simple_example.sh

#!/bin/bash
# SPDX-License-Identifier: (LGPL-2.1 OR LGPL-3.0)
# Copyright (C) SUSE LLC 2018-2021, all rights reserved.

RAPIDO_DIR="$(realpath -e ${0%/*})/.."
. "${RAPIDO_DIR}/runtime.vars"

# The job of Rapido cut scripts is to generate a VM image. This is done using
# Dracut with a number of parameters...

# Call _rt_require_dracut_args() providing script paths that will be included
# and run on VM boot. It exports variables used in the dracut invocation below.
_rt_require_dracut_args "$RAPIDO_DIR/autorun/simple_example.sh" "$@"

# _rt_require_networking() flags that VMs using this image should have a network
# adapter. Binaries and configuration required for networking are appended to
# DRACUT_RAPIDO_ARGS.
#_rt_require_networking

# VMs are booted with 2 vCPUs and 512M RAM by default. These defaults can be
# changed, e.g. 1 vCPU + 1G RAM could be specified via:
#_rt_cpu_resources_set 1
#_rt_mem_resources_set 1G

# --install provides a list of binaries that should be included in the VM image.
# Dracut will resolve shared object dependencies and add them automatically.

# --include copies a specific file or directory to the given image destination.

# --add-drivers provides a list of kernel modules, which will be obtained from
# the rapido.conf KERNEL_INSTALL_MOD_PATH

# --modules provides a list of *Dracut* modules. See Dracut documentation for
# details
"$DRACUT" \
	--install "resize ps rmdir dd mkfs.xfs" \
	--add-drivers "zram lzo lzo-rle" \
	--modules "base" \
	"${DRACUT_RAPIDO_ARGS[@]}" \
	"$DRACUT_OUT" || _fail "dracut failed"