buildah config - Update image configuration settings.
buildah config [options [...]] containerID
Updates one or more of the settings kept for a container.
--annotation annotation
Adds an image annotation (e.g. annotation=annotation) to the image manifest of any images which will be built using the specified container.
--arch architecture
Specify the target architecture for any images which will be built using the specified container. By default, if the container was based on an image, that image's target architecture is kept, otherwise the host's architecture is recorded.
--author author
Sets contact information for the author for any images which will be built using the specified container.
--cmd command
Sets the default command to run for containers based on any images which will be built using the specified container. When used in combination with an entry point, this specifies the default parameters for the entry point.
--created-by created
Set the description of how the read-write layer created (default: "manual edits") in any images which will be created using the specified container.
--entrypoint entry
Sets the entry point for containers based on any images which will be built using the specified container.
--env var=value
Adds a value (e.g. name=value) to the environment for containers based on any images which will be built using the specified container.
--label label
Adds an image label (e.g. label=value) to the image configuration of any images which will be built using the specified container.
--os operating system
Specify the target operating system for any images which will be built using the specified container. By default, if the container was based on an image, its OS is kept, otherwise the host's OS's name is recorded.
--port port
Specifies a port to expose when running containers based on any images which will be built using the specified container.
--user user
Specify the user as whom containers based on images which will be built using the specified container should run. The user can be specified as a user name or UID, optionally followed by a group name or GID, separated by a colon (':'). If names are used, the container should include entries for those names in its /etc/passwd and /etc/group files.
--volume volume
Specifies a location in the directory tree which should be marked as a volume in any images which will be built using the specified container.
--workingdir directory
Sets the initial working directory for containers based on images which will be built using the specified container.
buildah config --author='Jane Austen' --workingdir='/etc/mycontainers' containerID
buildah(1)