mirror of https://github.com/containers/podman.git
286 lines
9.8 KiB
Go
286 lines
9.8 KiB
Go
package integration
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import (
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"os"
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"os/exec"
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"os/user"
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"path/filepath"
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. "github.com/containers/podman/v4/test/utils"
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. "github.com/onsi/ginkgo"
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. "github.com/onsi/gomega"
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. "github.com/onsi/gomega/gexec"
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)
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// NOTE: Only smoke tests. The system tests (i.e., "./test/system/*") take
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// care of function and regression tests. Please consider adding system tests
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// rather than e2e tests. System tests are used in RHEL gating.
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var _ = Describe("Podman cp", func() {
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var (
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tempdir string
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err error
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podmanTest *PodmanTestIntegration
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)
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BeforeEach(func() {
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tempdir, err = CreateTempDirInTempDir()
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if err != nil {
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os.Exit(1)
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}
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podmanTest = PodmanTestCreate(tempdir)
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podmanTest.Setup()
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})
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AfterEach(func() {
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podmanTest.Cleanup()
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f := CurrentGinkgoTestDescription()
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processTestResult(f)
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})
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// Copy a file to the container, then back to the host and make sure
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// that the contents match.
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It("podman cp file", func() {
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srcFile, err := os.CreateTemp("", "")
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Expect(err).ToNot(HaveOccurred())
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defer srcFile.Close()
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defer os.Remove(srcFile.Name())
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originalContent := []byte("podman cp file test")
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err = os.WriteFile(srcFile.Name(), originalContent, 0644)
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Expect(err).ToNot(HaveOccurred())
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// Create a container. NOTE that container mustn't be running for copying.
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session := podmanTest.Podman([]string{"create", ALPINE})
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session.WaitWithDefaultTimeout()
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Expect(session).Should(Exit(0))
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name := session.OutputToString()
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// Copy TO the container.
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// Cannot copy to a nonexistent path (note the trailing "/").
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session = podmanTest.Podman([]string{"cp", srcFile.Name(), name + ":foo/"})
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session.WaitWithDefaultTimeout()
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Expect(session).To(ExitWithError())
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// The file will now be created (and written to).
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session = podmanTest.Podman([]string{"cp", srcFile.Name(), name + ":foo"})
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session.WaitWithDefaultTimeout()
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Expect(session).Should(Exit(0))
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// Copy FROM the container.
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destFile, err := os.CreateTemp("", "")
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Expect(err).ToNot(HaveOccurred())
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defer destFile.Close()
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defer os.Remove(destFile.Name())
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session = podmanTest.Podman([]string{"cp", name + ":foo", destFile.Name()})
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session.WaitWithDefaultTimeout()
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Expect(session).Should(Exit(0))
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session = podmanTest.Podman([]string{"start", name})
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session.WaitWithDefaultTimeout()
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Expect(session).Should(Exit(0))
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// Now make sure the content matches.
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roundtripContent, err := os.ReadFile(destFile.Name())
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Expect(err).ToNot(HaveOccurred())
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Expect(roundtripContent).To(Equal(originalContent))
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})
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// Copy a file to the container, then back to the host in --pid=host
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It("podman cp --pid=host file", func() {
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SkipIfRootlessCgroupsV1("Not supported for rootless + CgroupsV1")
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srcFile, err := os.CreateTemp("", "")
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Expect(err).ToNot(HaveOccurred())
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defer srcFile.Close()
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defer os.Remove(srcFile.Name())
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originalContent := []byte("podman cp file test")
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err = os.WriteFile(srcFile.Name(), originalContent, 0644)
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Expect(err).ToNot(HaveOccurred())
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// Create a container. NOTE that container mustn't be running for copying.
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session := podmanTest.Podman([]string{"create", "--pid=host", ALPINE, "top"})
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session.WaitWithDefaultTimeout()
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Expect(session).Should(Exit(0))
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name := session.OutputToString()
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session = podmanTest.Podman([]string{"start", name})
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session.WaitWithDefaultTimeout()
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Expect(session).Should(Exit(0))
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// The file will now be created (and written to).
