Merge pull request #215 from rporres/add-ci

Travis to push on tag

.travis.yml

@@ -0,0 +1,31 @@
+dist: trusty
+
+language: ruby
+
+rvm:
+  - 1.9.3-p551
+
+bundler_args: --without heroku
+
+sudo: required
+
+services:
+  - mysql
+
+stages:
+  - name: release
+    if: tag IS present
+
+before_install:
+  - sudo apt-get update
+  - sudo apt-get install -y libxml2-dev
+  - gem update --system
+  - gem install --force bundler
+  - gem install debugger-ruby_core_source
+
+jobs:
+  include:
+    - name: 'Push image to Docker Hub'
+      stage: release
+      script:
+        - make docker-push

Makefile

@@ -1,13 +1,36 @@
-# TODO: This is temporary, will need to adjust it when we connect to
-# a proper CI
 PROJECT = pageonex
-DOCKER_REGISTRY = docker.io
-DOCKER_ORG = pageonex
-VERSION := $(TAG)
-DOCKER_IMAGE = $(DOCKER_REGISTRY)/$(DOCKER_ORG)/$(PROJECT):$(VERSION)
+DOCKER_REGISTRY ?= docker.io
+DOCKER_ORG ?= pageonex
+DOCKER_USERNAME ?=
+DOCKER_PASSWORD ?=
+VERSION ?= $(TRAVIS_TAG)
+
+docker-login: docker-validate
+	@docker login -u "$(DOCKER_USERNAME)" -p "$(DOCKER_PASSWORD)" $(DOCKER_REGISTRY); \
+
+docker-validate:
+	@if [ -z "$(DOCKER_USERNAME)" ]; then \
+		echo "DOCKER_USERNAME variable cannot be empty."; \
+		exit 1; \
+	fi; \
+	if [ -z "$(DOCKER_PASSWORD)" ]; then \
+		echo "DOCKER_PASSWORD variable cannot be empty."; \
+		exit 1; \
+	fi
 
 docker-build:
-	docker build -t $(DOCKER_IMAGE) .
+	@if [ -z "$(VERSION)" ]; then \
+		echo "VERSION variable cannot be empty."; \
+		exit 1; \
+	fi; \
+	if [ -z "$(DOCKER_ORG)" ]; then \
+		echo "DOCKER_ORG variable cannot be empty."; \
+		exit 1; \
+	fi; \
+	docker build -t $(DOCKER_REGISTRY)/$(DOCKER_ORG)/$(PROJECT):$(VERSION) .; \
 
-docker-push: docker-build
-	docker push $(DOCKER_IMAGE)
+docker-push: docker-login docker-build
+	docker push $(DOCKER_REGISTRY)/$(DOCKER_ORG)/$(PROJECT):$(VERSION); \
+	docker tag $(DOCKER_REGISTRY)/$(DOCKER_ORG)/$(PROJECT):$(VERSION) \
+		$(DOCKER_REGISTRY)/$(DOCKER_ORG)/$(PROJECT):latest; \
+	docker push $(DOCKER_REGISTRY)/$(DOCKER_ORG)/$(PROJECT):latest;