Márcio Fernandesreplicator
Kubernetes Replicator (mittwald/kubernetes‑replicator) is a lightweight controller that automatically copies Secrets and ConfigMaps between namespaces. It is ideal for sharing resources like wildcard TLS certificates generated by cert‑manager across multiple namespaces without manual copying.
Replicator watches for annotations on a source Secret and keeps synchronized copies updated in the target namespaces. It preserves custom metadata and removes cert‑manager‑specific annotations from the replicated secrets to avoid conflicts. When cert‑manager renews a certificate, Replicator automatically updates all replicated copies.
helm repo add mittwald https://helm.mittwald.de
kubectl create namespace replicator
helm repo update
helm upgrade --install replicator mittwald/kubernetes-replicator \
--namespace replicator
Setup
Using flux for reconciliation.
kubectl kustomize deploy/flux | kubectl apply -f -