Merge pull request #22 from SafetyCulture/go113

Update to latest Go image 1.13.1 and use Go Modules

Author: filipesperandio

Dockerfile

@@ -1,4 +1,4 @@
-ARG BASE=1.9.3-alpine3.7
+ARG BASE=1.13.1-alpine3.10
 FROM golang:${BASE} as build
 
 WORKDIR /usr/src/app
@@ -8,12 +8,10 @@ RUN apk add --no-cache jq
 RUN export go_version=$(go version | cut -d ' ' -f 3) && \
     cat engine.json.template | jq '.version = .version + "/" + env.go_version' > ./engine.json
 
-COPY codeclimate-govet.go ./
+COPY codeclimate-govet.go go.mod go.sum ./
 RUN apk add --no-cache git
-RUN go get -t -d -v ./...
 RUN go build -o codeclimate-govet .
 
-
 FROM golang:${BASE}
 
 LABEL maintainer="Code Climate <hello@codeclimate.com>"

go.mod

@@ -0,0 +1,5 @@
+module github.com/codeclimate-community/codeclimate-govet
+
+go 1.13
+
+require github.com/codeclimate/cc-engine-go v0.0.0-20160217183426-55f9c825e2a9

go.sum

@@ -0,0 +1,2 @@
+github.com/codeclimate/cc-engine-go v0.0.0-20160217183426-55f9c825e2a9 h1:Wk8UDfEjmZtZI8guLovZZ1QXkbGIPWy2cpeYS2JgKPg=
+github.com/codeclimate/cc-engine-go v0.0.0-20160217183426-55f9c825e2a9/go.mod h1:A0vs4JxevyA0WJrMjU/5sedZBlICgsdPloAKENM2JmU=