php7.4 in docker

.github/workflows/test_and_publish.yml

@@ -10,6 +10,7 @@ jobs:
   test:
     name: PHP ${{ matrix.php }} / DB ${{ matrix.database }}
     strategy:
+      max-parallel: 3
       fail-fast: false
       matrix:
         php: ['7.3', '7.4']
@@ -25,7 +26,7 @@ jobs:
       with:
         php-version: ${{ matrix.php }}
         coverage: pcov
-        extensions: mbstring, pdo-sqlite, pdo-pgsql, pdo-mysql, gd
+        extensions: mbstring
 
     - name: Set up database
       run: |

Dockerfile

@@ -1,7 +1,7 @@
 # "Build" shimmie (composer install - done in its own stage so that we don't
 # need to include all the composer fluff in the final image)
-FROM debian:stable-slim AS app
-RUN apt update && apt install -y composer php7.3-gd php7.3-dom php7.3-sqlite3 php-xdebug imagemagick
+FROM debian:testing-slim AS app
+RUN apt update && apt install -y composer php7.4-gd php7.4-dom php7.4-sqlite3 php-xdebug imagemagick
 COPY composer.json composer.lock /app/
 WORKDIR /app
 RUN composer install --no-dev
@@ -10,8 +10,8 @@ COPY . /app/
 # Tests in their own image. Really we should inherit from app and then
 # `composer install` phpunit on top of that; but for some reason
 # `composer install --no-dev && composer install` doesn't install dev
-FROM debian:stable-slim AS tests
-RUN apt update && apt install -y composer php7.3-gd php7.3-dom php7.3-sqlite3 php-xdebug imagemagick
+FROM debian:testing-slim AS tests
+RUN apt update && apt install -y composer php7.4-gd php7.4-dom php7.4-sqlite3 php-xdebug imagemagick
 COPY composer.json composer.lock /app/
 WORKDIR /app
 RUN composer install
@@ -25,7 +25,7 @@ RUN [ $RUN_TESTS = false ] || (\
     echo '=== Cleaning ===' && rm -rf data)
 
 # Build su-exec so that our final image can be nicer
-FROM debian:stable-slim AS suexec
+FROM debian:testing-slim AS suexec
 RUN  apt-get update && apt-get install -y --no-install-recommends gcc libc-dev curl
 RUN  curl -k -o /usr/local/bin/su-exec.c https://raw.githubusercontent.com/ncopa/su-exec/master/su-exec.c; \
      gcc -Wall /usr/local/bin/su-exec.c -o/usr/local/bin/su-exec; \
@@ -33,13 +33,13 @@ RUN  curl -k -o /usr/local/bin/su-exec.c https://raw.githubusercontent.com/ncopa
      chmod 0755 /usr/local/bin/su-exec;
 
 # Actually run shimmie
-FROM debian:stable-slim
+FROM debian:testing-slim
 EXPOSE 8000
 HEALTHCHECK --interval=5m --timeout=3s CMD curl --fail http://127.0.0.1:8000/ || exit 1
 ENV UID=1000 \
     GID=1000
 RUN apt update && apt install -y curl \
-    php7.3-cli php7.3-gd php7.3-pgsql php7.3-mysql php7.3-sqlite3 php7.3-zip php7.3-dom php7.3-mbstring \
+    php7.4-cli php7.4-gd php7.4-pgsql php7.4-mysql php7.4-sqlite3 php7.4-zip php7.4-dom php7.4-mbstring \
     imagemagick zip unzip && \
     rm -rf /var/lib/apt/lists/*
 COPY --from=app /app /app