diskimage-builder/diskimage_builder/elements/gentoo
Matthew Thode bea81bd234
update gentoo to allow building arm64 images
Adds:

1. grub-efi package mappings
2. efi-64 support
3. default (openrc) arm64 profile
4. systemd arm64 profile

Cleans up the keywords and use flags in 02-gentoo-02-flags.  Most stuff
was stablized.  Also cleaned up some formatting for the if statements.

Enables less trusted overlays (up to the end user to verify).

in 10-gentoo-image I cleaned up some bash lint things as well.
using && instead of -a and avoiding $?

Change-Id: I3dffe1aab4bbdc4946a9bf2269bf0cde49529a4e
2020-08-17 23:50:39 -05:00
..
bin fix comments / spelling errors in gentoo element 2019-07-29 08:54:16 -05:00
cleanup.d support alternate portage directories 2019-07-26 19:30:01 -05:00
environment.d allow building of Gentoo images for non-systemd profiles 2019-12-20 17:51:55 -06:00
extra-data.d update gentoo-releng gpg key 2020-07-12 17:50:00 -05:00
finalise.d support alternate portage directories 2019-07-26 19:30:01 -05:00
pre-finalise.d support alternate portage directories 2019-07-26 19:30:01 -05:00
pre-install.d update gentoo to allow building arm64 images 2020-08-17 23:50:39 -05:00
root.d update gentoo to allow building arm64 images 2020-08-17 23:50:39 -05:00
test-elements/build-succeeds
element-deps Run dib-run-parts out of /tmp 2017-04-05 13:11:22 +10:00
element-provides
package-installs.yaml use stage3 instead of stage4 for gentoo builds 2020-05-27 18:50:16 -05:00
README.rst update gentoo systemd profile to 17.1 from 17.0 2019-08-19 15:13:09 -05:00

========
Gentoo
========
Use a Gentoo cloud image as the baseline for built disk images. The images are
located in profile specific sub directories:

    http://distfiles.gentoo.org/releases/amd64/autobuilds/

As of this writing, only x86_64 images are available.

Notes:

* There are very frequently new automated builds that include changes that
  happen during the product maintenance. The download directories contain an
  unversioned name and a versioned name. The unversioned name will always
  point to the latest image, but will frequently change its content. The
  versioned one will never change content, but will frequently be deleted and
  replaced by a newer build with a higher version-release number.

* In order to run the package-installs element you will need to make sure
  `dev-python/pyyaml` is installed on the host.

* In order to run the vm element you will need to make sure `sys-block/parted`
  is installed on the host.

* Other profiles can be used by exporting GENTOO_PROFILE with a valid profile.
  A list of valid profiles follows:

    default/linux/amd64/17.1
    default/linux/amd64/17.1/no-multilib
    default/linux/amd64/17.1/hardened
    default/linux/amd64/17.1/no-multilib/hardened
    default/linux/amd64/17.1/systemd

* You can set the `GENTOO_PORTAGE_CLEANUP` environment variable to False to
  disable the clean up of portage repositories (including overlays).  This
  will make the image bigger if caching is also disabled.

* Gentoo supports many different versions of python, in order to select one
  you may use the `GENTOO_PYTHON_TARGETS` environment variable to select
  the versions of python you want on your image.  The format of this variable
  is a string as follows `"python2_7 python3_6"`.

* In addition you can select the primary python version you wish to use (that
  which will be called by running the `python` command.  The
  `GENTOO_PYTHON_ACTIVE_VERSION` is used to set that mapping.  The variable
  contents can be something like `python3.6`.

* You can enable overlays using the `GENTOO_OVERLAYS` variable.  In it you
  should put a space separated list of overlays.  The overlays must be in the
  official overlay list and must be git based.

* `GENTOO_EMERGE_ENV` is a bash array containing default environment
  variables for package install, you can override it with another bash array.

* `GENTOO_EMERGE_DEFAULT_OPTS` can be set to control the default options
  passed to emerge for all package actions, this includes operations like
  depclean and preserved-rebuild.