mirror of https://github.com/status-im/consul.git
155 lines
3.6 KiB
Go
155 lines
3.6 KiB
Go
// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: BUSL-1.1
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package exportedservices
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import (
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"context"
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"encoding/json"
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"flag"
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"fmt"
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"strings"
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"github.com/mitchellh/cli"
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"github.com/ryanuber/columnize"
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"github.com/hashicorp/consul/agent/structs"
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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/peering"
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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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name string
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format 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.flags.StringVar(&c.name, "name", "", "(Required) The local name assigned to the peer cluster.")
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c.flags.StringVar(
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&c.format,
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"format",
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peering.PeeringFormatPretty,
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fmt.Sprintf("Output format {%s} (default: %s)", strings.Join(peering.GetSupportedFormats(), "|"), peering.PeeringFormatPretty),
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)
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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.PartitionFlag())
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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 c.name == "" {
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c.UI.Error("Missing the required -name flag")
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return 1
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}
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if !peering.FormatIsValid(c.format) {
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c.UI.Error(fmt.Sprintf("Invalid format, valid formats are {%s}", strings.Join(peering.GetSupportedFormats(), "|")))
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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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peerings := client.Peerings()
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res, _, err := peerings.Read(context.Background(), c.name, &api.QueryOptions{})
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if err != nil {
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c.UI.Error(fmt.Sprintf("Error reading peering: %s", err))
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return 1
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}
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if res == nil {
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c.UI.Error(fmt.Sprintf("No peering with name %s found.", c.name))
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return 1
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}
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// Convert service to serviceID
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services := make([]structs.ServiceID, 0, len(res.StreamStatus.ExportedServices))
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for _, svc := range res.StreamStatus.ExportedServices {
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services = append(services, structs.ServiceIDFromString(svc))
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}
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if c.format == peering.PeeringFormatJSON {
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output, err := json.Marshal(services)
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if err != nil {
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c.UI.Error(fmt.Sprintf("Error marshalling JSON: %s", err))
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return 1
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}
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c.UI.Output(string(output))
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return 0
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}
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c.UI.Output(formatExportedServices(services))
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return 0
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}
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func formatExportedServices(services []structs.ServiceID) string {
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if len(services) == 0 {
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return ""
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}
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result := make([]string, 0, len(services)+1)
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if services[0].EnterpriseMeta.ToEnterprisePolicyMeta() != nil {
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result = append(result, "Partition\x1fNamespace\x1fService Name")
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}
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for _, svc := range services {
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if svc.EnterpriseMeta.ToEnterprisePolicyMeta() == nil {
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result = append(result, svc.ID)
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} else {
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result = append(result, fmt.Sprintf("%s\x1f%s\x1f%s", svc.EnterpriseMeta.PartitionOrDefault(), svc.EnterpriseMeta.NamespaceOrDefault(), svc.ID))
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}
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}
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return columnize.Format(result, &columnize.Config{Delim: string([]byte{0x1f})})
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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(c.help, nil)
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}
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const (
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synopsis = "Lists exported services to a peer"
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help = `
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Usage: consul peering exported-services [options] -name <peer name>
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Lists services exported to the peer with the provided name. If the peer is not found,
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the command exits with a non-zero code. The result is filtered according
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to ACL policy configuration.
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Example:
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$ consul peering exported-services -name west-dc
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`
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)
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