add docker and makefile

.dockerignore

@@ -0,0 +1,3 @@
+ddnsclient.yaml.sample
+README.md
+bin

.gitignore

@@ -1 +1,2 @@
-ddns-client.yaml
+ddnsclient.yaml
+bin

Dockerfile

@@ -0,0 +1,14 @@
+FROM golang:1.15 as base
+
+WORKDIR /go/src/ddnsclient
+ADD . /go/src/ddnsclient
+
+RUN go get -d -v ./...
+
+RUN go build -o /go/bin/ddnsclient cmd/main.go
+
+FROM gcr.io/distroless/base
+
+COPY --from=base /go/bin/ddnsclient /
+
+CMD ["/ddnsclient"]

Makefile

@@ -0,0 +1,31 @@
+GO := $(shell command -v go 2> /dev/null)
+DOCKER := $(shell command -v docker 2> /dev/null)
+RELEASE_VERSION ?= $(shell bash -c 'read -s -p "Release version: " pwd')
+
+.PHONY: build
+build:
+ifndef GO
+	@echo "go is required!"
+endif
+	@echo "building ddnsclient..."
+	@go build -o bin/ddnsclient cmd/main.go
+	@echo "module built!"
+
+.PHONY: deploy-image-latest
+deploy-image:
+ifndef DOCKER
+	@echo "docker is required!"
+endif
+	@echo "Pushing image ddnsclient:latest to docker hub..."
+	@docker push ddnsclient:latest
+	@echo "Image pushed!"
+
+.PHONY: deploy-Release
+deploy-Release:
+ifndef DOCKER
+	@echo "docker is required!"
+endif
+	@echo "Pushing image ddnsclient:$(RELEASE_VERSION) to docker hub..."
+	@docker push ddnsclient:$(RELEASE_VERSION)
+	@echo "Image pushed!"
+