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session = podmanTest.Podman([]string{"cp", srcFile.Name(), name + ":foo"})
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session.WaitWithDefaultTimeout()
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Expect(session).Should(Exit(0))
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// Copy FROM the container.
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destFile, err := os.CreateTemp("", "")
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Expect(err).ToNot(HaveOccurred())
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defer destFile.Close()
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defer os.Remove(destFile.Name())
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session = podmanTest.Podman([]string{"cp", name + ":foo", destFile.Name()})
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session.WaitWithDefaultTimeout()
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Expect(session).Should(Exit(0))
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// Now make sure the content matches.
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roundtripContent, err := os.ReadFile(destFile.Name())
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Expect(err).ToNot(HaveOccurred())
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Expect(roundtripContent).To(Equal(originalContent))
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})
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// Create a symlink in the container, use it as a copy destination and
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// make sure that the link and the resolved path are accessible and
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// give the right content.
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It("podman cp symlink", func() {
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srcFile, err := os.CreateTemp("", "")
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Expect(err).ToNot(HaveOccurred())
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defer srcFile.Close()
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defer os.Remove(srcFile.Name())
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originalContent := []byte("podman cp symlink test")
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err = os.WriteFile(srcFile.Name(), originalContent, 0644)
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Expect(err).ToNot(HaveOccurred())
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session := podmanTest.Podman([]string{"run", "-d", ALPINE, "top"})
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session.WaitWithDefaultTimeout()
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Expect(session).Should(Exit(0))
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name := session.OutputToString()
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session = podmanTest.Podman([]string{"exec", name, "ln", "-s", "/tmp", "/test"})
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session.WaitWithDefaultTimeout()
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Expect(session).Should(Exit(0))
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session = podmanTest.Podman([]string{"cp", "--pause=false", srcFile.Name(), name + ":/test"})
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session.WaitWithDefaultTimeout()
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Expect(session).Should(Exit(0))
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session = podmanTest.Podman([]string{"exec", name, "cat", "/tmp/" + filepath.Base(srcFile.Name())})
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session.WaitWithDefaultTimeout()
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Expect(session).Should(Exit(0))
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Expect(session.OutputToString()).To(ContainSubstring(string(originalContent)))
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session = podmanTest.Podman([]string{"exec", name, "cat", "/test/" + filepath.Base(srcFile.Name())})
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session.WaitWithDefaultTimeout()
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Expect(session).Should(Exit(0))
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Expect(session.OutputToString()).To(ContainSubstring(string(originalContent)))
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})
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// Copy a file to a volume in the container. The tricky part is that
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// containers mustn't be running for copying, so Podman has to do some
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// intense Yoga and 1) detect volume paths on the container, 2) resolve
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// the path to the volume's mount point on the host, and 3) copy the
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// data to the volume and not the container.
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It("podman cp volume", func() {
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srcFile, err := os.CreateTemp("", "")
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Expect(err).ToNot(HaveOccurred())
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defer srcFile.Close()
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defer os.Remove(srcFile.Name())
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originalContent := []byte("podman cp volume")
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err = os.WriteFile(srcFile.Name(), originalContent, 0644)
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Expect(err).ToNot(HaveOccurred())
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session := podmanTest.Podman([]string{"volume", "create", "data"})
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session.WaitWithDefaultTimeout()
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Expect(session).Should(Exit(0))
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session = podmanTest.Podman([]string{"create", "-v", "data:/data", "--name", "container1", ALPINE})
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session.WaitWithDefaultTimeout()
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Expect(session).Should(Exit(0))
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session = podmanTest.Podman([]string{"cp", srcFile.Name(), "container1" + ":/data/file.txt"})
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session.WaitWithDefaultTimeout()
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Expect(session).Should(Exit(0))
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// Now get the volume's mount point, read the file and make
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// sure the contents match.
