| podman-container-runlabel(1)() | podman-container-runlabel(1)() |
podman-container-runlabel - Executes a command as described by a container image label
podman container runlabel [options] label image [arg...]
podman container runlabel reads the provided LABEL field in the container IMAGE and executes the provided value for the label as a command. If this field does not exist, podman container runlabel will just exit.
If the container image has a LABEL INSTALL instruction like the following:
LABEL INSTALL /usr/bin/podman run -t -i --rm \${OPT1} --privileged -v /:/host --net=host --ipc=host --pid=host -e HOST=/host -e NAME=\${NAME} -e IMAGE=\${IMAGE} -e CONFDIR=\/etc/${NAME} -e LOGDIR=/var/log/\${NAME} -e DATADIR=/var/lib/\${NAME} \${IMAGE} \${OPT2} /bin/install.sh \${OPT3}
podman container runlabel will set the following environment variables for use in the command:
If the container image does not have the desired label, an error message will be displayed along with a non-zero return code. If the image is not found in local storage, Podman will attempt to pull it first.
LABEL The label name specified via the command.
IMAGE Image name specified via the command.
SUDO_UID The SUDO_UID environment variable. This is useful with the podman -u option for user space tools. If the environment variable is not available, the value of /proc/self/loginuid is used.
SUDO_GID The SUDO_GID environment variable. This is useful with the podman -u option for user space tools. If the environment variable is not available, the default GID of the value for SUDO_UID is used. If this value is not available, the value of /proc/self/loginuid is used.
Any additional arguments will be appended to the command.
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: You can also override the default path of the authentication file by setting the REGISTRY_AUTH_FILE environment variable. export REGISTRY_AUTH_FILE=path
Display the label's value of the image having populated its environment variables. The runlabel command will not execute if --display is specified.
Use certificates at path (*.crt, *.cert, *.key) to connect to the registry. Default certificates directory is /etc/containers/certs.d. (Not available for remote commands)
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.
Print usage statement
Use this name for creating content for the container. NAME will default to the IMAGENAME if it is not specified.
Suppress output information when pulling images
If a container exists of the default or given name, as needed it will be stopped, deleted and a new container will be created from this image.
Require HTTPS and verify certificates when contacting registries (default: true). If explicitly set to true, then TLS verification will be used. If set to false, then 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 registries.conf.
Execute the run label of an image called foobar.
$ sudo podman container runlabel run foobar
Execute the install label of an image called foobar with additional arguments.
$ sudo podman container runlabel install foobar apples oranges
Display the command that would be executed by runlabel.
$ sudo podman container runlabel --display run foobar
September 2018, Originally compiled by Brent Baude (bbaude at redhat dot com)