Create Containerfile.operator files in preparation to move to RHTAP (#…

…102)

* Create Containerfile.operator files in preparation to move to RHTAP

Signed-off-by: Subbarao Meduri <smeduri@redhat.com>

* refactor to override specific targets

Signed-off-by: Subbarao Meduri <smeduri@redhat.com>

---------

Signed-off-by: Subbarao Meduri <smeduri@redhat.com>

Containerfile.operator

@@ -0,0 +1,22 @@
+# Copyright Contributors to the Open Cluster Management project
+# Licensed under the Apache License 2.0
+
+FROM brew.registry.redhat.io/rh-osbs/openshift-golang-builder:rhel_8_1.20 AS builder
+
+WORKDIR $GOPATH/src/github.com/thanos-io/thanos
+
+COPY . $GOPATH/src/github.com/thanos-io/thanos
+
+RUN git update-index --refresh; make build -f Makefile.rhtap
+
+# -----------------------------------------------------------------------------
+
+FROM registry.access.redhat.com/ubi8/ubi-minimal:latest
+
+LABEL maintainer="The ACM Thanos maintainers"
+
+COPY --from=builder /go/bin/thanos /bin/thanos
+
+RUN microdnf update -y && microdnf clean all
+
+ENTRYPOINT [ "/bin/thanos" ]

Makefile.rhtap

@@ -0,0 +1,23 @@
+include Makefile
+
+# Override build, crossbuild targets from Makefile
+# to use promu to build dynamic binaries
+.PHONY: build
+build: ## Builds Thanos binary using `promu`.
+build: check-git deps $(PROMU)
+	@echo ">> building Thanos binary in $(PREFIX)"
+	@go mod vendor && $(PROMU) -c ".promu.prow.yaml" build -v --cgo --prefix $(PREFIX)
+
+GIT_BRANCH=$(shell $(GIT) rev-parse --abbrev-ref HEAD)
+.PHONY: crossbuild
+crossbuild: ## Builds all binaries for all platforms.
+ifeq ($(GIT_BRANCH), main)
+crossbuild: | $(PROMU)
+	@echo ">> crossbuilding all binaries"
+	# we only care about below two for the main branch
+	@go mod vendor && $(PROMU) -c ".promu.prow.yaml" crossbuild -v --cgo -p linux/amd64
+else
+crossbuild: | $(PROMU)
+	@echo ">> crossbuilding all binaries"
+	@go mod vendor && $(PROMU) -c ".promu.prow.yaml"  crossbuild -v --cgo
+endif