kubespray/roles/kubespray-defaults/defaults/main.yaml

---
# Use proxycommand if bastion host is in group all
# This change obseletes editing ansible.cfg file depending on bastion existance
ansible_ssh_common_args: "{% if 'bastion' in groups['all'] %} -o ProxyCommand='ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -W %h:%p {{ hostvars['bastion']['ansible_user'] }}@{{ hostvars['bastion']['ansible_host'] }} {% if ansible_ssh_private_key_file is defined %}-i {{ ansible_ssh_private_key_file }}{% endif %} ' {% endif %}"

kube_api_anonymous_auth: true

# Default value, but will be set to true automatically if detected
is_atomic: false

# optional disable the swap
disable_swap: true

## Change this to use another Kubernetes version, e.g. a current beta release
kube_version: v1.13.3

## Kube Proxy mode One of ['iptables','ipvs']
kube_proxy_mode: ipvs

# A string slice of values which specify the addresses to use for NodePorts.
# Values may be valid IP blocks (e.g. 1.2.3.0/24, 1.2.3.4/32).
# The default empty string slice ([]) means to use all local addresses.
# kube_proxy_nodeport_addresses_cidr is retained for legacy config
kube_proxy_nodeport_addresses: >-
  {%- if kube_proxy_nodeport_addresses_cidr is defined -%}
  [{{ kube_proxy_nodeport_addresses_cidr }}]
  {%- else -%}
  []
  {%- endif -%}  

# Set to true to allow pre-checks to fail and continue deployment
ignore_assert_errors: false

# nginx-proxy configure
nginx_config_dir: "/etc/nginx"

# Directory where the binaries will be installed
bin_dir: /usr/local/bin
docker_bin_dir: /usr/bin
etcd_data_dir: /var/lib/etcd
# Where the binaries will be downloaded.
# Note: ensure that you've enough disk space (about 1G)
local_release_dir: "/tmp/releases"
# Random shifts for retrying failed ops like pushing/downloading
retry_stagger: 5

# Install epel repo on Centos/RHEL
epel_enabled: false

# DNS configuration.
# Kubernetes cluster name, also will be used as DNS domain
cluster_name: cluster.local
# Subdomains of DNS domain to be resolved via /etc/resolv.conf for hostnet pods
ndots: 2
# Can be dnsmasq_kubedns, kubedns, manual or none
dns_mode: coredns

# Enable nodelocal dns cache
enable_nodelocaldns: False
nodelocaldns_ip: 169.254.25.10

# Should be set to a cluster IP if using a custom cluster DNS
# manual_dns_server: 10.x.x.x

# Can be docker_dns, host_resolvconf or none
resolvconf_mode: docker_dns
# Deploy netchecker app to verify DNS resolve as an HTTP service
deploy_netchecker: false
# Ip address of the kubernetes skydns service
skydns_server: "{{ kube_service_addresses|ipaddr('net')|ipaddr(3)|ipaddr('address') }}"
skydns_server_secondary: "{{ kube_service_addresses|ipaddr('net')|ipaddr(4)|ipaddr('address') }}"
dnsmasq_dns_server: "{{ kube_service_addresses|ipaddr('net')|ipaddr(2)|ipaddr('address') }}"
dns_domain: "{{ cluster_name }}"
kube_dns_servers:
  kubedns: ["{{skydns_server}}"]
  coredns: ["{{skydns_server}}"]
  coredns_dual: "{{[skydns_server] + [ skydns_server_secondary ]}}"
  manual: ["{{manual_dns_server}}"]
  dnsmasq_kubedns: ["{{dnsmasq_dns_server}}"]

dns_servers: "{{kube_dns_servers[dns_mode]}}"

# Kubernetes configuration dirs and system namespace.
# Those are where all the additional config stuff goes
# the kubernetes normally puts in /srv/kubernetes.
# This puts them in a sane location and namespace.
# Editing those values will almost surely break something.
kube_config_dir: /etc/kubernetes
kube_script_dir: "{{ bin_dir }}/kubernetes-scripts"
kube_manifest_dir: "{{ kube_config_dir }}/manifests"

# This is where all the cert scripts and certs will be located
kube_cert_dir: "{{ kube_config_dir }}/ssl"

# This is where all of the bearer tokens will be stored
kube_token_dir: "{{ kube_config_dir }}/tokens"

# This is where to save basic auth file
kube_users_dir: "{{ kube_config_dir }}/users"


# This is the group that the cert creation scripts chgrp the
# cert files to. Not really changeable...
kube_cert_group: kube-cert

