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plugin.go
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plugin.go
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package capability
import (
context "context"
"github.com/hashicorp/go-plugin"
capabilityv1 "github.com/rancher/opni/pkg/apis/capability/v1"
"github.com/rancher/opni/pkg/plugins"
"google.golang.org/grpc"
)
const (
CapabilityBackendPluginID = "opni.backends.Capability"
CapabilityNodePluginID = "opni.backends.CapabilityNode"
ServiceID = "capability.Backend"
NodeServiceID = "capability.Node"
)
type capabilityBackendPlugin struct {
plugin.NetRPCUnsupportedPlugin
backendSrv capabilityv1.BackendServer
}
var _ plugin.GRPCPlugin = (*capabilityBackendPlugin)(nil)
var _ plugin.Plugin = (*capabilityBackendPlugin)(nil)
func (p *capabilityBackendPlugin) GRPCServer(
_ *plugin.GRPCBroker,
s *grpc.Server,
) error {
capabilityv1.RegisterBackendServer(s, p.backendSrv)
return nil
}
func (p *capabilityBackendPlugin) GRPCClient(
ctx context.Context,
_ *plugin.GRPCBroker,
c *grpc.ClientConn,
) (interface{}, error) {
if err := plugins.CheckAvailability(ctx, c, ServiceID); err != nil {
return nil, err
}
return capabilityv1.NewBackendClient(c), nil
}
func NewPlugin(backend capabilityv1.BackendServer) plugin.Plugin {
return &capabilityBackendPlugin{
backendSrv: backend,
}
}
type capabilityAgentPlugin struct {
plugin.NetRPCUnsupportedPlugin
nodeSrv capabilityv1.NodeServer
}
var _ plugin.GRPCPlugin = (*capabilityAgentPlugin)(nil)
var _ plugin.Plugin = (*capabilityAgentPlugin)(nil)
func NewAgentPlugin(node capabilityv1.NodeServer) plugin.Plugin {
return &capabilityAgentPlugin{
nodeSrv: node,
}
}
func (p *capabilityAgentPlugin) GRPCServer(
_ *plugin.GRPCBroker,
s *grpc.Server,
) error {
capabilityv1.RegisterNodeServer(s, p.nodeSrv)
return nil
}
func (p *capabilityAgentPlugin) GRPCClient(
ctx context.Context,
_ *plugin.GRPCBroker,
c *grpc.ClientConn,
) (interface{}, error) {
if err := plugins.CheckAvailability(ctx, c, NodeServiceID); err != nil {
return nil, err
}
return capabilityv1.NewNodeClient(c), nil
}
func init() {
plugins.GatewayScheme.Add(CapabilityBackendPluginID, NewPlugin(nil))
plugins.AgentScheme.Add(CapabilityNodePluginID, NewAgentPlugin(nil))
}