Create image used for CI testing

.gitlab-ci.yml

@@ -3,6 +3,7 @@ image: docker:latest
 stages:
 - test
 - build
+- build-test
 
 variables:
   BRANCH: ext
@@ -41,3 +42,16 @@ x86_64:build:
   - x86_64
   only:
   - ext
+
+x86_64:build-test:
+  stage: build-test
+  script:
+  - if [ -f init ]; then chmod 500 init; fi
+  - ([ -z "$REFRESH" ] && docker pull ${CI_REGISTRY_IMAGE}:${CACHETAG}) || true
+  - docker build --file Dockerfile.phptest --cache-from ${CI_REGISTRY_IMAGE}:${CACHETAG} -t ${CI_REGISTRY_IMAGE}:${VERSION}-test .
+  - docker push ${CI_REGISTRY_IMAGE}:${VERSION}-test
+  tags:
+  - docker
+  - x86_64
+  only:
+  - ext

Dockerfile.phptest

@@ -0,0 +1,12 @@
+# NAME leenooks/php
+# VERSION 8.0-fpm-test
+
+FROM registry.leenooks.net/leenooks/php:8.0-fpm-mp
+
+RUN pecl install xdebug \
+	&& docker-php-ext-enable xdebug
+
+RUN apt-get update && apt-get install -y npm \
+        && apt-get -y autoremove \
+        && apt-get clean \
+        && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*