2023-06-02 19:49:57 +00:00
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// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: MPL-2.0
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package command
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import (
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"fmt"
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"sort"
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"strings"
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"github.com/posener/complete"
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)
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type NodePoolInfoCommand struct {
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Meta
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}
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func (c *NodePoolInfoCommand) Name() string {
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return "node pool info"
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}
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func (c *NodePoolInfoCommand) Synopsis() string {
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return "Fetch information about an existing node pool"
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}
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func (c *NodePoolInfoCommand) Help() string {
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helpText := `
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Usage: nomad node pool info <node-pool>
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Info is used to fetch information about an existing node pool.
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If ACLs are enabled, this command requires a token with the 'read'
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capability in a 'node_pool' policy that matches the node pool being targeted.
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General Options:
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` + generalOptionsUsage(usageOptsDefault) + `
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Info Options:
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-json
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Output the node pool in its JSON format.
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-t
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Format and display node pool using a Go template.
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`
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return strings.TrimSpace(helpText)
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}
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func (c *NodePoolInfoCommand) AutocompleteFlags() complete.Flags {
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return mergeAutocompleteFlags(c.Meta.AutocompleteFlags(FlagSetClient),
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complete.Flags{
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"-json": complete.PredictNothing,
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"-t": complete.PredictAnything,
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})
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}
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func (c *NodePoolInfoCommand) AutocompleteArgs() complete.Predictor {
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return nodePoolPredictor(c.Client, nil)
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}
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func (c *NodePoolInfoCommand) Run(args []string) int {
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var json bool
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var tmpl string
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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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flags.BoolVar(&json, "json", false, "")
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flags.StringVar(&tmpl, "t", "", "")
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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 only have one argument.
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args = flags.Args()
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if len(args) != 1 {
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c.Ui.Error("This command takes one argument: <node-pool>")
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c.Ui.Error(commandErrorText(c))
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return 1
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}
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// Lookup node pool by prefix.
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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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2023-06-06 19:02:26 +00:00
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pool, possible, err := nodePoolByPrefix(client, args[0])
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2023-06-02 19:49:57 +00:00
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if err != nil {
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c.Ui.Error(fmt.Sprintf("Error retrieving node pool: %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 node pools\n\n%s", formatNodePoolList(possible)))
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return 1
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}
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// Format output if requested.
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if json || tmpl != "" {
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out, err := Format(json, tmpl, pool)
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if err != nil {
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c.Ui.Error(err.Error())
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return 1
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}
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c.Ui.Output(out)
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return 0
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}
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// Print node pool information.
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basic := []string{
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fmt.Sprintf("Name|%s", pool.Name),
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fmt.Sprintf("Description|%s", pool.Description),
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}
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c.Ui.Output(formatKV(basic))
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c.Ui.Output(c.Colorize().Color("\n[bold]Metadata[reset]"))
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if len(pool.Meta) > 0 {
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var meta []string
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for k, v := range pool.Meta {
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meta = append(meta, fmt.Sprintf("%s|%s", k, v))
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}
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sort.Strings(meta)
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c.Ui.Output(formatKV(meta))
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} else {
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c.Ui.Output("No metadata")
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}
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c.Ui.Output(c.Colorize().Color("\n[bold]Scheduler Configuration[reset]"))
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if pool.SchedulerConfiguration != nil {
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schedConfig := []string{
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fmt.Sprintf("Scheduler Algorithm|%s", pool.SchedulerConfiguration.SchedulerAlgorithm),
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}
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c.Ui.Output(formatKV(schedConfig))
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} else {
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c.Ui.Output("No scheduler configuration")
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}
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return 0
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}
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