mirror of https://github.com/hashicorp/consul
171 lines
4.5 KiB
Go
171 lines
4.5 KiB
Go
// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: MPL-2.0
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package read
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import (
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"bytes"
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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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"time"
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"github.com/mitchellh/cli"
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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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if c.format == peering.PeeringFormatJSON {
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output, err := json.Marshal(res)
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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(formatPeering(res))
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return 0
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}
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func formatPeering(peering *api.Peering) string {
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var buffer bytes.Buffer
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buffer.WriteString(fmt.Sprintf("Name: %s\n", peering.Name))
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buffer.WriteString(fmt.Sprintf("ID: %s\n", peering.ID))
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if peering.Partition != "" {
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buffer.WriteString(fmt.Sprintf("Partition: %s\n", peering.Partition))
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}
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if peering.DeletedAt != nil {
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buffer.WriteString(fmt.Sprintf("DeletedAt: %s\n", peering.DeletedAt.Format(time.RFC3339)))
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}
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buffer.WriteString(fmt.Sprintf("State: %s\n", peering.State))
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if peering.Meta != nil && len(peering.Meta) > 0 {
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buffer.WriteString("Meta:\n")
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for k, v := range peering.Meta {
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buffer.WriteString(fmt.Sprintf(" %s=%s\n", k, v))
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}
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}
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buffer.WriteString("\n")
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buffer.WriteString(fmt.Sprintf("Peer ID: %s\n", peering.PeerID))
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buffer.WriteString(fmt.Sprintf("Peer Server Name: %s\n", peering.PeerServerName))
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buffer.WriteString(fmt.Sprintf("Peer CA Pems: %d\n", len(peering.PeerCAPems)))
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if peering.PeerServerAddresses != nil && len(peering.PeerServerAddresses) > 0 {
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buffer.WriteString("Peer Server Addresses:\n")
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for _, v := range peering.PeerServerAddresses {
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buffer.WriteString(fmt.Sprintf(" %s", v))
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}
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}
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buffer.WriteString("\n")
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buffer.WriteString(fmt.Sprintf("Imported Services: %d\n", len(peering.StreamStatus.ImportedServices)))
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buffer.WriteString(fmt.Sprintf("Exported Services: %d\n", len(peering.StreamStatus.ExportedServices)))
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buffer.WriteString("\n")
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buffer.WriteString(fmt.Sprintf("Last Heartbeat: %v\n", peering.StreamStatus.LastHeartbeat))
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buffer.WriteString(fmt.Sprintf("Last Send: %v\n", peering.StreamStatus.LastSend))
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buffer.WriteString(fmt.Sprintf("Last Receive: %v\n", peering.StreamStatus.LastReceive))
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buffer.WriteString("\n")
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buffer.WriteString(fmt.Sprintf("Create Index: %d\n", peering.CreateIndex))
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buffer.WriteString(fmt.Sprintf("Modify Index: %d\n", peering.ModifyIndex))
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return buffer.String()
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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 = "Read a peering connection"
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help = `
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Usage: consul peering read [options] -name <peer name>
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Read a peering connection with the provided name. If one is not found,
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the command will exit with a non-zero code. The result will be filtered according
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to ACL policy configuration.
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Example:
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$ consul peering read -name west-dc
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`
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)
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