apiVersion: v1
kind: ConfigMap
metadata:
  name: ess-synapse-custom
  namespace: matrix
data:
  values.yaml: |
    synapse:
      logging:
        rootLevel: INFO
        levelOverrides:
          synapse.media.url_previewer: DEBUG
      additional:
        url-previews:
          config: |
            url_preview_enabled: true
            max_spider_size: 10M
            # Deine restlichen URL-Preview und Retention Settings hier...