kubectl: fix arm64 platform

Signed-off-by: Pete Wall <pete.wall@grafana.com>

Author: petewall

tools/kubectl-image/CHANGELOG.md

@@ -0,0 +1,11 @@
+# Changelog
+
+## Unreleased
+
+## 0.1.1
+
+* Fixed ARM64 compatibility. (@petewall)
+
+## 0.1.0
+
+* First release of the Kubectl image.

tools/kubectl-image/Dockerfile

@@ -7,10 +7,11 @@ LABEL org.opencontainers.image.licenses=Apache-2.0
 RUN apk add --no-cache bash curl gettext jq ca-certificates
 
 # Download kubectl at various versions
+ARG TARGETARCH
 ARG KUBECTL_VERSIONS="1.29 1.30 1.31 1.32 1.33"
 RUN set -eux; \
   for v in $KUBECTL_VERSIONS; do \
-    curl -sSL -o "/usr/bin/kubectl-$v" "https://dl.k8s.io/release/$(curl -L -s "https://dl.k8s.io/release/stable-${v}.txt")/bin/linux/amd64/kubectl" && \
+    curl -sSL -o "/usr/bin/kubectl-$v" "https://dl.k8s.io/release/$(curl -L -s "https://dl.k8s.io/release/stable-${v}.txt")/bin/linux/${TARGETARCH}/kubectl" && \
     chmod +x "/usr/bin/kubectl-$v"; \
   done; \
   ln -s /usr/bin/kubectl-1.33 /usr/bin/kubectl

tools/kubectl-image/version

@@ -1 +1 @@
-0.1.0
+0.1.1