2015-02-12 07:07:47 +00:00
|
|
|
Installation
|
|
|
|
|
============
|
|
|
|
|
|
2015-04-12 16:07:51 +00:00
|
|
|
Diskimage-builder can either be run directly out of the source repository or
|
|
|
|
|
installed via pip. If you plan on doing development on diskimage-builder or
|
|
|
|
|
the elements then we recommend you run the tool out of the source repository
|
|
|
|
|
as this installation requires minimal extra effort and does not require an
|
|
|
|
|
extra install step for your changes to take effect.
|
|
|
|
|
|
|
|
|
|
Once installed, you will be able to `build images <building_an_image>` using
|
|
|
|
|
disk-image-create and the elements included in the main diskimage-builder
|
|
|
|
|
repository.
|
|
|
|
|
|
2015-02-12 07:07:47 +00:00
|
|
|
|
|
|
|
|
Requirements
|
|
|
|
|
------------
|
|
|
|
|
|
2015-04-12 16:07:51 +00:00
|
|
|
Most image formats require the qemu-img tool which is provided by the
|
|
|
|
|
qemu-utils package on Ubuntu/Debian or the qemu package on
|
|
|
|
|
Fedora/RHEL/opensuse.
|
|
|
|
|
|
|
|
|
|
Some image formats, such as VHD, may require additional tools. Please see
|
|
|
|
|
the disk-image-create help output for more information.
|
|
|
|
|
|
|
|
|
|
Individual elements can also have additional dependencies for the build host.
|
|
|
|
|
It is recommended you check the documentation for each element you are using
|
|
|
|
|
to determine if there are any additional dependencies.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Source Installation
|
|
|
|
|
-------------------
|
|
|
|
|
|
|
|
|
|
Clone the diskimage-builder and dib-utils repositories locally:
|
|
|
|
|
|
|
|
|
|
::
|
|
|
|
|
|
|
|
|
|
git clone https://git.openstack.org/openstack/diskimage-builder
|
|
|
|
|
git clone https://git.openstack.org/openstack/dib-utils
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Add the bin dirs to your path:
|
|
|
|
|
|
|
|
|
|
::
|
|
|
|
|
|
|
|
|
|
export PATH=$PATH:$(pwd)/diskimage-builder/bin:$(pwd)/dib-utils/bin
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Pip Installation
|
|
|
|
|
----------------
|
|
|
|
|
|
|
|
|
|
Installing via pip is as simple as:
|
|
|
|
|
|
|
|
|
|
::
|
|
|
|
|
|
|
|
|
|
pip install diskimage-builder
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Speedups
|
|
|
|
|
--------
|
|
|
|
|
|
|
|
|
|
If you have 4GB of available physical RAM (As reported by /proc/meminfo
|
|
|
|
|
MemTotal), or more, diskimage-builder will create a tmpfs mount to build the
|
|
|
|
|
image in. This will improve image build time by building in RAM.
|
2015-02-12 07:07:47 +00:00
|
|
|
This can be disabled completely by passing --no-tmpfs to disk-image-create.
|
|
|
|
|
ramdisk-image-create builds a regular image and then within that does ramdisk
|
|
|
|
|
creation. If tmpfs is not used, you will need enough room in /tmp to store two
|
|
|
|
|
uncompressed cloud images. If you do have tmpfs, you will still need /tmp space
|
|
|
|
|
for one uncompressed cloud image and about 20% of that for working files.
|
|
|
|
|
|
