mirror of https://github.com/status-im/consul.git
288 lines
6.9 KiB
Go
288 lines
6.9 KiB
Go
// Copyright (c) HashiCorp, Inc.
|
|
// SPDX-License-Identifier: MPL-2.0
|
|
|
|
package instances
|
|
|
|
import (
|
|
"bytes"
|
|
"flag"
|
|
"fmt"
|
|
"sort"
|
|
"strings"
|
|
"text/tabwriter"
|
|
|
|
"github.com/hashicorp/consul/api"
|
|
"github.com/hashicorp/consul/command/flags"
|
|
"github.com/mitchellh/cli"
|
|
)
|
|
|
|
func New(ui cli.Ui) *cmd {
|
|
c := &cmd{UI: ui}
|
|
c.init()
|
|
return c
|
|
}
|
|
|
|
type cmd struct {
|
|
UI cli.Ui
|
|
flags *flag.FlagSet
|
|
http *flags.HTTPFlags
|
|
help string
|
|
|
|
// flags
|
|
onlyBillable bool
|
|
onlyConnect bool
|
|
allDatacenters bool
|
|
}
|
|
|
|
func (c *cmd) init() {
|
|
c.flags = flag.NewFlagSet("", flag.ContinueOnError)
|
|
c.flags.BoolVar(&c.onlyBillable, "billable", false, "Display only billable service info. "+
|
|
"Cannot be used with -connect.")
|
|
c.flags.BoolVar(&c.onlyConnect, "connect", false, "Display only Connect service info."+
|
|
"Cannot be used with -billable.")
|
|
c.flags.BoolVar(&c.allDatacenters, "all-datacenters", false, "Display service counts from "+
|
|
"all datacenters.")
|
|
|
|
c.http = &flags.HTTPFlags{}
|
|
flags.Merge(c.flags, c.http.ClientFlags())
|
|
flags.Merge(c.flags, c.http.ServerFlags())
|
|
c.help = flags.Usage(help, c.flags)
|
|
}
|
|
|
|
func (c *cmd) Run(args []string) int {
|
|
if err := c.flags.Parse(args); err != nil {
|
|
return 1
|
|
}
|
|
|
|
if l := len(c.flags.Args()); l > 0 {
|
|
c.UI.Error(fmt.Sprintf("Too many arguments (expected 0, got %d)", l))
|
|
return 1
|
|
}
|
|
|
|
if c.onlyBillable && c.onlyConnect {
|
|
c.UI.Error("Cannot specify both -billable and -connect flags")
|
|
return 1
|
|
}
|
|
|
|
// Create and test the HTTP client
|
|
client, err := c.http.APIClient()
|
|
if err != nil {
|
|
c.UI.Error(fmt.Sprintf("Error connecting to Consul agent: %s", err))
|
|
return 1
|
|
}
|
|
|
|
billableTotal := 0
|
|
var datacenterBillableTotals []string
|
|
usage, _, err := client.Operator().Usage(&api.QueryOptions{Global: c.allDatacenters})
|
|
if err != nil {
|
|
c.UI.Error(fmt.Sprintf("Error fetching usage information: %s", err))
|
|
return 1
|
|
}
|
|
for dc, usage := range usage.Usage {
|
|
billableTotal += usage.BillableServiceInstances
|
|
datacenterBillableTotals = append(datacenterBillableTotals,
|
|
fmt.Sprintf("%s Billable Service Instances: %d", dc, usage.BillableServiceInstances))
|
|
}
|
|
|
|
// Output billable service counts
|
|
if !c.onlyConnect {
|
|
c.UI.Output(fmt.Sprintf("Billable Service Instances Total: %d", billableTotal))
|
|
sort.Strings(datacenterBillableTotals)
|
|
for _, datacenterTotal := range datacenterBillableTotals {
|
|
c.UI.Output(datacenterTotal)
|
|
}
|
|
|
|
c.UI.Output("\nBillable Services")
|
|
billableOutput, err := formatServiceCounts(usage.Usage, true, c.allDatacenters)
|
|
if err != nil {
|
|
c.UI.Error(err.Error())
|
|
return 1
|
|
}
|
|
c.UI.Output(billableOutput + "\n")
|
|
|
|
c.UI.Output("\nNodes")
|
|
nodesOutput, err := formatNodesCounts(usage.Usage)
|
|
if err != nil {
|
|
c.UI.Error(err.Error())
|
|
return 1
|
|
}
|
|
c.UI.Output(nodesOutput + "\n\n")
|
|
}
|
|
|
|
// Output Connect service counts
|
|
if !c.onlyBillable {
|
|
c.UI.Output("Connect Services")
|
|
connectOutput, err := formatServiceCounts(usage.Usage, false, c.allDatacenters)
|
|
if err != nil {
|
|
c.UI.Error(err.Error())
|
|
return 1
|
|
}
|
|
c.UI.Output(connectOutput)
|
|
}
|
|
|
|
return 0
|
|
}
|
|
|
|
func formatNodesCounts(usageStats map[string]api.ServiceUsage) (string, error) {
|
|
var output bytes.Buffer
|
|
tw := tabwriter.NewWriter(&output, 0, 2, 6, ' ', 0)
|
|
|
|
nodesTotal := 0
|
|
|
|
fmt.Fprintf(tw, "Datacenter\t")
|
|
|
|
fmt.Fprintf(tw, "Count\t")
|
|
|
|
fmt.Fprint(tw, "\t\n")
|
|
|
|
for dc, usage := range usageStats {
|
|
nodesTotal += usage.Nodes
|
|
fmt.Fprintf(tw, "%s\t%d\n", dc, usage.Nodes)
|
|
}
|
|
|
|
fmt.Fprint(tw, "\t\n")
|
|
fmt.Fprintf(tw, "Total")
|
|
|
|
fmt.Fprintf(tw, "\t%d", nodesTotal)
|
|
|
|
if err := tw.Flush(); err != nil {
|
|
return "", fmt.Errorf("Error flushing tabwriter: %s", err)
|
|
}
|
|
return strings.TrimSpace(output.String()), nil
|
|
}
|
|
|
|
func formatServiceCounts(usageStats map[string]api.ServiceUsage, billable, showDatacenter bool) (string, error) {
|
|
var output bytes.Buffer
|
|
tw := tabwriter.NewWriter(&output, 0, 2, 6, ' ', 0)
|
|
var serviceCounts []serviceCount
|
|
|
|
for datacenter, usage := range usageStats {
|
|
if billable {
|
|
serviceCounts = append(serviceCounts, getBillableInstanceCounts(usage, datacenter)...)
