Expect(err).NotTo(HaveOccurred())
nsPath := filepath.Join(tempDir, "namespace")
nsFile, err := os.Create(nsPath)
Expect(err).NotTo(HaveOccurred())
nsFile.Close()
ns = namespace.NewNamespace(nsPath)
})
AfterEach(func() {
os.RemoveAll(tempDir)
})
It("returns an open file representing the namesapce", func() {
f, err := ns.Open()
Expect(err).NotTo(HaveOccurred())
Expect(f.Name()).To(Equal(ns.Path()))
f.Close()
})
Context("when open fails", func() {
BeforeEach(func() {
err := os.Remove(ns.Path())
Expect(err).NotTo(HaveOccurred())
})
It("returns the error from open", func() {
_, err := ns.Open()
Expect(err).To(HaveOccurred())
})
It("should release the IPAM managed address", func() {
execCNI("DEL", netConfig, containerNS, containerID, sandboxRepoDir)
Eventually(session, DEFAULT_TIMEOUT).Should(gexec.Exit(0))
addressPath := filepath.Join("/var/lib/cni/networks", "test-network", containerAddress)
_, err := os.Open(addressPath)
Expect(err).To(HaveOccurred())
Expect(os.IsNotExist(err)).To(BeTrue())
})
Context("when the last container leaves the network", func() {
It("should remove the sandboxNS", func() {
execCNI("DEL", netConfig, containerNS, containerID, sandboxRepoDir)
Eventually(session, DEFAULT_TIMEOUT).Should(gexec.Exit(0))
_, err := sandboxNS.Open()
Expect(err).To(HaveOccurred())
Expect(os.IsNotExist(err)).To(BeTrue())
})
})
Context("when a container remains attached to the sandbox", func() {
var containerNS2 namespace.Namespace
BeforeEach(func() {
var err error
containerNS2, err = namespaceRepo.Create("container-ns-2")
Expect(err).NotTo(HaveOccurred())
execCNI("ADD", netConfig, containerNS2, "guid-2", sandboxRepoDir)
Eventually(session, DEFAULT_TIMEOUT).Should(gexec.Exit(0))