130 lines
3.3 KiB
Go
130 lines
3.3 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/mitchellh/cli"
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"github.com/posener/complete"
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)
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// Ensure ScalingPolicyInfoCommand satisfies the cli.Command interface.
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var _ cli.Command = &ScalingPolicyInfoCommand{}
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// ScalingPolicyListCommand implements cli.Command.
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type ScalingPolicyInfoCommand struct {
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Meta
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}
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// Help satisfies the cli.Command Help function.
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func (s *ScalingPolicyInfoCommand) Help() string {
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helpText := `
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Usage: nomad scaling policy info [options] <policy_id>
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Info is used to read the specified scaling policy.
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If ACLs are enabled, this command requires a token with the 'read-job' and
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'list-jobs' capabilities for the policy's namespace.
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General Options:
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` + generalOptionsUsage(usageOptsDefault) + `
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Policy Info Options:
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-json
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Output the scaling policy in its JSON format.
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-t
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Format and display the scaling policy using a Go template.
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`
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return strings.TrimSpace(helpText)
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}
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// Synopsis satisfies the cli.Command Synopsis function.
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func (s *ScalingPolicyInfoCommand) Synopsis() string {
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return "Display an individual Nomad scaling policy"
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}
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func (s *ScalingPolicyInfoCommand) AutocompleteFlags() complete.Flags {
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return mergeAutocompleteFlags(s.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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// Name returns the name of this command.
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func (s *ScalingPolicyInfoCommand) Name() string { return "scaling policy info" }
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// Run satisfies the cli.Command Run function.
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func (s *ScalingPolicyInfoCommand) Run(args []string) int {
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var json bool
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var tmpl string
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flags := s.Meta.FlagSet(s.Name(), FlagSetClient)
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flags.Usage = func() { s.Ui.Output(s.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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if args = flags.Args(); len(args) != 1 {
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s.Ui.Error("This command takes one argument: <policy_id>")
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s.Ui.Error(commandErrorText(s))
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return 1
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}
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// Get the policy ID.
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policyID := args[0]
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// Get the HTTP client.
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client, err := s.Meta.Client()
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if err != nil {
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s.Ui.Error(fmt.Sprintf("Error initializing client: %s", err))
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return 1
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}
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policy, _, err := client.Scaling().GetPolicy(policyID, nil)
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if err != nil {
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s.Ui.Error(fmt.Sprintf("Error listing scaling policies: %s", err))
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return 1
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}
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// If the user has specified to output the policy as JSON or using a
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// template then perform this action for the entire object and exit the
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// command.
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if json || len(tmpl) > 0 {
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out, err := Format(json, tmpl, policy)
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if err != nil {
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s.Ui.Error(err.Error())
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return 1
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}
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s.Ui.Output(out)
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return 0
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}
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// Format the policy document which is a freeform map[string]interface{}
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// and therefore can only be made pretty to a certain extent. Do this
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// before the rest of the formatting so any errors are clearly passed back
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// to the CLI.
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out, err := Format(true, "", policy.Policy)
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if err != nil {
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s.Ui.Error(err.Error())
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return 1
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}
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info := []string{
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fmt.Sprintf("ID|%s", policy.ID),
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fmt.Sprintf("Enabled|%v", *policy.Enabled),
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fmt.Sprintf("Target|%s", formatScalingPolicyTarget(policy.Target)),
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fmt.Sprintf("Min|%v", *policy.Min),
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fmt.Sprintf("Max|%v", *policy.Max),
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}
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s.Ui.Output(formatKV(info))
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s.Ui.Output("\nPolicy:")
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s.Ui.Output(out)
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return 0
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}
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