diskimage-builder/elements/dpkg/README.md
Clark Boylan bab9595524 Use DIB_IMAGE_CACHE in dpkg element
The dpkg element was hardcoding ~/.cache/image-create as the cache path,
but elements should use DIB_IMAGE_CACHE as the root for the cache to
allow users to override the path. Replace the hardcoded path with one
that is rooted at $DIB_IMAGE_CACHE.

Change-Id: I76030654e7dfc7b7d4dfa87e082c14e7cee479b9
2015-01-13 14:22:10 -08:00

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Markdown

Provide dpkg specific image building glue.
The ubuntu element needs customisations at the start and end of the image build
process that do not apply to RPM distributions, such as using the host machine
HTTP proxy when installing packages. These customisations live here, where they
can be used by any dpkg based element.
The dpkg specific version of install-packages is also kept here.
### Environment Variables ###
* DIB\_ADD\_APT\_KEYS: If an extra or updated apt key is needed then define
DIB\_ADD\_APT\_KEYS with the path to a folder. Any key files inside will be
added to the key ring before any apt-get commands take place.
* DIB\_APT\_LOCAL\_CACHE: You can use this variable to disable the internal cache
of the /var/cache/apt/archives directory by setting it to 0. The default is to bind
mount the $DIB_IMAGE_CACHE/apt/$DISTRO_NAME directory in
/var/cache/apt/archives, this to cache the .deb files downloaded during the image
creation.