Deploy kubelet and kube-apiserver as containers

kubelet via docker
kube-apiserver as a static pod

Fixed etcd service start to be more tolerant of slow start.

Workaround for kube_version to stay in download role, but not
download an files by creating a new "nothing" download entry.

roles/download/defaults/main.yml

@@ -15,8 +15,6 @@ calico_cni_version: v1.3.1
 weave_version: v1.5.0
 
 # Download URL's
-kubelet_download_url: "https://storage.googleapis.com/kargo/{{kube_version}}_kubernetes-kubelet"
-apiserver_download_url: "https://storage.googleapis.com/kargo/{{kube_version}}_kubernetes-apiserver"
 kubectl_download_url: "https://storage.googleapis.com/kargo/{{kube_version}}_kubernetes-kubectl"
 
 etcd_download_url: "https://storage.googleapis.com/kargo/{{etcd_version}}_etcd"
@@ -64,14 +62,6 @@ downloads:
     unarchive: true
     owner: "etcd"
     mode: "0755"
-  kubernetes_kubelet:
-    version: "{{kube_version}}"
-    dest: kubernetes/bin/kubelet
-    sha256: "{{vars['kube_checksum'][kube_version]['kubelet']}}"
-    source_url: "{{ kubelet_download_url }}"
-    url: "{{ kubelet_download_url }}"
-    owner: "kube"
-    mode: "0755"
   kubernetes_kubectl:
     dest: kubernetes/bin/kubectl
     version: "{{kube_version}}"
@@ -80,14 +70,8 @@ downloads:
     url: "{{ kubectl_download_url }}"
     owner: "kube"
     mode: "0755"
-  kubernetes_apiserver:
+  nothing:
-    dest: kubernetes/bin/kube-apiserver
+    enabled: false
-    version: "{{kube_version}}"
-    sha256: "{{vars['kube_checksum'][kube_version]['kube_apiserver']}}"
-    source_url: "{{ apiserver_download_url }}"
-    url: "{{ apiserver_download_url }}"
-    owner: "kube"
-    mode: "0755"
 
 download:
   enabled: "{{ file.enabled|default('true') }}"

roles/download/vars/kube_versions.yml

@@ -1,22 +1,12 @@
 kube_checksum:
     v1.2.2:
-        kube_apiserver: eb1bfd8b877052cbd1991b8c429a1d06661f4cb019905e20e128174f724e16de
         kubectl: 473e6924569fba30d4a50cecdc2cae5f31d97d1f662463e85b74a472105dcff4
-        kubelet: f16827dc7e7c82f0e215f0fc73eb01e2dfe91a2ec83f9cbcaf8d37c91b64fd3b
     v1.2.3:
-        kube_apiserver_checksum: ebaeeeb72cb29b358337b330617a96355ff2d08a5a523fc1a81beba36cc9d6f9
         kubectl_checksum: 394853edd409a721bcafe4f1360009ef9f845050719fe7d6fc7176f45cc92a8c
-        kubelet_checksum: 633bb41c51c5c0df0645dd60ba82b12eba39d009eb87bae9227de7d9a89c0797
     v1.2.4:
-        kube_apiserver: 6ac99b36b02968459e026fcfc234207c66064b5e11816b69dd8fc234b2ffec1e
         kubectl: dac61fbd506f7a17540feca691cd8a9d9d628d59661eebce788a50511f578897
-        kubelet: 4adaf40592248eef6fd4fa126464915ea41e624a70dc77178089760ed235e341
     v1.2.5:
-        kube_apiserver: fbe8296ad4b194c06f6802a126d35cd2887dc1aded308d4da2b580f270412b33
         kubectl: 5526a496a84701015485e32c86486e2f23599f7a865164f546e619c6a62f7f19
-        kubelet: cd15b929f0190876216f397c2c6e7aa8c08d3b047fd90b4980cd68c8f4896211
     v1.3.0:
-        kube_apiserver: 431cd312984a29f45590138e990d5c4d537b069b71f2587a72414fabc4fcffdd
         kubectl: f40b2d0ff33984e663a0dea4916f1cb9041abecc09b11f9372cdb8049ded95dc
-        kubelet: bd5f10ccb95fe6e95ddf7ad8a119195c27cb2bce4be6f80c1810ff1a2111496d
 kube_version: v1.3.0

