ci: dockerize and push with gh-actions

.github/workflows/docker.yaml

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+name: Docker publish
+
+on:
+  push:
+    branches:
+      - 'master'
+    tags:
+      - '*.*.*'
+
+jobs:
+  docker:
+    environment: docker-registry
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v2
+      -
+        name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v3
+        with:
+          # list of Docker images to use as base name for tags
+          images: registry.hub.docker.com/${{ secrets.DOCKER_REGISTRY_USERNAME }}/signaturepdf
+          # generate Docker tags based on the following events/attributes
+          tags: |
+            type=ref,event=branch
+            type=ref,event=pr
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=semver,pattern={{major}}
+      -
+        name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+      -
+        name: Login to registry
+        uses: docker/login-action@v1
+        with:
+          registry: registry.hub.docker.com
+          username: xgaia
+          password: ${{ secrets.DOCKER_REGISTRY_TOKEN }}
+      -
+        name: Build and push
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          secrets: |
+            GIT_AUTH_TOKEN=${{ secrets.DOCKER_REGISTRY_TOKEN }}

Dockerfile

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+FROM php:7.4-apache
+
+ENV SERVERNAME=localhost
+
+RUN apt update && apt install -y gettext-base librsvg2-bin pdftk imagemagick potrace
+
+COPY . /usr/local/signaturepdf
+
+RUN chown -R www-data:www-data /usr/local/signaturepdf && chmod 750 -R /usr/local/signaturepdf && \
+    cp /usr/local/signaturepdf/php.ini /usr/local/etc/php/conf.d/uploads.ini && \
+    cat /usr/local/signaturepdf/apache.conf | envsubst > /etc/apache2/sites-available/signaturepdf.conf && \
+         a2enmod rewrite && a2ensite signaturepdf
+
+WORKDIR /usr/local/signaturepdf
+
+CMD envsubst < /usr/local/signaturepdf/apache.conf > /etc/apache2/sites-available/signaturepdf.conf && \
+    chown -R www-data:www-data /usr/local/signaturepdf && chmod 750 -R /usr/local/signaturepdf && \
+    apache2-foreground

apache.conf

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+<VirtualHost *:80>
+    ServerName ${SERVERNAME}
+    DocumentRoot /usr/local/signaturepdf/public
+    DirectoryIndex index.php
+
+    AddDefaultCharset UTF-8
+
+    <Directory /usr/local/signaturepdf/public>
+          AllowOverride All
+        <IfVersion >= 2.3>
+            Require all granted
+        </IfVersion>
+        <IfVersion < 2.3>
+            Order Deny,Allow
+            Allow from all
+        </IfVersion>
+    </Directory>
+
+    LogLevel warn
+    ErrorLog /var/log/apache2/ssp_error.log
+    CustomLog /var/log/apache2/ssp_access.log combined
+</VirtualHost>

php.ini

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+upload_max_filesize = 24M
+post_max_size = 24M
+max_file_uploads = 201