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main.go
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main.go
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package main
import (
"net/http"
"os"
"strconv"
"strings"
log "github.com/Sirupsen/logrus"
)
// DestructionLevel of type (0 .. 2)
type DestructionLevel int
const (
// VERSION of DRAX
VERSION string = "0.4.0"
// DEFAULTPORT is the port DRAX is listening on
DEFAULTPORT string = "7777"
// MARATHONURL for connection to DC/OS
MARATHONURL string = "http://marathon.mesos:8080"
// DEFAULTNUMTARGET is the number of tasks to kill
DEFAULTNUMTARGET int = 2
// DEFAULTSLEEPTIME is the time in ms to wait between the killing of tasks
DEFAULTSLEEPTIME int = 100
)
const (
// DLBASIC means destroy random tasks
DLBASIC DestructionLevel = iota
// DLADVANCED means destroy random apps
DLADVANCED
// DLALL means destroy random apps and services
DLALL
)
var (
port string
marathonURL string
destructionLevel = DestructionLevel(DLBASIC)
numTargets = int(DEFAULTNUMTARGET)
sleepTime = int(DEFAULTSLEEPTIME)
overallTasksKilled uint64
)
func init() {
if ll := os.Getenv("LOG_LEVEL"); ll != "" {
switch strings.ToUpper(ll) {
case "DEBUG":
log.SetLevel(log.DebugLevel)
case "INFO":
log.SetLevel(log.InfoLevel)
default:
log.SetLevel(log.ErrorLevel)
}
}
log.WithFields(log.Fields{"main": "init"}).Info("This is DRAX in version ", VERSION)
// set port for http server
if port = os.Getenv("PORT"); len(port) == 0 {
port = DEFAULTPORT
}
log.WithFields(log.Fields{"main": "init"}).Info("Listening on port ", port)
// set destruction level
if dl := os.Getenv("DESTRUCTION_LEVEL"); dl != "" {
l, _ := strconv.Atoi(dl)
destructionLevel = DestructionLevel(l)
}
log.WithFields(log.Fields{"main": "init"}).Info("On destruction level ", destructionLevel)
// per default, use the cluster-internal, non-auth endpoint:
if marathonURL = os.Getenv("MARATHON_URL"); marathonURL == "" {
marathonURL = MARATHONURL
}
log.WithFields(log.Fields{"main": "init"}).Info("Using Marathon at ", marathonURL)
if nt := os.Getenv("NUM_TARGETS"); nt != "" {
n, _ := strconv.Atoi(nt)
numTargets = n
}
log.WithFields(log.Fields{"main": "init"}).Info("I will destroy ", numTargets, " tasks on a rampage")
if st := os.Getenv("SLEEP_TIME"); st != "" {
s, _ := strconv.Atoi(st)
sleepTime = s
}
log.WithFields(log.Fields{"main": "init"}).Info("I will wait ", sleepTime, "ms between the killing of tasks")
}
func main() {
http.HandleFunc("/health", getHealth)
http.HandleFunc("/stats", getStats)
http.HandleFunc("/rampage", postRampage)
err := http.ListenAndServe(":"+port, nil)
if err != nil {
log.Fatal(err)
panic(err)
}
}