roles/kubernetes/master/meta/main.yml

@@ -2,7 +2,5 @@
 dependencies:
   - role: download
     file: "{{ downloads.kubernetes_kubectl }}"
-  - role: download
-    file: "{{ downloads.kubernetes_apiserver }}"
   - { role: etcd }
   - { role: kubernetes/node }

roles/kubernetes/master/tasks/main.yml

@@ -1,52 +1,34 @@
 ---
+- include: pre-upgrade.yml
+
 - name: Copy kubectl bash completion
   copy:
     src: kubectl_bash_completion.sh
     dest: /etc/bash_completion.d/kubectl.sh
   when: ansible_os_family in ["Debian","RedHat"]
 
-- name: Copy kube-apiserver binary
-  command: rsync -piu "{{ local_release_dir }}/kubernetes/bin/kube-apiserver" "{{ bin_dir }}/kube-apiserver"
-  register: kube_apiserver_copy
-  changed_when: false
-
 - name: Copy kubectl binary
   command: rsync -piu "{{ local_release_dir }}/kubernetes/bin/kubectl" "{{ bin_dir }}/kubectl"
   changed_when: false
 
-- name: install | Write kube-apiserver systemd init file
-  template:
-    src: "kube-apiserver.service.j2"
-    dest: "/etc/systemd/system/kube-apiserver.service"
-    backup: yes
-  when: ansible_service_mgr == "systemd"
-  notify: restart kube-apiserver
-
-- name: install | Write kube-apiserver initd script
-  template:
-    src: "deb-kube-apiserver.initd.j2"
-    dest: "/etc/init.d/kube-apiserver"
-    owner: root
-    mode: 0755
-    backup: yes
-  when: ansible_service_mgr in ["sysvinit","upstart"] and ansible_os_family == "Debian"
-
-- name: Write kube-apiserver config file
-  template:
-    src: "kube-apiserver.j2"
-    dest: "{{ kube_config_dir }}/kube-apiserver.env"
-    backup: yes
-  notify: restart kube-apiserver
-
-- name: Allow apiserver to bind on both secure and insecure ports
-  shell: setcap cap_net_bind_service+ep {{ bin_dir }}/kube-apiserver
-  changed_when: false
-
 - meta: flush_handlers
 
-- include: start.yml
+- name: Write kube-apiserver manifest
-  with_items: "{{ groups['kube-master'] }}"
+  template:
-  when: "{{ hostvars[item].inventory_hostname == inventory_hostname }}"
+    src: manifests/kube-apiserver.manifest.j2
+    dest: "{{ kube_manifest_dir }}/kube-apiserver.manifest"
+  register: apiserver_manifest
+
+- name: restart kubelet
+  service:
+    name: kubelet
+    state: restarted
+  when: apiserver_manifest.changed
+
+- name: wait for the apiserver to be running
+  wait_for:
+    port: "{{kube_apiserver_insecure_port}}"
+    timeout: 60
 
 # Create kube-system namespace
 - name: copy 'kube-system' namespace manifest
@@ -61,17 +43,13 @@
   failed_when: False
   run_once: yes
 
-- name: wait for the apiserver to be running
-  wait_for:
-    port: "{{kube_apiserver_insecure_port}}"
-    timeout: 60
 
 - name: Create 'kube-system' namespace
   command: "{{ bin_dir }}/kubectl create -f /etc/kubernetes/kube-system-ns.yml"
   changed_when: False
   when: kubesystem|failed and inventory_hostname == groups['kube-master'][0]
 
