e2e: reduce dependency on /tmp for e2e tests

- Use filepath.Join(podmanTest.TempDir, "any") instead of "/tmp/any"

- Add generatePolicyFile() to avoid the hardcording of "keyPath": "tmp/key.gpg"

Signed-off-by: Toshiki Sonoda <sonoda.toshiki@fujitsu.com>

test/e2e/checkpoint_test.go

@@ -505,7 +505,7 @@ var _ = Describe("Podman checkpoint", func() {
 		Expect(session).Should(Exit(0))
 		Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
 		cid := session.OutputToString()
-		fileName := "/tmp/checkpoint-" + cid + ".tar.gz"
+		fileName := filepath.Join(podmanTest.TempDir, "/checkpoint-"+cid+".tar.gz")
 
 		result := podmanTest.Podman([]string{"container", "checkpoint", cid, "-e", fileName})
 		result.WaitWithDefaultTimeout()
@@ -556,7 +556,7 @@ var _ = Describe("Podman checkpoint", func() {
 		Expect(session).Should(Exit(0))
 		Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
 		cid := session.OutputToString()
-		fileName := "/tmp/checkpoint-" + cid + ".tar"
+		fileName := filepath.Join(podmanTest.TempDir, "/checkpoint-"+cid+".tar.gz")
 
 		// Checkpoint with the default algorithm
 		result := podmanTest.Podman([]string{"container", "checkpoint", cid, "-e", fileName})
@@ -661,7 +661,7 @@ var _ = Describe("Podman checkpoint", func() {
 		Expect(session).Should(Exit(0))
 		Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
 		cid := session.OutputToString()
-		fileName := "/tmp/checkpoint-" + cid + ".tar.gz"
+		fileName := filepath.Join(podmanTest.TempDir, "/checkpoint-"+cid+".tar.gz")
 
 		// Change the container's root file-system
 		result := podmanTest.Podman([]string{"exec", cid, "/bin/sh", "-c", "echo test" + cid + "test > /test.output"})
@@ -723,7 +723,7 @@ var _ = Describe("Podman checkpoint", func() {
 		Expect(session).Should(Exit(0))
 		Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
 		cid := session.OutputToString()
-		fileName := "/tmp/checkpoint-" + cid + ".tar.gz"
+		fileName := filepath.Join(podmanTest.TempDir, "/checkpoint-"+cid+".tar.gz")
 
 		// Change the container's root file-system
 		result := podmanTest.Podman([]string{"exec", cid, "/bin/sh", "-c", "echo test" + cid + "test > /test.output"})
@@ -765,7 +765,7 @@ var _ = Describe("Podman checkpoint", func() {
 		Expect(session).Should(Exit(0))
 		Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
 		cid := session.OutputToString()
-		fileName := "/tmp/checkpoint-" + cid + ".tar.gz"
+		fileName := filepath.Join(podmanTest.TempDir, "/checkpoint-"+cid+".tar.gz")
 
 		// Change the container's root file-system
 		result := podmanTest.Podman([]string{"exec", cid, "/bin/sh", "-c", "echo test" + cid + "test > /test.output"})
@@ -808,7 +808,7 @@ var _ = Describe("Podman checkpoint", func() {
 		Expect(session).Should(Exit(0))
 		Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
 		cid := session.OutputToString()
-		fileName := "/tmp/checkpoint-" + cid + ".tar.gz"
+		fileName := filepath.Join(podmanTest.TempDir, "/checkpoint-"+cid+".tar.gz")
 
 		// Checkpoint the container
 		result := podmanTest.Podman([]string{"container", "checkpoint", cid, "-e", fileName})
@@ -857,7 +857,7 @@ var _ = Describe("Podman checkpoint", func() {
 		Expect(result.ErrorToString()).To(ContainSubstring("cannot checkpoint containers that have been started with '--rm'"))
 
 		// Checkpointing with --export should still work
-		fileName := "/tmp/checkpoint-" + cid + ".tar.gz"
+		fileName := filepath.Join(podmanTest.TempDir, "/checkpoint-"+cid+".tar.gz")
 
 		result = podmanTest.Podman([]string{"container", "checkpoint", cid, "-e", fileName})
 		result.WaitWithDefaultTimeout()
@@ -929,7 +929,7 @@ var _ = Describe("Podman checkpoint", func() {
 		result.WaitWithDefaultTimeout()
 		Expect(result).Should(Exit(0))
 
-		checkpointFileName := "/tmp/checkpoint-" + cid + ".tar.gz"
+		checkpointFileName := filepath.Join(podmanTest.TempDir, "/checkpoint-"+cid+".tar.gz")
 
