Initial commit

.gitlab-ci.yml

@@ -0,0 +1,19 @@
+image: docker:latest
+
+variables:
+  IMAGE_TAG: $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_NAME
+
+stages:
+    - build
+
+before_script:
+  - docker login -u gitlab-ci-token -p $CI_JOB_TOKEN $CI_REGISTRY
+
+build-master:
+  stage: build
+  script:
+    - docker build --pull --no-cache -t $IMAGE_TAG .
+    - docker push $IMAGE_TAG
+  only:
+    - master
+

Dockerfile

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+FROM ruby:2.3
+
+RUN gem install mailcatcher --no-rdoc --no-ri
+
+# smtp (25) and ip (80) ports
+EXPOSE 25 1080
+
+CMD ["mailcatcher", "--smtp-ip=0.0.0.0", "--smtp-port=25", "--http-ip=0.0.0.0", "--http-port=1080", "-f"]
+