-# Write manifests
+# Write other manifests
 - name: Write kube-controller-manager manifest
   template:
     src: manifests/kube-controller-manager.manifest.j2
@@ -81,9 +59,3 @@
   template:
     src: manifests/kube-scheduler.manifest.j2
     dest: "{{ kube_manifest_dir }}/kube-scheduler.manifest"
-
-- name: restart kubelet
-  service:
-    name: kubelet
-    state: restarted
-  changed_when: false

roles/kubernetes/master/tasks/pre-upgrade.yml

@@ -0,0 +1,25 @@
+---
+- name: "Pre-upgrade | check for kube-apiserver unit file"
+  stat:
+    path: /etc/systemd/system/kube-apiserver.service
+  register: kube_apiserver_service_file
+
+- name: "Pre-upgrade | check for kube-apiserver init script"
+  stat:
+    path: /etc/init.d/kube-apiserver
+  register: kube_apiserver_init_script
+
+- name: "Pre-upgrade | stop kube-apiserver if service defined"
+  service:
+    name: kube-apiserver
+    state: stopped
+  when: (kube_apiserver_service_file.stat.exists|default(False) or kube_apiserver_init_script.stat.exists|default(False))
+
+- name: "Pre-upgrade | remove kube-apiserver service definition"
+  file:
+    path: "{{ item }}"
+    state: absent
+  when: (kube_apiserver_service_file.stat.exists|default(False) or kube_apiserver_init_script.stat.exists|default(False))
+  with_items:
+    - /etc/systemd/system/kube-apiserver.service
+    - /etc/init.d/kube-apiserver

roles/kubernetes/master/tasks/start.yml

@@ -1,22 +0,0 @@
----
-- name: Pause
-  pause: seconds=10
-
-- name: reload systemd
-  command: systemctl daemon-reload
-  when: ansible_service_mgr == "systemd" and restart_apimaster is defined and restart_apimaster == True
-
-- name: reload kube-apiserver
-  service:
-    name: kube-apiserver
-    state: restarted
-    enabled: yes
-  when: ( restart_apimaster is defined and restart_apimaster == True) or
-        secret_changed | default(false)
-
-- name: Enable apiserver
-  service:
-    name: kube-apiserver
-    enabled: yes
-    state: started
-  when: restart_apimaster is not defined or restart_apimaster == False