# Cluster Loglevel configuration
kube_log_level: 2

# Users to create for basic auth in Kubernetes API via HTTP
kube_api_pwd: "changeme"
kube_users:
  kube:
    pass: "{{kube_api_pwd}}"
    role: admin

# Choose network plugin (cilium, calico, weave or flannel)
# Can also be set to 'cloud', which lets the cloud provider setup appropriate routing
kube_network_plugin: calico
kube_network_plugin_multus: false

# Determines if calico-rr group exists
peer_with_calico_rr: "{{ 'calico-rr' in groups and groups['calico-rr']|length > 0 }}"

# Set to false to disable calico-upgrade
calico_upgrade_enabled: true

# Kubernetes internal network for services, unused block of space.
kube_service_addresses: 10.233.0.0/18

# internal network. When used, it will assign IP
# addresses from this range to individual pods.
# This network must be unused in your network infrastructure!
kube_pods_subnet: 10.233.64.0/18

# internal network node size allocation (optional). This is the size allocated
# to each node on your network.  With these defaults you should have
# room for 64 nodes with 254 pods per node.
# Example: Up to 256 nodes, 100 pods per node (/16 network):
#  - kube_service_addresses: 10.233.0.0/17
#  - kube_pods_subnet: 10.233.128.0/17
#  - kube_network_node_prefix: 25
# Example: Up to 4096 nodes, 100 pods per node (/12 network):
#  - kube_service_addresses: 10.192.0.0/13
#  - kube_pods_subnet: 10.200.0.0/13
#  - kube_network_node_prefix: 25
kube_network_node_prefix: 24

# The virtual cluster IP, real host IPs and ports the API Server will be
# listening on.
# NOTE: loadbalancer_apiserver_localhost somewhat alters the final API enpdoint
# access IP value (automatically evaluated below)
kube_apiserver_ip: "{{ kube_service_addresses|ipaddr('net')|ipaddr(1)|ipaddr('address') }}"
kube_apiserver_bind_address: 0.0.0.0
# https
kube_apiserver_port: 6443
# http
kube_apiserver_insecure_bind_address: 127.0.0.1
kube_apiserver_insecure_port: 0

# If non-empty, will use this string as identification instead of the actual hostname
kube_override_hostname: >-
  {%- if cloud_provider is defined and cloud_provider in [ 'aws' ] -%}
  {%- else -%}
  {{ inventory_hostname }}
  {%- endif -%}  

# dynamic kubelet configuration
dynamic_kubelet_configuration: false

# define kubelet config dir for dynamic kubelet
# kubelet_config_dir:
default_kubelet_config_dir: "{{ kube_config_dir }}/dynamic_kubelet_dir"
dynamic_kubelet_configuration_dir: "{{ kubelet_config_dir | default(default_kubelet_config_dir) }}"

# Aggregator
kube_api_aggregator_routing: false

# Profiling
kube_profiling: false

# Container for runtime
container_manager: docker

## Uncomment this if you want to force overlay/overlay2 as docker storage driver
## Please note that overlay2 is only supported on newer kernels
# docker_storage_options: -s overlay2

## Enable docker_container_storage_setup, it will configure devicemapper driver on Centos7 or RedHat7.
docker_container_storage_setup: false

## It must be define a disk path for docker_container_storage_setup_devs.
## Otherwise docker-storage-setup will be executed incorrectly.
# docker_container_storage_setup_devs: /dev/vdb

## Uncomment this if you have more than 3 nameservers, then we'll only use the first 3.
docker_dns_servers_strict: false

# Path used to store Docker data
docker_daemon_graph: "/var/lib/docker"

## Used to set docker daemon iptables options to true
docker_iptables_enabled: "false"

# Docker log options
# Rotate container stderr/stdout logs at 50m and keep last 5
docker_log_opts: "--log-opt max-size=50m --log-opt max-file=5"

## An obvious use case is allowing insecure-registry access to self hosted registries.
## Can be ipaddress and domain_name.
## example define 172.19.16.11 or mirror.registry.io
# docker_insecure_registries:
#   - mirror.registry.io
#   - 172.19.16.11

## Add other registry,example China registry mirror.
# docker_registry_mirrors:
#   - https://registry.docker-cn.com
#   - https://mirror.aliyuncs.com

## If non-empty will override default system MounFlags value.
## This option takes a mount propagation flag: shared, slave
## or private, which control whether mounts in the file system
## namespace set up for docker will receive or propagate mounts
## and unmounts. Leave empty for system default
# docker_mount_flags:

