open-nomad/command/volume_detach.go

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package command
import (
"fmt"
"strings"
"github.com/hashicorp/nomad/api/contexts"
"github.com/posener/complete"
)
type VolumeDetachCommand struct {
Meta
}
func (c *VolumeDetachCommand) Help() string {
helpText := `
Usage: nomad volume detach [options] <vol id> <node id>
Detach a volume from a Nomad client.
General Options:
` + generalOptionsUsage() + `
`
return strings.TrimSpace(helpText)
}
func (c *VolumeDetachCommand) AutocompleteFlags() complete.Flags {
return mergeAutocompleteFlags(c.Meta.AutocompleteFlags(FlagSetClient),
complete.Flags{})
}
func (c *VolumeDetachCommand) AutocompleteArgs() complete.Predictor {
return complete.PredictFunc(func(a complete.Args) []string {
client, err := c.Meta.Client()
if err != nil {
return nil
}
resp, _, err := client.Search().PrefixSearch(a.Last, contexts.Volumes, nil)
if err != nil {
return []string{}
}
matches := resp.Matches[contexts.Volumes]
resp, _, err = client.Search().PrefixSearch(a.Last, contexts.Nodes, nil)
if err != nil {
return []string{}
}
for _, match := range resp.Matches[contexts.Nodes] {
matches = append(matches, match)
}
return matches
})
}
func (c *VolumeDetachCommand) Synopsis() string {
return "Detach a volume"
}
func (c *VolumeDetachCommand) Name() string { return "volume detach" }
func (c *VolumeDetachCommand) Run(args []string) int {
flags := c.Meta.FlagSet(c.Name(), FlagSetClient)
flags.Usage = func() { c.Ui.Output(c.Help()) }
if err := flags.Parse(args); err != nil {
c.Ui.Error(fmt.Sprintf("Error parsing arguments %s", err))
return 1
}
// Check that we get exactly two arguments
args = flags.Args()
if l := len(args); l != 2 {
c.Ui.Error("This command takes two arguments: <vol id> <node id>")
c.Ui.Error(commandErrorText(c))
return 1
}
volID := args[0]
nodeID := args[1]
// Get the HTTP client
client, err := c.Meta.Client()
if err != nil {
c.Ui.Error(fmt.Sprintf("Error initializing client: %s", err))
return 1
}
err = client.CSIVolumes().Detach(volID, nodeID, nil)
if err != nil {
c.Ui.Error(fmt.Sprintf("Error detaching volume: %s", err))
return 1
}
return 0
}