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

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

epel_enabled: false
dns_late: false

common_required_pkgs:
  - "{{ (ansible_distribution == 'openSUSE Tumbleweed') | ternary('openssl-1_1', 'openssl') }}"
  - curl
  - rsync
  - socat
  - unzip
  - e2fsprogs
  - xfsprogs
  - ebtables
  - bash-completion

# Set to true if your network does not support IPv6
# This maybe necessary for pulling Docker images from
# GCE docker repository
disable_ipv6_dns: false

kube_cert_group: kube-cert
kube_config_dir: /etc/kubernetes
kube_cert_dir: "{{ kube_config_dir }}/ssl"
kube_cert_compat_dir: /etc/kubernetes/pki
kubelet_flexvolumes_plugins_dir: /usr/libexec/kubernetes/kubelet-plugins/volume/exec

# Flatcar Container Linux by Kinvolk cloud init config file to define /etc/resolv.conf content
# for hostnet pods and infra needs
resolveconf_cloud_init_conf: /etc/resolveconf_cloud_init.conf

# All inventory hostnames will be written into each /etc/hosts file.
populate_inventory_to_hosts_file: true

sysctl_file_path: "/etc/sysctl.d/99-sysctl.conf"

etc_hosts_localhost_entries:
  127.0.0.1:
    expected:
      - localhost
      - localhost.localdomain
  ::1:
    expected:
      - localhost6
      - localhost6.localdomain
    unexpected:
      - localhost
      - localhost.localdomain

# Minimal memory requirement in MB for safety checks
minimal_node_memory_mb: 1024
minimal_master_memory_mb: 1500

yum_repo_dir: /etc/yum.repos.d

# number of times package install task should be retried
pkg_install_retries: 4

# Check if access_ip responds to ping. Set false if your firewall blocks ICMP.
ping_access_ip: true