Files
skopeo/docs/buildah-from.md
Urvashi Mohnani 7a3bc6efd4 Use credentials from kpod login for buildah
buildah push and from now use the credentials stored in ${XDG_RUNTIME_DIR}/containers/auth.json by kpod login
if the auth file path is changed, buildah push and from can get the credentials from the custom auth file
using the --authfile flag
e.g buildah push --authfile /tmp/auths/myauths.json alpine docker://username/image

Signed-off-by: Urvashi Mohnani <umohnani@redhat.com>

Closes: #325
Approved by: rhatdan
2017-11-16 18:08:52 +00:00

3.4 KiB

buildah-from "1" "March 2017" "buildah"

NAME

buildah from - Creates a new working container, either from scratch or using a specified image as a starting point.

SYNOPSIS

buildah from [options [...]] imageName

DESCRIPTION

Creates a working container based upon the specified image name. If the supplied image name is "scratch" a new empty container is created. Image names uses a "transport":"details" format.

Multiple transports are supported:

dir:path An existing local directory path retrieving the manifest, layer tarballs and signatures as individual files. This is a non-standardized format, primarily useful for debugging or noninvasive container inspection.

docker://docker-reference (Default) An image in a registry implementing the "Docker Registry HTTP API V2". By default, uses the authorization state in $XDG_RUNTIME_DIR/containers/auth.json, which is set e.g. using (kpod login).

docker-archive:path An image is retrieved as a docker load formatted file.

docker-daemon:docker-reference An image docker-reference stored in the docker daemon internal storage. docker-reference must contain either a tag or a digest. Alternatively, when reading images, the format can also be docker-daemon:algo:digest (an image ID).

oci:path:tag An image tag in a directory compliant with "Open Container Image Layout Specification" at path.

ostree:image[@/absolute/repo/path] An image in local OSTree repository. /absolute/repo/path defaults to /ostree/repo.

RETURN VALUE

The container ID of the container that was created. On error, -1 is returned and errno is returned.

OPTIONS

--authfile path

Path of the authentication file. Default is ${XDG_RUNTIME_DIR}/containers/auth.json which is set using kpod login

--cert-dir path

Use certificates at path (*.crt, *.cert, *.key) to connect to the registry

--creds creds

The username[:password] to use to authenticate with the registry if required.

--name name

A name for the working container

--pull

Pull the image if it is not present. If this flag is disabled (with --pull=false) and the image is not present, the image will not be pulled. Defaults to true.

--pull-always

Pull the image even if a version of the image is already present.

--quiet

If an image needs to be pulled from the registry, suppress progress output.

--signature-policy signaturepolicy

Pathname of a signature policy file to use. It is not recommended that this option be used, as the default behavior of using the system-wide default policy (frequently /etc/containers/policy.json) is most often preferred.

--tls-verify bool-value

Require HTTPS and verify certificates when talking to container registries (defaults to true)

EXAMPLE

buildah from imagename --pull

buildah from docker://myregistry.example.com/imagename --pull

buildah from imagename --signature-policy /etc/containers/policy.json

buildah from docker://myregistry.example.com/imagename --pull-always --name "mycontainer"

buildah from myregistry/myrepository/imagename:imagetag --tls-verify=false

buildah from myregistry/myrepository/imagename:imagetag --creds=myusername:mypassword --cert-dir ~/auth

buildah from myregistry/myrepository/imagename:imagetag --authfile=/tmp/auths/myauths.json

SEE ALSO

buildah(1) kpod-login(1)