roles/kubernetes/master/templates/deb-kube-apiserver.initd.j2

@@ -1,118 +0,0 @@
-#!/bin/bash
-#
-### BEGIN INIT INFO
-# Provides:   kube-apiserver 
-# Required-Start:    $local_fs $network $syslog
-# Required-Stop:
-# Default-Start:     2 3 4 5
-# Default-Stop:      0 1 6
-# Short-Description: The Kubernetes apiserver
-# Description:
-#   The Kubernetes apiserver.
-### END INIT INFO
-
-
-# PATH should only include /usr/* if it runs after the mountnfs.sh script
-PATH=/sbin:/usr/sbin:/bin:/usr/bin
-DESC="The Kubernetes apiserver"
-NAME=kube-apiserver
-DAEMON={{ bin_dir }}/kube-apiserver
-DAEMON_LOG_FILE=/var/log/$NAME.log
-PIDFILE=/var/run/$NAME.pid
-SCRIPTNAME=/etc/init.d/$NAME
-DAEMON_USER=root
-
-# Exit if the package is not installed
-[ -x "$DAEMON" ] || exit 0
-
-# Read configuration variable file if it is present
-[ -r /etc/kubernetes/$NAME.env ] && . /etc/kubernetes/$NAME.env
-
-# Define LSB log_* functions.
-# Depend on lsb-base (>= 3.2-14) to ensure that this file is present
-# and status_of_proc is working.
-. /lib/lsb/init-functions
-
-#
-# Function that starts the daemon/service
-#
-do_start()
-{
-        # Return
-        #   0 if daemon has been started
-        #   1 if daemon was already running
-        #   2 if daemon could not be started
-        start-stop-daemon --start --quiet --background --no-close \
-                --make-pidfile --pidfile $PIDFILE \
-                --exec $DAEMON -c $DAEMON_USER --test > /dev/null \
-                || return 1
-        start-stop-daemon --start --quiet --background --no-close \
-                --make-pidfile --pidfile $PIDFILE \
-                --exec $DAEMON -c $DAEMON_USER -- \
-                $DAEMON_ARGS >> $DAEMON_LOG_FILE 2>&1 \
-                || return 2
-}
-
-#
-# Function that stops the daemon/service
-#
-do_stop()
-{
-        # Return
-        #   0 if daemon has been stopped
-        #   1 if daemon was already stopped
-        #   2 if daemon could not be stopped
-        #   other if a failure occurred
-        start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --pidfile $PIDFILE --name $NAME
-        RETVAL="$?"
-        [ "$RETVAL" = 2 ] && return 2
-        # Many daemons don't delete their pidfiles when they exit.
-        rm -f $PIDFILE
-        return "$RETVAL"
-}
-
-
-case "$1" in
-  start)
-        log_daemon_msg "Starting $DESC" "$NAME"
-        do_start
-        case "$?" in
-                0|1) log_end_msg 0 || exit 0 ;;
-                2) log_end_msg 1 || exit 1 ;;
-        esac
-        ;;
-  stop)
-        log_daemon_msg "Stopping $DESC" "$NAME"
-        do_stop
-        case "$?" in
-                0|1) log_end_msg 0 ;;
-                2) exit 1 ;;
-        esac
-        ;;
-  status)
-        status_of_proc -p $PIDFILE "$DAEMON" "$NAME" && exit 0 || exit $?
-        ;;
-
-  restart|force-reload)
-        log_daemon_msg "Restarting $DESC" "$NAME"
-        do_stop
-        case "$?" in
-          0|1)
-                do_start
-                case "$?" in
-                        0) log_end_msg 0 ;;
-                        1) log_end_msg 1 ;; # Old process is still running
-                        *) log_end_msg 1 ;; # Failed to start
-                esac
-                ;;
-          *)
-                # Failed to stop
-                log_end_msg 1
-                ;;
-        esac
-        ;;
-  *)
-        echo "Usage: $SCRIPTNAME {start|stop|status|restart|force-reload}" >&2
-        exit 3
-        ;;
-esac

