/
main.go
64 lines (58 loc) · 2.4 KB
/
main.go
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package main
import (
"flag"
"fmt"
log "github.com/sirupsen/logrus"
"os"
)
func main() {
args = initializeArg()
ch := initializeK8SInformer()
resultChan := initKubernetesPODEventProcessor(ch)
initializePrometheusPusher(resultChan)
fmt.Println("Crystal Bridge has been started successfully!")
select {} //block current process.
}
var (
args *CommandLineArgs
)
func initializeArg() *CommandLineArgs {
arg := CommandLineArgs{}
flag.IntVar(&arg.LogLevel, "l", 2, "log level.")
flag.StringVar(&arg.RemotePrometheusPushGWAddr, "gw", "", "the accessabile address of remote prometheus push gateway.")
flag.StringVar(&arg.RemotePrometheusPushGWAddrHttpTimeout, "gwto", "30s", "timeout to push data to the remote Prometheus GW.")
flag.StringVar(&arg.AnnotationPrefixTag, "tag", "io.collectbeat.metrics", "a prefix value used for matching POD's annotations.")
flag.IntVar(&arg.PrometheusDataSyncBufferSize, "syncbuffer", 32, "length of buffered queue size for syncing data to the remote Prometheus push gateway")
flag.StringVar(&arg.Host, "host", "", "hostname, usually be set as current machine's IP address.")
flag.StringVar(&arg.FechingInterval, "fi", "1m", "fetching interval")
flag.StringVar(&arg.FechingTimeout, "ft", "3s", "fetching timeout")
flag.StringVar(&arg.LabeledNamespace, "lns", "3s", "labeled namespace on the POD's annotation.")
flag.StringVar(&arg.KubernetesAddress, "k8saddr", "", "remote Kubernetes URL. e.g. http://xxx.xxx.xxx.xxx:8080")
flag.StringVar(&arg.KubernetesBearerToken, "k8sbt", "", "Kubernetes bearer token")
flag.Parse()
fmt.Println("Initializing logger...")
if arg.Host == "" {
arg.Host = os.Getenv("HOST_IP")
//still not set.
if arg.Host == "" {
log.Fatal("Argument \"host\" CANNOT be null.")
}
}
fmt.Printf("Host: %s\n", arg.Host)
//minimum level to log.
log.SetLevel(log.Level(arg.LogLevel))
return &arg
}
type CommandLineArgs struct {
LogLevel int
RemotePrometheusPushGWAddr string
RemotePrometheusPushGWAddrHttpTimeout string
Host string //current machine's hostname (IP ADDRESS)
AnnotationPrefixTag string
FechingInterval string
FechingTimeout string
LabeledNamespace string
KubernetesAddress string
KubernetesBearerToken string
PrometheusDataSyncBufferSize int
}