111 lines
2.3 KiB
Go
111 lines
2.3 KiB
Go
package exp
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import (
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"encoding/json"
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"flag"
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"fmt"
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"github.com/hashicorp/consul/api"
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"github.com/hashicorp/consul/command/flags"
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"github.com/hashicorp/consul/command/kv/impexp"
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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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}
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func (c *cmd) init() {
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c.flags = flag.NewFlagSet("", flag.ContinueOnError)
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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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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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key := ""
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// Check for arg validation
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args = c.flags.Args()
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switch len(args) {
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case 0:
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key = ""
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case 1:
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key = args[0]
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default:
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c.UI.Error(fmt.Sprintf("Too many arguments (expected 1, got %d)", len(args)))
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return 1
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}
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// This is just a "nice" thing to do. Since pairs cannot start with a /, but
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// users will likely put "/" or "/foo", lets go ahead and strip that for them
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// here.
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if len(key) > 0 && key[0] == '/' {
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key = key[1:]
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}
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// Create and test the HTTP client
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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 connecting to Consul agent: %s", err))
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return 1
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}
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pairs, _, err := client.KV().List(key, &api.QueryOptions{
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AllowStale: c.http.Stale(),
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})
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if err != nil {
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c.UI.Error(fmt.Sprintf("Error querying Consul agent: %s", err))
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return 1
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}
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exported := make([]*impexp.Entry, len(pairs))
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for i, pair := range pairs {
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exported[i] = impexp.ToEntry(pair)
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}
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marshaled, err := json.MarshalIndent(exported, "", "\t")
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if err != nil {
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c.UI.Error(fmt.Sprintf("Error exporting KV data: %s", err))
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return 1
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}
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c.UI.Info(string(marshaled))
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return 0
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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 c.help
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}
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const synopsis = "Exports a tree from the KV store as JSON"
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const help = `
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Usage: consul kv export [KEY_OR_PREFIX]
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Retrieves key-value pairs for the given prefix from Consul's key-value store,
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and writes a JSON representation to stdout. This can be used with the command
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"consul kv import" to move entire trees between Consul clusters.
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$ consul kv export vault
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For a full list of options and examples, please see the Consul documentation.
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`
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