roles/kubernetes/master/templates/kube-apiserver.j2

@@ -1,58 +0,0 @@
-###
-# kubernetes system config
-#
-# The following values are used to configure the kube-apiserver
-
-{% if ansible_service_mgr in ["sysvinit","upstart"] %}
-# Logging directory
-KUBE_LOGGING="--log-dir={{ kube_log_dir }} --logtostderr=true"
-{% else %}
-# logging to stderr means we get it in the systemd journal
-KUBE_LOGGING="--logtostderr=true"
-{% endif %}
-
-# Apiserver Log level, 0 is debug
-KUBE_LOG_LEVEL="--v={{ kube_log_level | default('2') }}"
-
-# Should this cluster be allowed to run privileged docker containers
-KUBE_ALLOW_PRIV="--allow_privileged=true"
-
-# The port on the local server to listen on.
-KUBE_API_PORT="--insecure-port={{kube_apiserver_insecure_port}} --secure-port={{ kube_apiserver_port }}"
-
-# Insecure API address (default is localhost)
-KUBE_API_INSECURE_BIND="--insecure-bind-address={{ kube_apiserver_insecure_bind_address | default('127.0.0.1') }}"
-
-# Address range to use for services
-KUBE_SERVICE_ADDRESSES="--service-cluster-ip-range={{ kube_service_addresses }}"
-
-# Location of the etcd cluster
-KUBE_ETCD_SERVERS="--etcd_servers={{ etcd_access_endpoint }}"
-
-# Bind address for secure endpoint
-KUBE_API_ADDRESS="--bind-address={{ ip | default(ansible_default_ipv4.address) }}"
-
-# default admission control policies
-KUBE_ADMISSION_CONTROL="--admission-control=NamespaceLifecycle,LimitRanger,ServiceAccount,ResourceQuota"
-
-# RUNTIME API CONFIGURATION (e.g. enable extensions)
-KUBE_RUNTIME_CONFIG="{% if kube_api_runtime_config is defined %}{% for conf in kube_api_runtime_config %}--runtime-config={{ conf }} {% endfor %}{% endif %}"
-
-# TLS CONFIGURATION
-KUBE_TLS_CONFIG="--tls_cert_file={{ kube_cert_dir }}/apiserver.pem --tls_private_key_file={{ kube_cert_dir }}/apiserver-key.pem --client_ca_file={{ kube_cert_dir }}/ca.pem"
-
-# Add you own!
-KUBE_API_ARGS="--token_auth_file={{ kube_token_dir }}/known_tokens.csv --basic-auth-file={{ kube_users_dir }}/known_users.csv --service_account_key_file={{ kube_cert_dir }}/apiserver-key.pem --advertise-address={{ ip | default(ansible_default_ipv4.address) }}"
-
-{% if cloud_provider is defined and cloud_provider == "openstack" %}
-KUBELET_CLOUDPROVIDER="--cloud-provider={{ cloud_provider }} --cloud-config={{ kube_config_dir }}/cloud_config"
-{% else %}
-{# TODO: gce and aws don't need the cloud provider to be set? #}
-KUBELET_CLOUDPROVIDER=""
-{% endif %}
-
-{% if ansible_service_mgr in ["sysvinit","upstart"] %}
-DAEMON_ARGS="$KUBE_LOGGING $KUBE_LOG_LEVEL $KUBE_ALLOW_PRIV $KUBE_API_PORT $KUBE_API_INSECURE_BIND \
-$KUBE_SERVICE_ADDRESSES $KUBE_ETCD_SERVERS $KUBE_ADMISSION_CONTROL $KUBE_RUNTIME_CONFIG \
-$KUBE_TLS_CONFIG $KUBE_API_ARGS $KUBELET_CLOUDPROVIDER"
-{% endif %}

roles/kubernetes/master/templates/kube-apiserver.service.j2

@@ -1,30 +0,0 @@
-[Unit]
-Description=Kubernetes API Server
-Documentation=https://github.com/GoogleCloudPlatform/kubernetes
-Wants=etcd-proxy.service
-After=etcd-proxy.service
-
-[Service]
-EnvironmentFile=/etc/kubernetes/kube-apiserver.env
-User=kube
-ExecStart={{ bin_dir }}/kube-apiserver \
-        $KUBE_LOGTOSTDERR \
-        $KUBE_LOG_LEVEL \
-        $KUBE_ETCD_SERVERS \
-        $KUBE_API_ADDRESS \
-        $KUBE_API_PORT \
-        $KUBE_API_INSECURE_BIND \
-        $KUBELET_PORT \
-        $KUBE_ALLOW_PRIV \
-        $KUBE_SERVICE_ADDRESSES \
-        $KUBE_ADMISSION_CONTROL \
-        $KUBE_RUNTIME_CONFIG \
-        $KUBE_TLS_CONFIG \
-        $KUBE_API_ARGS \
-        $KUBELET_CLOUDPROVIDER
-Restart=on-failure
-Type=notify
-LimitNOFILE=65536
-
-[Install]
-WantedBy=multi-user.target

