diskimage-builder/diskimage_builder/elements/local-config/install.d/62-ssh-key
Ian Wienand 97c01e48ed Move elements & lib relative to diskimage_builder package
Currently we have all our elements and library files in a top-level
directory and install them into
<root>/share/diskimage-builder/[elements|lib] (where root is either /
or the root of a virtualenv).

The problem with this is that editable/development installs (pip -e)
do *not* install data_files.  Thus we have no canonical location to
look for elements -- leading to the various odd things we do such as a
whole bunch of guessing at the top of disk-image-create and having a
special test-loader in tests/test_elements.py so we can run python
unit tests on those elements that have it.

data_files is really the wrong thing to use for what are essentially
assets of the program.  data_files install works well for things like
config-files, init.d files or dropping documentation files.

By moving the elements under the diskimage_builder package, we always
know where they are relative to where we import from.  In fact,
pkg_resources has an api for this which we wrap in the new
diskimage_builder/paths.py helper [1].

We use this helper to find the correct path in the couple of places we
need to find the base-elements dir, and for the paths to import the
library shell functions.

Elements such as svc-map and pkg-map include python unit-tests, which
we do not need tests/test_elements.py to special-case load any more.
They just get found automatically by the normal subunit loader.

I have a follow-on change (I69ca3d26fede0506a6353c077c69f735c8d84d28)
to move disk-image-create to a regular python entry-point.

Unfortunately, this has to move to work with setuptools.  You'd think
a symlink under diskimage_builder/[elements|lib] would work, but it
doesn't.

[1] this API handles stuff like getting files out of .zip archive
modules, which we don't do.  Essentially for us it's returning
__file__.

Change-Id: I5e3e3c97f385b1a4ff2031a161a55b231895df5b
2016-11-01 17:27:41 -07:00

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#!/bin/bash
# Save user SSH public key if available.
# XXX: Obviously not suitable for downloadable images.
if [ ${DIB_DEBUG_TRACE:-0} -gt 0 ]; then
set -x
fi
set -eu
set -o pipefail
if [ "$DIB_LOCAL_CONFIG_USERNAME" == "root" ]; then
DIR_NAME=${DIB_LOCAL_CONFIG_USERNAME}
else
DIR_NAME=home/${DIB_LOCAL_CONFIG_USERNAME}
fi
if [ -e "/tmp/in_target.d/ssh-authorized-keys" ]; then
mkdir -p /${DIR_NAME}/.ssh
cat /tmp/in_target.d/ssh-authorized-keys >> /${DIR_NAME}/.ssh/authorized_keys
chmod 0700 /${DIR_NAME}/.ssh
chmod 0600 /${DIR_NAME}/.ssh/authorized_keys
fi