From 717ee92934a8e0e23fb641c018d14ca06062e8b0 Mon Sep 17 00:00:00 2001 From: JessiaDing Date: Sat, 10 Oct 2015 15:31:26 +0000 Subject: [PATCH] update dns doc --- docs/admin/dns.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/docs/admin/dns.md b/docs/admin/dns.md index c50187bc38..a154c75436 100644 --- a/docs/admin/dns.md +++ b/docs/admin/dns.md @@ -52,8 +52,8 @@ supports forward lookups (A records) and service lookups (SRV records). ## How it Works -The running DNS pod holds 3 containers - skydns, etcd (a private instance which skydns uses), -and a Kubernetes-to-skydns bridge called kube2sky. The kube2sky process +The running DNS pod holds 4 containers - skydns, etcd (a private instance which skydns uses), +a Kubernetes-to-skydns bridge called kube2sky, and a health check called healthz. The kube2sky process watches the Kubernetes master for changes in Services, and then writes the information to etcd, which skydns reads. This etcd instance is not linked to any other etcd clusters that might exist, including the Kubernetes master.