rancher/docker compatible fix of json issue

Co-authored-by: Jonas Rutishauser <[email protected]>

Author: pellmont

Dockerfile

@@ -13,4 +13,4 @@ RUN set -e \
 #   The original behaviour was to include kube-system.conf before all other namespaces.
 RUN set -e \
  && sed -i '/^#.*kube-system/,/^$/{H; d} ; /#.*namespace annotations/,/^$/{ /^$/G }' /templates/fluent.conf \
- && sed -i '/format3/d' /templates/kubernetes.conf
+ && sed -i '/format3/ s!/[|]!/|^!' /templates/kubernetes.conf