/
main.go
114 lines (97 loc) · 2.72 KB
/
main.go
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package main
import (
"io"
"log"
"net/http"
"time"
"code.cloudfoundry.org/tlsconfig"
"code.cloudfoundry.org/loggregator-release/src/metricemitter"
"code.cloudfoundry.org/loggregator-release/src/plumbing"
"google.golang.org/grpc"
"google.golang.org/grpc/grpclog"
"code.cloudfoundry.org/loggregator-release/src/trafficcontroller/app"
)
func main() {
l := grpclog.NewLoggerV2(io.Discard, io.Discard, io.Discard)
grpclog.SetLoggerV2(l)
conf, err := app.LoadConfig()
if err != nil {
log.Panicf("Unable to load config: %s", err)
}
if conf.UseRFC339 {
log.SetOutput(new(plumbing.LogWriter))
log.SetFlags(0)
} else {
log.SetFlags(log.LstdFlags | log.Lmicroseconds)
}
credentials, err := plumbing.NewClientCredentials(
conf.GRPC.CertFile,
conf.GRPC.KeyFile,
conf.GRPC.CAFile,
"metron",
)
if err != nil {
log.Fatalf("Could not use GRPC creds for client: %s", err)
}
// metric-documentation-v2: setup function
metricClient, err := metricemitter.NewClient(
conf.Agent.GRPCAddress,
metricemitter.WithGRPCDialOptions(grpc.WithTransportCredentials(credentials)),
metricemitter.WithOrigin("loggregator.trafficcontroller"),
metricemitter.WithPulseInterval(conf.MetricEmitterInterval),
metricemitter.WithSourceID("traffic_controller"),
)
if err != nil {
log.Fatalf("Couldn't connect to metric emitter: %s", err)
}
tc := app.NewTrafficController(
conf,
conf.DisableAccessControl,
metricClient,
uaaHTTPClient(conf),
ccHTTPClient(conf),
)
tc.Start()
}
func uaaHTTPClient(conf *app.Config) *http.Client {
tlsConfig, err := tlsconfig.Build(
tlsconfig.WithInternalServiceDefaults(),
).Client(
tlsconfig.WithAuthorityFromFile(conf.UaaCACert),
)
if err != nil {
log.Fatalf("Unable to create UAA HTTP Client: %s", err)
}
tlsConfig.InsecureSkipVerify = conf.SkipCertVerify
transport := &http.Transport{
TLSHandshakeTimeout: 10 * time.Second,
TLSClientConfig: tlsConfig,
DisableKeepAlives: true,
}
return &http.Client{
Timeout: 20 * time.Second,
Transport: transport,
}
}
func ccHTTPClient(conf *app.Config) *http.Client {
tlsConfig, err := tlsconfig.Build(
tlsconfig.WithInternalServiceDefaults(),
tlsconfig.WithIdentityFromFile(conf.CCTLSClientConfig.CertFile, conf.CCTLSClientConfig.KeyFile),
).Client(
tlsconfig.WithAuthorityFromFile(conf.CCTLSClientConfig.CAFile),
tlsconfig.WithServerName(conf.CCTLSClientConfig.ServerName),
)
if err != nil {
log.Fatalf("Unable to create CC HTTP Client: %s", err)
}
tlsConfig.InsecureSkipVerify = conf.SkipCertVerify
transport := &http.Transport{
TLSHandshakeTimeout: 10 * time.Second,
TLSClientConfig: tlsConfig,
DisableKeepAlives: true,
}
return &http.Client{
Timeout: 20 * time.Second,
Transport: transport,
}
}