support the upstream 'addons' nonsense

This commit is contained in:
Jeff Bean 2015-06-17 19:00:11 -04:00 committed by Eric Paris
parent c2e4df7c87
commit 374658ef01
12 changed files with 748 additions and 1 deletions

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@ -29,6 +29,14 @@
tags:
- masters
# launch addons, like dns
- hosts: masters
sudo: yes
roles:
- kubernetes-addons
tags:
- addons
# install kubernetes on the nodes
- hosts: nodes
sudo: yes

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local_temp_addon_dir: /tmp/kubernetes/addons

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#!/bin/bash
# Copyright 2015 The Kubernetes Authors All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# The business logic for whether a given object should be created
# was already enforced by salt, and /etc/kubernetes/addons is the
# managed result is of that. Start everything below that directory.
# Parameters
# $1 path to add-ons
# LIMITATIONS
# 1. controllers are not updated unless their name is changed
# 3. Services will not be updated unless their name is changed,
# but for services we acually want updates without name change.
# 4. Json files are not handled at all. Currently addons must be
# in yaml files
# 5. exit code is probably not always correct (I haven't checked
# carefully if it works in 100% cases)
# 6. There are no unittests
# 8. Will not work if the total length of paths to addons is greater than
# bash can handle. Probably it is not a problem: ARG_MAX=2097152 on GCE.
# 9. Performance issue: yaml files are read many times in a single execution.
# cosmetic improvements to be done
# 1. improve the log function; add timestamp, file name, etc.
# 2. logging doesn't work from files that print things out.
# 3. kubectl prints the output to stderr (the output should be captured and then
# logged)
# global config
KUBECTL=${TEST_KUBECTL:-} # substitute for tests
KUBECTL=${KUBECTL:-${KUBECTL_BIN:-}}
KUBECTL=${KUBECTL:-/usr/local/bin/kubectl}
NUM_TRIES_FOR_CREATE=${TEST_NUM_TRIES:-100}
DELAY_AFTER_CREATE_ERROR_SEC=${TEST_DELAY_AFTER_ERROR_SEC:=10}
NUM_TRIES_FOR_STOP=${TEST_NUM_TRIES:-100}
DELAY_AFTER_STOP_ERROR_SEC=${TEST_DELAY_AFTER_ERROR_SEC:=10}
if [[ ! -x ${KUBECTL} ]]; then
echo "ERROR: kubectl command (${KUBECTL}) not found or is not executable" 1>&2
exit 1
fi
# remember that you can't log from functions that print some output (because
# logs are also printed on stdout)
# $1 level
# $2 message
function log() {
# manage log levels manually here
# add the timestamp if you find it useful
case $1 in
DB3 )
# echo "$1: $2"
;;
DB2 )
# echo "$1: $2"
;;
DBG )
# echo "$1: $2"
;;
INFO )
echo "$1: $2"
;;
WRN )
echo "$1: $2"
;;
ERR )
echo "$1: $2"
;;
* )
echo "INVALID_LOG_LEVEL $1: $2"
;;
esac
}
#$1 yaml file path
function get-object-kind-from-file() {
# prints to stdout, so log cannot be used
#WARNING: only yaml is supported
cat $1 | python -c '''
try:
import pipes,sys,yaml
y = yaml.load(sys.stdin)
labels = y["metadata"]["labels"]
if ("kubernetes.io/cluster-service", "true") not in labels.iteritems():
# all add-ons must have the label "kubernetes.io/cluster-service".
# Otherwise we are ignoring them (the update will not work anyway)
print "ERROR"
else:
print y["kind"]