## A string of extra options to pass to the docker daemon.
## This string should be exactly as you wish it to appear.
docker_options: >-
  {%- if docker_insecure_registries is defined %}
  {{ docker_insecure_registries | map('regex_replace', '^(.*)$', '--insecure-registry=\1' ) | list | join(' ') }}
  {%- endif %}
  {% if docker_registry_mirrors is defined %}
  {{ docker_registry_mirrors | map('regex_replace', '^(.*)$', '--registry-mirror=\1' ) | list | join(' ') }}
  {%- endif %}
  {%- if docker_version != "latest" and docker_version is version('17.05', '<') %}
  --graph={{ docker_daemon_graph }} {{ docker_log_opts }}
  {%- else %}
  --data-root={{ docker_daemon_graph }} {{ docker_log_opts }}
  {%- endif %}
  {%- if ansible_architecture == "aarch64" and ansible_os_family == "RedHat" %}
  --add-runtime docker-runc=/usr/libexec/docker/docker-runc-current
  --default-runtime=docker-runc --exec-opt native.cgroupdriver=systemd
  --userland-proxy-path=/usr/libexec/docker/docker-proxy-current --signature-verification=false
  {%- endif -%}  

# Settings for containerized control plane (etcd/kubelet/secrets)
etcd_deployment_type: docker
cert_management: script

helm_deployment_type: host

# Make a copy of kubeconfig on the host that runs Ansible in {{ inventory_dir }}/artifacts
kubeconfig_localhost: false
# Download kubectl onto the host that runs Ansible in {{ bin_dir }}
kubectl_localhost: false

# Define credentials_dir here so it can be overridden
credentials_dir: "{{ inventory_dir }}/credentials"

# K8s image pull policy (imagePullPolicy)
k8s_image_pull_policy: IfNotPresent

# Kubernetes dashboard
# RBAC required. see docs/getting-started.md for access details.
dashboard_enabled: true

# Addons which can be enabled
helm_enabled: false
registry_enabled: false
metrics_server_enabled: false
enable_network_policy: true
local_volume_provisioner_enabled: "{{ local_volumes_enabled | default('false') }}"
persistent_volumes_enabled: false
cephfs_provisioner_enabled: false
ingress_nginx_enabled: false
cert_manager_enabled: false

## When OpenStack is used, Cinder version can be explicitly specified if autodetection fails (Fixed in 1.9: https://github.com/kubernetes/kubernetes/issues/50461)
# openstack_blockstorage_version: "v1/v2/auto (default)"
openstack_blockstorage_ignore_volume_az: "{{ volume_cross_zone_attachment | default('false') }}"
## When OpenStack is used, if LBaaSv2 is available you can enable it with the following 2 variables.
openstack_lbaas_enabled: false
# openstack_lbaas_subnet_id: "Neutron subnet ID (not network ID) to create LBaaS VIP"
## To enable automatic floating ip provisioning, specify a subnet.
# openstack_lbaas_floating_network_id: "Neutron network ID (not subnet ID) to get floating IP from, disabled by default"
## Override default LBaaS behavior
# openstack_lbaas_use_octavia: False
# openstack_lbaas_method: "ROUND_ROBIN"
# openstack_lbaas_provider: "haproxy"
openstack_lbaas_create_monitor: "yes"
openstack_lbaas_monitor_delay: "1m"
openstack_lbaas_monitor_timeout: "30s"
openstack_lbaas_monitor_max_retries: "3"
openstack_cacert: "{{ lookup('env','OS_CACERT') }}"

## List of authorization modes that must be configured for
## the k8s cluster. Only 'AlwaysAllow', 'AlwaysDeny', 'Node' and
## 'RBAC' modes are tested. Order is important.
authorization_modes: ['Node', 'RBAC']
rbac_enabled: "{{ 'RBAC' in authorization_modes }}"

# When enabled, API bearer tokens (including service account tokens) can be used to authenticate to the kubelet’s HTTPS endpoint
kubelet_authentication_token_webhook: true

# When enabled, access to the kubelet API requires authorization by delegation to the API server
kubelet_authorization_mode_webhook: false

## v1.11 feature
feature_gate_v1_11:
  - "PersistentLocalVolumes={{ local_volume_provisioner_enabled | string }}"
  - "VolumeScheduling={{ local_volume_provisioner_enabled | string }}"
  - "MountPropagation={{ local_volume_provisioner_enabled | string }}"

