add build setup for docker image

Dockerfile

@@ -0,0 +1,24 @@
+# Build status-go in a Go builder container
+FROM golang:1.10-alpine as builder
+
+ARG build_tags
+ARG build_flags
+
+RUN apk add --no-cache git make gcc musl-dev linux-headers
+
+ENV REPO=/go/src/github.com/status-im/p2p-health-bot
+
+RUN mkdir -p ${REPO}
+ADD . ${REPO}
+RUN cd ${REPO} && go get && go build
+
+# Copy the binary to the second image
+FROM alpine:latest
+
+RUN apk add --no-cache ca-certificates bash
+
+ENV REPO=/go/src/github.com/status-im/p2p-health-bot
+
+COPY --from=builder ${REPO}/p2p-health-bot /usr/local/bin/
+
+EXPOSE 8080

Makefile

@@ -0,0 +1,4 @@
+all: docker-image
+
+docker-image:
+	docker build -t statusteam/p2p-health-bot .