Add option to re-create VMs for new images (#2707)

pipelines/publish-vm-image.yml

diff --git a/pipelines/publish-vm-image.yml b/pipelines/publish-vm-image.yml
index b883515..c247400 100644
--- a/pipelines/publish-vm-image.yml
+++ b/pipelines/publish-vm-image.yml
@@ -95,3 +95,35 @@
             - "/var/lib/buildkite-agent:/var/lib/buildkite-agent"
             - "/var/lib/gitmirrors:/var/lib/gitmirrors:ro"
             - "/var/run/docker.sock:/var/run/docker.sock"
+
+  - wait
+
+  - block: ":arrows_counterclockwise: Re-create instance group in the bazel org"
+
+  - command: |-
+      cd buildkite
+      ./create_instances.py "${BAZEL_VM_NAMES}"
+    label: ":pipeline:"
+    agents:
+      - "queue=default"
+    plugins:
+      - docker#v3.8.0:
+          always-pull: true
+          environment:
+            - "ANDROID_HOME"
+            - "ANDROID_NDK_HOME"
+            - "BUILDKITE_ARTIFACT_UPLOAD_DESTINATION"
+          image: "gcr.io/bazel-public/ubuntu2204"
+          network: "host"
+          privileged: true
+          propagate-environment: true
+          propagate-uid-gid: true
+          volumes:
+            - "/etc/group:/etc/group:ro"
+            - "/etc/passwd:/etc/passwd:ro"
+            - "/etc/shadow:/etc/shadow:ro"
+            - "/opt/android-ndk-r15c:/opt/android-ndk-r15c:ro"
+            - "/opt/android-sdk-linux:/opt/android-sdk-linux:ro"
+            - "/var/lib/buildkite-agent:/var/lib/buildkite-agent"
+            - "/var/lib/gitmirrors:/var/lib/gitmirrors:ro"
+            - "/var/run/docker.sock:/var/run/docker.sock"
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