diff --git a/docs/dns-stack.md b/docs/dns-stack.md index f1675127ab97286014704924f26c5c9defc279b6..09d60822712df1750f6aff43f4cfa4ca1242c66e 100644 --- a/docs/dns-stack.md +++ b/docs/dns-stack.md @@ -64,6 +64,10 @@ Custom options to be added to the kubernetes coredns plugin. Extra domains to be forwarded to the kubernetes coredns plugin. +### coredns_rewrite_block + +[Rewrite](https://coredns.io/plugins/rewrite/) plugin block to perform internal message rewriting. + ### coredns_external_zones Array of optional external zones to coredns forward queries to. It's injected into diff --git a/roles/kubernetes-apps/ansible/defaults/main.yml b/roles/kubernetes-apps/ansible/defaults/main.yml index 68f3c78568301378b7ee05d13c54c728d0edb552..8aa767f99f786d7579ca29b45ad40f6484e47c64 100644 --- a/roles/kubernetes-apps/ansible/defaults/main.yml +++ b/roles/kubernetes-apps/ansible/defaults/main.yml @@ -18,6 +18,13 @@ coredns_default_zone_cache_block: | # whoami # local +# coredns_rewrite_block: | +# rewrite stop { +# name regex (.*)\.my\.domain {1}.svc.cluster.local +# answer name (.*)\.svc\.cluster\.local {1}.my.domain +# } + + # dns_upstream_forward_extra_opts apply to coredns forward section as well as nodelocaldns upstream target forward section # dns_upstream_forward_extra_opts: # policy: sequential diff --git a/roles/kubernetes-apps/ansible/templates/coredns-config.yml.j2 b/roles/kubernetes-apps/ansible/templates/coredns-config.yml.j2 index 2fb409177e6920726a4c4c71f819e2cb21cdb870..0373780428da36fcd4eab4f157d216b90cab8846 100644 --- a/roles/kubernetes-apps/ansible/templates/coredns-config.yml.j2 +++ b/roles/kubernetes-apps/ansible/templates/coredns-config.yml.j2 @@ -38,6 +38,9 @@ data: health { lameduck 5s } +{% if coredns_rewrite_block is defined %} + {{ coredns_rewrite_block | indent(width=8, first=False) }} +{% endif %} ready kubernetes {{ dns_domain }} {% if coredns_kubernetes_extra_domains is defined %}{{ coredns_kubernetes_extra_domains }} {% endif %}{% if enable_coredns_reverse_dns_lookups %}in-addr.arpa ip6.arpa {% endif %}{ pods insecure