use gitlab docker registry

.gitignore

@@ -1,2 +1,3 @@
 *~
 .DS_Store
+*.swp

.gitlab-ci.yml

@@ -0,0 +1,10 @@
+build:
+   image: docker:latest
+   services:
+   - docker:dind
+   stage: build
+   script:
+     - docker login -u gitlab-ci-token -p $CI_JOB_TOKEN $CI_REGISTRY
+     - docker build --pull --tag $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_NAME --tag $CI_REGISTRY_IMAGE:$CI_COMMIT_SHA .
+     - docker push $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_NAME
+     - docker push $CI_REGISTRY_IMAGE:$CI_COMMIT_SHA

Dockerfile

@@ -1,4 +1,4 @@
-FROM quay.io/thallian/php7-fpm:latest
+FROM registry.gitlab.com/thallian/docker-php7-fpm:latest
 
 ENV VERSION 1.3.0