Merge pull request #2 from antobinary/ci

added ci steps to build and push docker image

.github/workflows/ci.build.push.yml

@@ -0,0 +1,49 @@
+name: Build And Push to Dockerhub
+on:
+  push:
+    tags:
+      - '*'
+  pull_request:
+    types: [opened, synchronize, reopened]
+    paths-ignore:
+      - '**/*.md'
+permissions:
+  contents: read
+jobs:
+  main:
+    name: Build Docker Image
+    env:
+      DOCKER_BUILD_ENABLED: ${{ secrets.DOCKER_BUILD_ENABLED }}
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        if: contains(env.DOCKER_BUILD_ENABLED, 'true')
+        uses: actions/checkout@v3
+
+      - name: Set up Docker Buildx
+        if: contains(env.DOCKER_BUILD_ENABLED, 'true')
+        uses: docker/setup-buildx-action@v2
+
+      - name: Login to DockerHub
+        if: contains(env.DOCKER_BUILD_ENABLED, 'true')
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Get current date
+        id: date
+        if: contains(env.DOCKER_BUILD_ENABLED, 'true')
+        shell: bash
+        run: echo "time=$(date +'%Y-%m-%d-%H%M%S')" >> $GITHUB_OUTPUT
+
+      - name: Build and Push branch
+        if: contains(env.DOCKER_BUILD_ENABLED, 'true')
+        uses: docker/build-push-action@v3
+        with:
+          push: true
+          tags: "bigbluebutton/bbb-libreoffice:${{ github.ref_name }}--${{ steps.date.outputs.time }}"
+          context: .
+          cache-from: type=registry,ref=user/app:latest
+          cache-to: type=inline