Pre-bootstrap systems need to access the package feed directly
when doing an apt-ostree compose during software deploy start.
But /var/www/pages/updates is not available on the sandbox
environment.
This commit adds an explicit bind to the bwrap command that runs
the sandbox.
Test Plan:
PASS: /var/www/pages/updates available on the sandbox
Partial-bug: 2119342
Change-Id: Ie5c8ce5c3b480bc29463a62e34a94a1a60dbc734
Signed-off-by: Matheus Guilhermino <mmachado@windriver.com>
334e8b1877