Update versions

Dockerfile

@@ -1,27 +1,23 @@
-FROM golang:1.13.4-alpine as build
-RUN mkdir -p /go/src/github.com/aosapps/drone-sonar-plugin
-WORKDIR /go/src/github.com/aosapps/drone-sonar-plugin 
-COPY *.go ./
-COPY vendor ./vendor/
-RUN GOOS=linux GOARCH=amd64 CGO_ENABLED=0 go build -o drone-sonar
+FROM golang:1.17-alpine as build
 
-FROM openjdk:11.0.8-jre
+WORKDIR /go/src/github.com/aosapps/drone-sonar-plugin
 
-ARG SONAR_VERSION=4.5.0.2216
-ARG SONAR_SCANNER_CLI=sonar-scanner-cli-${SONAR_VERSION}
-ARG SONAR_SCANNER=sonar-scanner-${SONAR_VERSION}
+COPY *.go /go/src/github.com/aosapps/drone-sonar-plugin/
 
-RUN apt-get update \
-    && apt-get install -y nodejs curl \
-    && apt-get clean
+RUN	go mod init github.com/aosapps/drone-sonar-plugin \
+	&& go mod tidy \
+	&& GOOS=linux GOARCH=amd64 CGO_ENABLED=0 go build -o drone-sonar
+
+FROM sonarsource/sonar-scanner-cli:4.6
 
 COPY --from=build /go/src/github.com/aosapps/drone-sonar-plugin/drone-sonar /bin/
-WORKDIR /bin
 
-RUN curl https://binaries.sonarsource.com/Distribution/sonar-scanner-cli/${SONAR_SCANNER_CLI}.zip -so /bin/${SONAR_SCANNER_CLI}.zip
-RUN unzip ${SONAR_SCANNER_CLI}.zip \
-    && rm ${SONAR_SCANNER_CLI}.zip 
+WORKDIR /bin
 
-ENV PATH $PATH:/bin/${SONAR_SCANNER}/bin
+RUN	curl -fsSO https://letsencrypt.org/certs/lets-encrypt-r3-cross-signed.pem \
+	&& keytool -import -v -trustcacerts -cacerts -noprompt -storepass changeit \
+		-file lets-encrypt-r3-cross-signed.pem \
+		-alias "C=US, O=Let's Encrypt, CN=R3" \
+	&& rm lets-encrypt-r3-cross-signed.pem
 
 ENTRYPOINT /bin/drone-sonar

main.go

@@ -2,8 +2,9 @@ package main
 
 import (
 	"fmt"
-	"github.com/codegangsta/cli"
 	"os"
+
+	"github.com/urfave/cli"
 )
 
 var build = "1" // build number set at compile time