simplify docker image build locally

.goreleaser.yml

@@ -4,7 +4,6 @@ project_name: minio-operator
 
 before:
   hooks:
-    # you may remove this if you don't use vgo
     - go mod tidy
 builds:
   -
@@ -14,6 +13,8 @@ builds:
       - amd64
     env:
       - CGO_ENABLED=0
+    ldflags:
+      - -s -w -X main.Version={{.Tag}}
     flags:
       - -trimpath
 dockers:
@@ -29,3 +30,4 @@ dockers:
     extra_files:
       - LICENSE
       - README.md
+      - ca-certificates.crt

Dockerfile

@@ -1,30 +1,8 @@
-FROM golang:1.14
-
-ADD go.mod /go/src/github.com/minio/minio-operator/go.mod
-ADD go.sum /go/src/github.com/minio/minio-operator/go.sum
-WORKDIR /go/src/github.com/minio/minio-operator/
-
-# Get Certificates
-RUN apt-get update -y && apt-get install -y ca-certificates
-
-# Get dependencies - will also be cached if we won't change mod/sum
-RUN go mod download
-
-ADD . /go/src/github.com/minio/minio-operator/
-WORKDIR /go/src/github.com/minio/minio-operator/
-
-ENV CGO_ENABLED=0
-
-ARG ldflags
-ENV env_ldflags=$ldflags
-
-RUN go build -ldflags "$env_ldflags" -a -o minio-operator .
-
 FROM scratch
 
 LABEL maintainer="MinIO Inc <dev@min.io>"
 
-COPY --from=0 /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
-COPY --from=0 /go/src/github.com/minio/minio-operator/minio-operator .
+COPY ca-certificates.crt /etc/ssl/certs/
+COPY minio-operator /minio-operator
 
 CMD ["/minio-operator"]

Makefile

@@ -7,14 +7,15 @@ all: build
 
 verify: govet gotest
 
-build:
-	@docker build -t $(TAG) --build-arg ldflags=$(LDFLAGS) .
+build: verify
+	@CGO_ENABLED=0 go build -trimpath --ldflags $(LDFLAGS)
+	@docker build -t $(TAG) .
 
 install: all
 	@docker push $(TAG)
 
 govet:
-	@CGO_ENABLED=0 go vet ./...
+	@go vet ./...
 
 gotest:
 	@go test -race ./...