Add a functional vm_test for root_test.

This change renames the tools/images directory to tools/vm for clarity, and
adds a functional vm_test. Sharding is also added to the same test, and some
documentation added around key flags & variables to describe how they work.

Subsequent changes will add vm_tests for other cases, such as the runtime tests.

PiperOrigin-RevId: 307492245

1 files changed, 57 insertions, 0 deletions

diff --git a/tools/vm/BUILD b/tools/vm/BUILD
new file mode 100644
index 000000000..f7160c627
--- /dev/null
+++ b/tools/vm/BUILD
@@ -0,0 +1,57 @@
+load("//tools:defs.bzl", "cc_binary", "gtest")
+load("//tools/vm:defs.bzl", "vm_image", "vm_test")
+
+package(
+    default_visibility = ["//:sandbox"],
+    licenses = ["notice"],
+)
+
+sh_binary(
+    name = "zone",
+    srcs = ["zone.sh"],
+)
+
+sh_binary(
+    name = "builder",
+    srcs = ["build.sh"],
+)
+
+sh_binary(
+    name = "executer",
+    srcs = ["execute.sh"],
+)
+
+cc_binary(
+    name = "test",
+    testonly = 1,
+    srcs = ["test.cc"],
+    linkstatic = 1,
+    deps = [
+        gtest,
+        "//test/util:test_main",
+    ],
+)
+
+vm_image(
+    name = "ubuntu1604",
+    family = "ubuntu-1604-lts",
+    project = "ubuntu-os-cloud",
+    scripts = [
+        "//tools/vm/ubuntu1604",
+    ],
+)
+
+vm_image(
+    name = "ubuntu1804",
+    family = "ubuntu-1804-lts",
+    project = "ubuntu-os-cloud",
+    scripts = [
+        "//tools/vm/ubuntu1804",
+    ],
+)
+
+vm_test(
+    name = "vm_test",
+    shard_count = 2,
+    targets = [":test"],
+)