except Exception, ex:
print "ERROR"
'''
}
# $1 yaml file path
function get-object-name-from-file() {
# prints to stdout, so log cannot be used
#WARNING: only yaml is supported
cat $1 | python -c '''
try:
import pipes,sys,yaml
y = yaml.load(sys.stdin)
labels = y["metadata"]["labels"]
if ("kubernetes.io/cluster-service", "true") not in labels.iteritems():
# all add-ons must have the label "kubernetes.io/cluster-service".
# Otherwise we are ignoring them (the update will not work anyway)
print "ERROR"
else:
print y["metadata"]["name"]
except Exception, ex:
print "ERROR"
'''
}
# $1 addon directory path
# $2 addon type (e.g. ReplicationController)
# echoes the string with paths to files containing addon for the given type
# works only for yaml files (!) (ignores json files)
function get-addons-from-disk() {
# prints to stdout, so log cannot be used
local -r addon_dir=$1
local -r obj_type=$2
local kind
local file_path
for file_path in $(find ${addon_dir} -name \*.yaml); do
kind=$(get-object-kind-from-file ${file_path})
# WARNING: assumption that the topmost indentation is zero (I'm not sure yaml allows for topmost indentation)
if [[ "${kind}" == "${obj_type}" ]]; then
echo ${file_path}
fi
done
}
# waits for all subprocesses
# returns 0 if all of them were successful and 1 otherwise
function wait-for-jobs() {
local rv=0
local pid
for pid in $(jobs -p); do
wait ${pid} || (rv=1; log ERR "error in pid ${pid}")
log DB2 "pid ${pid} completed, current error code: ${rv}"
done
return ${rv}
}
function run-until-success() {
local -r command=$1
local tries=$2
local -r delay=$3
local -r command_name=$1
while [ ${tries} -gt 0 ]; do
log DBG "executing: '$command'"
# let's give the command as an argument to bash -c, so that we can use
# && and || inside the command itself
/bin/bash -c "${command}" && \
log DB3 "== Successfully executed ${command_name} at $(date -Is) ==" && \
return 0
let tries=tries-1
log INFO "== Failed to execute ${command_name} at $(date -Is). ${tries} tries remaining. =="
sleep ${delay}
done
return 1
}
# $1 object type
function get-addons-from-server() {
local -r obj_type=$1
"${KUBECTL}" get "${obj_type}" -o template -t "{{range.items}}{{.metadata.name}} {{end}}" --api-version=v1beta3 -l kubernetes.io/cluster-service=true
}
# returns the characters after the last separator (including)
# If the separator is empty or if it doesn't appear in the string,
# an empty string is printed
# $1 input string
# $2 separator (must be single character, or empty)
function get-suffix() {
# prints to stdout, so log cannot be used
local -r input_string=$1
local -r separator=$2
local suffix
if [[ "${separator}" == "" ]]; then
echo ""
return
fi
if [[ "${input_string}" == *"${separator}"* ]]; then
suffix=$(echo "${input_string}" | rev | cut -d "${separator}" -f1 | rev)
echo "${separator}${suffix}"
else
echo ""
fi
}
# returns the characters up to the last '-' (without it)
# $1 input string
# $2 separator
function get-basename() {
# prints to stdout, so log cannot be used
local -r input_string=$1
local -r separator=$2
local suffix
suffix="$(get-suffix ${input_string} ${separator})"
# this will strip the suffix (if matches)
echo ${input_string%$suffix}
}
function stop-object() {
local -r obj_type=$1
local -r obj_name=$2
