manifest create,add,inspect

Implememts manifest subcommands create, add, inspect.

Signed-off-by: Qi Wang <qiwan@redhat.com>

docs/source/markdown/podman-manifest-add.1.md

@@ -0,0 +1,69 @@
+% podman-manifest-add(1)
+
+## NAME
+podman\-manifest\-add - Add an image to a manifest list or image index
+
+## SYNOPSIS
+**podman manifest add** *listnameorindexname* *imagename*
+
+## DESCRIPTION
+
+Adds the specified image to the specified manifest list or image index.
+
+## RETURN VALUE
+The list image's ID.
+
+## OPTIONS
+
+**--all**
+
+If the image which should be added to the list or index is itself a list or
+index, add all of the contents to the local list.  By default, only one image
+from such a list or index will be added to the list or index.  Combining
+*--all* with any of the other options described below is NOT recommended.
+
+**--annotation** *annotation=value*
+
+Set an annotation on the entry for the newly-added image.
+
+**--arch**
+
+Override the architecture which the list or index records as a requirement for
+the image.  If *imageName* refers to a manifest list or image index, the
+architecture information will be retrieved from it.  Otherwise, it will be
+retrieved from the image's configuration information.
+
+**--features**
+
+Specify the features list which the list or index records as requirements for
+the image.  This option is rarely used.
+
+**--os-version**
+
+Specify the OS version which the list or index records as a requirement for the
+image.  This option is rarely used.
+
+**--variant**
+
+Specify the variant which the list or index records for the image.  This option
+is typically used to distinguish between multiple entries which share the same
+architecture value, but which expect different versions of its instruction set.
+
+## EXAMPLE
+
+```
+podman manifest add mylist:v1.11 docker://fedora
+71c201d10fffdcac52968a000d85a0a016ca1c7d5473948000d3131c1773d965
+```
+
+```
+podman manifest add --all mylist:v1.11 docker://fedora
+71c201d10fffdcac52968a000d85a0a016ca1c7d5473948000d3131c1773d965
+```
+
+```
+podman manifest add --arch arm64 --variant v8 mylist:v1.11 docker://71c201d10fffdcac52968a000d85a0a016ca1c7d5473948000d3131c1773d965
+```
+
+## SEE ALSO
+podman(1), podman-manifest(1), podman-manifest-create(1), podman-manifest-inspect(1), podman-rmi(1)

docs/source/markdown/podman-manifest-create.1.md

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+% podman-manifest-create(1)
+
+## NAME
+podman\-manifest\-create - Create a manifest list or image index
+
+## SYNOPSIS
+**podman manifest create** [*options*] *listnameorindexname* [*imagename* ...]
+
+## DESCRIPTION
+
+Creates a new manifest list and stores it as an image in local storage using
+the specified name.
+
+If additional images are specified, they are added to the newly-created list or
+index.
+
+## OPTIONS
+
+**--all**
+
+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.
+
+## EXAMPLES
+
+```
+podman manifest create mylist:v1.11
+9cfd24048d5fc80903f088f1531a21bff01172abe66effa8941a4c2308dc745f
+```
+
+```
+podman manifest create mylist:v1.11 docker://fedora
+5c2bc76bfb4ba6665a7973f7e1c05ee0536b4580637f27adc9fa5a4b2bc03cf1
+```
+
+```
+podman manifest create --all mylist:v1.11 docker://fedora
+30330571e79c65288a4fca421d9aed29b0210d57294d9c2056743fdcf6e3967b
+```
+
+## SEE ALSO
+podman(1), podman-manifest(1), podman-manifest-add(1), podman-manifest-inspect(1), podman-rmi(1)

docs/source/markdown/podman-manifest-inspect.1.md

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+% podman-manifest-inspect(1)
+
+## NAME
+podman\-manifest\-inspect - Display a manifest list or image index
+
+## SYNOPSIS
+**podman manifest inspect** *listnameorindexname*
+
+## DESCRIPTION
+
+Displays the manifest list or image index stored using the specified image name.
+
+## RETURN VALUE
+
+A formatted JSON representation of the manifest list or image index.
+
+## EXAMPLES
+
+```
+podman manifest inspect mylist:v1.11
+```
+
+## SEE ALSO
+podman(1), podman-manifest(1), podman-manifest-create(1), podman-manifest-add(1), podman-rmi(1)

docs/source/markdown/podman-manifest.1.md

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+% podman-manifest(1)
+
+## NAME
+podman\-manifest - Create and manipulate manifest lists and image indexes
+
+## SYNOPSIS
+**podman manifest** *subcommand*
+
+## DESCRIPTION
+The `podman manifest` command provides subcommands which can be used to:
+
+    * Create a working Docker manifest list or OCI image index.
+
+## SUBCOMMANDS
+
+| Command  | Man Page                                                   | Description                                                                 |
+| -------  | ---------------------------------------------------------- | --------------------------------------------------------------------------- |
+| add      | [podman-manifest-add(1)](podman-manifest-add.1.md)         | Add an image to a manifest list or image index.                             |
+| create   | [podman-manifest-create(1)](podman-manifest-create.1.md)   | Create a manifest list or image index.                                      |
+| inspect  | [podman-manifest-inspect(1)](podman-manifest-inspect.1.md) | Display a manifest list or image index.                                     |
+
+## SEE ALSO
+podman(1), podman-manifest-add(1), podman-manifest-create(1), podman-manifest-inspect(1)

docs/source/markdown/podman.1.md

@@ -169,6 +169,7 @@ the exit codes follow the `chroot` standard, see below:
 | [podman-login(1)](podman-login.1.md)             | Login to a container registry.                                              |
 | [podman-logout(1)](podman-logout.1.md)           | Logout of a container registry.                                             |
 | [podman-logs(1)](podman-logs.1.md)               | Display the logs of one or more containers.                                 |
+| [podman-manifest(1)](podman-manifest.1.md)       | Create and manipulate manifest lists and image indexes.                     |
 | [podman-mount(1)](podman-mount.1.md)             | Mount a working container's root filesystem.                                |
 | [podman-network(1)](podman-network.1.md)         | Manage Podman CNI networks.                                                 |
 | [podman-pause(1)](podman-pause.1.md)             | Pause one or more containers.                                               |