8af5bd1ad4
Consumers of the CSI HTTP API are expecting a response object and not a slice of snapshots. Fix the return value.
112 lines
2.9 KiB
Go
112 lines
2.9 KiB
Go
package command
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import (
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"fmt"
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"strings"
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"github.com/hashicorp/nomad/api"
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"github.com/hashicorp/nomad/api/contexts"
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"github.com/posener/complete"
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)
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type VolumeSnapshotCreateCommand struct {
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Meta
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}
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func (c *VolumeSnapshotCreateCommand) Help() string {
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helpText := `
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Usage: nomad volume snapshot create <volume id> [snapshot_name]
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Create a snapshot of an external storage volume. This command requires a
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volume ID or prefix. If there is an exact match based on the provided volume
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ID or prefix, then the specific volume is snapshotted. Otherwise, a list of
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matching volumes and information will be displayed. The volume must still be
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registered with Nomad in order to be snapshotted.
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If an optional snapshot name is provided, the argument will be passed to the
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CSI plugin to be used as the ID of the resulting snapshot. Not all plugins
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accept this name and it may be ignored.
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When ACLs are enabled, this command requires a token with the
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'csi-write-volume' capability for the volume's namespace.
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General Options:
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` + generalOptionsUsage(usageOptsDefault) + `
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`
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return strings.TrimSpace(helpText)
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}
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func (c *VolumeSnapshotCreateCommand) AutocompleteFlags() complete.Flags {
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return mergeAutocompleteFlags(c.Meta.AutocompleteFlags(FlagSetClient),
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complete.Flags{})
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}
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func (c *VolumeSnapshotCreateCommand) AutocompleteArgs() complete.Predictor {
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return complete.PredictFunc(func(a complete.Args) []string {
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client, err := c.Meta.Client()
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if err != nil {
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return nil
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}
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resp, _, err := client.Search().PrefixSearch(a.Last, contexts.Volumes, nil)
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if err != nil {
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return []string{}
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}
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matches := resp.Matches[contexts.Volumes]
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return matches
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})
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}
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func (c *VolumeSnapshotCreateCommand) Synopsis() string {
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return "Snapshot a volume"
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}
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func (c *VolumeSnapshotCreateCommand) Name() string { return "volume snapshot create" }
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func (c *VolumeSnapshotCreateCommand) Run(args []string) int {
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flags := c.Meta.FlagSet(c.Name(), FlagSetClient)
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flags.Usage = func() { c.Ui.Output(c.Help()) }
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var verbose bool
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flags.BoolVar(&verbose, "verbose", false, "")
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if err := flags.Parse(args); err != nil {
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c.Ui.Error(fmt.Sprintf("Error parsing arguments %s", err))
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return 1
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}
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// Check that we at least one argument
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args = flags.Args()
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if l := len(args); l == 0 {
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c.Ui.Error("This command takes at least one argument: <vol id> [snapshot name]")
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c.Ui.Error(commandErrorText(c))
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return 1
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}
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volID := args[0]
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snapshotName := ""
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if len(args) == 2 {
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snapshotName = args[1]
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}
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// Get the HTTP client
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client, err := c.Meta.Client()
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if err != nil {
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c.Ui.Error(fmt.Sprintf("Error initializing client: %s", err))
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return 1
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}
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snaps, _, err := client.CSIVolumes().CreateSnapshot(&api.CSISnapshot{
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SourceVolumeID: volID,
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Name: snapshotName,
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}, nil)
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if err != nil {
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c.Ui.Error(fmt.Sprintf("Error snapshotting volume: %s", err))
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return 1
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}
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c.Ui.Output(csiFormatSnapshots(snaps.Snapshots, verbose))
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return 0
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}
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