feat: update k3s-inside-dind

builds/k3s-inside-dind/Dockerfile

@@ -2,8 +2,9 @@ FROM docker:29-dind
 
 ARG TARGETARCH=amd64
 ARG K3S_VERSION=v1.28.2+k3s1
+ARG PRELOAD_IMAGES="true"
 
-RUN apk add --no-cache bash iptables curl fuse-overlayfs
+RUN apk add --no-cache bash iptables curl fuse-overlayfs jq
 
 RUN if [ "$TARGETARCH" = "amd64" ]; then \
     export SUFFIX=""; \
@@ -13,6 +14,10 @@ RUN if [ "$TARGETARCH" = "amd64" ]; then \
     curl -L -o /usr/local/bin/k3s https://github.com/k3s-io/k3s/releases/download/${K3S_VERSION}/k3s${SUFFIX} && \
     chmod +x /usr/local/bin/k3s
 
+RUN mkdir -p /var/lib/rancher/k3s/agent/images/ && \
+    curl -sfL https://github.com/k3s-io/k3s/releases/download/${K3S_VERSION}/k3s-airgap-images-${TARGETARCH}.tar.zst \
+    -o /var/lib/rancher/k3s/agent/images/k3s-airgap-images.tar.zst
+
 EXPOSE 6443
 
 COPY entrypoint.sh /usr/local/bin/entrypoint.sh