originalNetNS ns.NetNS
targetNetNS ns.NetNS
)
BeforeEach(func() {
var err error
originalNetNS, err = ns.NewNS()
Expect(err).NotTo(HaveOccurred())
targetNetNS, err = ns.NewNS()
Expect(err).NotTo(HaveOccurred())
})
AfterEach(func() {
Expect(targetNetNS.Close()).To(Succeed())
Expect(originalNetNS.Close()).To(Succeed())
})
It("executes the callback within the target network namespace", func() {
expectedInode, err := getInodeNS(targetNetNS)
Expect(err).NotTo(HaveOccurred())
err = targetNetNS.Do(func(ns.NetNS) error {
defer GinkgoRecover()
actualInode, err := getInodeCurNetNS()
Expect(err).NotTo(HaveOccurred())
Expect(actualInode).To(Equal(expectedInode))
return nil
})
hostVeth, containerVeth, err = ip.SetupVeth(fmt.Sprintf(ifaceFormatString, ifaceCounter), mtu, hostNetNS)
if err != nil {
return err
}
Expect(err).NotTo(HaveOccurred())
hostVethName = hostVeth.Attrs().Name
containerVethName = containerVeth.Attrs().Name
return nil
})
})
AfterEach(func() {
Expect(containerNetNS.Close()).To(Succeed())
Expect(hostNetNS.Close()).To(Succeed())
ifaceCounter++
rand.Reader = originalRandReader
})
It("SetupVeth must put the veth endpoints into the separate namespaces", func() {
_ = containerNetNS.Do(func(ns.NetNS) error {
defer GinkgoRecover()
containerVethFromName, err := netlink.LinkByName(containerVethName)
Expect(err).NotTo(HaveOccurred())
Expect(containerVethFromName.Attrs().Index).To(Equal(containerVeth.Attrs().Index))
return nil
})
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
var _ = Describe("ptp Operations", func() {
var originalNS ns.NetNS
BeforeEach(func() {
// Create a new NetNS so we don't modify the host
var err error
originalNS, err = ns.NewNS()
Expect(err).NotTo(HaveOccurred())
})
AfterEach(func() {
Expect(originalNS.Close()).To(Succeed())
})
It("configures and deconfigures a ptp link with ADD/DEL", func() {
const IFNAME = "ptp0"
conf := `{
"name": "mynet",
"type": "ptp",
"ipMasq": true,
"mtu": 5000,
"ipam": {
"type": "host-local",
"subnet": "10.1.2.0/24"
}
}`
var err error
networkNS, err = ns.NewNS()
Expect(err).NotTo(HaveOccurred())
environ = []string{
fmt.Sprintf("CNI_CONTAINERID=%s", containerID),
fmt.Sprintf("CNI_NETNS=%s", networkNS.Path()),
fmt.Sprintf("CNI_IFNAME=%s", "this is ignored"),
fmt.Sprintf("CNI_ARGS=%s", "none"),
fmt.Sprintf("CNI_PATH=%s", "/some/test/path"),
}
command.Stdin = strings.NewReader("this doesn't matter")
})
AfterEach(func() {
Expect(networkNS.Close()).To(Succeed())
})
Context("when given a network namespace", func() {
It("sets the lo device to UP", func() {
command.Env = append(environ, fmt.Sprintf("CNI_COMMAND=%s", "ADD"))
session, err := gexec.Start(command, GinkgoWriter, GinkgoWriter)
Expect(err).NotTo(HaveOccurred())
Eventually(session).Should(gbytes.Say(`{.*}`))
Eventually(session).Should(gexec.Exit(0))
var lo *net.Interface
err = networkNS.Do(func(ns.NetNS) error {
var err error