diskimage-builder/doc/source/developer/components.rst

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Components
==========
`disk-image-create [-a i386|amd64|armhf|arm64] -o filename {element} [{element} ...]`
Create an image of element {element}, optionally mixing in other elements.
Element dependencies are automatically included. Support for other
architectures depends on your environment being able to run binaries of
that platform and/or packages being available for the architecture. For
instance, to enable armhf on Ubuntu install the qemu-user-static package,
or to enable arm64 on CentOS setup the RDO aarch64 package repositories.
The default output format from disk-image-create is qcow2. To instead
output a tarball pass in "-t tar". This tarball could then be used as an
image for a linux container(see docs/docker.md).
`ramdisk-image-create -o filename {element} [{element} ...]`
Create a kernel+ ramdisk pair for running maintenance on bare metal
machines (deployment, inventory, burnin etc).
To generate kernel+ramdisk pair for use with nova-baremetal, use::
ramdisk-image-create -o deploy.ramdisk deploy-baremetal
To generate kernel+ramdisk pair for use with ironic, use::
ramdisk-image-create -o deploy.ramdisk ironic-agent
`element-info`
Extract information about elements.
`tests/run_functests.sh`
This runs a set of functional tests for diskimage-builder.
elements can be found in the top level elements directory.