open-nomad/command/quota_list.go

127 lines
2.7 KiB
Go

// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: MPL-2.0
package command
import (
"fmt"
"sort"
"strings"
"github.com/hashicorp/nomad/api"
"github.com/posener/complete"
)
type QuotaListCommand struct {
Meta
}
func (c *QuotaListCommand) Help() string {
helpText := `
Usage: nomad quota list [options]
List is used to list available quota specifications.
If ACLs are enabled, this command requires a token with the 'quota:read'
capability. Any quotas applied to namespaces that the token does not have
access to will be filtered from the results.
General Options:
` + generalOptionsUsage(usageOptsDefault) + `
List Options:
-json
Output the quota specifications in a JSON format.
-t
Format and display the quota specifications using a Go template.
`
return strings.TrimSpace(helpText)
}
func (c *QuotaListCommand) AutocompleteFlags() complete.Flags {
return mergeAutocompleteFlags(c.Meta.AutocompleteFlags(FlagSetClient),
complete.Flags{
"-json": complete.PredictNothing,
"-t": complete.PredictAnything,
})
}
func (c *QuotaListCommand) AutocompleteArgs() complete.Predictor {
return complete.PredictNothing
}
func (c *QuotaListCommand) Synopsis() string {
return "List quota specifications"
}
func (c *QuotaListCommand) Name() string { return "quota list" }
func (c *QuotaListCommand) Run(args []string) int {
var json bool
var tmpl string
flags := c.Meta.FlagSet(c.Name(), FlagSetClient)
flags.Usage = func() { c.Ui.Output(c.Help()) }
flags.BoolVar(&json, "json", false, "")
flags.StringVar(&tmpl, "t", "", "")
if err := flags.Parse(args); err != nil {
return 1
}
// Check that we got no arguments
args = flags.Args()
if l := len(args); l != 0 {
c.Ui.Error("This command takes no arguments")
c.Ui.Error(commandErrorText(c))
return 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
}
quotas, _, err := client.Quotas().List(nil)
if err != nil {
c.Ui.Error(fmt.Sprintf("Error retrieving quotas: %s", err))
return 1
}
if json || len(tmpl) > 0 {
out, err := Format(json, tmpl, quotas)
if err != nil {
c.Ui.Error(err.Error())
return 1
}
c.Ui.Output(out)
return 0
}
c.Ui.Output(formatQuotaSpecs(quotas))
return 0
}
func formatQuotaSpecs(quotas []*api.QuotaSpec) string {
if len(quotas) == 0 {
return "No quotas found"
}
// Sort the output by quota name
sort.Slice(quotas, func(i, j int) bool { return quotas[i].Name < quotas[j].Name })
rows := make([]string, len(quotas)+1)
rows[0] = "Name|Description"
for i, qs := range quotas {
rows[i+1] = fmt.Sprintf("%s|%s",
qs.Name,
qs.Description)
}
return formatList(rows)
}