[github] WIP: Add sinttest-openfire workflow

.github/actions/action.yml

@@ -0,0 +1,53 @@
+name: CI Setup
+description: 'Sets up the environment for jobs during CI workflow'
+
+inputs:
+  java-major-version:
+    required: true
+
+runs:
+  using: composite
+  steps:
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Set up JDK ${{ inputs.java-major-version }}
+        uses: actions/setup-java@v3
+        with:
+          java-version: ${{ inputs.java-major-version }}
+          distribution: temurin
+
+      # Caches
+      - name: Cache Maven
+        uses: actions/cache@v2
+        with:
+          path: ~/.m2/repository
+          key: maven-${{ hashFiles('**/build.gradle') }}
+          restore-keys: |
+            maven-
+      - name: Cache Gradle
+        uses: actions/cache@v2
+        with:
+          path: ~/.gradle/caches
+          key: gradle-caches-${{ hashFiles('**/build.gradle') }}
+          restore-keys:
+            gradle-caches
+      - name: Cache Android SDK
+        uses: actions/cache@v2
+        with:
+          path: |
+            ~/.android/sdk
+          key: android-${{ hashFiles('build.gradle') }}
+          restore-keys: |
+            android-
+
+      # Pre-reqs
+      - name: Install GraphViz
+        run: sudo apt update && sudo apt install graphviz
+      - name: Install Android SDK Manager
+        uses: android-actions/setup-android@v3
+      - name: Install Android SDK
+        run: |
+          sdkmanager "platforms;android-26"
+    

.github/workflows/sinttest-openfire.yml

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+name: CI
+
+on:
+  push:
+  pull_request:
+  merge_group:
+
+jobs:
+  build:
+    name: Run Smack's integration tests against openfire
+
+    runs-on: ubuntu-24.04
+    services:
+      docker:
+        image: docker:dind
+        options: --privileged --shm-size=2g
+        volumes:
+          - /var/run/docker.sock:/var/run/docker.sock:ro
+    strategy:
+      matrix:
+        java:
+          - 17
+          - 21
+    env:
+      PRIMARY_JAVA_VERSION: 21
+
+    steps:
+      - name: CI Setup
+        uses: './.github/actions/ci-setup'
+        with:
+          java-major-version: ${{ matrix.java }}
+
+      - name: Set up Docker
+        uses: docker/setup-docker-action@v4
+
+      - name: 
+        run: |
+          docker run ghcr.io/igniterealtime/openfire:main