# emberstack/kubernetes-reflector

Custom Kubernetes controller that can be used to replicate secrets, configmaps and certificates.

Repository: https://github.com/emberstack/kubernetes-reflector
Canonical: https://ross.abutalabs.com/products/kubernetes-reflector
Language: C#
License: MIT
License Family: permissive
Topics: kubernetes, controller, secrets, kubernetes-cluster, kubernetes-controller, kubectl, configmap, certificate, cert-manager, k8s
Last push: 2026-08-17T21:24:03+00:00

## Health v2 (maintenance only)
Score: 94/100 (v2, computed 2026-09-03T02:39:23.370411+00:00)
- activity 98, release rhythm 86, longevity 100
- inputs: {"age_days": 2694, "days_push": 16, "days_rel": 19, "gap_med": 2, "n_releases_24m": 118}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1663, forks 124 (observed 2026-08-28T04:05:18.774479+00:00)

## What it is
Reflector is a Kubernetes controller that monitors secrets, configmaps, and certificates and automatically replicates them across namespaces. It is deployed as a cluster addon, typically via Helm, and supports cert-manager certificate rotation propagation.

## Use cases
- sync a TLS secret across all namespaces
- replicate cert-manager certificates to other namespaces
- mirror configmaps between namespaces in a k8s cluster
- avoid duplicating docker-registry secrets per namespace
- propagate wildcard certificate ingress secrets cluster-wide

## When to choose
- you need secrets or configmaps available in multiple namespaces without manual copying
- you use cert-manager and need certificates mirrored to other namespaces
- you want a lightweight, Helm-installable controller with amd64/arm64 support

## When to avoid
- you need cross-cluster replication rather than within a single cluster
- your platform already provides a native secret-sync mechanism (e.g., external secrets operator or k8s 1.29+ sync features)
- you only need secrets in one namespace

## Facets
- artifact type: service
- maturity: active
- function: container-orchestration, deployment, configuration-management
- domain: self-hosted
- platform: self-hosted
- tags: kubernetes-controller, secrets-replication, configmap-replication, cert-manager, helm-chart, namespace-sync, kubernetes, devops, containers, docker

## Member repositories
- emberstack/kubernetes-reflector (main) score 94

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:18.774479+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:44:31.537807+00:00, confidence not recorded.
  - readme: https://github.com/emberstack/kubernetes-reflector (fetched 2026-08-28T04:05:18.774479+00:00, sha 8777d38841cb)
- Data as of 2026-08-30T08:39:29.467469+00:00.