kubespray/environments/production/group_vars/k8s-cluster.yml

# Users to create for basic auth in Kubernetes API via HTTP
# kube_users:
#   kube:
#     pass: changeme
#     role: admin
#   root:
#     pass: changeme
#     role: admin

# Kubernetes cluster name, also will be used as DNS domain
# cluster_name: cluster.local

# set this variable to calico if needed. keep it empty if flannel is used
# kube_network_plugin: calico

# 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 total size (optional). This is the prefix of the
# entire network. Must be unused in your environment.
# kube_network_prefix: 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 4096 nodes with 254 pods per node.
# kube_network_node_prefix: 24

# With calico it is possible to distributed routes with border routers of the datacenter.
# peer_with_router: false
# Warning : enabling router peering will disable calico's default behavior ('node mesh').
# The subnets of each nodes will be distributed by the datacenter router

# The port the API Server will be listening on.
# kube_master_port: 443 # (https)
# kube_master_insecure_port: 8080 # (http)

# Internal DNS configuration.
# Kubernetes can create and mainatain its own DNS server to resolve service names
# into appropriate IP addresses. It's highly advisable to run such DNS server,
# as it greatly simplifies configuration of your applications - you can use
# service names instead of magic environment variables.
# You still must manually configure all your containers to use this DNS server,
# Kubernetes won't do this for you (yet).

# Upstream dns servers used by dnsmasq
# upstream_dns_servers:
#   - 8.8.8.8
#   - 4.4.8.8
#
# # Use dns server : https://github.com/ansibl8s/k8s-skydns/blob/master/skydns-README.md
# dns_setup: true
# dns_domain: "{{ cluster_name }}"
#
# # Ip address of the kubernetes dns service
# dns_server: 10.233.0.10