Email gVisor team if release pipeline fails.

PiperOrigin-RevId: 581067987

.buildkite/gpu.yaml

@@ -1,25 +0,0 @@
-agents:
-  queue: release
-_templates:
-  common: &common
-    timeout_in_minutes: 120
-    retry:
-      automatic:
-        - exit_status: -1
-          limit: 10
-        - exit_status: "*"
-          limit: 2
-
-env:
-  # Force a clean checkout every time to avoid reuse of files between runs.
-  BUILDKITE_CLEAN_CHECKOUT: true
-
-steps:
-  # GPU workflow.
-  - <<: *common
-    if: build.branch == "master" && build.tag == null
-    label: ":screwdriver: All GPU Drivers Test"
-    commands:
-      - tools/gpu/all_drivers_test.sh
-    agents:
-      queue: gpu

.buildkite/release.yaml

@@ -10,6 +10,10 @@ _templates:
         - exit_status: "*"
           limit: 2
 
+notify:
+  - email: "gvisor-eng+buildkite@google.com"
+    if: build.state == "failed"
+
 env:
   # Force a clean checkout every time to avoid reuse of files between runs.
   BUILDKITE_CLEAN_CHECKOUT: true
@@ -41,3 +45,15 @@ steps:
     commands:
       # The built website image must be x86_64.
       - make BAZEL_OPTIONS=--config=x86_64 website-deploy
+  - <<: *common
+    label: ":female_supervillain: COS GPU Smoke Test"
+    commands:
+      - make cos-gpu-tests RUNTIME_ARGS="--strace --debug"
+    agents:
+      queue: cos-canary-gpu
+  - <<: *common
+    label: ":screwdriver: All GPU Drivers Test"
+    commands:
+      - tools/gpu/all_drivers_test.sh
+    agents:
+      queue: gpu