Add podman manifest create -a. Alias for --amend:Docker compatibility

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>

3 files changed, 19 insertions, 13 deletions

diff --git a/cmd/podman/manifest/create.go b/cmd/podman/manifest/create.go
index 0a0ea1d88..2ea40d832 100644
--- a/cmd/podman/manifest/create.go
+++ b/cmd/podman/manifest/create.go
@@ -42,7 +42,7 @@ func init() {
 	})
 	flags := createCmd.Flags()
 	flags.BoolVar(&manifestCreateOpts.All, "all", false, "add all of the lists' images if the images to add are lists")
-	flags.BoolVar(&manifestCreateOpts.Amend, "amend", false, "modify an existing list if one with the desired name already exists")
+	flags.BoolVarP(&manifestCreateOpts.Amend, "amend", "a", false, "modify an existing list if one with the desired name already exists")
 	flags.BoolVar(&manifestCreateOpts.Insecure, "insecure", false, "neither require HTTPS nor verify certificates when accessing the registry")
 	_ = flags.MarkHidden("insecure")
 	flags.BoolVar(&manifestCreateOpts.TLSVerifyCLI, "tls-verify", true, "require HTTPS and verify certificates when accessing the registry")
diff --git a/docs/source/markdown/podman-manifest-create.1.md b/docs/source/markdown/podman-manifest-create.1.md
index f2aac6069..06a24da2b 100644
--- a/docs/source/markdown/podman-manifest-create.1.md
+++ b/docs/source/markdown/podman-manifest-create.1.md
@@ -22,7 +22,7 @@ If any of the images which should be added to the new list or index are
 themselves lists or indexes, add all of their contents.  By default, only one
 image from such a list will be added to the newly-created list or index.
 
-#### **--amend**
+#### **--amend**, **-a**
 
 If a manifest list named *listnameorindexname* already exists, modify the
 preexisting list instead of exiting with an error.  The contents of
diff --git a/test/e2e/manifest_test.go b/test/e2e/manifest_test.go
index 145a016ea..1c4aad710 100644
--- a/test/e2e/manifest_test.go
+++ b/test/e2e/manifest_test.go
@@ -46,17 +46,23 @@ var _ = Describe("Podman manifest", func() {
 		processTestResult(f)
 	})
 	It("create w/o image", func() {
-		session := podmanTest.Podman([]string{"manifest", "create", "foo"})
-		session.WaitWithDefaultTimeout()
-		Expect(session).Should(Exit(0))
-
-		session = podmanTest.Podman([]string{"manifest", "create", "foo"})
-		session.WaitWithDefaultTimeout()
-		Expect(session).To(ExitWithError())
-
-		session = podmanTest.Podman([]string{"manifest", "create", "--amend", "foo"})
-		session.WaitWithDefaultTimeout()
-		Expect(session).Should(Exit(0))
+		for _, amend := range []string{"--amend", "-a"} {
+			session := podmanTest.Podman([]string{"manifest", "create", "foo"})
+			session.WaitWithDefaultTimeout()
+			Expect(session).Should(Exit(0))
+
+			session = podmanTest.Podman([]string{"manifest", "create", "foo"})
+			session.WaitWithDefaultTimeout()
+			Expect(session).To(ExitWithError())
+
+			session = podmanTest.Podman([]string{"manifest", "create", amend, "foo"})
+			session.WaitWithDefaultTimeout()
+			Expect(session).Should(Exit(0))
+
+			session = podmanTest.Podman([]string{"manifest", "rm", "foo"})
+			session.WaitWithDefaultTimeout()
+			Expect(session).Should(Exit(0))
+		}
 	})
 
 	It("create w/ image", func() {