpc.ClientConn) (interface{}, error) {
return &driverPluginClient{
BasePluginClient: &base.BasePluginClient{
DoneCtx: ctx,
Client: baseproto.NewBasePluginClient(c),
},
client: proto.NewDriverClient(c),
logger: p.logger,
doneCtx: ctx,
}, nil
}
// Serve is used to serve a driverplugin
func Serve(d DriverPlugin, logger hclog.Logger) {
plugin.Serve(&plugin.ServeConfig{
HandshakeConfig: base.Handshake,
Plugins: map[string]plugin.Plugin{
base.PluginTypeBase: &base.PluginBase{Impl: d},
base.PluginTypeDriver: &PluginDriver{impl: d, logger: logger},
},
GRPCServer: plugin.DefaultGRPCServer,
Logger: logger,
})
}