Delete kube-register

1. kubelet can automatically register nodes, so we don't need to
register nodes.
2. When we remove a node from the cluster, the nova instance is
terminated. So the instance has no stop process to run unregister
script. Heat has a spec [1] to add stop deletion policy now. After
this function is merged, I will add unregister script back.

[1] https://review.openstack.org/#/c/243012/

Change-Id: I9b1ea0eda74f9bfba8b87c67c2bd063c62460336
Partial-Bug: #1511570

magnum/templates/kubernetes/fragments/kube-register.yaml

@@ -1,52 +0,0 @@
-#cloud-config
-merge_how: dict(recurse_array)+list(append)
-write_files:
-  - path: /usr/local/bin/kube-register
-    permissions: "0755"
-    owner: root
-    content: |
-      #!/bin/sh
-
-      . /etc/sysconfig/heat-params
-      KUBE_PROTOCOL="https"
-      KUBE_CONFIG=""
-      CURL_OPTIONS=""
-      if [ "$TLS_DISABLED" == "True" ]; then
-          KUBE_PROTOCOL="http"
-      else
-          KUBE_CONFIG="--kubeconfig=/srv/kubernetes/kubeconfig.yaml"
-          CURL_OPTIONS="--cacert /srv/kubernetes/ca.crt"
-          CURL_OPTIONS="$CURL_OPTIONS --key /srv/kubernetes/client.key"
-          CURL_OPTIONS="$CURL_OPTIONS --cert /srv/kubernetes/client.crt"
-      fi
-      master_url="$KUBE_PROTOCOL://$KUBE_MASTER_IP:$KUBE_API_PORT"
-      nova_instance_name=$(hostname -s)
-
-      # wait for master api
-      until curl -o /dev/null ${CURL_OPTIONS} -sf "${master_url}/healthz"; do
-        echo "waiting for kubernetes master"
-        sleep 1
-      done
-
-      if [ "$1" = "-u" ]; then
-      echo "unregistering minion $nova_instance_name"
-      kubectl -s ${master_url} ${KUBE_CONFIG} delete node/$nova_instance_name
-      else
-      echo "registering minion $nova_instance_name"
-      cpu=$(($(nproc) * 1000))
-      memory=$(awk '/MemTotal: /{print $2 * 1024}' /proc/meminfo)
-
-      cat <<EOF | kubectl create -s ${master_url} ${KUBE_CONFIG} -f-
-      apiVersion: v1
-      id: $nova_instance_name
-      kind: Node
-      resources:
-        capacity:
-          cpu: $cpu
-          memory: $memory
-      metadata:
-        name: $nova_instance_name
-      spec:
-         externalID: $nova_instance_name
-      EOF
-      fi

magnum/templates/kubernetes/kubeminion-coreos.yaml

@@ -129,12 +129,6 @@ resources:
       group: ungrouped
       config: {get_file: fragments/configure-docker-storage.sh}
 
-  kube_register:
-    type: OS::Heat::SoftwareConfig
-    properties:
-      group: ungrouped
-      config: {get_file: fragments/kube-register.yaml}
-
   configure_kubernetes_minion:
     type: OS::Heat::SoftwareConfig
     properties:
@@ -187,7 +181,6 @@ resources:
         - config: {get_resource: kube_examples}
         - config: {get_resource: add_to_docker_group}
         - config: {get_resource: configure_docker_storage}
-        - config: {get_resource: kube_register}
         - config: {get_resource: configure_kubernetes_minion}
         - config: {get_resource: docker_service}
         - config: {get_resource: enable_services}

magnum/templates/kubernetes/kubeminion-fedora-ironic.yaml

@@ -76,12 +76,6 @@ resources:
             $KUBE_MASTER_IP: {get_param: kube_master_ip}
             $WAIT_HANDLE: {get_resource: minion_wait_handle}
 
-  kube_register:
-    type: OS::Heat::SoftwareConfig
-    properties:
-      group: ungrouped
-      config: {get_file: fragments/kube-register.yaml}
-
   configure_kubernetes_minion:
     type: OS::Heat::SoftwareConfig
     properties:
@@ -138,7 +132,6 @@ resources:
         - config: {get_resource: write_heat_params}
         - config: {get_resource: kube_user}
         - config: {get_resource: kube_examples}
-        - config: {get_resource: kube_register}
         - config: {get_resource: configure_kubernetes_minion}
         - config: {get_resource: docker_service}
         - config: {get_resource: enable_services}

magnum/templates/kubernetes/kubeminion.yaml

@@ -239,12 +239,6 @@ resources:
       group: ungrouped
       config: {get_file: fragments/configure-docker-registry.sh}
 
-  kube_register:
-    type: OS::Heat::SoftwareConfig
-    properties:
-      group: ungrouped
-      config: {get_file: fragments/kube-register.yaml}
-
   configure_kubernetes_minion:
     type: OS::Heat::SoftwareConfig
     properties:
@@ -316,7 +310,6 @@ resources:
         - config: {get_resource: make_cert}
         - config: {get_resource: kube_examples}
         - config: {get_resource: configure_docker_storage}
-        - config: {get_resource: kube_register}
         - config: {get_resource: configure_kubernetes_minion}
         - config: {get_resource: network_service}
         - config: {get_resource: add_proxy}