ci: adapts to old linux

.github/workflows/ci.yml

@@ -60,6 +60,61 @@ jobs:
           path: |
             neuron-sdk-*.tar.gz
 
+  cross-build-old:
+    runs-on: ubuntu-18.04
+    strategy:
+      matrix:
+        arch:
+          - [aarch64-linux-gnu, aarch64, arm64]
+          - [arm-linux-gnueabihf, armv4, armhf]
+          - [x86_64-linux-gnu, x86_64, amd64]
+    container: neugates/build_old:${{ matrix.arch[1] }}-2.2
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - uses: actions/checkout@v2
+        with:
+          repository: troydhanson/uthash
+          path: extern/uthash
+
+      - name: get version
+        id: get_version
+        run: echo "::set-output name=version::$(cat version)"
+
+      - name: compile
+        run: |
+          mkdir -p build && cd build
+          cmake .. -DCMAKE_TOOLCHAIN_FILE=../cmake/${{ matrix.arch[0] }}.cmake \
+            -DCMAKE_BUILD_TYPE=Release -DDISABLE_UT=ON
+          make -j4
+
+      - name: get ui version
+        id: get_ui_version
+        run: echo "::set-output name=version::$(cat ui_version)"
+
+      - name: fetch dashboard
+        uses: dsaltares/fetch-gh-release-asset@master
+        with:
+          repo: "emqx/neuron-dashboard-src"
+          version: "tags/${{ steps.get_ui_version.outputs.version }}"
+          file: "neuron-dashboard.zip"
+          target: "neuron-dashboard.zip"
+
+      - name: unpack dashboard
+        run: |
+          unzip neuron-dashboard.zip -d ./build
+
+      - name: Create neuron sdk package
+        run: |
+          ./package-sdk.sh -p ${{ matrix.arch[2] }} -n neuron-sdk-old-${{ steps.get_version.outputs.version }}
+
+      - uses: actions/upload-artifact@v3
+        with:
+          name: neuron-sdk-old-${{ matrix.arch[2] }}
+          path: |
+            neuron-sdk-old-*.tar.gz
+
   build-debug-sdk:
     runs-on: ubuntu-20.04
     strategy:
@@ -140,7 +195,7 @@ jobs:
     strategy:
       matrix:
         arch: [arm64, armhf, amd64]
-        type: [neuron-sdk]
+        type: [neuron-sdk, neuron-sdk-old]
         package: [tar.gz]
 
     steps: