Fix k3s arm64 binary in offline installer

.github/workflows/offline-package-k3s-installer.yaml

@@ -76,7 +76,7 @@ jobs:
     needs: build-k3s-installer
     strategy:
       matrix:
-        arch: [amd64]
+        arch: [amd64, arm64]
     runs-on: ubuntu-latest
 
     steps:
@@ -91,7 +91,19 @@ jobs:
           cd test-dir
           tar -xzvf offline-package-k3s-installer-${{ matrix.arch }}.tar.gz
 
+      - name: Verify k3s binary arch
+        run: |
+          set -euo pipefail
+          BIN="test-dir/k3s-offline-package/bin/k3s-${{ matrix.arch }}"
+          file "$BIN"
+          if [ "${{ matrix.arch }}" = "amd64" ]; then
+            file "$BIN" | grep -q 'x86-64'
+          else
+            file "$BIN" | grep -q 'aarch64'
+          fi
+
       - name: Setup K3s and Test
+        if: matrix.arch == 'amd64'
         run: |
           cd test-dir/k3s-offline-package
           bash install-server.sh

scripts/make_k3s_offline_package.sh

@@ -285,7 +285,11 @@ rm -rf "${BASE_DIR}"
 mkdir -p "${BASE_DIR}/"{bin,images,cni-plugins,addons,registry/docker.io,registry/ghcr.io,install}
 
 # 核心二进制
-download "${K3S_URL_BASE}/k3s"                "${BASE_DIR}/bin/k3s-${ARCH}"
+K3S_BIN="k3s"
+if [[ "${ARCH}" != "amd64" ]]; then
+  K3S_BIN="k3s-${ARCH}"
+fi
+download "${K3S_URL_BASE}/${K3S_BIN}"                "${BASE_DIR}/bin/k3s-${ARCH}"
 chmod +x "${BASE_DIR}/bin/k3s-${ARCH}"
 
 download "https://dl.k8s.io/release/${KUBECTL_VERSION}/bin/linux/${ARCH}/kubectl" "${BASE_DIR}/bin/kubectl-${ARCH}"