Merge pull request #2165 from aojea/ahosts

don't use loopback addresses on the nodes resolv.conf file

Author: k8s-ci-robot

images/base/files/usr/local/bin/entrypoint

@@ -337,7 +337,8 @@ enable_network_magic(){
   # first we need to detect an IP to use for reaching the docker host
   local docker_host_ip
   docker_host_ip="$( (getent ahostsv4 'host.docker.internal' | head -n1 | cut -d' ' -f1) || true)"
-  if [[ -z "${docker_host_ip}" ]]; then
+  # if the ip doesn't exist or is a loopback address use the default gateway
+  if [[ -z "${docker_host_ip}" ]] || [[ $docker_host_ip =~ ^127\.[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
     docker_host_ip=$(ip -4 route show default | cut -d' ' -f3)
   fi
 

pkg/build/nodeimage/defaults.go

@@ -20,4 +20,4 @@ package nodeimage
 const DefaultImage = "kindest/node:latest"
 
 // DefaultBaseImage is the default base image used
-const DefaultBaseImage = "kindest/base:v20210327-a8dff87f@sha256:d25665e921b61ab44d0627ce5a0ef82145e4c2c126e1a938d003bf4087349542"
+const DefaultBaseImage = "kindest/base:v20210328-c17ca167@sha256:0311870f4d35b0f68e2fedb5d703a552a8e7eb438acc67a3bd13982c2bda7487"