127 lines
2.8 KiB
Go
127 lines
2.8 KiB
Go
package delete
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import (
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"errors"
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"flag"
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"fmt"
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"github.com/hashicorp/consul/command/flags"
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"github.com/mitchellh/cli"
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)
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func New(ui cli.Ui) *cmd {
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c := &cmd{UI: ui}
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c.init()
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return c
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}
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type cmd struct {
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UI cli.Ui
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flags *flag.FlagSet
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http *flags.HTTPFlags
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help string
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kind string
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name string
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cas bool
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modifyIndex uint64
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}
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func (c *cmd) init() {
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c.flags = flag.NewFlagSet("", flag.ContinueOnError)
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c.flags.StringVar(&c.kind, "kind", "", "The kind of configuration to delete.")
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c.flags.StringVar(&c.name, "name", "", "The name of configuration to delete.")
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c.flags.BoolVar(&c.cas, "cas", false,
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"Perform a Check-And-Set operation. Specifying this value also "+
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"requires the -modify-index flag to be set. The default value "+
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"is false.")
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c.flags.Uint64Var(&c.modifyIndex, "modify-index", 0,
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"Unsigned integer representing the ModifyIndex of the config entry. "+
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"This is used in combination with the -cas flag.")
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c.http = &flags.HTTPFlags{}
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flags.Merge(c.flags, c.http.ClientFlags())
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flags.Merge(c.flags, c.http.ServerFlags())
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flags.Merge(c.flags, c.http.MultiTenancyFlags())
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c.help = flags.Usage(help, c.flags)
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}
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func (c *cmd) Run(args []string) int {
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if err := c.flags.Parse(args); err != nil {
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return 1
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}
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if err := c.validateArgs(); 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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client, err := c.http.APIClient()
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if err != nil {
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c.UI.Error(fmt.Sprintf("Error connect to Consul agent: %s", err))
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return 1
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}
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entries := client.ConfigEntries()
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var deleted bool
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if c.cas {
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deleted, _, err = entries.DeleteCAS(c.kind, c.name, c.modifyIndex, nil)
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} else {
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_, err = entries.Delete(c.kind, c.name, nil)
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deleted = err == nil
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}
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if err != nil {
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c.UI.Error(fmt.Sprintf("Error deleting config entry %s/%s: %v", c.kind, c.name, err))
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return 1
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}
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if !deleted {
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c.UI.Error(fmt.Sprintf("Config entry not deleted: %s/%s", c.kind, c.name))
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return 1
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}
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c.UI.Info(fmt.Sprintf("Config entry deleted: %s/%s", c.kind, c.name))
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return 0
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}
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func (c *cmd) validateArgs() error {
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if c.kind == "" {
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return errors.New("Must specify the -kind parameter")
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}
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if c.name == "" {
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return errors.New("Must specify the -name parameter")
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}
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if c.cas && c.modifyIndex == 0 {
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return errors.New("Must specify a -modify-index greater than 0 with -cas")
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}
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if c.modifyIndex != 0 && !c.cas {
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return errors.New("Cannot specify -modify-index without -cas")
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}
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return nil
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}
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func (c *cmd) Synopsis() string {
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return synopsis
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}
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func (c *cmd) Help() string {
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return flags.Usage(help, nil)
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}
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const (
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synopsis = "Delete a centralized config entry"
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help = `
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Usage: consul config delete [options] -kind <config kind> -name <config name>
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Deletes the configuration entry specified by the kind and name.
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Example:
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$ consul config delete -kind service-defaults -name web
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`
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)
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