147 lines
3.5 KiB
Go
147 lines
3.5 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/posener/complete"
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)
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type NamespaceStatusCommand struct {
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Meta
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}
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func (c *NamespaceStatusCommand) Help() string {
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helpText := `
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Usage: nomad namespace status [options] <namespace>
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Status is used to view the status of a particular namespace.
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If ACLs are enabled, this command requires a management ACL token or a token
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that has a capability associated with the namespace.
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General Options:
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` + generalOptionsUsage(usageOptsDefault|usageOptsNoNamespace)
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return strings.TrimSpace(helpText)
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}
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func (c *NamespaceStatusCommand) AutocompleteFlags() complete.Flags {
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return c.Meta.AutocompleteFlags(FlagSetClient)
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}
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func (c *NamespaceStatusCommand) AutocompleteArgs() complete.Predictor {
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return NamespacePredictor(c.Meta.Client, nil)
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}
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func (c *NamespaceStatusCommand) Synopsis() string {
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return "Display a namespace's status"
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}
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func (c *NamespaceStatusCommand) Name() string { return "namespace status" }
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func (c *NamespaceStatusCommand) 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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if err := flags.Parse(args); err != nil {
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return 1
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}
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// Check that we got one arguments
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args = flags.Args()
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if l := len(args); l != 1 {
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c.Ui.Error("This command takes one argument: <namespace>")
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c.Ui.Error(commandErrorText(c))
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return 1
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}
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name := args[0]
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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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// Do a prefix lookup
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ns, possible, err := getNamespace(client.Namespaces(), name)
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if err != nil {
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c.Ui.Error(fmt.Sprintf("Error retrieving namespaces: %s", err))
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return 1
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}
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if len(possible) != 0 {
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c.Ui.Error(fmt.Sprintf("Prefix matched multiple namespaces\n\n%s", formatNamespaces(possible)))
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return 1
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}
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c.Ui.Output(formatNamespaceBasics(ns))
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if ns.Quota != "" {
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quotas := client.Quotas()
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spec, _, err := quotas.Info(ns.Quota, nil)
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if err != nil {
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c.Ui.Error(fmt.Sprintf("Error retrieving quota spec: %s", err))
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return 1
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}
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// Get the quota usages
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usages, failures := quotaUsages(spec, quotas)
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// Format the limits
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c.Ui.Output(c.Colorize().Color("\n[bold]Quota Limits[reset]"))
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c.Ui.Output(formatQuotaLimits(spec, usages))
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// Display any failures
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if len(failures) != 0 {
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c.Ui.Error(c.Colorize().Color("\n[bold][red]Lookup Failures[reset]"))
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for region, failure := range failures {
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c.Ui.Error(fmt.Sprintf(" * Failed to retrieve quota usage for region %q: %v", region, failure))
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return 1
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}
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}
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}
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return 0
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}
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// formatNamespaceBasics formats the basic information of the namespace
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func formatNamespaceBasics(ns *api.Namespace) string {
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basic := []string{
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fmt.Sprintf("Name|%s", ns.Name),
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fmt.Sprintf("Description|%s", ns.Description),
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fmt.Sprintf("Quota|%s", ns.Quota),
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}
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return formatKV(basic)
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}
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func getNamespace(client *api.Namespaces, ns string) (match *api.Namespace, possible []*api.Namespace, err error) {
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// Do a prefix lookup
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namespaces, _, err := client.PrefixList(ns, nil)
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if err != nil {
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return nil, nil, err
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}
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l := len(namespaces)
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switch {
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case l == 0:
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return nil, nil, fmt.Errorf("Namespace %q matched no namespaces", ns)
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case l == 1:
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return namespaces[0], nil, nil
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default:
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// search for an exact match in the returned namespaces
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for _, namespace := range namespaces {
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if namespace.Name == ns {
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return namespace, nil, nil
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}
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}
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// if not found, return the fuzzy matches.
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return nil, namespaces, nil
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}
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}
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