log INFO "Stopping ${obj_type} ${obj_name}"
run-until-success "${KUBECTL} stop ${obj_type} ${obj_name}" ${NUM_TRIES_FOR_STOP} ${DELAY_AFTER_STOP_ERROR_SEC}
}
function create-object() {
local -r obj_type=$1
local -r file_path=$2
log INFO "Creating new ${obj_type} from file ${file_path}"
run-until-success "${KUBECTL} create -f ${file_path}" ${NUM_TRIES_FOR_CREATE} ${DELAY_AFTER_CREATE_ERROR_SEC}
}
function update-object() {
local -r obj_type=$1
local -r obj_name=$2
local -r file_path=$3
log INFO "updating the ${obj_type} ${obj_name} with the new definition ${file_path}"
stop-object ${obj_type} ${obj_name}
create-object ${obj_type} ${file_path}
}
# deletes the objects from the server
# $1 object type
# $2 a list of object names
function stop-objects() {
local -r obj_type=$1
local -r obj_names=$2
local obj_name
for obj_name in ${obj_names}; do
stop-object ${obj_type} ${obj_names} &
done
}
# creates objects from the given files
# $1 object type
# $2 a list of paths to definition files
function create-objects() {
local -r obj_type=$1
local -r file_paths=$2
local file_path
for file_path in ${file_paths}; do
create-object ${obj_type} ${file_path} &
done
}
# updates objects
# $1 object type
# $2 a list of update specifications
# each update specification is a ';' separated pair: <object name>;<file path>
function update-objects() {
local -r obj_type=$1 # ignored
local -r update_spec=$2
local objdesc
for objdesc in ${update_spec}; do
IFS=';' read -a array <<< ${objdesc}
update-object ${obj_type} ${array[0]} ${array[1]} &
done
}
# Global variables set by function match-objects.
for_delete="" # a list of object names to be deleted
for_update="" # a list of pairs <obj_name>;<filePath> for objects that should be updated
for_ignore="" # a list of object nanes that can be ignored
new_files="" # a list of file paths that weren't matched by any existing objects (these objects must be created now)
# $1 path to files with objects
# $2 object type in the API (ReplicationController or Service)
# $3 name separator (single character or empty)
function match-objects() {
local -r addon_dir=$1
local -r obj_type=$2
local -r separator=$3
# output variables (globals)
for_delete=""
for_update=""
for_ignore=""
new_files=""
addon_names_on_server=$(get-addons-from-server "${obj_type}")
addon_paths_in_files=$(get-addons-from-disk "${addon_dir}" "${obj_type}")
log DB2 "addon_names_on_server=${addon_names_on_server}"
log DB2 "addon_paths_in_files=${addon_paths_in_files}"
local matched_files=""
local basename_on_server=""
local name_on_server=""
local suffix_on_server=""
local name_from_file=""
local suffix_from_file=""
local found=0
local addon_path=""
for name_on_server in ${addon_names_on_server}; do
basename_on_server=$(get-basename ${name_on_server} ${separator})
suffix_on_server="$(get-suffix ${name_on_server} ${separator})"
log DB3 "Found existing addon ${name_on_server}, basename=${basename_on_server}"
# check if the addon is present in the directory and decide
# what to do with it
# this is not optimal because we're reading the files over and over
# again. But for small number of addons it doesn't matter so much.
found=0
for addon_path in ${addon_paths_in_files}; do
name_from_file=$(get-object-name-from-file ${addon_path})