## v1.12 feature
feature_gate_v1_12: []

## List of key=value pairs that describe feature gates for
## the k8s cluster.
kube_feature_gates: |-
  {%- if kube_version is version('v1.12.0', '<') -%}
  {{ feature_gate_v1_11 }}
  {%- else -%}
  {{ feature_gate_v1_12 }}
  {%- endif %}  

# Local volume provisioner storage classes
# Levarages Ansibles string to Python datatype casting. Otherwise the dict_key isn't substituted
# see https://github.com/ansible/ansible/issues/17324
local_volume_provisioner_storage_classes: |
  {
    "{{ local_volume_provisioner_storage_class | default('local-storage') }}": {
     "host_dir": "{{ local_volume_provisioner_base_dir | default ('/mnt/disks') }}",
      "mount_dir": "{{ local_volume_provisioner_mount_dir | default('/mnt/disks') }}"
    }
  }  

# weave's network password for encryption
# if null then no network encryption
# you can use --extra-vars to pass the password in command line
weave_password: EnterPasswordHere

# Weave uses consensus mode by default
# Enabling seed mode allow to dynamically add or remove hosts
# https://www.weave.works/docs/net/latest/ipam/
weave_mode_seed: false

# This two variable are automatically changed by the weave's role in group_vars/k8s-cluster.yml.
# Do not manually change these values
weave_seed: uninitialized
weave_peers: uninitialized

# Contiv L3 BGP Mode
contiv_peer_with_uplink_leaf: false
contiv_global_as: "65002"
contiv_global_neighbor_as: "500"

## Set no_proxy to all assigned cluster IPs and hostnames
no_proxy: >-
  {%- if http_proxy is defined or https_proxy is defined %}
  {%- if loadbalancer_apiserver is defined -%}
  {{ apiserver_loadbalancer_domain_name| default('') }},
  {{ loadbalancer_apiserver.address | default('') }},
  {%- endif -%}
  {%- for item in (groups['k8s-cluster'] + groups['etcd'] + groups['calico-rr']|default([]))|unique -%}
  {{ hostvars[item]['access_ip'] | default(hostvars[item]['ip'] | default(hostvars[item]['ansible_default_ipv4']['address'])) }},
  {%-   if (item != hostvars[item]['ansible_hostname']) -%}
  {{ hostvars[item]['ansible_hostname'] }},
  {{ hostvars[item]['ansible_hostname'] }}.{{ dns_domain }},
  {%-   endif -%}
  {{ item }},{{ item }}.{{ dns_domain }},
  {%- endfor -%}
  {%- if additional_no_proxy is defined -%}
  {{ additional_no_proxy }},
  {%- endif -%}
  127.0.0.1,localhost
  {%- endif %}  

proxy_env:
  http_proxy: "{{ http_proxy| default ('') }}"
  https_proxy: "{{ https_proxy| default ('') }}"
  no_proxy: "{{ no_proxy| default ('') }}"

ssl_ca_dirs: >-
  [
  {% if ansible_os_family in ['CoreOS', 'Container Linux by CoreOS'] -%}
  '/usr/share/ca-certificates',
  {% elif ansible_os_family == 'RedHat' -%}
  '/etc/pki/tls',
  '/etc/pki/ca-trust',
  {% elif ansible_os_family == 'Debian' -%}
  '/usr/share/ca-certificates',
  {% endif -%}
  ]  

# Vars for pointing to kubernetes api endpoints
is_kube_master: "{{ inventory_hostname in groups['kube-master'] }}"
kube_apiserver_count: "{{ groups['kube-master'] | length }}"
kube_apiserver_address: "{{ ip | default(ansible_default_ipv4['address']) }}"
kube_apiserver_access_address: "{{ access_ip | default(kube_apiserver_address) }}"
first_kube_master: "{{ hostvars[groups['kube-master'][0]]['access_ip'] | default(hostvars[groups['kube-master'][0]]['ip'] | default(hostvars[groups['kube-master'][0]]['ansible_default_ipv4']['address'])) }}"
loadbalancer_apiserver_localhost: "{{ loadbalancer_apiserver is not defined }}"
# applied if only external loadbalancer_apiserver is defined, otherwise ignored
apiserver_loadbalancer_domain_name: "lb-apiserver.kubernetes.local"
kube_apiserver_endpoint: |-
  {% if loadbalancer_apiserver is defined and loadbalancer_apiserver.port is defined -%}
       https://{{ apiserver_loadbalancer_domain_name|default('lb-apiserver.kubernetes.local') }}:{{ loadbalancer_apiserver.port|default(kube_apiserver_port) }}
  {%- elif not is_kube_master and loadbalancer_apiserver_localhost -%}
       https://localhost:{{ nginx_kube_apiserver_port|default(kube_apiserver_port) }}
  {%- elif is_kube_master -%}
       https://{{ kube_apiserver_bind_address | regex_replace('0\.0\.0\.0','127.0.0.1') }}:{{ kube_apiserver_port }}
  {%- else -%}
       https://{{ first_kube_master }}:{{ kube_apiserver_port }}
  {%- endif %}  
kube_apiserver_insecure_endpoint: >-
  http://{{ kube_apiserver_insecure_bind_address | regex_replace('0\.0\.0\.0','127.0.0.1') }}:{{ kube_apiserver_insecure_port }}  
kube_apiserver_client_cert: "{{ kube_cert_dir }}/ca.crt"
kube_apiserver_client_key: "{{ kube_cert_dir }}/ca.key"