roles/kubernetes/master/templates/manifests/kube-apiserver.manifest.j2

@@ -2,6 +2,7 @@ apiVersion: v1
 kind: Pod
 metadata:
   name: kube-apiserver
+  namespace: kube-system
 spec:
   hostNetwork: true
   containers:
@@ -12,12 +13,14 @@ spec:
     - apiserver
     - --advertise-address={{ ip | default(ansible_default_ipv4.address) }}
     - --etcd-servers={{ etcd_access_endpoint }}
+    - --insecure-bind-address={{ kube_apiserver_insecure_bind_address | default('127.0.0.1') }}
     - --admission-control=NamespaceLifecycle,NamespaceExists,LimitRanger,SecurityContextDeny,ServiceAccount,ResourceQuota
     - --service-cluster-ip-range={{ kube_service_addresses }}
     - --client-ca-file={{ kube_cert_dir }}/ca.pem
     - --basic-auth-file={{ kube_users_dir }}/known_users.csv
     - --tls-cert-file={{ kube_cert_dir }}/apiserver.pem
     - --tls-private-key-file={{ kube_cert_dir }}/apiserver-key.pem
+    - --token-auth-file={{ kube_token_dir }}/known_tokens.csv
     - --service-account-key-file={{ kube_cert_dir }}/apiserver-key.pem
     - --secure-port={{ kube_apiserver_port }}
     - --insecure-port={{ kube_apiserver_insecure_port }}
@@ -26,16 +29,13 @@ spec:
     - --runtime-config={{ conf }}
 {%   endfor %}
 {% endif %}
-    - --token-auth-file={{ kube_token_dir }}/known_tokens.csv
     - --v={{ kube_log_level | default('2') }}
     - --allow-privileged=true
-    ports:
+{% if cloud_provider is defined and cloud_provider == "openstack" %}
-    - containerPort: {{ kube_apiserver_port }}
+    - --cloud-provider={{ cloud_provider }}
-      hostPort: {{ kube_apiserver_port }}
+    - --cloud-config={{ kube_config_dir }}/cloud_config
-      name: https
+{% endif %}
-    - containerPort: {{ kube_apiserver_insecure_port }}
+    - 2>&1 >> {{ kube_log_dir }}/kube-apiserver.log
-      hostPort: {{ kube_apiserver_insecure_port }}
-      name: local
     volumeMounts:
     - mountPath: {{ kube_config_dir }}
       name: kubernetes-config
@@ -43,6 +43,8 @@ spec:
     - mountPath: /etc/ssl/certs
       name: ssl-certs-host
       readOnly: true
+    - mountPath: /var/log/
+      name: logfile
   volumes:
   - hostPath:
       path: {{ kube_config_dir }}
@@ -50,3 +52,6 @@ spec:
   - hostPath:
       path: /etc/ssl/certs/
     name: ssl-certs-host
+  - hostPath:
+      path: /var/log/
+    name: logfile

roles/kubernetes/node/meta/main.yml

@@ -1,5 +1,5 @@
 ---
 dependencies:
-  - role: download
+  - role: download #For kube_version
-    file: "{{ downloads.kubernetes_kubelet }}"
+    file: "{{ downloads.nothing }}"
   - role: kubernetes/secrets

roles/kubernetes/node/tasks/install.yml

@@ -14,7 +14,7 @@
   when: ansible_service_mgr in ["sysvinit","upstart"] and ansible_os_family == "RedHat"
   notify: restart kubelet
 
-- name: install | Install kubelet binary
+- name: install | Install kubelet launch script
-  command: rsync -piu "{{ local_release_dir }}/kubernetes/bin/kubelet" "{{ bin_dir }}/kubelet"
+  template: src=kubelet-container.j2 dest="{{ bin_dir }}/kubelet" owner=kube mode=0755 backup=yes
-  register: kubelet_copy
+  register: kubelet_launcher
   changed_when: false

roles/kubernetes/node/tasks/main.yml

@@ -26,7 +26,7 @@
 - name: Restart kubelet if binary changed
   command: /bin/true
   notify: restart kubelet
-  when: kubelet_copy.stdout_lines
+  when: kubelet_launcher.changed
 
