ucentral: various updates and fixes

* Gateway and client are now talking jsonrpc on the wire.
* update the datamodel to the latest version.
* add github workflow
* add zero touch on-boarding

Signed-off-by: John Crispin <john@phrozen.org>

.github/workflows/build-dev.yml

@@ -0,0 +1,37 @@
+name: Build OpenWrt with OpenSync
+
+on:
+  push:
+    branches: [ uCentral-* ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        target: ['e8450', 'ea8300', 'wf194c', 'zyxel_gs1900-10hp', 'edgecore_ecs4100-12ph']
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Build image for ${{ matrix.target }}
+      id: build
+      run: |
+        git config --global user.email "you@example.com"
+        git config --global user.name "Your Name"
+        make -j TARGET=${{ matrix.target }}
+
+    - name: Package and upload image for ${{ matrix.target }}
+      env:
+          GH_BUILD_USERNAME: ${{ secrets.GH_BUILD_USERNAME }}
+          GH_BUILD_PASSWORD: ${{ secrets.GH_BUILD_PASSWORD }}
+          ARTIFACTORY_USERNAME: cicd-indoor-main
+          ARTIFACTORY_PASSWORD: ${{ secrets.ARTIFACTORY_PASSWORD }}
+      run: |
+        BRANCH=$(git rev-parse --abbrev-ref HEAD)
+        LOWERCASE_TARGET=`echo ${{ matrix.target }} | tr '[:upper:]' '[:lower:]'`
+        TAR_NAME="$LOWERCASE_TARGET-$BRANCH.tar.gz"
+        ls openwrt/bin/targets/
+        tar cfz "$TAR_NAME" -C openwrt/bin/targets/ .
+        curl -u $GH_BUILD_USERNAME:$GH_BUILD_USERNAME -T "$TAR_NAME" "https://tip.jfrog.io/artifactory/tip-wlan-ap-firmware/$LOWERCASE_TARGET/uCentral/dev/"$TAR_NAME""