podman/docs/source/markdown/podman-image-diff.1.md

% podman-image-diff 1

NAME

podman-image-diff - Inspect changes on an image's filesystem

SYNOPSIS

podman image diff [options] image [image]

DESCRIPTION

Displays changes on an image's filesystem. The image is compared to its parent layer or the second argument when given.

The output is prefixed with the following symbols:

Symbol	Description
A	A file or directory was added.
D	A file or directory was deleted.
C	A file or directory was changed.

OPTIONS

--format

Alter the output into a different format. The only valid format for podman image diff is json.

EXAMPLE

Display image differences from images parent layer:

$ podman image diff redis:old
C /usr
C /usr/local
C /usr/local/bin
A /usr/local/bin/docker-entrypoint.sh

Display image differences between two different images in JSON format:

$ podman image diff --format json redis:old redis:alpine
{
  "changed": [
    "/usr",
    "/usr/local",
    "/usr/local/bin"
  ],
  "added": [
    "/usr/local/bin/docker-entrypoint.sh"
  ]
}

SEE ALSO

podman(1), podman-image(1)

HISTORY

August 2017, Originally compiled by Ryan Cole rycole@redhat.com