if [[ "${name_from_file}" == "ERROR" ]]; then
log INFO "Cannot read object name from ${addon_path}. Ignoring"
continue
else
log DB2 "Found object name '${name_from_file}' in file ${addon_path}"
fi
suffix_from_file="$(get-suffix ${name_from_file} ${separator})"
log DB3 "matching: ${basename_on_server}${suffix_from_file} == ${name_from_file}"
if [[ "${basename_on_server}${suffix_from_file}" == "${name_from_file}" ]]; then
log DB3 "matched existing ${obj_type} ${name_on_server} to file ${addon_path}; suffix_on_server=${suffix_on_server}, suffix_from_file=${suffix_from_file}"
found=1
matched_files="${matched_files} ${addon_path}"
if [[ "${suffix_on_server}" == "${suffix_from_file}" ]]; then
for_ignore="${for_ignore} ${name_from_file}"
else
for_update="${for_update} ${name_on_server};${addon_path}"
fi
break
fi
done
if [[ ${found} -eq 0 ]]; then
log DB2 "No definition file found for replication controller ${name_on_server}. Scheduling for deletion"
for_delete="${for_delete} ${name_on_server}"
fi
done
log DB3 "matched_files=${matched_files}"
for addon_path in ${addon_paths_in_files}; do
echo ${matched_files} | grep "${addon_path}" >/dev/null
if [[ $? -ne 0 ]]; then
new_files="${new_files} ${addon_path}"
fi
done
}
function reconcile-objects() {
local -r addon_path=$1
local -r obj_type=$2
local -r separator=$3 # name separator
match-objects ${addon_path} ${obj_type} ${separator}
log DBG "${obj_type}: for_delete=${for_delete}"
log DBG "${obj_type}: for_update=${for_update}"
log DBG "${obj_type}: for_ignore=${for_ignore}"
log DBG "${obj_type}: new_files=${new_files}"
stop-objects "${obj_type}" "${for_delete}"
# wait for jobs below is a protection against changing the basename
# of a replication controllerm without changing the selector.
# If we don't wait, the new rc may be created before the old one is deleted
# In such case the old one will wait for all its pods to be gone, but the pods
# are created by the new replication controller.
# passing --cascade=false could solve the problem, but we want
# all orphan pods to be deleted.
wait-for-jobs
stopResult=$?
create-objects "${obj_type}" "${new_files}"
update-objects "${obj_type}" "${for_update}"
local obj
for obj in ${for_ignore}; do
log DB2 "The ${obj_type} ${obj} is already up to date"
done
wait-for-jobs
createUpdateResult=$?
if [[ ${stopResult} -eq 0 ]] && [[ ${createUpdateResult} -eq 0 ]]; then
return 0
else
return 1
fi
}
function update-addons() {
local -r addon_path=$1
# be careful, reconcile-objects uses global variables
reconcile-objects ${addon_path} ReplicationController "-" &
# We don't expect service names to be versioned, so
# we match entire name, ignoring version suffix.
# That's why we pass an empty string as the version separator.
# If the service description differs on disk, the service should be recreated.
# This is not implemented in this version.
reconcile-objects ${addon_path} Service "" &
wait-for-jobs
if [[ $? -eq 0 ]]; then
log INFO "== Kubernetes addon update completed successfully at $(date -Is) =="
else
log WRN "== Kubernetes addon update completed with errors at $(date -Is) =="
fi
}
if [[ $# -ne 1 ]]; then
echo "Illegal number of parameters" 1>&2
exit 1
fi
addon_path=$1
update-addons ${addon_path}

