Initial commit.

.github/workflows/docker-publish.yml

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+name: build_and_publish
+on:
+  push:
+    branches-ignore:
+      # prevent building on commits to any branch
+      - '**'
+    tags:
+      # Build on every tag:
+      - '**'
+  pull_request:
+
+jobs:
+  login-build-and-push:
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v2
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+      -
+        name: Login to the GitHub Container Registry
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      -
+        if: contains(github.ref, 'refs/tags/')
+        name: Build and push release image
+        uses: docker/build-push-action@v2
+        with:
+          push: true
+          tags: |
+            ghcr.io/${{ github.repository_owner }}/ci-php:latest
+            ghcr.io/${{ github.repository_owner }}/ci-php:${{ github.ref_name }}
+      -
+        if: contains(github.ref, 'refs/pull/')
+        name: Build and push pull request image
+        uses: docker/build-push-action@v2
+        with:
+          push: true
+          tags: |
+            ghcr.io/${{ github.repository_owner }}/ci-php:review-pr-${{ github.event.pull_request.number }}-${{ github.head_ref }}
+      -
+        # not used / triggered at the moment:
+        if: contains(github.ref, 'refs/heads/')
+        name: Build and push the feature branch image
+        uses: docker/build-push-action@v2
+        with:
+          push: true
+          tags: |
+            ghcr.io/${{ github.repository_owner }}/ci-php:${{ github.ref_name }}

Dockerfile

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+FROM php:8.0.23-fpm-alpine3.16
+
+LABEL maintainer="[email protected]"
+LABEL org.opencontainers.image.source="https://github.com/morpht/ci-php"
+
+ENV COMPOSER_VERSION=2.3.10 \
+  COMPOSER_HASH_SHA256=d808272f284fa8e0f8b470703e1438ac8f362030bbc9d12e29530277d767aff0
+
+RUN apk add --no-cache --update git \
+        bash \
+        openssh-client \
+        mysql-client \
+        patch \
+        rsync \
+        libpng libpng-dev \
+    && docker-php-ext-install gd pdo pdo_mysql \
+    && apk del libpng-dev \
+    && rm -rf /var/cache/apk/* \
+    && curl -L -o /usr/local/bin/composer https://github.com/composer/composer/releases/download/${COMPOSER_VERSION}/composer.phar \
+    && echo "$COMPOSER_HASH_SHA256  /usr/local/bin/composer" | sha256sum -c \
+    && chmod +x /usr/local/bin/composer
+
+# Remove warning about running as root in composer
+ENV COMPOSER_ALLOW_SUPERUSER=1

README.md

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+# ci-php
+
+Docker image based on the official dockerhub image php:8.x-fpm-alpine3.y
+
+A few modifications:
+
+- added composer v2.3.x
+- installed several packages, e.g. git and mysql-client
+- added php extensions - gd, pdo_mysql
+
+Published in GHCR - https://github.com/morpht/ci-php/pkgs/container/ci-php