k8s-cluster.yaml

gistfile1.txt

# Kubernetes configuration dirs and system namespace.
# Those are where all the additional config stuff goes
# the kubernetes normally puts in /srv/kubernets.
# This puts them in a sane location and namespace.
# Editting 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"

kube_api_anonymous_auth: true

## Change this to use another Kubernetes version, e.g. a current beta release
kube_version: v1.9.5

# 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

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

# Cluster Loglevel configuration
kube_log_level: 2

# Users to create for basic auth in Kubernetes API via HTTP
# Optionally add groups for user
kube_api_pwd: "{{ lookup('password', 'credentials/kube_user length=15 chars=ascii_letters,digits') }}"
kube_users:
  kube:
    pass: "{{kube_api_pwd}}"
    role: admin
    groups:
      - system:masters

## It is possible to activate / deactivate selected authentication methods (basic auth, static token auth)
#kube_oidc_auth: false
#kube_basic_auth: false
#kube_token_auth: false


## Variables for OpenID Connect Configuration https://kubernetes.io/docs/admin/authentication/
## To use OpenID you have to deploy additional an OpenID Provider (e.g Dex, Keycloak, ...)

# kube_oidc_url: https:// ...
# kube_oidc_client_id: kubernetes
## Optional settings for OIDC
# kube_oidc_ca_file: {{ kube_cert_dir }}/ca.pem
# kube_oidc_username_claim: sub
# kube_oidc_groups_claim: groups


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

# 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, do not manually change these values
# To reset values :
# weave_seed: uninitialized
# weave_peers: uninitialized
weave_seed: uninitialized
weave_peers: uninitialized

# Set the MTU of Weave (default 1376, Jumbo Frames: 8916)
weave_mtu: 1376

# Enable kubernetes network policies
enable_network_policy: false

# 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 4096 nodes with 254 pods per node.
kube_network_node_prefix: 24

# The port the API Server will be listening on.
kube_apiserver_ip: "{{ kube_service_addresses|ipaddr('net')|ipaddr(1)|ipaddr('address') }}"
kube_apiserver_port: 6443 # (https)
kube_apiserver_insecure_port: 8080 # (http)
# Set to 0 to disable insecure port - Requires RBAC in authorization_modes and kube_api_anonymous_auth: true
#kube_apiserver_insecure_port: 0 # (disabled)

# Kube-proxy proxyMode configuration.
# Can be ipvs, iptables
kube_proxy_mode: iptables

## Encrypting Secret Data at Rest (experimental)
kube_encrypt_secret_data: 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, coredns, coredns_dual, manual or none
dns_mode: kubedns
# Set manual server if using a custom cluster DNS server
#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: true
# 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 }}"

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

## A string of extra options to pass to the docker daemon.
## This string should be exactly as you wish it to appear.
## An obvious use case is allowing insecure-registry access
## to self hosted registries like so:

docker_options: "--insecure-registry={{ kube_service_addresses }} --graph={{ docker_daemon_graph }}  {{ docker_log_opts }}"
docker_bin_dir: "/usr/bin"

# Settings for containerized control plane (etcd/kubelet/secrets)
etcd_deployment_type: docker
kubelet_deployment_type: host
vault_deployment_type: docker
helm_deployment_type: host

# 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

# Monitoring apps for k8s
efk_enabled: true

# Helm deployment. Needs for Prometheus Operator, k8s metrics.
helm_enabled: false

# Prometheus Operator. Needs for k8s metrics. Installed Helm is required.
prometheus_operator_enabled: false

# K8s cluster metrics. Installed Helm and Prometheus Operator are required.
k8s_metrics_enabled: false

# Istio deployment
istio_enabled: false

# Registry deployment
registry_enabled: false
# registry_namespace: "{{ system_namespace }}"
# registry_storage_class: ""
# registry_disk_size: "10Gi"

# Local volume provisioner deployment
local_volume_provisioner_enabled: false
# local_volume_provisioner_namespace: "{{ system_namespace }}"
# local_volume_provisioner_base_dir: /mnt/disks
# local_volume_provisioner_mount_dir: /mnt/disks
# local_volume_provisioner_storage_class: local-storage

# CephFS provisioner deployment
cephfs_provisioner_enabled: false
# cephfs_provisioner_namespace: "{{ system_namespace }}"
# cephfs_provisioner_cluster: ceph
# cephfs_provisioner_monitors:
#   - 172.24.0.1:6789
#   - 172.24.0.2:6789
#   - 172.24.0.3:6789
# cephfs_provisioner_admin_id: admin
# cephfs_provisioner_secret: secret
# cephfs_provisioner_storage_class: cephfs

# Nginx ingress controller deployment
ingress_nginx_enabled: false
# ingress_nginx_host_network: false
# ingress_nginx_namespace: "ingress-nginx"
# ingress_nginx_insecure_port: 80
# ingress_nginx_secure_port: 443
# ingress_nginx_configmap:
#   map-hash-bucket-size: "128"
#   ssl-protocols: "SSLv2"
# ingress_nginx_configmap_tcp_services:
#   9000: "default/example-go:8080"
# ingress_nginx_configmap_udp_services:
#   53: "kube-system/kube-dns:53"

# Cert manager deployment
cert_manager_enabled: false
# cert_manager_namespace: "cert-manager"

# Add Persistent Volumes Storage Class for corresponding cloud provider ( OpenStack is only supported now )
persistent_volumes_enabled: false

# 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

# dnsmasq
# dnsmasq_upstream_dns_servers:
#  - /resolvethiszone.with/10.0.4.250
#  - 8.8.8.8

#  Enable creation of QoS cgroup hierarchy, if true top level QoS and pod cgroups are created. (default true)
# kubelet_cgroups_per_qos: true

# A comma separated list of levels of node allocatable enforcement to be enforced by kubelet.
# Acceptable options are 'pods', 'system-reserved', 'kube-reserved' and ''. Default is "".
# kubelet_enforce_node_allocatable: pods

## Supplementary addresses that can be added in kubernetes ssl keys.
## That can be useful for example to setup a keepalived virtual IP
# supplementary_addresses_in_ssl_keys: [10.0.0.1, 10.0.0.2, 10.0.0.3]

## Running on top of openstack vms with cinder enabled may lead to unschedulable pods due to NoVolumeZoneConflict restriction in kube-scheduler.
## See https://github.com/kubernetes-incubator/kubespray/issues/2141
## Set this variable to true to get rid of this issue
volume_cross_zone_attachment: false