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authorValentin Rothberg <rothberg@redhat.com>2020-07-31 09:27:21 +0200
committerValentin Rothberg <rothberg@redhat.com>2020-09-08 08:47:19 +0200
commit7fea46752cbfb0ef7bfdd694afe95038c9875212 (patch)
treecabd8c0ea232c36cfff7511cb1b1f3bfa30c0bbf /test/e2e
parentbe7778df6c70227dab760ea92637ed97dad29641 (diff)
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support multi-image (docker) archives
Support loading and saving tarballs with more than one image. Add a new `/libpod/images/export` endpoint to the rest API to allow for exporting/saving multiple images into an archive. Note that a non-release version of containers/image is vendored. A release version must be vendored before cutting a new Podman release. We force the containers/image version via a replace in the go.mod file; this way go won't try to match the versions. Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
Diffstat (limited to 'test/e2e')
-rw-r--r--test/e2e/load_test.go8
-rw-r--r--test/e2e/pull_test.go43
-rw-r--r--test/e2e/save_test.go47
l---------test/e2e/testdata/image1
4 files changed, 99 insertions, 0 deletions
diff --git a/test/e2e/load_test.go b/test/e2e/load_test.go
index 6a7f15e1f..2b401a09d 100644
--- a/test/e2e/load_test.go
+++ b/test/e2e/load_test.go
@@ -269,4 +269,12 @@ var _ = Describe("Podman load", func() {
result.WaitWithDefaultTimeout()
Expect(result.ExitCode()).To(Equal(0))
})
+
+ It("podman load multi-image archive", func() {
+ result := podmanTest.PodmanNoCache([]string{"load", "-i", "./testdata/image/docker-two-images.tar.xz"})
+ result.WaitWithDefaultTimeout()
+ Expect(result.ExitCode()).To(Equal(0))
+ Expect(result.LineInOutputContains("example.com/empty:latest")).To(BeTrue())
+ Expect(result.LineInOutputContains("example.com/empty/but:different")).To(BeTrue())
+ })
})
diff --git a/test/e2e/pull_test.go b/test/e2e/pull_test.go
index 6d1cb6cbc..98b81876a 100644
--- a/test/e2e/pull_test.go
+++ b/test/e2e/pull_test.go
@@ -251,6 +251,49 @@ var _ = Describe("Podman pull", func() {
session = podmanTest.PodmanNoCache([]string{"rmi", "alpine"})
session.WaitWithDefaultTimeout()
Expect(session.ExitCode()).To(Equal(0))
+
+ // Pulling a multi-image archive without further specifying
+ // which image _must_ error out. Pulling is restricted to one
+ // image.
+ session = podmanTest.PodmanNoCache([]string{"pull", fmt.Sprintf("docker-archive:./testdata/image/docker-two-images.tar.xz")})
+ session.WaitWithDefaultTimeout()
+ Expect(session.ExitCode()).To(Equal(125))
+ expectedError := "Unexpected tar manifest.json: expected 1 item, got 2"
+ found, _ := session.ErrorGrepString(expectedError)
+ Expect(found).To(Equal(true))
+
+ // Now pull _one_ image from a multi-image archive via the name
+ // and index syntax.
+ session = podmanTest.PodmanNoCache([]string{"pull", fmt.Sprintf("docker-archive:./testdata/image/docker-two-images.tar.xz:@0")})
+ session.WaitWithDefaultTimeout()
+ Expect(session.ExitCode()).To(Equal(0))
+
+ session = podmanTest.PodmanNoCache([]string{"pull", fmt.Sprintf("docker-archive:./testdata/image/docker-two-images.tar.xz:example.com/empty:latest")})
+ session.WaitWithDefaultTimeout()
+ Expect(session.ExitCode()).To(Equal(0))
+
+ session = podmanTest.PodmanNoCache([]string{"pull", fmt.Sprintf("docker-archive:./testdata/image/docker-two-images.tar.xz:@1")})
+ session.WaitWithDefaultTimeout()
+ Expect(session.ExitCode()).To(Equal(0))
+
+ session = podmanTest.PodmanNoCache([]string{"pull", fmt.Sprintf("docker-archive:./testdata/image/docker-two-images.tar.xz:example.com/empty/but:different")})
+ session.WaitWithDefaultTimeout()
+ Expect(session.ExitCode()).To(Equal(0))
+
+ // Now check for some errors.