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#!/bin/bash
# Copyright 2014 The Kubernetes Authors All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# The business logic for whether a given object should be created
# was already enforced by salt, and /etc/kubernetes/addons is the
# managed result is of that. Start everything below that directory.
KUBECTL=${KUBECTL_BIN:-/usr/local/bin/kubectl}
ADDON_CHECK_INTERVAL_SEC=${TEST_ADDON_CHECK_INTERVAL_SEC:-600}
token_dir=${TOKEN_DIR:-/srv/kubernetes}
function create-kubeconfig-secret() {
local -r token=$1
local -r username=$2
local -r server=$3
local -r safe_username=$(tr -s ':_' '--' <<< "${username}")
# Make a kubeconfig file with the token.
if [[ ! -z "${CA_CERT:-}" ]]; then
# If the CA cert is available, put it into the secret rather than using
# insecure-skip-tls-verify.
read -r -d '' kubeconfig <<EOF
apiVersion: v1
kind: Config
users:
- name: ${username}
user:
token: ${token}
clusters:
- name: local
cluster:
server: ${server}
certificate-authority-data: ${CA_CERT}
contexts:
- context:
cluster: local
user: ${username}
name: service-account-context
current-context: service-account-context
EOF
else
read -r -d '' kubeconfig <<EOF
apiVersion: v1
kind: Config
users:
- name: ${username}
user:
token: ${token}
clusters:
- name: local
cluster:
server: ${server}
insecure-skip-tls-verify: true
contexts:
- context:
cluster: local
user: ${username}
name: service-account-context
current-context: service-account-context
EOF
fi
local -r kubeconfig_base64=$(echo "${kubeconfig}" | base64 -w0)
read -r -d '' secretyaml <<EOF
apiVersion: v1beta3
data:
kubeconfig: ${kubeconfig_base64}
kind: Secret
metadata:
name: token-${safe_username}
type: Opaque
EOF
create-resource-from-string "${secretyaml}" 100 10 "Secret-for-token-for-user-${username}" &
# TODO: label the secrets with special label so kubectl does not show these?
}
# $1 filename of addon to start.
# $2 count of tries to start the addon.
# $3 delay in seconds between two consecutive tries
function start_addon() {
local -r addon_filename=$1;
local -r tries=$2;
local -r delay=$3;
create-resource-from-string "$(cat ${addon_filename})" "${tries}" "${delay}" "${addon_filename}"
}
# $1 string with json or yaml.
# $2 count of tries to start the addon.
# $3 delay in seconds between two consecutive tries
# $3 name of this object to use when logging about it.
function create-resource-from-string() {
local -r config_string=$1;
local tries=$2;
local -r delay=$3;
local -r config_name=$4;
while [ ${tries} -gt 0 ]; do
echo "${config_string}" | ${KUBECTL} create -f - && \
echo "== Successfully started ${config_name} at $(date -Is)" && \
return 0;
let tries=tries-1;
echo "== Failed to start ${config_name} at $(date -Is). ${tries} tries remaining. =="
sleep ${delay};
done
return 1;
}
# The business logic for whether a given object should be created
# was already enforced by salt, and /etc/kubernetes/addons is the
# managed result is of that. Start everything below that directory.
echo "== Kubernetes addon manager started at $(date -Is) with ADDON_CHECK_INTERVAL_SEC=${ADDON_CHECK_INTERVAL_SEC}=="
# Load the kube-env, which has all the environment variables we care
# about, in a flat yaml format.
kube_env_yaml="/var/cache/kubernetes-install/kube_env.yaml"
if [ ! -e "${kubelet_kubeconfig_file}" ]; then
eval $(python -c '''
import pipes,sys,yaml
for k,v in yaml.load(sys.stdin).iteritems():
print "readonly {var}={value}".format(var = k, value = pipes.quote(str(v)))
''' < "${kube_env_yaml}")
fi
# Generate secrets for "internal service accounts".
# TODO(etune): move to a completely yaml/object based
# workflow so that service accounts can be created
# at the same time as the services that use them.
# NOTE: needs to run as root to read this file.
# Read each line in the csv file of tokens.
# Expect errors when the script is started again.
while read line; do
# Split each line into the token and username.
IFS=',' read -a parts <<< "${line}"
token=${parts[0]}
username=${parts[1]}
# DNS is special, since it's necessary for cluster bootstrapping.
if [[ "${username}" == "system:dns" ]] && [[ ! -z "${KUBERNETES_MASTER_NAME:-}" ]]; then
create-kubeconfig-secret "${token}" "${username}" "https://${KUBERNETES_MASTER_NAME}"
else
# Set the server to https://kubernetes. Pods/components that
# do not have DNS available will have to override the server.
create-kubeconfig-secret "${token}" "${username}" "https://kubernetes"
fi
done < ${token_dir}/known_tokens.csv
# Create admission_control objects if defined before any other addon services. If the limits
# are defined in a namespace other than default, we should still create the limits for the
# default namespace.
for obj in $(find /etc/kubernetes/admission-controls \( -name \*.yaml -o -name \*.json \)); do
start_addon ${obj} 100 10 &
echo "++ obj ${obj} is created ++"
done
# Check if the configuration has changed recently - in case the user
# created/updated/deleted the files on the master.
while true; do
#kube-addon-update.sh must be deployed in the same directory as this file
`dirname $0`/kube-addon-update.sh /etc/kubernetes/addons
sleep $ADDON_CHECK_INTERVAL_SEC
done

