41 lines
1.2 KiB
Go
41 lines
1.2 KiB
Go
// +build windows
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package client
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import (
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"fmt"
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"github.com/Microsoft/hcsshim"
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"github.com/sirupsen/logrus"
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)
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// HotAddVhd hot-adds a VHD to a utility VM. This is used in the global one-utility-VM-
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// service-VM per host scenario. In order to do a graphdriver `Diff`, we hot-add the
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// sandbox to /mnt/<id> so that we can run `exportSandbox` inside the utility VM to
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// get a tar-stream of the sandboxes contents back to the daemon.
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func (config *Config) HotAddVhd(hostPath string, containerPath string, readOnly bool, mount bool) error {
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logrus.Debugf("opengcs: HotAddVhd: %s: %s", hostPath, containerPath)
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if config.Uvm == nil {
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return fmt.Errorf("cannot hot-add VHD as no utility VM is in configuration")
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}
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modification := &hcsshim.ResourceModificationRequestResponse{
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Resource: "MappedVirtualDisk",
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Data: hcsshim.MappedVirtualDisk{
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HostPath: hostPath,
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ContainerPath: containerPath,
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CreateInUtilityVM: true,
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ReadOnly: readOnly,
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AttachOnly: !mount,
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},
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Request: "Add",
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}
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if err := config.Uvm.Modify(modification); err != nil {
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return fmt.Errorf("failed to modify utility VM configuration for hot-add: %s", err)
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}
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logrus.Debugf("opengcs: HotAddVhd: %s added successfully", hostPath)
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return nil
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}
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