fix: static builds

Author: christophwitzko

.github/workflows/ci.yml

@@ -32,6 +32,8 @@ jobs:
           go-version: 1.15
       - uses: actions/checkout@v2
       - run: go build ./cmd/semantic-release/
+        env:
+          CGO_ENABLED: 0
       - run: go test -v ./...
       - run: ./semantic-release --dry --allow-no-changes --no-ci
         env:

Dockerfile

@@ -1,17 +1,10 @@
-FROM golang:alpine AS builder
-ARG VERSION
-
+FROM alpine AS certs
 RUN apk update && apk add --no-cache git ca-certificates && update-ca-certificates
 
-WORKDIR $GOPATH/src/semantic-release
-COPY . .
-
-RUN GOOS=linux GOARCH=amd64 CGO_ENABLED=0 go build -a --installsuffix cgo -ldflags="-extldflags '-static' -s -w -X main.SRVERSION=$VERSION" -o /go/bin/semantic-release ./cmd/semantic-release/
-
-
 FROM scratch
+ARG VERSION
 
-COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
-COPY --from=builder /go/bin/semantic-release /
+COPY --from=certs /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
+COPY "./bin/semantic-release_v${VERSION}_linux_amd64" /semantic-release
 
 ENTRYPOINT ["/semantic-release"]

scripts/release

@@ -1,12 +1,11 @@
 #!/bin/bash
 
-set -e
-
-CGO_ENABLED=0
+set -euo pipefail
 
 ./semantic-release --ghr --version-file --prerelease -u ./npm-package/package.json
 export VERSION=$(cat .version)
 
+export CGO_ENABLED=0
 gox -parallel 4 -osarch="linux/amd64 darwin/amd64 linux/arm windows/amd64" -ldflags="-extldflags '-static' -s -w -X main.SRVERSION=$VERSION" -output="bin/{{.Dir}}_v"$VERSION"_{{.OS}}_{{.Arch}}" ./cmd/semantic-release/
 
 cd bin/ && shasum -a 256 * > ./semantic-release_v${VERSION}_checksums.txt && cd -