+ session = podmanTest.PodmanNoCache([]string{"pull", fmt.Sprintf("docker-archive:./testdata/image/docker-two-images.tar.xz:foo.com/does/not/exist:latest")})
+ session.WaitWithDefaultTimeout()
+ Expect(session.ExitCode()).To(Equal(125))
+ expectedError = "Tag \"foo.com/does/not/exist:latest\" not found"
+ found, _ = session.ErrorGrepString(expectedError)
+ Expect(found).To(Equal(true))
+
+ session = podmanTest.PodmanNoCache([]string{"pull", fmt.Sprintf("docker-archive:./testdata/image/docker-two-images.tar.xz:@2")})
+ session.WaitWithDefaultTimeout()
+ Expect(session.ExitCode()).To(Equal(125))
+ expectedError = "Invalid source index @2, only 2 manifest items available"
+ found, _ = session.ErrorGrepString(expectedError)
+ Expect(found).To(Equal(true))
})
It("podman pull from oci-archive", func() {
diff --git a/test/e2e/save_test.go b/test/e2e/save_test.go
index e1396f1b2..1f1258be3 100644
--- a/test/e2e/save_test.go
+++ b/test/e2e/save_test.go
@@ -128,4 +128,51 @@ var _ = Describe("Podman save", func() {
save.WaitWithDefaultTimeout()
Expect(save.ExitCode()).To(Equal(0))
})
+
+ It("podman save --multi-image-archive (tagged images)", func() {
+ multiImageSave(podmanTest, RESTORE_IMAGES)
+ })
+
+ It("podman save --multi-image-archive (untagged images)", func() {
+ // Refer to images via ID instead of tag.
+ session := podmanTest.PodmanNoCache([]string{"images", "--format", "{{.ID}}"})
+ session.WaitWithDefaultTimeout()
+ Expect(session.ExitCode()).To(Equal(0))
+ ids := session.OutputToStringArray()
+
+ Expect(len(RESTORE_IMAGES), len(ids))
+ multiImageSave(podmanTest, ids)
+ })
})
+
+// Create a multi-image archive, remove all images, load it and
+// make sure that all images are (again) present.
+func multiImageSave(podmanTest *PodmanTestIntegration, images []string) {
+ // Create the archive.
+ outfile := filepath.Join(podmanTest.TempDir, "temp.tar")
+ session := podmanTest.PodmanNoCache(append([]string{"save", "-o", outfile, "--multi-image-archive"}, images...))
+ session.WaitWithDefaultTimeout()
+ Expect(session.ExitCode()).To(Equal(0))
+
+ // Remove all images.
+ session = podmanTest.PodmanNoCache([]string{"rmi", "-af"})
+ session.WaitWithDefaultTimeout()
+ Expect(session.ExitCode()).To(Equal(0))
+
+ // Now load the archive.
+ session = podmanTest.PodmanNoCache([]string{"load", "-i", outfile})
+ session.WaitWithDefaultTimeout()
+ Expect(session.ExitCode()).To(Equal(0))
+ // Grep for each image in the `podman load` output.
+ for _, image := range images {
+ found, _ := session.GrepString(image)
+ Expect(found).Should(BeTrue())
+ }
+
+ // Make sure that each image has really been loaded.
+ for _, image := range images {
+ session = podmanTest.PodmanNoCache([]string{"image", "exists", image})
+ session.WaitWithDefaultTimeout()
+ Expect(session.ExitCode()).To(Equal(0))
+ }
+}
diff --git a/test/e2e/testdata/image b/test/e2e/testdata/image
new file mode 120000
index 000000000..a9e67bf9a
--- /dev/null
+++ b/test/e2e/testdata/image
@@ -0,0 +1 @@
+../../../libpod/image/testdata/ \ No newline at end of file