building rhel8 opm in payload image

Signed-off-by: Jordan <[email protected]>

Author: grokspawn

operator-registry.Dockerfile

@@ -1,10 +1,14 @@
-FROM registry.ci.openshift.org/ocp/builder:rhel-9-golang-1.21-openshift-4.16 AS builder
-
+FROM registry.ci.openshift.org/ocp/builder:rhel-8-golang-1.21-openshift-4.16 AS builder-rhel8
 ENV GOPATH /go
 ENV PATH $GOPATH/bin:/usr/local/go/bin:$PATH
-
 WORKDIR /src
+COPY . .
+RUN make build/registry cross
 
+FROM registry.ci.openshift.org/ocp/builder:rhel-9-golang-1.21-openshift-4.16 AS builder
+ENV GOPATH /go
+ENV PATH $GOPATH/bin:/usr/local/go/bin:$PATH
+WORKDIR /src
 COPY . .
 RUN make build/registry cross
 
@@ -13,9 +17,12 @@ RUN CGO_ENABLED=0 go build -mod=vendor -tags netgo -ldflags "-w" ./vendor/github
 
 FROM registry.ci.openshift.org/ocp/4.16:base-rhel9
 
+COPY --from=builder-rhel8 /src/bin/opm /bin/registry/opm-rhel8
+
 COPY --from=builder /src/bin/* /bin/registry/
 COPY --from=builder /src/grpc-health-probe /bin/grpc_health_probe
 
+
 RUN ln -s /bin/registry/* /bin
 
 RUN mkdir /registry