Test changes in mix independently

.github/workflows/test-mix.yml

@@ -0,0 +1,66 @@
+name: Test Mix
+
+on:
+  push:
+    paths-ignore:
+      - '**.md'
+      - '**.bat'
+      - 'ecs/**'
+  pull_request:
+    paths-ignore:
+      - '**.md'
+      - '**.bat'
+      - 'ecs/**'
+
+jobs:
+  build-mix:
+    name: Build Mix
+    runs-on: ubuntu-20.04
+    strategy:
+      fail-fast: true
+      max-parallel: 1
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Build mix image
+        run: |
+            (cd mix && docker build -t ejabberd/mix .)
+
+      - name: Build ecs image
+        run: |
+            cd ecs
+            ./build.sh latest
+
+      - name: Run ecs image
+        run: |
+            docker images
+            docker run --name ejabberd -d -p 5222:5222 ejabberd/ecs:latest
+
+      - name: Wait ejabberd started
+        run: |
+            docker exec ejabberd bin/ejabberdctl started
+
+      - name: Check ecs results
+        run: |
+            docker ps -s
+            docker logs ejabberd
+            docker logs ejabberd | grep -q "Start accepting TCP connections" || exit 1
+            docker logs ejabberd | grep -q "error" && exit 1 || exit 0
+            docker logs ejabberd | grep -q "Error" && exit 1 || exit 0
+
+      - name: Save image
+        run: |
+            docker image save ejabberd/ecs:latest --output ejabberd-latest.tar
+
+      - name: Upload image
+        uses: actions/upload-artifact@v2
+        with:
+          name: ejabberd-image
+          path: ejabberd-latest.tar
+
+      - run: |
+          echo "::notice::To get this image, download ejabberd-image.zip, "\
+                         "uncompress it and run: " \
+                         "docker image load -i ejabberd-latest.tar"

.github/workflows/tests.yml

@@ -5,10 +5,12 @@ on:
     paths-ignore:
       - '**.md'
       - '**.bat'
+      - 'mix/**'
   pull_request:
     paths-ignore:
       - '**.md'
       - '**.bat'
+      - 'mix/**'
 
 jobs:
   build: