Dockerize

.travis.yml

@@ -1,7 +1,31 @@
-sudo: false
+dist: trusty
+
 language: go
+
 go:
-  - 1.8
-before_script: go get github.com/mitchellh/gox
-script: go build
-after_success: gox -osarch="linux/amd64" && echo $TRAVIS_TEST_RESULT
+- 1.8.x
+- 1.9.x
+
+cache:
+  directories:
+  - ${TRAVIS_BUILD_DIR}/vendor
+
+services:
+- docker
+
+install:
+- go get github.com/golang/dep/cmd/dep
+- dep ensure
+
+before_script:
+- docker login -u="$DOCKER_USERNAME" -p="$DOCKER_PASSWORD";
+
+script:
+- make build
+
+after_success:
+- if [ -n "$TRAVIS_TAG" ]; then
+  make TAG=${TRAVIS_TAG} deploy;
+  fi
+- make TAG=latest deploy
+- make TAG=${TRAVIS_COMMIT} deploy

Dockerfile

@@ -0,0 +1,20 @@
+FROM debian
+
+# Non-root user `app`
+RUN useradd app
+WORKDIR /home/app
+
+COPY bin/ipify-api ./
+
+ENV LOGGING_LEVEL WARNING
+
+COPY docker-entrypoint.sh ./
+
+RUN chown -R app:app /home/app
+
+# Change to user `app`
+USER app
+
+ENTRYPOINT ["./docker-entrypoint.sh"]
+
+CMD ["./ipify-api"]

Gopkg.toml

@@ -0,0 +1,30 @@
+# Gopkg.toml example
+#
+# Refer to https://golang.github.io/dep/docs/Gopkg.toml.html
+# for detailed Gopkg.toml documentation.
+#
+# required = ["github.com/user/thing/cmd/thing"]
+# ignored = ["github.com/user/project/pkgX", "bitbucket.org/user/project/pkgA/pkgY"]
+#
+# [[constraint]]
+#   name = "github.com/user/project"
+#   version = "1.0.0"
+#
+# [[constraint]]
+#   name = "github.com/user/project2"
+#   branch = "dev"
+#   source = "github.com/myfork/project2"
+#
+# [[override]]
+#   name = "github.com/x/y"
+#   version = "2.4.0"
+#
+# [prune]
+#   non-go = false
+#   go-tests = true
+#   unused-packages = true
+
+
+[prune]
+  go-tests = true
+  unused-packages = true

Makefile

@@ -0,0 +1,24 @@
+TAG=latest
+BIN=ipify-api
+IMAGE=unchartedsky/$(BIN)
+
+build:
+	dep ensure
+	go build -o bin/$(BIN) .
+
+image: build
+	dep ensure
+	GOOS=linux GOARCH=amd64 go build -o bin/$(BIN) .
+	docker build -t $(IMAGE):$(TAG) .
+
+deploy: image
+	docker push $(IMAGE):$(TAG)
+
+.PHONY: clean
+
+clean:
+	rm -rf bin/
+
+cleanall: clean
+	rm -rf vendor/
+

docker-entrypoint.sh

@@ -0,0 +1,9 @@
+#!/bin/sh
+set -e
+
+if [ "$1" != "./ipify-api" ]; then
+  exec "$@"
+  exit $?
+fi
+
+exec "$@" -logtostderr=true -stderrthreshold=${LOGGING_LEVEL}