Add logic to run from baked images.

Change adds the following:
- logic to run from "baked images". See [GVISOR_DIR]/tools/images
- installers which install modified files from a workspace. This
allows users to run benchmarks while modifying runsc.
- removes the --preemptible tag from built GCE instances. Preemptible
instances are much more likely to be preempted on startup, which
manifests for the user as a failed benchmark. I don't currently have
a way to detect if a VM has been preempted that will work for this
change.
https://cloud.google.com/compute/docs/instances/preemptible#preemption_process
https://cloud.google.com/compute/docs/instances/preemptible#preemption_selection

PiperOrigin-RevId: 293697949

3 files changed, 11 insertions, 3 deletions

diff --git a/tools/images/defs.bzl b/tools/images/defs.bzl
index 32235813a..de365d153 100644
--- a/tools/images/defs.bzl
+++ b/tools/images/defs.bzl
@@ -57,7 +57,10 @@ def _vm_image_impl(ctx):
         command = argv,
         input_manifests = runfiles_manifests,
     )
-    return [DefaultInfo(files = depset([ctx.outputs.out]))]
+    return [DefaultInfo(
+        files = depset([ctx.outputs.out]),
+        runfiles = ctx.runfiles(files = [ctx.outputs.out]),
+    )]
 
 _vm_image = rule(
     attrs = {
diff --git a/tools/installers/BUILD b/tools/installers/BUILD
index 01bc4de8c..d78a265ca 100644
--- a/tools/installers/BUILD
+++ b/tools/installers/BUILD
@@ -5,10 +5,15 @@ package(
     licenses = ["notice"],
 )
 
+filegroup(
+    name = "runsc",
+    srcs = ["//runsc"],
+)
+
 sh_binary(
     name = "head",
     srcs = ["head.sh"],
-    data = ["//runsc"],
+    data = [":runsc"],
 )
 
 sh_binary(
diff --git a/tools/installers/head.sh b/tools/installers/head.sh
index 4435cb27a..9de8f138c 100755
--- a/tools/installers/head.sh
+++ b/tools/installers/head.sh
@@ -15,7 +15,7 @@
 # limitations under the License.
 
 # Install our runtime.
-third_party/gvisor/runsc/runsc install
+$(dirname $0)/runsc install
 
 # Restart docker.
 service docker restart || true