v20210721

Only remove customizer.service at shutdown time

Removing a systemd unit file changes the behavior of the unit. In
particular, the value of "TimeoutStartUSec" changes from "infinity"
(desired) to "1m 30s" (not desired) when the unit file is deleted.
Deleting customizer.service early in the preload process increases the
risk of TimeoutStartUSec kicking in and killing customizer.service. To
minimize this risk, let's only delete the unit file during system
shutdown (the stop behavior of customizer.service is invoked at shutdown
time).

A test is added to ensure that the unit file is indeed deleted. The test
can only be run on Ubuntu, because /etc is stateless on COS.

v20210720

Update to latest cos-gpu-installer

Fixes an issue on M89 where rust toolchain elements were not properly
stripped.

Also add a GPU test for M89 to catch this sort of problem before
release.

v20210714

Update cos-gpu-installer to latest version

Fixes an issue where GPU builds fail if the standalone toolchain
includes hard links to the rust standard library.

v20210615

update anthos-installer version to allow downloading of docker images

v20210412

Run unit tests with mtools installed

We use mtools to copy data onto the CIDATA disk image (which is a vfat
file system). Unit tests depend on mtools being installed in the
environment. Let's install mtools in the release workflow so that unit
tests pass there.

We install mtools by building a local container in the cloud build job
that is gcr.io/cloud-builders/bazel + mtools. We then use this container
in place of gcr.io/cloud-builders/bazel.

v20210204

Update cos-customizer to use cos-gpu-installer v20210204

v20200929

Add support for passing in an nvidia installer

For certain types of pre-release images, it is useful to be able to
choose the exact nvidia installer that we build with. This change allows
users to specify an nvidia installer in the 'install-gpu' step. The
installer must be specified in the '-version' flag, and if an installer
is specified, it must be available in the '-deps-dir' directory.

v20200901

Revert "Update cos-gpu-installer to version v20200701"

This reverts commit 267abc750b8039ec5de494d5d8b1fe12aca53bf3.

This change is causing GPU tests to fail.

v20200723

Updated WORKSPACE dependencies (#28)

The extend-oem-parititon binary is now built by bazel. With the rules_pkg introduced to build the binary to data/builtin_build_context/, the dependencies and package versions in bazel WORKSPACE are updated.

v20200722

Make sure that a unit exists before stopping it. (#27)

If we stop a unit that doesn't exist, `systemctl stop` will return a
non-zero exit code, resulting in a failed build. This causes issues when
we remove units in new milestones.

We use `systemctl is-active` to determine if we need to stop the unit or
not. This isn't the same thing as checking if the unit exists, but it's
good enough in this case because we really only want to stop the unit if
it is active.