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usagereport.go
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usagereport.go
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package main
import (
"fmt"
"os"
"sort"
"strconv"
"github.com/cloudfoundry/cli/plugin"
"github.com/cloudfoundry/cli/cf/formatters"
"github.com/lemaral/Wildcard_Plugin/table"
"github.com/lemaral/usagereport-plugin/apihelper"
)
//UsageReportCmd the plugin
type UsageReportCmd struct {
apiHelper apihelper.CFAPIHelper
cli plugin.CliConnection
}
type org struct {
name string
memoryQuota int
memoryUsage int
spaces []space
}
type space struct {
apps []app
name string
}
type app struct {
ram int
instances int
running bool
}
//GetMetadata returns metatada
func (cmd *UsageReportCmd) GetMetadata() plugin.PluginMetadata {
return plugin.PluginMetadata{
Name: "usage-report",
Version: plugin.VersionType{
Major: 1,
Minor: 1,
Build: 0,
},
Commands: []plugin.Command{
{
Name: "usage-report",
HelpText: "Report AI and memory usage for orgs and spaces",
UsageDetails: plugin.Usage{
Usage: "cf usage-report",
},
},
},
}
}
type SpaceByName []space
func (a SpaceByName) Len() int { return len(a) }
func (a SpaceByName) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
func (a SpaceByName) Less(i, j int) bool { return a[i].name < a[j].name }
//UsageReportCommand doer
func (cmd *UsageReportCmd) UsageReportCommand(args []string) {
tableHeader := []string{("name"), ("apps"), ("instances"), ("memory"), ("mem%quota")}
if nil == cmd.cli {
fmt.Println("ERROR: CLI Connection is nil!")
os.Exit(1)
}
orgs, err := cmd.getOrgs()
if nil != err {
fmt.Println(err)
os.Exit(1)
}
fmt.Println("Gathering usage information for", len(orgs), "orgs")
totalSpaces := 0
for _, org := range orgs {
totalApps := 0
totalRunningApps := 0
totalInstances := 0
totalRunningInstances := 0
var totalMemory int64 = 0
spaces := org.spaces
sort.Sort(SpaceByName(spaces))
var memoryUsage int64 = int64(org.memoryUsage)
var memoryQuota int64 = int64(org.memoryQuota)
memoryUsageString := formatters.ByteSize(memoryUsage * formatters.MEGABYTE)
memoryQuotaString := formatters.ByteSize(memoryQuota * formatters.MEGABYTE)
var quotaPercentOrg float64 = float64(100.0 * memoryUsage / memoryQuota)
percentOrgString := fmt.Sprintf("%02.2f%%", quotaPercentOrg);
fmt.Printf("Org %s is consuming %s of %s (%s) in %d spaces.\n", org.name, memoryUsageString, memoryQuotaString, percentOrgString, len(spaces))
mytable := table.NewTable(tableHeader)
for _, space := range spaces {
var memory int64 = 0
instances := 0
runningApps := 0
runningInstances := 0
for _, app := range space.apps {
if app.running {
memory += int64(app.instances * app.ram)
runningApps++
runningInstances += app.instances
}
instances += int(app.instances)
}
appsString := strconv.Itoa(runningApps) + "/" + strconv.Itoa(len(space.apps))
instancesString := strconv.Itoa(runningInstances) + "/" + strconv.Itoa(instances)
memoryString := formatters.ByteSize(memory * formatters.MEGABYTE)
var quotaPercent float64 = float64(100.0 * memory / int64(org.memoryQuota))
percentString := fmt.Sprintf("%02.2f%%", quotaPercent);
mytable.Add(space.name, appsString, instancesString, memoryString, percentString)
totalApps += len(space.apps)
totalRunningApps += runningApps
totalInstances += instances
totalRunningInstances += runningInstances
totalMemory += memory
}
appsString := strconv.Itoa(totalRunningApps) + "/" + strconv.Itoa(totalApps)
instancesString := strconv.Itoa(totalRunningInstances) + "/" + strconv.Itoa(totalInstances)
memoryString := formatters.ByteSize(totalMemory * formatters.MEGABYTE)
var quotaPercent float64 = float64(100 * totalMemory / int64(org.memoryQuota))
percentString := fmt.Sprintf("%02.2f%%", quotaPercent);
mytable.Add("Total", appsString, instancesString, memoryString, percentString)
mytable.Print()
totalSpaces += len(spaces)
}
fmt.Printf("Total orgs:%d, Total spaces: %d\n", len(orgs), totalSpaces)
}
func (cmd *UsageReportCmd) getOrgs() ([]org, error) {
rawOrgs, err := cmd.apiHelper.GetOrgs(cmd.cli)
if nil != err {
return nil, err
}
var orgs = []org{}
for _, o := range rawOrgs {
usage, err := cmd.apiHelper.GetOrgMemoryUsage(cmd.cli, o)
if nil != err {
return nil, err
}
quota, err := cmd.apiHelper.GetQuotaMemoryLimit(cmd.cli, o.QuotaURL)
if nil != err {
return nil, err
}
spaces, err := cmd.getSpaces(o.SpacesURL)
if nil != err {
return nil, err
}
orgs = append(orgs, org{
name: o.Name,
memoryQuota: int(quota),
memoryUsage: int(usage),
spaces: spaces,
})
}
return orgs, nil
}
func (cmd *UsageReportCmd) getSpaces(spaceURL string) ([]space, error) {
rawSpaces, err := cmd.apiHelper.GetOrgSpaces(cmd.cli, spaceURL)
if nil != err {
return nil, err
}
var spaces = []space{}
for _, s := range rawSpaces {
apps, err := cmd.getApps(s.AppsURL)
if nil != err {
return nil, err
}
spaces = append(spaces,
space{
apps: apps,
name: s.Name,
},
)
}
return spaces, nil
}
func (cmd *UsageReportCmd) getApps(appsURL string) ([]app, error) {
rawApps, err := cmd.apiHelper.GetSpaceApps(cmd.cli, appsURL)
if nil != err {
return nil, err
}
var apps = []app{}
for _, a := range rawApps {
apps = append(apps, app{
instances: int(a.Instances),
ram: int(a.RAM),
running: a.Running,
})
}
return apps, nil
}
//Run runs the plugin
func (cmd *UsageReportCmd) Run(cli plugin.CliConnection, args []string) {
if args[0] == "usage-report" {
cmd.apiHelper = &apihelper.APIHelper{}
cmd.cli = cli
cmd.UsageReportCommand(args)
}
}
func main() {
plugin.Start(new(UsageReportCmd))
}