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#!/bin/bash
# Copyright 2015 The Kubernetes Authors All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
token_dir=${TOKEN_DIR:-/var/srv/kubernetes}
token_file="${token_dir}/known_tokens.csv"
create_accounts=($@)
touch "${token_file}"
for account in "${create_accounts[@]}"; do
if grep "${account}" "${token_file}" ; then
continue
fi
token=$(dd if=/dev/urandom bs=128 count=1 2>/dev/null | base64 | tr -d "=+/" | dd bs=32 count=1 2>/dev/null)
echo "${token},${account},${account}" >> "${token_file}"
echo "Added ${account}"
done

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---
- name: reload and restart kube-addons
command: systemctl daemon-reload
notify:
- restart kube-addons
- name: restart kube-addons
service: name=kube-addons state=restarted

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---
dependencies:
- { role: master }

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- name: Install PyYAML
action: "{{ ansible_pkg_mgr }}"
args:
name: PyYAML
state: latest

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---
- name: Assures /etc/kubernetes/addons/ dir exists
file: path=/etc/kubernetes/addons/ state=directory
- include: generic-install.yml
when: not is_atomic
- name: Assures local addon dir exists
local_action: file
path={{ local_temp_addon_dir }}
state=directory
sudo: no
#- name: Get kube-addons script from Kubernetes
# get_url:
# url=https://raw.githubusercontent.com/GoogleCloudPlatform/kubernetes/master/cluster/saltbase/salt/kube-addons/kube-addons.sh
# dest={{ kube_script_dir }}/kube-addons.sh mode=0755
# force=yes
#- name: Get kube-addon-update script from Kubernetes
# get_url:
# url=https://raw.githubusercontent.com/GoogleCloudPlatform/kubernetes/master/cluster/saltbase/salt/kube-addons/kube-addon-update.sh
# dest={{ kube_script_dir }}/kube-addon-update.sh mode=0755
# force=yes
- name: HACK | copy local kube-addons.sh
copy: src=kube-addons.sh dest={{ kube_script_dir }}/kube-addons.sh mode=0755
- name: HACK | copy local kube-addon-update.sh
copy: src=kube-addon-update.sh dest={{ kube_script_dir }}/kube-addon-update.sh mode=0755
- name: Copy script to create known_tokens.csv
copy: src=kube-gen-token.sh dest={{ kube_script_dir }}/kube-gen-token.sh mode=0755
- name: Run kube-gen-token script to create {{ kube_config_dir }}/known_tokens.csv
command: "{{ kube_script_dir }}/kube-gen-token.sh {{ item }}"
environment:
TOKEN_DIR: "{{ kube_config_dir }}"
with_items:
-
register: gentoken
changed_when: "'Added' in gentoken.stdout"
notify:
- restart apiserver
- restart kube-addons
- name: Install kube-addons service
template: src=kube-addons.service.j2 dest=/etc/systemd/system/kube-addons.service
notify:
- reload and restart kube-addons
- name: Enable and start kube addons
service: name=kube-addons.service enabled=yes state=started

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[Unit]
Description=Kubernetes Addon Object Manager
Documentation=https://github.com/GoogleCloudPlatform/kubernetes
[Service]
Environment="TOKEN_DIR={{ kube_config_dir }}"
Environment="KUBECTL_BIN=/usr/bin/kubectl"
Environment="KUBERNETES_MASTER_NAME={{ groups['masters'][0] }}"
ExecStart={{ kube_script_dir }}/kube-addons.sh
[Install]
WantedBy=multi-user.target

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@ -10,6 +10,10 @@
notify:
- restart apiserver
- name: Ensure that a token auth file exists (addons may populate it)
file: path={{kube_config_dir }}/known_tokens.csv state=touch
changed_when: false
- name: write the config file for the controller-manager
template: src=controller-manager.j2 dest={{ kube_config_dir }}/controller-manager
notify:

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@ -23,4 +23,4 @@ KUBE_ETCD_SERVERS="--etcd_servers={% for node in groups['etcd'] %}http://{{ node
KUBE_ADMISSION_CONTROL="--admission_control=NamespaceLifecycle,NamespaceExists,LimitRanger,SecurityContextDeny,ServiceAccount,ResourceQuota"
# Add your own!
KUBE_API_ARGS="--tls_cert_file={{ kube_cert_dir }}/server.cert --tls_private_key_file={{ kube_cert_dir }}/server.key --client_ca_file={{ kube_cert_dir }}/ca.crt "
KUBE_API_ARGS="--tls_cert_file={{ kube_cert_dir }}/server.cert --tls_private_key_file={{ kube_cert_dir }}/server.key --client_ca_file={{ kube_cert_dir }}/ca.crt --token_auth_file={{ kube_config_dir }}/known_tokens.csv"