# Set to true to deploy etcd-events cluster
etcd_events_cluster_enabled: false

# Vars for pointing to etcd endpoints
is_etcd_master: "{{ inventory_hostname in groups['etcd'] }}"
etcd_address: "{{ ip | default(ansible_default_ipv4['address']) }}"
etcd_access_address: "{{ access_ip | default(etcd_address) }}"
etcd_events_access_address: "{{ access_ip | default(etcd_address) }}"
etcd_peer_url: "https://{{ etcd_access_address }}:2380"
etcd_client_url: "https://{{ etcd_access_address }}:2379"
etcd_events_peer_url: "https://{{ etcd_events_access_address }}:2382"
etcd_events_client_url: "https://{{ etcd_events_access_address }}:2381"
etcd_access_addresses: |-
  {% for item in groups['etcd'] -%}
    https://{{ hostvars[item]['access_ip'] | default(hostvars[item]['ip'] | default(hostvars[item]['ansible_default_ipv4']['address'])) }}:2379{% if not loop.last %},{% endif %}
  {%- endfor %}  
etcd_events_access_addresses_list: |-
  [
  {% for item in groups['etcd'] -%}
    'https://{{ hostvars[item]['access_ip'] | default(hostvars[item]['ip'] | default(hostvars[item]['ansible_default_ipv4']['address'])) }}:2381'{% if not loop.last %},{% endif %}
  {%- endfor %}
  ]  
etcd_events_access_addresses: "{{etcd_events_access_addresses_list | join(',')}}"
etcd_events_access_addresses_semicolon: "{{etcd_events_access_addresses_list | join(';')}}"
# user should set etcd_member_name in inventory/mycluster/hosts.ini
etcd_member_name: |-
  {% for host in groups['etcd'] %}
  {%   if inventory_hostname == host %}{{ hostvars[host].etcd_member_name | default("etcd" + loop.index|string) }}{% endif %}
  {% endfor %}  
etcd_peer_addresses: |-
  {% for item in groups['etcd'] -%}
    {{ hostvars[item].etcd_member_name | default("etcd" + loop.index|string) }}=https://{{ hostvars[item].access_ip | default(hostvars[item].ip | default(hostvars[item].ansible_default_ipv4['address'])) }}:2380{% if not loop.last %},{% endif %}
  {%- endfor %}  
etcd_events_peer_addresses: |-
  {% for item in groups['etcd'] -%}
    {{ hostvars[item].etcd_member_name | default("etcd" + loop.index|string) }}-events=https://{{ hostvars[item].access_ip | default(hostvars[item].ip | default(hostvars[item].ansible_default_ipv4['address'])) }}:2382{% if not loop.last %},{% endif %}
  {%- endfor %}  

podsecuritypolicy_enabled: false
etcd_heartbeat_interval: "250"
etcd_election_timeout: "5000"
etcd_snapshot_count: "10000"

certificates_key_size: 2048
certificates_duration: 36500

pip_extra_args: |-
  {%- set pip_extra_args_list = [] -%}
  {%- if pyrepo_index is defined -%}
  {%- set DO = pip_extra_args_list.append('--index-url %s' | format(pyrepo_index)) -%}
  {%- if pyrepo_cert is defined -%}
  {%- set DO = pip_extra_args_list.append('--cert %s' | format(pyrepo_cert)) -%}
  {%- endif -%}
  {%- endif -%}
  {{ pip_extra_args_list|join(' ') }}  

etcd_config_dir: /etc/ssl/etcd
etcd_cert_dir: "{{ etcd_config_dir }}/ssl"