📂 update Red Hat specific files

Build.mak

@@ -0,0 +1,38 @@
+
+GIT_VERSION ?= $(shell git describe --tags --always --dirty)
+
+LDFLAGS=-buildid= -X sigs.k8s.io/release-utils/version.gitVersion=$(GIT_VERSION) \
+        -X sigs.k8s.io/release-utils/version.gitCommit=$(GIT_HASH) \
+        -X sigs.k8s.io/release-utils/version.gitTreeState=$(GIT_TREESTATE) \
+        -X sigs.k8s.io/release-utils/version.buildDate=$(BUILD_DATE)
+
+.PHONY: 
+cross-platform: cosign-darwin-arm64 cosign-darwin-amd64 cosign-linux-amd64 cosign-linux-arm64 cosign-linux-ppc64le cosign-linux-s390x cosign-windows ## Build all distributable (cross-platform) binaries
+
+.PHONY:	cosign-darwin-arm64
+cosign-darwin-arm64: ## Build for mac M1
+	env CGO_ENABLED=0 GOOS=darwin GOARCH=arm64 go build -o cosign-darwin-arm64 -trimpath -ldflags "$(LDFLAGS) -w -s" ./cmd/cosign
+
+.PHONY: cosign-darwin-amd64
+cosign-darwin-amd64:  ## Build for Darwin (macOS)
+	env CGO_ENABLED=0 GOOS=darwin GOARCH=amd64 go build -o cosign-darwin-amd64 -trimpath -ldflags "$(LDFLAGS) -w -s" ./cmd/cosign
+
+.PHONY: cosign-linux-amd64 
+cosign-linux-amd64: ## Build for Linux amd64
+	env CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o cosign-linux-amd64 -trimpath -ldflags "$(LDFLAGS) -w -s" ./cmd/cosign
+
+.PHONY: cosign-linux-arm64
+cosign-linux-arm64: ## Build for Linux arm64
+	env CGO_ENABLED=0 GOOS=linux GOARCH=arm64 go build -o cosign-linux-arm64 -trimpath -ldflags "$(LDFLAGS) -w -s" ./cmd/cosign
+
+.PHONY: cosign-linux-ppc64le
+cosign-linux-ppc64le: ## Build for Linux ppc64le
+	env CGO_ENABLED=0 GOOS=linux GOARCH=ppc64le go build -o cosign-linux-ppc64le -trimpath -ldflags "$(LDFLAGS) -w -s" ./cmd/cosign
+
+.PHONY: cosign-linux-s390x
+cosign-linux-s390x:  ## Build for Linux s390x
+	env CGO_ENABLED=0 GOOS=linux GOARCH=s390x go build -o cosign-linux-s390x -trimpath -ldflags "$(LDFLAGS) -w -s" ./cmd/cosign
+
+.PHONY: cosign-windows
+cosign-windows: ## Build for Windows
+	env CGO_ENABLED=0 GOOS=windows GOARCH=amd64 go build -o cosign-windows-amd64 -trimpath -ldflags "$(LDFLAGS) -w -s" ./cmd/cosign

Dockerfile

@@ -5,7 +5,11 @@ WORKDIR /cosign
 COPY . .
 USER root
 RUN git config --global --add safe.directory /cosign
-RUN make cross
+
+RUN make cosign-linux-amd64
+RUN make cosign-darwin-amd64
+RUN make cosign-windows
+
 RUN gzip cosign-darwin-amd64
 RUN gzip cosign-windows-amd64
 

redhat/overlays/Build.mak

@@ -0,0 +1,38 @@
+
+GIT_VERSION ?= $(shell git describe --tags --always --dirty)
+
+LDFLAGS=-buildid= -X sigs.k8s.io/release-utils/version.gitVersion=$(GIT_VERSION) \
+        -X sigs.k8s.io/release-utils/version.gitCommit=$(GIT_HASH) \
+        -X sigs.k8s.io/release-utils/version.gitTreeState=$(GIT_TREESTATE) \
+        -X sigs.k8s.io/release-utils/version.buildDate=$(BUILD_DATE)
+
+.PHONY: 
+cross-platform: cosign-darwin-arm64 cosign-darwin-amd64 cosign-linux-amd64 cosign-linux-arm64 cosign-linux-ppc64le cosign-linux-s390x cosign-windows ## Build all distributable (cross-platform) binaries
+
+.PHONY:	cosign-darwin-arm64
+cosign-darwin-arm64: ## Build for mac M1
+	env CGO_ENABLED=0 GOOS=darwin GOARCH=arm64 go build -o cosign-darwin-arm64 -trimpath -ldflags "$(LDFLAGS) -w -s" ./cmd/cosign
+
+.PHONY: cosign-darwin-amd64
+cosign-darwin-amd64:  ## Build for Darwin (macOS)
+	env CGO_ENABLED=0 GOOS=darwin GOARCH=amd64 go build -o cosign-darwin-amd64 -trimpath -ldflags "$(LDFLAGS) -w -s" ./cmd/cosign
+
+.PHONY: cosign-linux-amd64 
+cosign-linux-amd64: ## Build for Linux amd64
+	env CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o cosign-linux-amd64 -trimpath -ldflags "$(LDFLAGS) -w -s" ./cmd/cosign
+
+.PHONY: cosign-linux-arm64
+cosign-linux-arm64: ## Build for Linux arm64
+	env CGO_ENABLED=0 GOOS=linux GOARCH=arm64 go build -o cosign-linux-arm64 -trimpath -ldflags "$(LDFLAGS) -w -s" ./cmd/cosign
+
+.PHONY: cosign-linux-ppc64le
+cosign-linux-ppc64le: ## Build for Linux ppc64le
+	env CGO_ENABLED=0 GOOS=linux GOARCH=ppc64le go build -o cosign-linux-ppc64le -trimpath -ldflags "$(LDFLAGS) -w -s" ./cmd/cosign
+
+.PHONY: cosign-linux-s390x
+cosign-linux-s390x:  ## Build for Linux s390x
+	env CGO_ENABLED=0 GOOS=linux GOARCH=s390x go build -o cosign-linux-s390x -trimpath -ldflags "$(LDFLAGS) -w -s" ./cmd/cosign
+
+.PHONY: cosign-windows
+cosign-windows: ## Build for Windows
+	env CGO_ENABLED=0 GOOS=windows GOARCH=amd64 go build -o cosign-windows-amd64 -trimpath -ldflags "$(LDFLAGS) -w -s" ./cmd/cosign

redhat/overlays/Dockerfile

@@ -5,7 +5,11 @@ WORKDIR /cosign
 COPY . .
 USER root
 RUN git config --global --add safe.directory /cosign
-RUN make cross
+
+RUN make cosign-linux-amd64
+RUN make cosign-darwin-amd64
+RUN make cosign-windows
+
 RUN gzip cosign-darwin-amd64
 RUN gzip cosign-windows-amd64