add image pull secret name variable to makefile

Makefile

@@ -60,6 +60,12 @@ KRP_IMAGE_BASE ?= quay.io/brancz/kube-rbac-proxy
 # kube-rbac-proxy image tag
 KRP_IMAGE_TAG ?= v0.18.0
 
+# image pull secret name: eg regcred
+IMAGE_PULL_SECRET_NAME ?=
+
+image_pull_secrets_patch = $(shell printf '[{"op":"add","path":"/spec/template/spec/imagePullSecrets","value":[{"name":"%s"}]}]' '$(strip $(IMAGE_PULL_SECRET_NAME))' )
+
+
 .PHONY: all
 all: docker-build
 
@@ -125,6 +131,7 @@ uninstall: kustomize ## Uninstall CRDs from the K8s cluster specified in ~/.kube
 deploy: kustomize ## Deploy controller to the K8s cluster specified in ~/.kube/config.
 	cd config/manager && $(KUSTOMIZE) edit set image controller=${IMG}
 	cd config/default && $(KUSTOMIZE) edit set image kube-rbac-proxy=$(KRP_IMAGE_BASE):$(KRP_IMAGE_TAG)
+	if [ -n "$(IMAGE_PULL_SECRET_NAME)" ]; then cd config/default && $(KUSTOMIZE) edit add patch --kind Deployment --group apps --version v1 --name controller-manager --patch '${image_pull_secrets_patch}'; fi
 	$(KUSTOMIZE) build config/default | kubectl apply -f -
 
 .PHONY: undeploy
@@ -188,6 +195,7 @@ bundle: kustomize operator-sdk ## Generate bundle manifests and metadata, then v
 	cd config/manager && $(KUSTOMIZE) edit set image controller=$(IMG)
 	cd config/manifests/bases && $(KUSTOMIZE) edit set annotation containerImage:$(IMG)
 	cd config/default && $(KUSTOMIZE) edit set image kube-rbac-proxy=$(KRP_IMAGE_BASE):$(KRP_IMAGE_TAG)
+	if [ -n "$(IMAGE_PULL_SECRET_NAME)" ]; then cd config/default && $(KUSTOMIZE) edit add patch --kind Deployment --group apps --version v1 --name controller-manager --patch '${image_pull_secrets_patch}'; fi
 	$(KUSTOMIZE) build config/manifests | $(OPERATOR_SDK) generate bundle $(BUNDLE_GEN_FLAGS)
 	@printf "%s\n" '' 'LABEL com.redhat.openshift.versions="v4.12"' 'LABEL com.redhat.delivery.operator.bundle=true' 'LABEL com.redhat.delivery.backport=true' >> bundle.Dockerfile
 	@printf "%s\n" '' '  # OpenShift annotations.' '  com.redhat.openshift.versions: v4.12' >> bundle/metadata/annotations.yaml
@@ -240,3 +248,4 @@ catalog-build: opm ## Build a catalog image.
 .PHONY: catalog-push
 catalog-push: ## Push a catalog image.
 	$(MAKE) docker-push IMG=$(CATALOG_IMG)
+

docs/manual-installation.md

@@ -58,4 +58,5 @@ You can use the operator (including the kube-rbac-proxy) images from your own pr
    ```shell
    make deploy IMG=<my-private-registry>/nginx-ingress-operator:2.3.1 KRP_IMAGE_BASE=<my-private-registry>/kube-rbac-proxy
    ```
-   **Note: If you need to use a different `kube-rbac-proxy` version than the default, use the `KRP_IMAGE_TAG` variable**
+   **Note: If you need to use a different `kube-rbac-proxy` version than the default, use the `KRP_IMAGE_TAG` variable**
+   **Note: To use an image pull secret, you can specify the IMAGE_PULL_SECRET_NAME variable, eg IMAGE_PULL_SECRET_NAME=regcred**