chore: add glance images (#809)

diff --git a/images/kubernetes/Earthfile b/images/kubernetes/Earthfile
new file mode 100644
index 0000000..bf613b2
--- /dev/null
+++ b/images/kubernetes/Earthfile
@@ -0,0 +1,7 @@
+VERSION 0.7
+
+image:
+  FROM curlimages/curl:7.78.0
+  RUN curl -L "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/${TARGETOS}/${TARGETARCH}/kubectl" -o /tmp/kubectl
+  RUN chmod +x /tmp/kubectl
+  SAVE ARTIFACT /tmp/kubectl kubectl