Enable CGO (#68)

* enable cgo

Signed-off-by: zhujian <jiazhu@redhat.com>

* change golang base image to bullseye

Signed-off-by: zhujian <jiazhu@redhat.com>

---------

Signed-off-by: zhujian <jiazhu@redhat.com>

Dockerfile

@@ -1,12 +1,10 @@
-FROM golang:1.19 AS builder
+FROM golang:1.19-bullseye AS builder
 WORKDIR /go/src/github.com/open-cluster-management.io/managed-serviceaccount
 COPY . .
-ENV GO_PACKAGE github.com/open-cluster-management.io/managed-serviceaccount
-ENV GOFLAGS ""
 RUN go env
-RUN go build -a -o manager cmd/manager/main.go
-RUN go build -a -o agent cmd/agent/main.go
+RUN make build-manager
+RUN make build-agent
 
 FROM registry.access.redhat.com/ubi8/ubi-minimal:latest
-COPY --from=builder /go/src/github.com/open-cluster-management.io/managed-serviceaccount/manager /
-COPY --from=builder /go/src/github.com/open-cluster-management.io/managed-serviceaccount/agent /
+COPY --from=builder /go/src/github.com/open-cluster-management.io/managed-serviceaccount/bin/manager /
+COPY --from=builder /go/src/github.com/open-cluster-management.io/managed-serviceaccount/bin/agent /

Makefile

@@ -13,6 +13,9 @@ else
 GOBIN=$(shell go env GOBIN)
 endif
 
+export CGO_ENABLED  = 1
+export GOFLAGS ?=
+
 # Setting SHELL to bash allows bash commands to be executed by recipes.
 # This is a requirement for 'setup-envtest.sh' in the test target.
 # Options are set to exit when a recipe line exits non-zero or a piped command fails.
@@ -60,9 +63,13 @@ test: manifests generate fmt vet ## Run tests.
 
 ##@ Build
 
-build: generate fmt vet ## Build manager binary.
-	go build -o bin/manager cmd/manager/main.go
-	go build -o bin/agent cmd/agent/main.go
+build: generate fmt vet build-manager build-agent
+
+build-manager:
+	go build -a -o bin/manager cmd/manager/main.go
+
+build-agent:
+	go build -a -o bin/agent cmd/agent/main.go
 
 build-e2e:
 	go test -c -o bin/e2e ./e2e/