first stab at docker image build process

.gitlab-ci.yml

@@ -0,0 +1,36 @@
+image: docker:git
+services:
+- docker:dind
+
+stages:
+- build
+- test
+- release
+
+variables:
+  TEST_IMAGE: registry.gitlab.com/$CI_PROJECT_NAMESPACE/${CI_PROJECT_NAME}:$CI_BUILD_REF_NAME
+  RELEASE_IMAGE: registry.gitlab.com/$CI_PROJECT_NAMESPACE/${CI_PROJECT_NAME}:latest
+
+before_script:
+  - docker login -u gitlab-ci-token -p $CI_BUILD_TOKEN registry.gitlab.com
+
+build:
+  stage: build
+  script:
+    - docker build -t $TEST_IMAGE .
+    - docker push $TEST_IMAGE
+
+test:
+  stage: test
+  script:
+    - docker run $TEST_IMAGE /test
+
+release:
+  stage: release
+  script:
+    - docker pull $TEST_IMAGE
+    - docker tag $TEST_IMAGE $RELEASE_IMAGE
+    - docker push $RELEASE_IMAGE
+  only:
+    - master
+    - tags

Dockerfile

@@ -0,0 +1,26 @@
+from debian:sid-slim
+MAINTAINER hans@eds.org
+
+ENV LANG=C.UTF-8 \
+    DEBIAN_FRONTEND=noninteractive
+
+# install the minimum needed for a standard git-buildpackage build
+# that includes pristine-tar.  This also does not install
+# documentation to keep the image small.
+RUN printf "path-exclude=/usr/share/locale/*\npath-exclude=/usr/share/man/*\npath-exclude=/usr/share/doc/*\npath-include=/usr/share/doc/*/copyright\n" >/etc/dpkg/dpkg.cfg.d/01_nodoc \
+	&& apt-get update \
+	&& apt-get -y upgrade \
+	&& apt-get -y dist-upgrade \
+	&& apt-get install -y --no-install-recommends \
+		build-essential \
+		dpkg-dev \
+		fakeroot \
+		git \
+		git-buildpackage \
+		pristine-tar \
+	&& apt-get -y autoremove --purge \
+	&& apt-get clean \
+	&& rm -rf /var/lib/apt/lists/*
+
+COPY test /
+

test

@@ -0,0 +1,3 @@
+#!/bin/bash
+
+gbp --version