 # reload-systemd
 - meta: flush_handlers

roles/kubernetes/node/templates/kubelet-container.j2

@@ -0,0 +1,15 @@
+#!/bin/bash
+/usr/bin/docker run --privileged --rm \
+--net=host --pid=host --name=kubelet \
+-v /etc/cni:/etc/cni:ro \
+-v /opt/cni:/opt/cni:ro \
+-v /etc/kubernetes:/etc/kubernetes \
+-v /sys:/sys \
+-v /dev:/dev \
+-v /var/lib/docker:/var/lib/docker \
+-v /var/run:/var/run \
+-v /var/lib/kubelet:/var/lib/kubelet \
+{{ hyperkube_image_repo }}:{{ hyperkube_image_tag}} \
+nsenter --target=1 --mount --wd=. -- \
+./hyperkube kubelet \
+$@

roles/kubernetes/node/templates/kubelet.j2

@@ -6,7 +6,6 @@ KUBE_LOGGING="--log-dir={{ kube_log_dir }} --logtostderr=true"
 KUBE_LOGGING="--logtostderr=true"
 {% endif %}
 KUBE_LOG_LEVEL="--v={{ kube_log_level | default('2') }}"
-KUBE_ALLOW_PRIV="--allow_privileged=true"
 {% if inventory_hostname in groups['kube-node'] %}
 KUBELET_API_SERVER="--api_servers={% for host in groups['kube-master'] %}https://{{ hostvars[host]['access_ip'] | default(hostvars[host]['ip'] | default(hostvars[host]['ansible_default_ipv4']['address'])) }}:{{ kube_apiserver_port }}{% if not loop.last %},{% endif %}{% endfor %}"
 {% endif %}
@@ -15,7 +14,7 @@ KUBELET_ADDRESS="--address={{ ip | default("0.0.0.0") }}"
 # The port for the info server to serve on
 # KUBELET_PORT="--port=10250"
 # You may leave this blank to use the actual hostname
-KUBELET_HOSTNAME="--hostname_override={{ inventory_hostname }}"
+KUBELET_HOSTNAME="--hostname-override={{ inventory_hostname }}"
 {% if inventory_hostname in groups['kube-master'] and inventory_hostname not in groups['kube-node'] %}
 KUBELET_REGISTER_NODE="--register-node=false"
 {% endif %}
@@ -26,12 +25,12 @@ KUBELET_ARGS="--cluster_dns={{ dns_server }} --cluster_domain={{ dns_domain }} -
 KUBELET_ARGS="--kubeconfig={{ kube_config_dir}}/kubelet.kubeconfig --config={{ kube_manifest_dir }}"
 {% endif %}
 {% if kube_network_plugin is defined and kube_network_plugin in ["calico", "weave"] %}
-KUBELET_NETWORK_PLUGIN="--network_plugin=cni --network-plugin-dir=/etc/cni/net.d"
+KUBELET_NETWORK_PLUGIN="--network-plugin=cni --network-plugin-dir=/etc/cni/net.d"
 {% elif kube_network_plugin is defined and kube_network_plugin == "weave" %}
 DOCKER_SOCKET="--docker-endpoint=unix:/var/run/weave/weave.sock"
 {% endif %}
 # Should this cluster be allowed to run privileged docker containers
-KUBE_ALLOW_PRIV="--allow_privileged=true"
+KUBE_ALLOW_PRIV="--allow-privileged=true"
 {% if cloud_provider is defined and cloud_provider == "openstack" %}
 KUBELET_CLOUDPROVIDER="--cloud-provider={{ cloud_provider }} --cloud-config={{ kube_config_dir }}/cloud_config"
 {% else %}

roles/kubernetes/node/templates/kubelet.service.j2

@@ -22,7 +22,10 @@ ExecStart={{ bin_dir }}/kubelet \
 		$KUBELET_REGISTER_NODE \
 		$KUBELET_NETWORK_PLUGIN \
 		$KUBELET_CLOUDPROVIDER
-Restart=on-failure
+ExecStartPre=-/usr/bin/docker rm -f kubelet
+ExecReload=/usr/bin/docker restart kubelet
+Restart=always
+RestartSec=10s
 
