Build: Fix multi-arch docker builds

Change-Id: I3968065215b696256ee819e2062ab1d3cadfcbcf
diff --git a/core/fluxcd-reconciler/Makefile b/core/fluxcd-reconciler/Makefile
index 0ef3b6c..3cdf26a 100644
--- a/core/fluxcd-reconciler/Makefile
+++ b/core/fluxcd-reconciler/Makefile
@@ -1,5 +1,6 @@
 repo_name ?= giolekva
 podman ?= docker
+docker_flags=--provenance=false --sbom=false
 ifeq ($($(podman)), $(podman))
 manifest_dest=docker://docker.io/$(repo_name)/fluxcd-reconciler:latest
 endif
@@ -33,18 +34,17 @@
 push_arm64: clean build_arm64
 	mkdir tmp
 	cp -r ../../charts tmp/
-	$(podman) build --platform linux/arm64 --tag=$(repo_name)/fluxcd-reconciler:arm64 .
+	$(podman) build --platform linux/arm64 --tag=$(repo_name)/fluxcd-reconciler:arm64 $(docker_flags) .
 	rm -rf tmp
 	$(podman) push $(repo_name)/fluxcd-reconciler:arm64
 
 push_amd64: clean build_amd64
 	mkdir tmp
 	cp -r ../../charts tmp/
-	$(podman) build --platform linux/amd64 --tag=$(repo_name)/fluxcd-reconciler:amd64 .
+	$(podman) build --platform linux/amd64 --tag=$(repo_name)/fluxcd-reconciler:amd64 $(docker_flags) .
 	rm -rf tmp
 	$(podman) push $(repo_name)/fluxcd-reconciler:amd64
 
 push: push_arm64 push_amd64
 	$(podman) manifest create $(repo_name)/fluxcd-reconciler:latest $(repo_name)/fluxcd-reconciler:arm64 $(repo_name)/fluxcd-reconciler:amd64
-	$(podman) manifest push $(repo_name)/fluxcd-reconciler:latest $(manifest_dest)
-	$(podman) manifest rm $(repo_name)/fluxcd-reconciler:latest
+	$(podman) manifest push --purge $(repo_name)/fluxcd-reconciler:latest $(manifest_dest)