de25fc6cf4
* client/allocrunner/csi_hook: tag errors * nomad/client_csi_endpoint: tag errors * nomad/client_rpc: remove an unnecessary error tag * nomad/state/state_store: ControllerRequired fix intent We use ControllerRequired to indicate that a volume should use the publish/unpublish workflow, rather than that it has a controller. We need to check both RequiresControllerPlugin and SupportsAttachDetach from the fingerprint to check that. * nomad/csi_endpoint: tag errors * nomad/csi_endpoint_test: longer error messages, mock fingerprints
85 lines
2.3 KiB
Go
85 lines
2.3 KiB
Go
package nomad
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import (
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"errors"
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"fmt"
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"time"
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metrics "github.com/armon/go-metrics"
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log "github.com/hashicorp/go-hclog"
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cstructs "github.com/hashicorp/nomad/client/structs"
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)
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// ClientCSIController is used to forward RPC requests to the targed Nomad client's
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// CSIController endpoint.
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type ClientCSIController struct {
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srv *Server
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logger log.Logger
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}
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func (a *ClientCSIController) AttachVolume(args *cstructs.ClientCSIControllerAttachVolumeRequest, reply *cstructs.ClientCSIControllerAttachVolumeResponse) error {
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defer metrics.MeasureSince([]string{"nomad", "client_csi_controller", "attach_volume"}, time.Now())
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// Verify the arguments.
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if args.ControllerNodeID == "" {
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return errors.New("missing ControllerNodeID")
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}
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// Make sure Node is valid and new enough to support RPC
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snap, err := a.srv.State().Snapshot()
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if err != nil {
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return err
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}
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_, err = getNodeForRpc(snap, args.ControllerNodeID)
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if err != nil {
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return err
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}
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// Get the connection to the client
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state, ok := a.srv.getNodeConn(args.ControllerNodeID)
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if !ok {
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return findNodeConnAndForward(a.srv, args.ControllerNodeID, "ClientCSIController.AttachVolume", args, reply)
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}
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// Make the RPC
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err = NodeRpc(state.Session, "CSIController.AttachVolume", args, reply)
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if err != nil {
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return fmt.Errorf("attach volume: %v", err)
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}
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return nil
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}
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func (a *ClientCSIController) ValidateVolume(args *cstructs.ClientCSIControllerValidateVolumeRequest, reply *cstructs.ClientCSIControllerValidateVolumeResponse) error {
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defer metrics.MeasureSince([]string{"nomad", "client_csi_controller", "validate_volume"}, time.Now())
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// Verify the arguments.
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if args.ControllerNodeID == "" {
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return errors.New("missing ControllerNodeID")
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}
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// Make sure Node is valid and new enough to support RPC
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snap, err := a.srv.State().Snapshot()
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if err != nil {
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return err
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}
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_, err = getNodeForRpc(snap, args.ControllerNodeID)
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if err != nil {
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return err
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}
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// Get the connection to the client
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state, ok := a.srv.getNodeConn(args.ControllerNodeID)
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if !ok {
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return findNodeConnAndForward(a.srv, args.ControllerNodeID, "ClientCSIController.ValidateVolume", args, reply)
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}
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// Make the RPC
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err = NodeRpc(state.Session, "CSIController.ValidateVolume", args, reply)
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if err != nil {
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return fmt.Errorf("validate volume: %v", err)
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}
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return nil
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}
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