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package integration
import (
"fmt"
"os"
"sort"
. "github.com/containers/podman/v4/test/utils"
"github.com/containers/storage/pkg/stringid"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
. "github.com/onsi/gomega/gexec"
)
var _ = Describe("Podman diff", func() {
var (
tempdir string
err error
podmanTest *PodmanTestIntegration
)
BeforeEach(func() {
tempdir, err = CreateTempDirInTempDir()
if err != nil {
os.Exit(1)
}
podmanTest = PodmanTestCreate(tempdir)
podmanTest.Setup()
})
AfterEach(func() {
podmanTest.Cleanup()
f := CurrentGinkgoTestDescription()
processTestResult(f)
})
It("podman diff of image", func() {
session := podmanTest.Podman([]string{"diff", ALPINE})
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
Expect(len(session.OutputToStringArray())).To(BeNumerically(">", 0))
})
It("podman diff bogus image", func() {
session := podmanTest.Podman([]string{"diff", "1234"})
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(125))
})
It("podman diff image with json output", func() {
session := podmanTest.Podman([]string{"diff", "--format=json", ALPINE})
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
Expect(session.OutputToString()).To(BeValidJSON())
})
It("podman diff container and committed image", func() {
session := podmanTest.Podman([]string{"run", "--name=diff-test", ALPINE, "touch", "/tmp/diff-test"})
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
session = podmanTest.Podman([]string{"diff", "diff-test"})
session.WaitWithDefaultTimeout()
containerDiff := session.OutputToStringArray()
sort.Strings(containerDiff)
Expect(session.OutputToString()).To(ContainSubstring("C /tmp"))
Expect(session.OutputToString()).To(ContainSubstring("A /tmp/diff-test"))
session = podmanTest.Podman([]string{"commit", "diff-test", "diff-test-img"})
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
session = podmanTest.Podman([]string{"diff", "diff-test-img"})
session.WaitWithDefaultTimeout()
imageDiff := session.OutputToStringArray()
sort.Strings(imageDiff)
Expect(imageDiff).To(Equal(containerDiff))
})
It("podman diff latest container", func() {
session := podmanTest.Podman([]string{"run", "--name", "diff-test", ALPINE, "touch", "/tmp/diff-test"})
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
if !IsRemote() {
session = podmanTest.Podman([]string{"diff", "-l"})
} else {
session = podmanTest.Podman([]string{"diff", "diff-test"})
}
session.WaitWithDefaultTimeout()
containerDiff := session.OutputToStringArray()
sort.Strings(containerDiff)
Expect(session.OutputToString()).To(ContainSubstring("C /tmp"))
Expect(session.OutputToString()).To(ContainSubstring("A /tmp/diff-test"))
Expect(session).Should(Exit(0))
})
It("podman image diff", func() {
file1 := "/" + stringid.GenerateRandomID()
file2 := "/" + stringid.GenerateRandomID()
file3 := "/" + stringid.GenerateRandomID()
// Create container image with the files
containerfile := fmt.Sprintf(`
FROM %s
RUN touch %s
RUN touch %s
RUN touch %s`, ALPINE, file1, file2, file3)
image := "podman-diff-test"
podmanTest.BuildImage(containerfile, image, "true")
// build a second image which used as base to compare against
// using ALPINE does not work in CI, most likely due the extra vfs.imagestore
containerfile = fmt.Sprintf(`
FROM %s
RUN echo test
`, ALPINE)
baseImage := "base-image"
podmanTest.BuildImage(containerfile, baseImage, "true")
session := podmanTest.Podman([]string{"image", "diff", image})
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
Expect(session.OutputToStringArray()).To(HaveLen(1))
Expect(session.OutputToString()).To(Equal("A " + file3))
session = podmanTest.Podman([]string{"image", "diff", image, baseImage})
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
Expect(session.OutputToStringArray()).To(HaveLen(4))
Expect(session.OutputToString()).To(ContainSubstring("A " + file1))
Expect(session.OutputToString()).To(ContainSubstring("A " + file2))
Expect(session.OutputToString()).To(ContainSubstring("A " + file3))
})
It("podman image diff of single image", func() {
session := podmanTest.Podman([]string{"image", "diff", BB})
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
Expect(len(session.OutputToStringArray())).To(BeNumerically(">", 0))
})
It("podman image diff bogus image", func() {
session := podmanTest.Podman([]string{"image", "diff", "1234", ALPINE})
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(125))
})
It("podman image diff of the same image", func() {
session := podmanTest.Podman([]string{"image", "diff", ALPINE, ALPINE})
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
Expect(session.OutputToStringArray()).To(BeEmpty())
})
It("podman diff container and image with same name", func() {
imagefile := "/" + stringid.GenerateRandomID()
confile := "/" + stringid.GenerateRandomID()
// Create container image with the files
containerfile := fmt.Sprintf(`
FROM %s
RUN touch %s`, ALPINE, imagefile)
name := "podman-diff-test"
podmanTest.BuildImage(containerfile, name, "false")
session := podmanTest.Podman([]string{"run", "--name", name, ALPINE, "touch", confile})
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
// podman diff prefers image over container when they have the same name
session = podmanTest.Podman([]string{"diff", name})
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
Expect(session.OutputToStringArray()).To(HaveLen(2))
Expect(session.OutputToString()).To(ContainSubstring(imagefile))
session = podmanTest.Podman([]string{"image", "diff", name})
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
Expect(session.OutputToStringArray()).To(HaveLen(2))
Expect(session.OutputToString()).To(ContainSubstring(imagefile))
// container diff has to show the container
session = podmanTest.Podman([]string{"container", "diff", name})
session.WaitWithDefaultTimeout()
Expect(session).Should(Exit(0))
Expect(session.OutputToStringArray()).To(HaveLen(2))
Expect(session.OutputToString()).To(ContainSubstring(confile))
})
})
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