 		// Checkpoint the container
 		result = podmanTest.Podman([]string{"container", "checkpoint", cid, "-e", checkpointFileName})
@@ -1024,8 +1024,8 @@ var _ = Describe("Podman checkpoint", func() {
 		session.WaitWithDefaultTimeout()
 		Expect(session).Should(Exit(0))
 		cid := session.OutputToString()
-		preCheckpointFileName := "/tmp/pre-checkpoint-" + cid + ".tar.gz"
+		preCheckpointFileName := filepath.Join(podmanTest.TempDir, "/pre-checkpoint-"+cid+".tar.gz")
-		checkpointFileName := "/tmp/checkpoint-" + cid + ".tar.gz"
+		checkpointFileName := filepath.Join(podmanTest.TempDir, "/checkpoint-"+cid+".tar.gz")
 
 		result := podmanTest.Podman([]string{"container", "checkpoint", "-P", "-e", preCheckpointFileName, cid})
 		result.WaitWithDefaultTimeout()
@@ -1066,7 +1066,7 @@ var _ = Describe("Podman checkpoint", func() {
 		session.WaitWithDefaultTimeout()
 		Expect(session).Should(Exit(0))
 		cid := session.OutputToString()
-		fileName := "/tmp/checkpoint-" + cid + ".tar.gz"
+		fileName := filepath.Join(podmanTest.TempDir, "/checkpoint-"+cid+".tar.gz")
 
 		if !WaitContainerReady(podmanTest, cid, "Ready to accept connections", 20, 1) {
 			Fail("Container failed to get ready")
@@ -1167,7 +1167,7 @@ var _ = Describe("Podman checkpoint", func() {
 			Expect(session).To(Exit(0))
 			cid := session.OutputToString()
 
-			fileName := "/tmp/checkpoint-" + cid + ".tar.gz"
+			fileName := filepath.Join(podmanTest.TempDir, "/checkpoint-"+cid+".tar.gz")
 
 			// Checkpoint the container
 			result := podmanTest.Podman([]string{
@@ -1286,7 +1286,7 @@ var _ = Describe("Podman checkpoint", func() {
 		Expect(session).Should(Exit(0))
 		Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
 		cid := session.OutputToString()
-		fileName := "/tmp/checkpoint-" + cid + ".tar.gz"
+		fileName := filepath.Join(podmanTest.TempDir, "/checkpoint-"+cid+".tar.gz")
 
 		result := podmanTest.Podman([]string{"container", "checkpoint", cid, "-e", fileName})
 		result.WaitWithDefaultTimeout()
@@ -1326,7 +1326,7 @@ var _ = Describe("Podman checkpoint", func() {
 		Expect(session).Should(Exit(0))
 		Expect(podmanTest.NumberOfContainersRunning()).To(Equal(1))
 		cid := session.OutputToString()
-		fileName := "/tmp/checkpoint-" + cid + ".tar.gz"
+		fileName := filepath.Join(podmanTest.TempDir, "/checkpoint-"+cid+".tar.gz")
 
 		result := podmanTest.Podman([]string{
 			"container",
@@ -1514,7 +1514,7 @@ var _ = Describe("Podman checkpoint", func() {
 		Expect(session).Should(Exit(0))
 		runtime := session.OutputToString()
 
-		fileName := "/tmp/checkpoint-" + cid + ".tar.gz"
+		fileName := filepath.Join(podmanTest.TempDir, "/checkpoint-"+cid+".tar.gz")
 
 		result := podmanTest.Podman([]string{
 			"container",
@@ -1616,7 +1616,7 @@ var _ = Describe("Podman checkpoint", func() {
 		Expect(session).Should(Exit(0))
 		Expect(session.OutputToString()).To(Equal("runc"))
 
-		checkpointExportPath := "/tmp/checkpoint-" + cid + ".tar.gz"
+		checkpointExportPath := filepath.Join(podmanTest.TempDir, "/checkpoint-"+cid+".tar.gz")
 
 		session = podmanTest.Podman([]string{"container", "checkpoint", cid, "-e", checkpointExportPath})
 		session.WaitWithDefaultTimeout()
@@ -1685,7 +1685,7 @@ var _ = Describe("Podman checkpoint", func() {
 		Expect(session).Should(Exit(0))
 		runtime := session.OutputToString()
 
