Initial version, just include basic texlive + extras + make and dia

.gitlab-ci.yml

+# Official docker image.
+image: docker.mjdsystems.ca/mjdsys/debian:master
+
+services:
+  - docker:dind
+
+stages:
+  - build
+  - deploy
+  
+build:
+  stage: build
+  script:
+    - apt-get update
+    - apt-get install -y apt-transport-https ca-certificates curl software-properties-common debootstrap
+    - curl -fsSL https://download.docker.com/linux/debian/gpg | apt-key add -
+    - add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/debian jessie stable"
+    - apt-get update && apt-get install -y docker-ce
+    - export IMAGE_TAG=$(echo -en $CI_BUILD_REF_NAME | tr -c '[:alnum:]_.-' '-')
+    - docker login -u "gitlab-ci-token" -p "$CI_BUILD_TOKEN" $CI_REGISTRY
+    - docker build --pull -t "$CI_REGISTRY_IMAGE:$IMAGE_TAG" .
+    - docker push "$CI_REGISTRY_IMAGE:$IMAGE_TAG"
+
+deploy to latest tag:
+  stage: deploy
+  script:
+    - apt-get update
+    - apt-get install -y apt-transport-https ca-certificates curl software-properties-common debootstrap
+    - curl -fsSL https://download.docker.com/linux/debian/gpg | apt-key add -
+    - add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/debian jessie stable"
+    - apt-get update && apt-get install -y docker-ce
+    - export IMAGE_TAG=$(echo -en $CI_BUILD_REF_NAME | tr -c '[:alnum:]_.-' '-')
+    - docker login -u "gitlab-ci-token" -p "$CI_BUILD_TOKEN" $CI_REGISTRY
+    - docker pull "$CI_REGISTRY_IMAGE:$IMAGE_TAG"
+    - docker tag "$CI_REGISTRY_IMAGE:$IMAGE_TAG" "$CI_REGISTRY_IMAGE:latest"
+    - docker push "$CI_REGISTRY_IMAGE:latest"
+  only:
+    - master

Dockerfile

+FROM docker.mjdsystems.ca/mjdsys/debian
+
+RUN apt-get update && apt-get install -y --no-install-recommends texlive-latex-extra dia make openssh-client && rm /var/lib/apt/lists/* /var/cache/apt/archives/* -rf