Adds docker base image build

.github/FUNDING.yml

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+# These are supported funding model platforms
+
+patreon: butschster

.github/workflows/docker-image.yml

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+name: Docker Image CI
+
+on:
+  release:
+    types:
+      - created
+
+jobs:
+  build-release:
+    if: "!github.event.release.prerelease"
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: 'Get Previous tag'
+        id: previoustag
+        uses: "WyriHaximus/github-action-get-previous-tag@v1"
+        with:
+          fallback: v0.1
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v2
+        with:
+          registry: ghcr.io
+          username: ${{ secrets.GHCR_LOGIN }}
+          password: ${{ secrets.GHCR_PASSWORD }}
+
+      - name: Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Build and push
+        id: docker_build
+        uses: docker/build-push-action@v3
+        with:
+          context: ./
+          platforms: linux/amd64,linux/arm64
+          file: ./docker/Dockerfile
+          push: true
+          tags:
+            ghcr.io/${{ github.repository }}:latest, ghcr.io/${{ github.repository }}:${{ steps.previoustag.outputs.tag }}

Dockerfile

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+FROM php:8.1.3-cli-alpine3.15
+
+RUN apk add --no-cache \
+        curl \
+        libcurl \
+        wget \
+        libzip-dev \
+        libmcrypt-dev \
+        libxslt-dev \
+        libxml2-dev \
+        icu-dev \
+        zip
+
+RUN docker-php-ext-install \
+        opcache \
+        zip \
+        xsl \
+        dom \
+        exif \
+        intl \
+        pcntl \
+        bcmath \
+        sockets
+
+RUN apk add --no-cache nginx
+RUN cp docker/nginx/nginx.conf /etc/nginx/nginx.conf
+RUN [ -d /etc/nginx/conf.d ] ||  mkdir /etc/nginx/conf.d
+RUN cp docker/nginx/default.conf /etc/nginx/conf.d/default.conf
+
+RUN curl -s https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin/ --filename=composer
+
+RUN docker-php-source delete \
+        && apk del ${BUILD_DEPENDS}

nginx/default.conf

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+map $http_upgrade $connection_upgrade {
+    default upgrade;
+    '' close;
+}
+
+server {
+    listen 8000;
+
+    server_name _;
+
+    location /connection {
+        proxy_pass http://127.0.0.1:8089/connection;
+        proxy_http_version 1.1;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection $connection_upgrade;
+        proxy_set_header Host $host;
+    }
+
+    location / {
+        proxy_pass http://127.0.0.1:8082;
+    }
+}

nginx/nginx.conf

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+daemon off;
+user  nginx;
+worker_processes  1;
+
+events {
+    worker_connections  1024;
+}
+
+http {
+    include       mime.types;
+    default_type  application/octet-stream;
+
+    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
+                      '$status $body_bytes_sent "$http_referer" '
+                      '"$http_user_agent" "$http_x_forwarded_for"';
+
+    access_log  /dev/stdout  main;
+
+    # fix for very long server names
+    server_names_hash_bucket_size 128;
+
+    sendfile        on;
+    # tcp_nopush     on;
+
+    keepalive_timeout  65;
+
+    # gzip  on;
+
+    include /etc/nginx/conf.d/*.conf;
+}