podman-pull

NAME

podman-pull - Pull an image from a registry

SYNOPSIS

podman pull [options] source [source...] podman image pull [options] source [source...] podman pull [options] [transport]name[:tag|@digest] podman image pull [options] [transport]name[:tag|@ digest]

DESCRIPTION

podman pull copies an image from a registry onto the local machine. The command can pull one or more images. If the image reference in the command line argument does not contain a registry, it is referred to as a short-name reference. If the image is a 'short-name' reference, Podman will prompt the user for the specific container registry to pull the image from, if an alias for the short-name has not been specified in the short-name-aliases.conf. If an image tag is not specified, podman pull defaults to the image with the latest tag (if it exists) and pulls it. After the image is pulled, podman will print the full image ID. podman pull can also pull images using a digest podman pull image@ digest and can also be used to pull images from archives and local storage using different transports. IMPORTANT: Images are stored in local image storage.

SOURCE

SOURCE is the location from which the container image is pulled from. It supports all transports from containers-transports(5). If no transport is specified, the input is subject to short-name resolution and the docker (i.e., container registry) transport is used. For remote clients, including Mac and Windows (excluding WSL2) machines, docker is the only supported transport.

OPTIONS

--all-tags, -a

All tagged images in the repository will be pulled. *IMPORTANT: When using the all-tags flag, Podman will not iterate over the search registries in the containers-registries.conf(5) but will always use docker.io for unqualified image names.*

--arch=ARCH

Override the architecture, defaults to hosts, of the image to be pulled. For example, arm. Unless overridden, subsequent lookups of the same image in the local storage will match this architecture, regardless of the host.

--authfile=path

Path of the authentication file. Default is ${XDG_RUNTIME_DIR}/containers/auth.json, which is set using podman login. If the authorization state is not found there, $HOME/.docker/config.json is checked, which is set using docker login. Note: There is also the option to override the default path of the authentication file by setting the REGISTRY_AUTH_FILE environment variable. This can be done with export REGISTRY_AUTH_FILE=path.

--cert-dir=path

Use certificates at path (*.crt, *.cert, *.key) to connect to the registry. (Default: /etc/containers/certs.d) Please refer to containers-certs.d(5) for details. (This option is not available with the remote Podman client, including Mac and Windows (excluding WSL2) machines)

--creds=[username[:password]]

The [username[:password]] to use to authenticate with the registry, if required. If one or both values are not supplied, a command line prompt will appear and the value can be entered. The password is entered without echo.

--disable-content-trust

This is a Docker-specific option to disable image verification to a container registry and is not supported by Podman. This option is a NOOP and provided solely for scripting compatibility.

--help, -h

Print the usage statement.

--os=OS

Override the OS, defaults to hosts, of the image to be pulled. For example, windows. Unless overridden, subsequent lookups of the same image in the local storage will match this OS, regardless of the host.

--platform=OS/ARCH

Specify the platform for selecting the image. (Conflicts with --arch and --os) The --platform option can be used to override the current architecture and operating system. Unless overridden, subsequent lookups of the same image in the local storage will match this platform, regardless of the host.

--quiet, -q

Suppress output information when pulling images

--tls-verify

Require HTTPS and verify certificates when contacting registries (default: true). If explicitly set to true, TLS verification will be used. If set to false, TLS verification will not be used. If not specified, TLS verification will be used unless the target registry is listed as an insecure registry in containers-registries.conf(5)

--variant=VARIANT

Use VARIANT instead of the default architecture variant of the container image. Some images can use multiple variants of the arm architectures, such as arm/v5 and arm/v7.

FILES

short-name-aliases.conf (/var/cache/containers/short-name-aliases.conf, $HOME/.cache/containers/short-name-aliases.conf) When users specify images that do not include the container registry where the image is stored, this is called a short name. The use of unqualified-search registries entails an ambiguity as it is unclear from which registry a given image, referenced by a short name, may be pulled from. Using short names is subject to the risk of hitting squatted registry namespaces. If the unqualified-search registries are set to ["public-registry.com", "my-private-registry.com"] an attacker may take over a namespace of public-registry.com such that an image may be pulled from public-registry.com instead of the intended source my-private-registry.com. While it is highly recommended to always use fully-qualified image references, existing deployments using short names may not be easily changed. To circumvent the aforementioned ambiguity, so called short-name aliases can be configured that point to a fully-qualified image reference. Distributions often ship a default shortnames.conf expansion file in /etc/containers/registries.conf.d/ directory. Administrators can use this directory to add their own local short-name expansion files. When pulling an image, if the user does not specify the complete registry, container engines attempt to expand the short-name into a full name. If the command is executed with a tty, the user will be prompted to select a registry from the default list unqualified registries defined in registries.conf. The user's selection is then stored in a cache file to be used in all future short-name expansions. Rootful short-names are stored in /var/cache/containers/short-name-aliases.conf. Rootless short-names are stored in the $HOME/.cache/containers/short-name-aliases.conf file. For more information on short-names, see containers-registries.conf(5) registries.conf (/etc/containers/registries.conf) registries.conf is the configuration file which specifies which container registries should be consulted when completing image names which do not include a registry or domain portion. NOTE: Use the environment variable TMPDIR to change the temporary storage location of downloaded container images. Podman defaults to use /var/tmp.

EXAMPLES

Pull a single image with short name resolution. Pull multiple images with/without short name resolution. Pull an image using its digest. Pull an image by specifying an authentication file. Pull an image by authenticating to a registry. Pull an image using tls verification. Pull an image by overriding the host architecture.

SEE ALSO

podman(1), podman-push(1), podman-login(1), containers-certs.d(5), containers-registries.conf(5), containers-transports(5)

HISTORY

July 2017, Originally compiled by Urvashi Mohnani [email protected] ⟨mailto:[email protected]⟩