Proposal to deploy Docker image on each commit on master

.travis.yml

@@ -12,15 +12,19 @@ matrix:
         - python: "3.5"
         - python: "3.6"
         - python: "3.7-dev"
-        - env: BUILD_DOCKER=1
+        - env:
+            - BUILD_DOCKER=1
+            # Variable to add to publish the Docker image:
+            # * DOCKER_USERNAME
+            # * DOCKER_PASSWORD, to be encrypted, use `travis encrypt DOCKER_PASSWORD=<password>`
           services:
             - docker
           before_install:
             - true
           install:
             - true
           script:
-            - docker build -t paperless .
+            - docker build --tag=the-paperless-project/paperless .
           after_success:
             - true
 
@@ -37,3 +41,17 @@ script:
 
 after_success:
   - coveralls
+
+deploy:
+  - provider: script
+    skip_cleanup: true
+    script: ci/deploy-docker
+    on:
+      tags: true
+      condition: '"${BUILD_DOCKER}" = 1'
+  - provider: script
+    skip_cleanup: true
+    script: ci/deploy-docker
+    on:
+      branch: master
+      condition: '"${BUILD_DOCKER}" = 1'

ci/deploy-docker

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+if [ "${DOCKER_USERNAME}" == "" -o "${DOCKER_PASSWORD}" == "" ]
+then
+    exit 0
+fi
+
+docker login --username=${DOCKER_USERNAME} --password=${DOCKER_PASSWORD}
+if [ "${TRAVIS_TAG}" != "" ]
+then
+    docker tag the-paperless-project/paperless the-paperless-project/paperless:${TRAVIS_TAG}
+    docker push the-paperless-project/paperless:${TRAVIS_TAG}
+else
+    docker push the-paperless-project/paperless
+fi