func (cv CreateVeth) Execute(context executor.Context) error {
err := context.LinkFactory().CreateVeth(cv.Name, cv.PeerName, cv.MTU)
if err != nil {
return fmt.Errorf("create veth: %s", err)
}
return nil
}
func (cv CreateDummy) Execute(context executor.Context) error {
err := context.LinkFactory().CreateDummy(cv.Name)
if err != nil {
return fmt.Errorf("create dummy: %s", err)
}
return nil
}
func (cb CreateBridge) Execute(context executor.Context) error {
err := context.LinkFactory().CreateBridge(cb.Name)
if err != nil {
return fmt.Errorf("create bridge: %s", err)
}
return nil
}
func (c DeleteLink) Execute(context executor.Context) error {
err := context.LinkFactory().DeleteLinkByName(c.LinkName)
if err != nil {
return fmt.Errorf("delete link: %s", err)
}
return nil
}
func (slm SetLinkMaster) Execute(context executor.Context) error {
err := context.LinkFactory().SetMaster(slm.Slave, slm.Master)
if err != nil {
return fmt.Errorf("set link master: %s", err)
}
return nil
}
func (s SetLinkUp) Execute(context executor.Context) error {
err := context.LinkFactory().SetUp(s.LinkName)
if err != nil {
return fmt.Errorf("set link up: %s", err)
}
return nil
}
func (aa AddAddress) Execute(context executor.Context) error {
err := context.AddressManager().AddAddress(aa.InterfaceName, &aa.Address)
if err != nil {
return fmt.Errorf("add address: %s", err)
}
return nil
}
func (ad AddRoute) Execute(context executor.Context) error {
err := context.RouteManager().AddRoute(ad.Interface, &ad.Destination, ad.Gateway)
if err != nil {
return fmt.Errorf("add route: %s", err)
}
return nil
}
func (cv CreateVxlan) Execute(context executor.Context) error {
err := context.LinkFactory().CreateVxlan(cv.Name, cv.VNI)
if err != nil {
return fmt.Errorf("create vxlan: %s", err)
}
return nil
}
func (cmd *GetHardwareAddress) Execute(context executor.Context) error {
hwAddr, err := context.LinkFactory().HardwareAddress(cmd.LinkName)
if err != nil {
return fmt.Errorf("get hardware address: %s", err)
}
cmd.Result = hwAddr
return nil
}
func (cn CreateSandbox) Execute(context executor.Context) error {
logger := context.Logger().WithData(lager.Data{"sandbox-name": cn.Name})
logger.Info("create-sandbox")
defer logger.Info("create-sandbox-complete")
_, err := context.SandboxRepository().Create(cn.Name)
if err != nil {
return fmt.Errorf("create sandbox: %s", err)
}
return nil
}
func (s MoveLink) Execute(context executor.Context) error {
sbox, err := context.SandboxRepository().Get(s.SandboxName)
if err != nil {
return fmt.Errorf("get sandbox: %s", err)
}
err = context.LinkFactory().SetNamespace(s.Name, sbox.Namespace().Fd())
if err != nil {
return fmt.Errorf("move link: %s", err)
}
return nil
}
func (sm StartMonitor) Execute(context executor.Context) error {
ns, err := context.SandboxNamespaceRepository().Get(sm.SandboxName)
if err != nil {
return fmt.Errorf("getting sandbox namespace: %s", err)
}
return sm.HostNamespace.Execute(func(_ *os.File) error {
err = sm.Watcher.StartMonitor(ns, sm.VxlanLinkName)
if err != nil {
return fmt.Errorf("watcher start monitor: %s", err)
}
return nil
})
}
func (c CleanupSandbox) Execute(context executor.Context) error {
logger := context.Logger().Session("cleanup-sandbox", lager.Data{"sandbox-name": c.SandboxName})
