post-start.erb

#!/bin/bash -e

[ -z "$DEBUG" ] || set -x

kubectl="/var/vcap/packages/kubernetes/bin/kubectl --kubeconfig=/var/vcap/jobs/kubeconfig/config/kubeconfig"

# Deleting docker0 route as a workaround to a routing conflict
# between the docker0 bridge and the CNI interface
# TODO: remove this once an upstream docker release is available,
#       which removes or overrides the docker bridge IP
#       See: https://github.com/cloudfoundry-community/docker-boshrelease/pull/82
#
docker0_addr=$(route -n | grep docker0 | awk '{print $1}')
docker0_gw=$(route -n | grep docker0 | awk '{print $2}')
docker0_netmask=$(route -n | grep docker0 | awk '{print $3}')
if [ "${docker0_addr}" != "" ]
then
  route del -net $docker0_addr gw $docker0_gw netmask $docker0_netmask dev docker0
fi

DOCKER_SOCKET=unix:///var/vcap/sys/run/docker/docker.sock
CONTAINER_IMAGE_DIR=/var/vcap/packages/kubernetes/container-images

load_container() {
    path=$1

    echo "loading cached container: ${path}"
    if sudo /var/vcap/jobs/kubelet/packages/docker/bin/docker -H ${DOCKER_SOCKET} load < "${path}"; then
      echo "successfully loaded container: ${path}"
    else
      echo "failed to load container: ${path}"
      exit 1
    fi
}

load_cached_containers() {
    for img in ${CONTAINER_IMAGE_DIR}/*.tgz; do
        load_container ${img}
    done
}

load_cached_containers

TIMEOUT=120

node_name=$($kubectl get nodes -o wide -L spec.ip | grep "<%= spec.ip %>" | awk '{print $1}')

if timeout "$TIMEOUT" /var/vcap/jobs/kubelet/bin/ensure_kubelet_up_and_running
then
  ${kubectl} uncordon ${node_name}
  ${kubectl} get nodes ${node_name} | grep -e ' Ready '
  echo "kubelet post-start checks succeeded"
else
  echo "kubelet failed post-start checks after $TIMEOUT seconds"
  exit 1
fi