Allow using podman by setting new make rules (#213)

Resolves: #184

Signed-off-by: Sergio Arroutbi <[email protected]>

Makefile

@@ -126,6 +126,15 @@ docker-build: test ## Build docker image with the manager.
 docker-push: ## Push docker image with the manager.
 	docker push ${IMG}
 
+# Podman alternatives rules for constructing software
+.PHONY: podman-build
+podman-build: test ## Build podman image with the manager.
+	podman build -t ${IMG} .
+
+.PHONY: podman-push
+podman-push: ## Push podman image with the manager.
+	podman push ${IMG}
+
 # PLATFORMS defines the target platforms for  the manager image be build to provide support to multiple
 # architectures. (i.e. make docker-buildx IMG=myregistry/mypoperator:0.0.1). To use this option you need to:
 # - able to use docker buildx . More info: https://docs.docker.com/build/buildx/
@@ -260,6 +269,14 @@ bundle-build: ## Build the bundle image.
 bundle-push: ## Push the bundle image.
 	$(MAKE) docker-push IMG=$(BUNDLE_IMG)
 
+.PHONY: podman-bundle-build
+podman-bundle-build: ## Build the bundle image.
+	podman build -f bundle.Dockerfile -t $(BUNDLE_IMG) .
+
+.PHONY: podman-bundle-push
+podman-bundle-push: ## Push the bundle image.
+	$(MAKE) podman-push IMG=$(BUNDLE_IMG)
+
 .PHONY: opm
 OPM = ./bin/opm
 opm: ## Download opm locally if necessary.