add workflow

Signed-off-by: henmohr <henriquemohr@redes.ufsm.br>

Author: henmohr

.github/workflows/docker-publish.yml

@@ -0,0 +1,87 @@
+name: Build and Publish Docker Images
+
+on:
+  push:
+    branches:
+      - main
+    tags:
+      - 'v*'
+  pull_request:
+    branches:
+      - main
+  workflow_dispatch:
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME_PHP: ${{ github.repository }}-php
+  IMAGE_NAME_NGINX: ${{ github.repository }}-nginx
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to GitHub Container Registry
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata for PHP image
+        id: meta-php
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME_PHP }}
+          tags: |
+            type=ref,event=branch
+            type=ref,event=pr
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=semver,pattern={{major}}
+            type=sha
+
+      - name: Build and push PHP image
+        uses: docker/build-push-action@v5
+        with:
+          context: .docker/php
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta-php.outputs.tags }}
+          labels: ${{ steps.meta-php.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+      - name: Extract metadata for Nginx image
+        id: meta-nginx
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME_NGINX }}
+          tags: |
+            type=ref,event=branch
+            type=ref,event=pr
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=semver,pattern={{major}}
+            type=sha
+
+      - name: Build and push Nginx image
+        uses: docker/build-push-action@v5
+        with:
+          context: .docker/nginx
+          build-args: |
+            NGINX_CONF=http
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta-nginx.outputs.tags }}
+          labels: ${{ steps.meta-nginx.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max