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session = podmanTest.Podman([]string{"volume", "inspect", "data", "--format", "{{.Mountpoint}}"})
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session.WaitWithDefaultTimeout()
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Expect(session).Should(Exit(0))
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volumeMountPoint := session.OutputToString()
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copiedContent, err := os.ReadFile(filepath.Join(volumeMountPoint, "file.txt"))
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Expect(err).ToNot(HaveOccurred())
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Expect(copiedContent).To(Equal(originalContent))
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})
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// Create another user in the container, let them create a file, copy
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// it to the host and back to the container and make sure that we can
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// access it, and (roughly) the right users own it.
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It("podman cp from ctr chown ", func() {
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srcFile, err := os.CreateTemp("", "")
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Expect(err).ToNot(HaveOccurred())
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defer srcFile.Close()
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defer os.Remove(srcFile.Name())
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setup := podmanTest.RunTopContainer("testctr")
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setup.WaitWithDefaultTimeout()
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Expect(setup).Should(Exit(0))
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session := podmanTest.Podman([]string{"exec", "testctr", "adduser", "-S", "testuser"})
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session.WaitWithDefaultTimeout()
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Expect(session).Should(Exit(0))
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session = podmanTest.Podman([]string{"exec", "-u", "testuser", "testctr", "touch", "/tmp/testfile"})
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session.WaitWithDefaultTimeout()
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Expect(session).Should(Exit(0))
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session = podmanTest.Podman([]string{"cp", "--pause=false", "testctr:/tmp/testfile", srcFile.Name()})
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session.WaitWithDefaultTimeout()
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Expect(session).Should(Exit(0))
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// owner of the file copied to local machine is not testuser
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u, err := user.Current()
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Expect(err).ToNot(HaveOccurred())
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cmd := exec.Command("ls", "-l", srcFile.Name())
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cmdRet, err := cmd.Output()
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Expect(err).ToNot(HaveOccurred())
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Expect(string(cmdRet)).To(ContainSubstring(u.Username))
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session = podmanTest.Podman([]string{"cp", "--pause=false", srcFile.Name(), "testctr:testfile2"})
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session.WaitWithDefaultTimeout()
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Expect(session).Should(Exit(0))
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// owner of the file copied to a container is the root user
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session = podmanTest.Podman([]string{"exec", "-it", "testctr", "ls", "-l", "testfile2"})
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session.WaitWithDefaultTimeout()
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Expect(session).Should(Exit(0))
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Expect(session.OutputToString()).To(ContainSubstring("root"))
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})
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// Copy the root dir "/" of a container to the host.
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It("podman cp the root directory from the ctr to an existing directory on the host ", func() {
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container := "copyroottohost"
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session := podmanTest.RunTopContainer(container)
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session.WaitWithDefaultTimeout()
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Expect(session).Should(Exit(0))
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session = podmanTest.Podman([]string{"exec", container, "touch", "/dummy.txt"})
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session.WaitWithDefaultTimeout()
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Expect(session).Should(Exit(0))
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tmpDir, err := os.MkdirTemp("", "")
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Expect(err).ToNot(HaveOccurred())
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session = podmanTest.Podman([]string{"cp", container + ":/", tmpDir})
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session.WaitWithDefaultTimeout()
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Expect(session).Should(Exit(0))
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cmd := exec.Command("ls", "-la", tmpDir)
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output, err := cmd.Output()
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lsOutput := string(output)
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Expect(err).ToNot(HaveOccurred())
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Expect(lsOutput).To(ContainSubstring("dummy.txt"))
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Expect(lsOutput).To(ContainSubstring("tmp"))
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Expect(lsOutput).To(ContainSubstring("etc"))
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Expect(lsOutput).To(ContainSubstring("var"))
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Expect(lsOutput).To(ContainSubstring("bin"))
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Expect(lsOutput).To(ContainSubstring("usr"))
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})
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})
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