|
|
} else {
|
|
serviceCounts = append(serviceCounts, getConnectInstanceCounts(usage, datacenter)...)
|
|
}
|
|
}
|
|
|
|
sortServiceCounts(serviceCounts)
|
|
|
|
if showDatacenter {
|
|
fmt.Fprintf(tw, "Datacenter\t")
|
|
}
|
|
if showPartitionNamespace {
|
|
fmt.Fprintf(tw, "Partition\tNamespace\t")
|
|
}
|
|
if !billable {
|
|
fmt.Fprintf(tw, "Type\t")
|
|
} else {
|
|
fmt.Fprintf(tw, "Services\t")
|
|
}
|
|
fmt.Fprintf(tw, "Service instances\n")
|
|
|
|
serviceTotal := 0
|
|
instanceTotal := 0
|
|
for _, c := range serviceCounts {
|
|
if showDatacenter {
|
|
fmt.Fprintf(tw, "%s\t", c.datacenter)
|
|
}
|
|
if showPartitionNamespace {
|
|
fmt.Fprintf(tw, "%s\t%s\t", c.partition, c.namespace)
|
|
}
|
|
if !billable {
|
|
fmt.Fprintf(tw, "%s\t", c.serviceType)
|
|
} else {
|
|
fmt.Fprintf(tw, "%d\t", c.services)
|
|
}
|
|
fmt.Fprintf(tw, "%d\n", c.instanceCount)
|
|
|
|
serviceTotal += c.services
|
|
instanceTotal += c.instanceCount
|
|
}
|
|
|
|
// Show total counts if there's multiple rows because of datacenter or partition/ns view
|
|
if showDatacenter || showPartitionNamespace {
|
|
if showDatacenter {
|
|
fmt.Fprint(tw, "\t")
|
|
}
|
|
if showPartitionNamespace {
|
|
fmt.Fprint(tw, "\t\t")
|
|
}
|
|
fmt.Fprint(tw, "\t\n")
|
|
fmt.Fprintf(tw, "Total")
|
|
if showPartitionNamespace {
|
|
fmt.Fprint(tw, "\t")
|
|
if showDatacenter {
|
|
fmt.Fprint(tw, "\t")
|
|
}
|
|
}
|
|
|
|
if billable {
|
|
fmt.Fprintf(tw, "\t%d\t%d\n", serviceTotal, instanceTotal)
|
|
} else {
|
|
fmt.Fprintf(tw, "\t\t%d\n", instanceTotal)
|
|
}
|
|
}
|
|
|
|
if err := tw.Flush(); err != nil {
|
|
return "", fmt.Errorf("Error flushing tabwriter: %s", err)
|
|
}
|
|
return strings.TrimSpace(output.String()), nil
|
|
}
|
|
|
|
type serviceCount struct {
|
|
datacenter string
|
|
partition string
|
|
namespace string
|
|
serviceType string
|
|
instanceCount int
|
|
services int
|
|
}
|
|
|
|
// Sort entries by datacenter > partition > namespace
|
|
func sortServiceCounts(counts []serviceCount) {
|
|
sort.Slice(counts, func(i, j int) bool {
|
|
if counts[i].datacenter != counts[j].datacenter {
|
|
return counts[i].datacenter < counts[j].datacenter
|
|
}
|
|
if counts[i].partition != counts[j].partition {
|
|
return counts[i].partition < counts[j].partition
|
|
}
|
|
if counts[i].namespace != counts[j].namespace {
|
|
return counts[i].namespace < counts[j].namespace
|
|
}
|
|
return counts[i].serviceType < counts[j].serviceType
|
|
})
|
|
}
|
|
|
|
func (c *cmd) Synopsis() string {
|
|
return synopsis
|
|
}
|
|
|
|
func (c *cmd) Help() string {
|
|
return c.help
|
|
}
|
|
|
|
const (
|
|
synopsis = "Display service instance usage information"
|
|
help = `
|
|
Usage: consul operator usage instances [options]
|
|
|
|
Retrieves usage information about the number of services registered in a given
|
|
datacenter. By default, the datacenter of the local agent is queried.
|
|
|
|
To retrieve the service usage data:
|
|
|
|
$ consul operator usage instances
|
|
|
|
To show only billable service instance counts:
|
|
|
|
$ consul operator usage instances -billable
|
|
|
|
To show only connect service instance counts:
|
|
|
|
$ consul operator usage instances -connect
|
|
|
|
For a full list of options and examples, please see the Consul documentation.
|
|
`
|
|
)
|