add official Dockerfile (#104)

.gitignore

@@ -1 +1,2 @@
 dist/
+VERSION

Dockerfile

@@ -0,0 +1,33 @@
+FROM golang:1.11.10-alpine as builder
+MAINTAINER FullStory Engineering
+
+# currently, a module build requires gcc (so Go tool can build
+# module-aware versions of std library; it ships only w/ the
+# non-module versions)
+RUN apk update && apk add --no-cache ca-certificates git gcc g++ libc-dev
+# create non-privileged group and user
+RUN addgroup -S grpcurl && adduser -S grpcurl -G grpcurl
+
+WORKDIR /tmp/fullstorydev/grpcurl
+# copy just the files/sources we need to build grpcurl
+COPY VERSION *.go go.* /tmp/fullstorydev/grpcurl/
+COPY cmd /tmp/fullstorydev/grpcurl/cmd
+# and build a completely static binary (so we can use
+# scratch as basis for the final image)
+ENV CGO_ENABLED=0
+ENV GOOS=linux
+ENV GOARCH=amd64
+ENV GO111MODULE=on
+RUN go build -o /grpcurl \
+    -ldflags "-w -extldflags \"-static\" -X \"main.version=$(cat VERSION)\"" \
+    ./cmd/grpcurl
+
+# New FROM so we have a nice'n'tiny image
+FROM scratch
+WORKDIR /
+COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
+COPY --from=builder /etc/passwd /etc/passwd
+COPY --from=builder /grpcurl /bin/grpcurl
+USER grpcurl
+
+ENTRYPOINT ["/bin/grpcurl"]

Makefile

@@ -25,6 +25,12 @@ release:
 	@GO111MODULE=off go get github.com/goreleaser/goreleaser
 	goreleaser --rm-dist
 
+.PHONY: docker
+docker:
+	@echo $(dev_build_version) > VERSION
+	docker build -t fullstorydev/grpcurl:$(dev_build_version) .
+	@rm VERSION
+
 .PHONY: checkgofmt
 checkgofmt:
 	gofmt -s -l .

cmd/grpcurl/grpcurl.go

@@ -8,6 +8,7 @@ import (
 	"fmt"
 	"io"
 	"os"
+	"path/filepath"
 	"strings"
 	"time"
 
@@ -161,7 +162,7 @@ func main() {
 		os.Exit(0)
 	}
 	if *printVersion {
-		fmt.Fprintf(os.Stderr, "%s %s\n", os.Args[0], version)
+		fmt.Fprintf(os.Stderr, "%s %s\n", filepath.Base(os.Args[0]), version)
 		os.Exit(0)
 	}
 

go.mod

@@ -2,7 +2,7 @@ module github.com/fullstorydev/grpcurl
 
 require (
 	github.com/golang/protobuf v1.3.1
-	github.com/jhump/protoreflect v1.4.1
+	github.com/jhump/protoreflect v1.4.4
 	golang.org/x/net v0.0.0-20190311183353-d8887717615a
 	google.golang.org/grpc v1.21.0
 )

go.sum

@@ -7,8 +7,8 @@ github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5y
 github.com/golang/protobuf v1.3.1 h1:YF8+flBXS5eO826T4nzqPrxfhQThhXl0YzfuUPu4SBg=
 github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
-github.com/jhump/protoreflect v1.4.1 h1:tgahjuElRiJthp9JfaMUFxabBVIytT/lnMSadY5kMjM=
-github.com/jhump/protoreflect v1.4.1/go.mod h1:gZ3i/BeD62fjlaIL0VW4UDMT70CTX+3m4pOnAlJ0BX8=
+github.com/jhump/protoreflect v1.4.4 h1:kySdALZUh7xRtW6UoZjjHtlR8k7rLzx5EXJFRvsO5UY=
+github.com/jhump/protoreflect v1.4.4/go.mod h1:gZ3i/BeD62fjlaIL0VW4UDMT70CTX+3m4pOnAlJ0BX8=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
 golang.org/x/net v0.0.0-20180530234432-1e491301e022/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=