Ubuntu Manpage: podman-commit - Create new image based on the changed container

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NAME

       podman-commit - Create new image based on the changed container

SYNOPSIS

       podman commit [options] container [image]

       podman container commit [options] container [image]

DESCRIPTION

       podman commit creates an image based on a changed container. The author of the image can be set using the
       --author OPTION. Various image instructions can be configured with  the  --change  OPTION  and  a  commit
       message  can  be  set using the --message OPTION. The container and its processes aren't paused while the
       image is committed. If this is not desired, the --pause OPTION can be set to true.  When  the  commit  is
       complete, Podman prints out the ID of the new image.

       If  image does not begin with a registry name component, localhost is added to the name.  If image is not
       provided, the values for the REPOSITORY and TAG values of the created image is set to <none>.

OPTIONS

--author, -a=author
Set the author for the committed image.

--change, -c=instruction
Apply the following possible instructions to the created image:

• CMD

• ENTRYPOINT

• ENV

• EXPOSE

• LABEL

• ONBUILD

• STOPSIGNAL

• USER

• VOLUME

• WORKDIR

Can be set multiple times.

--config=ConfigBlobFile
Merge the container configuration from the specified file into the configuration for the image as it is
being committed. The file contents should be a JSON-encoded version of a Schema2Config structure, which
is defined at https://github.com/containers/image/blob/v5.29.0/manifest/docker_schema2.go#L67.

--format, -f=oci | docker
Set the format of the image manifest and metadata. The currently supported formats are oci and docker.
The default is oci.

--iidfile=ImageIDfile
Write the image ID to the file.

--include-volumes
Include in the committed image any volumes added to the container by the --volume or --mount OPTIONS to
the podman create and podman run commands.
The default is false.

--message, -m=message
Set commit message for committed image.
IMPORTANT: The message field is not supported in oci format.

--pause, -p
Pause the container when creating an image.
The default is false.

--quiet, -q
Suppresses output.
The default is false.

--squash, -s
Squash newly built layers into a single new layer.
The default is false.

EXAMPLES

       Create image from container with entrypoint and label:

       $ podman commit --change CMD=/bin/bash --change ENTRYPOINT=/bin/sh --change "LABEL blue=image" reverent_golick image-committed
       Getting image source signatures
       Copying blob sha256:b41deda5a2feb1f03a5c1bb38c598cbc12c9ccd675f438edc6acd815f7585b86
        25.80 MB / 25.80 MB [======================================================] 0s
       Copying config sha256:c16a6d30f3782288ec4e7521c754acc29d37155629cb39149756f486dae2d4cd
        448 B / 448 B [============================================================] 0s
       Writing manifest to image destination
       Storing signatures
       e3ce4d93051ceea088d1c242624d659be32cf1667ef62f1d16d6b60193e2c7a8

       Create image from container with commit message:

       $ podman commit -q --message "committing container to image"
       reverent_golick image-committed
       e3ce4d93051ceea088d1c242624d659be32cf1667ef62f1d16d6b60193e2c7a8

       Create image from container with author:

       $ podman commit -q --author "firstName lastName" reverent_golick image-committed
       e3ce4d93051ceea088d1c242624d659be32cf1667ef62f1d16d6b60193e2c7a8

       Pause running container while creating image:

       $ podman commit -q --pause=true containerID image-committed
       e3ce4d93051ceea088d1c242624d659be32cf1667ef62f1d16d6b60193e2c7a8

       Create image from container with default image tag:

       $ podman commit containerID
       e3ce4d93051ceea088d1c242624d659be32cf1667ef62f1d16d6b60193e2c7a8

       Create image from container with default required capabilities:

       $ podman commit -q --change LABEL=io.containers.capabilities=setuid,setgid epic_nobel privimage
       400d31a3f36dca751435e80a0e16da4859beb51ff84670ce6bdc5edb30b94066

HISTORY

       December 2017, Originally compiled by Urvashi Mohnani umohnani@redhat.com ⟨mailto:umohnani@redhat.com⟩

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