logger.Info("start")
defer logger.Info("complete")
sandboxRepo := context.SandboxRepository()
sbox, err := sandboxRepo.Get(c.SandboxName)
if err != nil {
if err == sandbox.NotFoundError {
return nil
}
logger.Error("get-sandbox-failed", err)
return fmt.Errorf("get sandbox: %s", err)
}
// TODO: move into sandbox
sbox.Lock()
defer sbox.Unlock()
vethLinkCount, err := sbox.VethDeviceCount()
if err != nil {
return fmt.Errorf("counting veth devices: %s", err)
}
logger.Info("veth-links-remaining", lager.Data{"count": vethLinkCount})
if vethLinkCount == 0 {
err = sbox.Namespace().Execute(func(*os.File) error {
err := context.LinkFactory().DeleteLinkByName(c.VxlanDeviceName)
if err != nil {
if context.LinkFactory().Exists(c.VxlanDeviceName) {
return fmt.Errorf("destroying vxlan %s: %s", c.VxlanDeviceName, err)
}
}
return nil
})
if err != nil {
return fmt.Errorf("in namespace %s: %s", c.SandboxName, err)
}
err = sandboxRepo.Destroy(c.SandboxName)
switch err {
case nil:
case sandbox.AlreadyDestroyedError:
case sandbox.NotFoundError:
default:
return fmt.Errorf("sandbox destroy: %s", err)
}
}
return nil
}
func (l LinkExists) Satisfied(context executor.Context) (bool, error) {
return context.LinkFactory().Exists(l.Name), nil
}
func (sd StartDNSServer) Execute(context executor.Context) error {
listenerFactory := context.ListenerFactory()
listenAddress, err := net.ResolveUDPAddr("udp", sd.ListenAddress)
if err != nil {
return fmt.Errorf("resolve udp address: %s", err)
}
sbox, err := context.SandboxRepository().Get(sd.SandboxName)
if err != nil {
return fmt.Errorf("get sandbox: %s", err)
}
sbox.Lock()
defer sbox.Unlock()
namespace := sbox.Namespace()
var conn *net.UDPConn
err = namespace.Execute(func(*os.File) error {
linkFactory := context.LinkFactory()
err := linkFactory.CreateDummy(DNS_INTERFACE_NAME)
if err != nil {
return fmt.Errorf("create dummy: %s", err)
}
dnsAddress := &net.IPNet{
IP: listenAddress.IP,
Mask: net.CIDRMask(32, 32),
}
err = context.AddressManager().AddAddress(DNS_INTERFACE_NAME, dnsAddress)
if err != nil {
return fmt.Errorf("add address: %s", err)
}
err = linkFactory.SetUp(DNS_INTERFACE_NAME)
if err != nil {
return fmt.Errorf("set up: %s", err)
}
conn, err = listenerFactory.ListenUDP("udp", listenAddress)
if err != nil {
return fmt.Errorf("listen udp: %s", err)
}
return nil
})
if err != nil {
return fmt.Errorf("namespace execute: %s", err)
}
dnsServerRunner := context.DNSServerFactory().New(conn, namespace)
err = sbox.LaunchDNS(dnsServerRunner)
if err != nil {
return fmt.Errorf("sandbox launch dns: %s", err)
}
return nil
}
sandboxNamespaceRepository,
sandboxRepository,
listenerFactory,
dnsServerFactory,
)
})
It("executes a command with a context", func() {
err := ex.Execute(command)
Expect(err).NotTo(HaveOccurred())
Expect(command.ExecuteCallCount()).To(Equal(1))
})
Describe("Context", func() {
var context executor.Context
BeforeEach(func() {
ex.Execute(command)
Expect(command.ExecuteCallCount()).To(Equal(1))
context = command.ExecuteArgsForCall(0)
})
Describe("AddressManager", func() {
It("returns the address manager", func() {
Expect(context.AddressManager()).To(Equal(addressManager))
})
})
Describe("LinkFactory", func() {