-		fileName := "/tmp/checkpoint-" + cid + ".tar.gz"
+		fileName := filepath.Join(podmanTest.TempDir, "/checkpoint-"+cid+".tar.gz")
 
 		result := podmanTest.Podman([]string{
 			"container",
@@ -1769,7 +1769,7 @@ var _ = Describe("Podman checkpoint", func() {
 		Expect(session).Should(Exit(0))
 		runtime := session.OutputToString()
 
-		checkpointFileName := "/tmp/checkpoint-" + cid + ".tar.gz"
+		checkpointFileName := filepath.Join(podmanTest.TempDir, "/checkpoint-"+cid+".tar.gz")
 		result = podmanTest.Podman([]string{"container", "checkpoint", cid, "-e", checkpointFileName})
 		result.WaitWithDefaultTimeout()
 

test/e2e/common_test.go

@@ -111,7 +111,7 @@ var _ = SynchronizedBeforeSuite(func() []byte {
 	// Cache images
 	cwd, _ := os.Getwd()
 	INTEGRATION_ROOT = filepath.Join(cwd, "../../")
-	podman := PodmanTestSetup("/tmp")
+	podman := PodmanTestSetup(os.TempDir())
 
 	// Pull cirros but don't put it into the cache
 	pullImages := []string{CIRROS_IMAGE, fedoraToolbox, volumeTest}
@@ -988,6 +988,41 @@ func (p *PodmanTestIntegration) removeNetwork(name string) {
 	Expect(session.ExitCode()).To(BeNumerically("<=", 1), "Exit code must be 0 or 1")
 }
 
+// generatePolicyFile generates a signature verification policy file.
+// it returns the policy file path.
+func generatePolicyFile(tempDir string) string {
+	keyPath := filepath.Join(tempDir, "key.gpg")
+	policyPath := filepath.Join(tempDir, "policy.json")
+	conf := fmt.Sprintf(`
+{
+    "default": [
+        {
+            "type": "insecureAcceptAnything"
+        }
+    ],
+    "transports": {
+        "docker": {
+            "localhost:5000": [
+                {
+                    "type": "signedBy",
+                    "keyType": "GPGKeys",
+                    "keyPath": "%s"
+                }
+            ],
+            "localhost:5000/sigstore-signed": [
+                {
+                    "type": "sigstoreSigned",
+                    "keyPath": "testdata/sigstore-key.pub"
+                }
+            ]
+        }
+    }
+}
+`, keyPath)
+	writeConf([]byte(conf), policyPath)
+	return policyPath
+}
+
 func (s *PodmanSessionIntegration) jq(jqCommand string) (string, error) {
 	var out bytes.Buffer
 	cmd := exec.Command("jq", jqCommand)

test/e2e/mount_rootless_test.go

@@ -57,11 +57,12 @@ var _ = Describe("Podman mount", func() {
 		opts := podmanTest.PodmanMakeOptions([]string{"mount", cid}, false, false)
 		args = append(args, opts...)
 
-		// container root file system location is /tmp/... because "--root /tmp/..."
+		// container root file system location is podmanTest.TempDir/...
+		// because "--root podmanTest.TempDir/..."
 		session := podmanTest.Podman(args)
 		session.WaitWithDefaultTimeout()
 		Expect(session).Should(Exit(0))
-		Expect(session.OutputToString()).To(ContainSubstring("/tmp"))
+		Expect(session.OutputToString()).To(ContainSubstring(podmanTest.TempDir))
 	})
 
 	It("podman image mount", func() {
@@ -83,10 +84,10 @@ var _ = Describe("Podman mount", func() {
 		opts := podmanTest.PodmanMakeOptions([]string{"image", "mount", ALPINE}, false, false)
 		args = append(args, opts...)
 
-		// image location is /tmp/... because "--root /tmp/..."
+		// image location is podmanTest.TempDir/... because "--root podmanTest.TempDir/..."
 		session := podmanTest.Podman(args)
 		session.WaitWithDefaultTimeout()
 		Expect(session).Should(Exit(0))
-		Expect(session.OutputToString()).To(ContainSubstring("/tmp"))
+		Expect(session.OutputToString()).To(ContainSubstring(podmanTest.TempDir))
 	})
 })

