kubespray/roles/kubernetes/node/defaults/main.yml

---
# Valid options: docker (default), rkt, or host
kubelet_deployment_type: host

# change to 0.0.0.0 to enable insecure access from anywhere (not recommended)
kube_apiserver_insecure_bind_address: 127.0.0.1

# advertised host IP for kubelet. This affects network plugin config. Take caution
kubelet_address: "{{ ip | default(ansible_default_ipv4['address']) }}"

# bind address for kubelet. Set to 0.0.0.0 to listen on all interfaces
kubelet_bind_address: "{{ ip | default('0.0.0.0') }}"

# resolv.conf to base dns config
kube_resolv_conf: "/etc/resolv.conf"

# bind address for kube-proxy health check
kube_proxy_healthz_bind_address: "127.0.0.1"

# Can be ipvs, iptables
kube_proxy_mode: iptables

# If using the pure iptables proxy, SNAT everything. Note that it breaks any
# policy engine.
kube_proxy_masquerade_all: false

# These options reflect limitations of running kubelet in a container.
# Modify at your own risk
kubelet_enable_cri: true
kubelet_cgroups_per_qos: true
# Set to empty to avoid cgroup creation
kubelet_enforce_node_allocatable: "\"\""

# Set runtime cgroups
kubelet_runtime_cgroups: "/systemd/system.slice"
# Set kubelet cgroups
kubelet_kubelet_cgroups: "/systemd/system.slice"

# Set false to enable sharing a pid namespace between containers in a pod.
# Note that PID namespace sharing requires docker >= 1.13.1.
kubelet_disable_shared_pid: true

### fail with swap on (default true)
kubelet_fail_swap_on: true

# Reserve this space for kube resources
kube_memory_reserved: 256M
kube_cpu_reserved: 100m
# Reservation for master hosts
kube_master_memory_reserved: 512M
kube_master_cpu_reserved: 200m

kubelet_status_update_frequency: 10s

# Limits for kube components and nginx load balancer app
kube_proxy_memory_limit: 2000M
kube_proxy_cpu_limit: 500m
kube_proxy_memory_requests: 64M
kube_proxy_cpu_requests: 150m
nginx_memory_limit: 512M
nginx_cpu_limit: 300m
nginx_memory_requests: 32M
nginx_cpu_requests: 25m

# kube_api_runtime_config:
#   - extensions/v1beta1/daemonsets=true
#   - extensions/v1beta1/deployments=true

nginx_image_repo: nginx
nginx_image_tag: 1.13

etcd_config_dir: /etc/ssl/etcd

kubelet_flexvolumes_plugins_dir: /var/lib/kubelet/volume-plugins

# A port range to reserve for services with NodePort visibility.
# Inclusive at both ends of the range.
kube_apiserver_node_port_range: "30000-32767"

kubelet_load_modules: false

# Configure the amount of pods able to run on single node
# default is equal to application default
kubelet_max_pods: 110

## Support custom flags to be passed to kubelet
kubelet_custom_flags: []

# This setting is used for rkt based kubelet for deploying hyperkube
# from a docker based registry ( controls --insecure and docker:// )
## Empty vaule for quay.io containers
## docker for docker registry containers
kube_hyperkube_image_repo: ""

# 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 -%}

# cAdvisor port
kube_cadvisor_port: 0

# The read-only port for the Kubelet to serve on with no authentication/authorization.
kube_read_only_port: 0

# sysctl_file_path to add sysctl conf to
sysctl_file_path: "/etc/sysctl.d/99-sysctl.conf"

# For the openstack integration kubelet will need credentials to access
# openstack apis like nova and cinder. Per default this values will be
# read from the environment.
openstack_auth_url: "{{ lookup('env','OS_AUTH_URL')  }}"
openstack_username: "{{ lookup('env','OS_USERNAME')  }}"
openstack_password: "{{ lookup('env','OS_PASSWORD')  }}"
openstack_region: "{{ lookup('env','OS_REGION_NAME')  }}"
openstack_tenant_id: "{{ lookup('env','OS_TENANT_ID')| default(lookup('env','OS_PROJECT_ID')|default(lookup('env','OS_PROJECT_NAME'),true),true) }}"
openstack_tenant_name: "{{ lookup('env','OS_TENANT_NAME') }}"
openstack_domain_name: "{{ lookup('env','OS_USER_DOMAIN_NAME') }}"
openstack_domain_id: "{{ lookup('env','OS_USER_DOMAIN_ID') }}"
openstack_cacert: "{{ lookup('env','OS_CACERT') }}"

# For the vsphere integration, kubelet will need credentials to access
# vsphere apis
# Documentation regarding these values can be found
# https://github.com/kubernetes/kubernetes/blob/master/pkg/cloudprovider/providers/vsphere/vsphere.go#L105
vsphere_vcenter_ip: "{{ lookup('env', 'VSPHERE_VCENTER') }}"
vsphere_vcenter_port: "{{ lookup('env', 'VSPHERE_VCENTER_PORT') }}"
vsphere_user: "{{ lookup('env', 'VSPHERE_USER') }}"
vsphere_password: "{{ lookup('env', 'VSPHERE_PASSWORD') }}"
vsphere_datacenter: "{{ lookup('env', 'VSPHERE_DATACENTER') }}"
vsphere_datastore: "{{ lookup('env', 'VSPHERE_DATASTORE') }}"
vsphere_working_dir: "{{ lookup('env', 'VSPHERE_WORKING_DIR') }}"
vsphere_insecure: "{{ lookup('env', 'VSPHERE_INSECURE') }}"
vsphere_resource_pool: "{{ lookup('env', 'VSPHERE_RESOURCE_POOL') }}"

vsphere_scsi_controller_type: pvscsi
# vsphere_public_network is name of the network the VMs are joined to
vsphere_public_network: "{{ lookup('env', 'VSPHERE_PUBLIC_NETWORK')|default('') }}"

## When azure is used, you need to also set the following variables.
## see docs/azure.md for details on how to get these values
# azure_tenant_id:
# azure_subscription_id:
# azure_aad_client_id:
# azure_aad_client_secret:
# azure_resource_group:
# azure_location:
# azure_subnet_name:
# azure_security_group_name:
# azure_vnet_name:
# azure_route_table_name: