[SECCOMP-31579] FIPS compliance

Dockerfile

@@ -7,7 +7,7 @@ ARG GOARCH="amd64"
 ARG SHA1="[no-sha]"
 ARG TAG="[no-tag]"
 
-RUN BUILD_DATE=$(date +%F-%T) CGO_ENABLED=0 GOOS=linux GOARCH=$GOARCH go build -o /redis_exporter \
+RUN BUILD_DATE=$(date +%F-%T) CGO_ENABLED=1 GOEXPERIMENT=boringcrypto GOOS=linux GOARCH=$GOARCH go build -o /redis_exporter \
     -ldflags  "-s -w -extldflags \"-static\" -X main.BuildVersion=$TAG -X main.BuildCommitSha=$SHA1 -X main.BuildDate=$BUILD_DATE" .
 
 RUN [ $GOARCH = "amd64" ]  && /redis_exporter -version || ls -la /redis_exporter

Makefile

@@ -67,15 +67,16 @@ upload-coverage:
 
 
 BUILD_DT:=$(shell date +%F-%T)
-GO_LDFLAGS:="-s -w -extldflags \"-static\" -X main.BuildVersion=${DRONE_TAG} -X main.BuildCommitSha=${DRONE_COMMIT_SHA} -X main.BuildDate=$(BUILD_DT)" 
+GO_LDFLAGS:="-s -w -extldflags \"-static\" -X main.BuildVersion=${DRONE_TAG} -X main.BuildCommitSha=${DRONE_COMMIT_SHA} -X main.BuildDate=$(BUILD_DT)"
 
 .PHONE: build-binaries
 build-binaries:
 	go install github.com/oliver006/gox@master
 
 	rm -rf .build | true
 
-	export CGO_ENABLED=0 ; \
+	export CGO_ENABLED=1 ; \
+	export GOEXPERIMENT=boringcrypto ; \
 	gox -os="linux windows freebsd netbsd openbsd"        -arch="amd64 386" -verbose -rebuild -ldflags $(GO_LDFLAGS) -output ".build/redis_exporter-${DRONE_TAG}.{{.OS}}-{{.Arch}}/{{.Dir}}" && \
 	gox -os="darwin solaris illumos"                      -arch="amd64"     -verbose -rebuild -ldflags $(GO_LDFLAGS) -output ".build/redis_exporter-${DRONE_TAG}.{{.OS}}-{{.Arch}}/{{.Dir}}" && \
 	gox -os="darwin"                                      -arch="arm64"     -verbose -rebuild -ldflags $(GO_LDFLAGS) -output ".build/redis_exporter-${DRONE_TAG}.{{.OS}}-{{.Arch}}/{{.Dir}}" && \

main.go

@@ -9,6 +9,8 @@ import (
 	"strconv"
 	"time"
 
+	_ "crypto/tls/fipsonly"
+
 	"github.com/prometheus/client_golang/prometheus"
 	log "github.com/sirupsen/logrus"