_, ipNet, err := net.ParseCIDR("1.2.0.0/20")
Expect(err).ToNot(HaveOccurred())
fakeUIDPool = fake_uid_pool.New(10000)
fakeNetworkPool = fake_network_pool.New(ipNet)
fakeRunner = fake_command_runner.New()
fakeQuotaManager = fake_quota_manager.New()
fakePortPool = fake_port_pool.New(1000)
pool = container_pool.New(
"/root/path",
"/depot/path",
"/rootfs/path",
fakeUIDPool,
fakeNetworkPool,
fakePortPool,
[]string{"1.1.0.0/16", "2.2.0.0/16"},
[]string{"1.1.1.1/32", "2.2.2.2/32"},
fakeRunner,
fakeQuotaManager,
)
})
Describe("MaxContainer", func() {
Context("when constrained by network pool size", func() {
BeforeEach(func() {
fakeNetworkPool.InitialPoolSize = 5
fakeUIDPool.InitialPoolSize = 3000
})
It("returns the network pool size", func() {
func main() {
flag.Parse()
maxProcs := runtime.NumCPU()
prevMaxProcs := runtime.GOMAXPROCS(maxProcs)
log.Println("set GOMAXPROCS to", maxProcs, "was", prevMaxProcs)
if *binPath == "" {
log.Fatalln("must specify -bin with linux backend")
}
if *depotPath == "" {
log.Fatalln("must specify -depot with linux backend")
}
if *rootFSPath == "" {
log.Fatalln("must specify -rootfs with linux backend")
}
uidPool := uid_pool.New(uint32(*uidPoolStart), uint32(*uidPoolSize))
_, ipNet, err := net.ParseCIDR(*networkPool)
if err != nil {
log.Fatalln("error parsing CIDR:", err)
}
networkPool := network_pool.New(ipNet)
// TODO: use /proc/sys/net/ipv4/ip_local_port_range by default (end + 1)
portPool := port_pool.New(uint32(*portPoolStart), uint32(*portPoolSize))
runner := linux_command_runner.New(*debug)
quotaManager, err := quota_manager.New(*depotPath, *binPath, runner)
if err != nil {
log.Fatalln("error creating quota manager:", err)
}
if *disableQuotas {
quotaManager.Disable()
}
pool := container_pool.New(
*binPath,
*depotPath,
*rootFSPath,
uidPool,
networkPool,
portPool,
strings.Split(*denyNetworks, ","),
strings.Split(*allowNetworks, ","),
runner,
quotaManager,
)
systemInfo := system_info.NewProvider(*depotPath)
backend := linux_backend.New(pool, systemInfo, *snapshotsPath)
log.Println("setting up backend")
err = backend.Setup()
if err != nil {
log.Fatalln("failed to set up backend:", err)
}
log.Println("starting server; listening with", *listenNetwork, "on", *listenAddr)
graceTime := *containerGraceTime
wardenServer := server.New(*listenNetwork, *listenAddr, graceTime, backend)
err = wardenServer.Start()
if err != nil {
log.Fatalln("failed to start:", err)
}
signals := make(chan os.Signal, 1)
go func() {
<-signals
log.Println("stopping...")
wardenServer.Stop()
os.Exit(0)
}()
signal.Notify(signals, syscall.SIGINT, syscall.SIGTERM, syscall.SIGHUP)
select {}
}