 [Install]
 WantedBy=multi-user.target

roles/network_plugin/calico/templates/calicoctl-container.j2

@@ -1,6 +1,6 @@
 #!/bin/bash
 /usr/bin/docker run --privileged --rm \
---net=host -e ETCD_AUTHORITY={{ etcd_authority }} \
+--net=host --pid=host -e ETCD_AUTHORITY={{ etcd_authority }} \
 -v /usr/bin/docker:/usr/bin/docker \
 -v /var/run/docker.sock:/var/run/docker.sock \
 -v /var/run/calico:/var/run/calico \

roles/uploads/defaults/main.yml

@@ -60,15 +60,6 @@ downloads:
     owner: "etcd"
     mode: "0755"
 
-  - name: kubernetes-kubelet
-    version: "{{kube_version}}"
-    dest: kubernetes/bin/kubelet
-    sha256: "{{vars['kube_checksum'][kube_version]['kubelet']}}"
-    source_url: "{{ kube_download_url }}/kubelet"
-    url: "{{ kube_download_url }}/kubelet"
-    owner: "kube"
-    mode: "0755"
-
   - name: kubernetes-kubectl
     dest: kubernetes/bin/kubectl
     version: "{{kube_version}}"
@@ -77,12 +68,3 @@ downloads:
     url: "{{ kube_download_url }}/kubectl"
     owner: "kube"
     mode: "0755"
-
-  - name: kubernetes-apiserver
-    dest: kubernetes/bin/kube-apiserver
-    version: "{{kube_version}}"
-    sha256: "{{vars['kube_checksum'][kube_version]['kube_apiserver']}}"
-    source_url: "{{ kube_download_url }}/kube-apiserver"
-    url: "{{ kube_download_url }}/kube-apiserver"
-    owner: "kube"
-    mode: "0755"

roles/uploads/vars/kube_versions.yml

@@ -2,21 +2,16 @@ kube_checksum:
     v1.2.2:
         kube_apiserver: eb1bfd8b877052cbd1991b8c429a1d06661f4cb019905e20e128174f724e16de
         kubectl: 473e6924569fba30d4a50cecdc2cae5f31d97d1f662463e85b74a472105dcff4
-        kubelet: f16827dc7e7c82f0e215f0fc73eb01e2dfe91a2ec83f9cbcaf8d37c91b64fd3b
     v1.2.3:
         kube_apiserver_checksum: ebaeeeb72cb29b358337b330617a96355ff2d08a5a523fc1a81beba36cc9d6f9
         kubectl_checksum: 394853edd409a721bcafe4f1360009ef9f845050719fe7d6fc7176f45cc92a8c
-        kubelet_checksum: 633bb41c51c5c0df0645dd60ba82b12eba39d009eb87bae9227de7d9a89c0797
     v1.2.4:
         kube_apiserver: 6ac99b36b02968459e026fcfc234207c66064b5e11816b69dd8fc234b2ffec1e
         kubectl: dac61fbd506f7a17540feca691cd8a9d9d628d59661eebce788a50511f578897
-        kubelet: 4adaf40592248eef6fd4fa126464915ea41e624a70dc77178089760ed235e341
     v1.2.5:
         kube_apiserver: fbe8296ad4b194c06f6802a126d35cd2887dc1aded308d4da2b580f270412b33
         kubectl: 5526a496a84701015485e32c86486e2f23599f7a865164f546e619c6a62f7f19
-        kubelet: cd15b929f0190876216f397c2c6e7aa8c08d3b047fd90b4980cd68c8f4896211
     v1.3.0:
         kube_apiserver: 431cd312984a29f45590138e990d5c4d537b069b71f2587a72414fabc4fcffdd
         kubectl: f40b2d0ff33984e663a0dea4916f1cb9041abecc09b11f9372cdb8049ded95dc
-        kubelet: bd5f10ccb95fe6e95ddf7ad8a119195c27cb2bce4be6f80c1810ff1a2111496d
 kube_version: v1.3.0