test/e2e/push_test.go

@@ -139,9 +139,10 @@ var _ = Describe("Podman push", func() {
 
 		if !IsRemote() { // Remote does not support --digestfile
 			// Test --digestfile option
-			push2 := podmanTest.Podman([]string{"push", "--tls-verify=false", "--digestfile=/tmp/digestfile.txt", "--remove-signatures", ALPINE, "localhost:5000/my-alpine"})
+			digestFile := filepath.Join(podmanTest.TempDir, "digestfile.txt")
+			push2 := podmanTest.Podman([]string{"push", "--tls-verify=false", "--digestfile=" + digestFile, "--remove-signatures", ALPINE, "localhost:5000/my-alpine"})
 			push2.WaitWithDefaultTimeout()
-			fi, err := os.Lstat("/tmp/digestfile.txt")
+			fi, err := os.Lstat(digestFile)
 			Expect(err).ToNot(HaveOccurred())
 			Expect(fi.Name()).To(Equal("digestfile.txt"))
 			Expect(push2).Should(Exit(0))
@@ -162,6 +163,9 @@ var _ = Describe("Podman push", func() {
 					err := os.Remove(systemRegistriesDAddition)
 					Expect(err).ToNot(HaveOccurred())
 				}()
+				// Generate a signature verification policy file
+				policyPath := generatePolicyFile(podmanTest.TempDir)
+				defer os.Remove(policyPath)
 
 				// Verify that the policy rejects unsigned images
 				push := podmanTest.Podman([]string{"push", "-q", "--tls-verify=false", "--remove-signatures", ALPINE, "localhost:5000/sigstore-signed"})
@@ -169,7 +173,7 @@ var _ = Describe("Podman push", func() {
 				Expect(push).Should(Exit(0))
 				Expect(push.ErrorToString()).To(BeEmpty())
 
-				pull := podmanTest.Podman([]string{"pull", "-q", "--tls-verify=false", "--signature-policy", "sign/policy.json", "localhost:5000/sigstore-signed"})
+				pull := podmanTest.Podman([]string{"pull", "-q", "--tls-verify=false", "--signature-policy", policyPath, "localhost:5000/sigstore-signed"})
 				pull.WaitWithDefaultTimeout()
 				Expect(pull).To(ExitWithError())
 				Expect(pull.ErrorToString()).To(ContainSubstring("A signature was required, but no signature exists"))
@@ -180,7 +184,7 @@ var _ = Describe("Podman push", func() {
 				Expect(push).Should(Exit(0))
 				Expect(push.ErrorToString()).To(BeEmpty())
 
-				pull = podmanTest.Podman([]string{"pull", "-q", "--tls-verify=false", "--signature-policy", "sign/policy.json", "localhost:5000/sigstore-signed"})
+				pull = podmanTest.Podman([]string{"pull", "-q", "--tls-verify=false", "--signature-policy", policyPath, "localhost:5000/sigstore-signed"})
 				pull.WaitWithDefaultTimeout()
 				Expect(pull).Should(Exit(0))
 			}

test/e2e/save_test.go

@@ -185,8 +185,11 @@ var _ = Describe("Podman save", func() {
 			Expect(err).ToNot(HaveOccurred())
 		}()
 
-		cmd = exec.Command("cp", "sign/key.gpg", "/tmp/key.gpg")
+		keyPath := filepath.Join(podmanTest.TempDir, "key.gpg")
+		cmd = exec.Command("cp", "sign/key.gpg", keyPath)
 		Expect(cmd.Run()).To(Succeed())
+		defer os.Remove(keyPath)
+
 		sigstore := `
 default-docker:
   sigstore: file:///var/lib/containers/sigstore
@@ -207,7 +210,11 @@ default-docker:
 		Expect(session).Should(Exit(0))
 
 		if !IsRemote() {
-			session = podmanTest.Podman([]string{"pull", "--tls-verify=false", "--signature-policy=sign/policy.json", "localhost:5000/alpine"})
+			// Generate a signature verification policy file
+			policyPath := generatePolicyFile(podmanTest.TempDir)
+			defer os.Remove(policyPath)
+
+			session = podmanTest.Podman([]string{"pull", "--tls-verify=false", "--signature-policy", policyPath, "localhost:5000/alpine"})
 			session.WaitWithDefaultTimeout()
 			Expect(session).Should(Exit(0))
 

test/e2e/sign/policy.json

@@ -1,24 +0,0 @@
-{
-    "default": [
-        {
-            "type": "insecureAcceptAnything"
-        }
-    ],
-    "transports": {
-        "docker": {
-            "localhost:5000": [
-                {
-                    "type": "signedBy",
-                    "keyType": "GPGKeys",
-                    "keyPath": "/tmp/key.gpg"
-                }
-            ],
-            "localhost:5000/sigstore-signed": [
-                {
-                    "type": "sigstoreSigned",
-                    "keyPath": "testdata/sigstore-key.pub"
-                }
-            ]
-        }
-    }
-}