103 lines
2.2 KiB
Go
103 lines
2.2 KiB
Go
package upstreams
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import (
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"flag"
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"fmt"
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"net"
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"os"
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"github.com/hashicorp/consul/command/flags"
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troubleshoot "github.com/hashicorp/consul/troubleshoot"
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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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// flags
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adminBind 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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defaultAdminBind := "localhost:19000"
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if adminBind := os.Getenv("ADMIN_BIND"); adminBind != "" {
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defaultAdminBind = adminBind
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}
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c.flags.StringVar(&c.adminBind, "admin-bind", defaultAdminBind, "The address:port that envoy's admin endpoint is on.")
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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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c.UI.Error(fmt.Sprintf("Failed to parse args: %v", err))
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return 1
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}
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adminAddr, adminPort, err := net.SplitHostPort(c.adminBind)
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if err != nil {
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c.UI.Error("Invalid Envoy Admin endpoint: " + err.Error())
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return 1
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}
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// Envoy requires IP addresses to bind too when using static so resolve DNS or
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// localhost here.
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adminBindIP, err := net.ResolveIPAddr("ip", adminAddr)
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if err != nil {
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c.UI.Error("Failed to resolve admin bind address: " + err.Error())
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return 1
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}
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t, err := troubleshoot.NewTroubleshoot(adminBindIP, adminPort)
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if err != nil {
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c.UI.Error("error generating troubleshoot client: " + err.Error())
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return 1
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}
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upstreams, err := t.GetUpstreams()
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if err != nil {
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c.UI.Error("error calling GetUpstreams: " + err.Error())
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return 1
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}
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for _, u := range upstreams {
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c.UI.Output(u)
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}
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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 (
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synopsis = "Get upstream envoy identifiers for the current envoy instance"
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help = `
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Usage: consul troubleshoot upstreams [options]
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Connects to local Envoy and lists upstream service envoy identifiers.
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This command is used in combination with
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'consul troubleshoot proxy' to diagnose issues in Consul service mesh.
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Examples:
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$ consul troubleshoot upstreams
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`
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)
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