func main() {
rootConfig, err := config.NewConfig(os.Args)
logger := rootConfig.Logger
err = rootConfig.Validate()
if err != nil {
logger.Fatal("Error validating config:", err, lager.Data{"config": rootConfig})
}
go func() {
logger.Info(fmt.Sprintf("Starting profiling server on port %d", rootConfig.ProfilerPort))
err := http.ListenAndServe(fmt.Sprintf("0.0.0.0:%d", rootConfig.ProfilerPort), nil)
if err != nil {
logger.Error("profiler failed with error", err)
}
}()
if _, err := os.Stat(rootConfig.StaticDir); os.IsNotExist(err) {
logger.Fatal(fmt.Sprintf("staticDir: %s does not exist", rootConfig.StaticDir), nil)
}
backends := domain.NewBackends(rootConfig.Proxy.Backends, logger)
arpManager := domain.NewArmManager(logger)
cluster := domain.NewCluster(
backends,
rootConfig.Proxy.HealthcheckTimeout(),
logger,
arpManager,
)
handler := api.NewHandler(backends, logger, rootConfig.API, rootConfig.StaticDir)
members := grouper.Members{
{
Name: "proxy",
Runner: proxy.NewRunner(cluster, rootConfig.Proxy.Port, logger),
},
{
Name: "api",
Runner: api.NewRunner(rootConfig.API.Port, handler, logger),
},
}
if rootConfig.HealthPort != rootConfig.API.Port {
members = append(members, grouper.Member{
Name: "health",
Runner: health.NewRunner(rootConfig.HealthPort, logger),
})
}
group := grouper.NewDynamic(os.Kill, len(members), len(members))
process := ifrit.Invoke(group)
inserter := group.Client().Inserter()
for _, member := range members {
inserter <- member
}
group.Client().Close()
err = waitUntilReady(process, logger)
if err != nil {
logger.Fatal("Error starting switchboard", err, lager.Data{"proxyConfig": rootConfig.Proxy})
}
logger.Info("Proxy started", lager.Data{"proxyConfig": rootConfig.Proxy})
err = ioutil.WriteFile(rootConfig.PidFile, []byte(strconv.Itoa(os.Getpid())), 0644)
if err == nil {
logger.Info(fmt.Sprintf("Wrote pidFile to %s", rootConfig.PidFile))
} else {
logger.Fatal("Cannot write pid to file", err, lager.Data{"pidFile": rootConfig.PidFile})
}
err = <-process.Wait()
if err != nil {
logger.Fatal("Switchboard exited unexpectedly", err, lager.Data{"proxyConfig": rootConfig.Proxy})
}
}
package proxy_test
import (
"fmt"
"net"
"os"
"github.com/cloudfoundry-incubator/switchboard/domain/fakes"
"github.com/cloudfoundry-incubator/switchboard/proxy"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"github.com/pivotal-golang/lager/lagertest"
"github.com/tedsuo/ifrit"
)
var _ = Describe("ProxyRunner", func() {
It("shuts down gracefully when signalled", func() {
cluster := &fakes.FakeCluster{}
proxyPort := 10000 + GinkgoParallelNode()
logger := lagertest.NewTestLogger("ProxyRunner test")
proxyRunner := proxy.NewRunner(cluster, uint(proxyPort), logger)
proxyProcess := ifrit.Invoke(proxyRunner)
proxyProcess.Signal(os.Kill)
Eventually(proxyProcess.Wait()).Should(Receive())
_, err := net.Dial("tcp", fmt.Sprintf("127.0.0.1:%d", proxyPort))
Expect(err).To(HaveOccurred())
})
})