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@pbasov pbasov/k8s-cluster.yml
Last active Oct 15, 2018

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# 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"
kube_api_anonymous_auth: true
## Change this to use another Kubernetes version, e.g. a current beta release
kube_version: v1.11.3
# 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 changeable...
kube_cert_group: kube-cert
# Cluster Loglevel configuration
kube_log_level: 2
# Directory where credentials will be stored
credentials_dir: "{{ inventory_dir }}/credentials"
# Users to create for basic auth in Kubernetes API via HTTP
# Optionally add groups for user
kube_api_pwd: "{{ lookup('password', credentials_dir + '/kube_user.creds 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_username_prefix: oidc:
# kube_oidc_groups_claim: groups
# kube_oidc_groups_prefix: oidc:
# 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: calico
# Weave deployment
# weave_password: ~
# weave_checkpoint_disable: false
# weave_conn_limit: 100
# weave_hairpin_mode: true
# weave_ipalloc_range: {{ kube_pods_subnet }}
# weave_expect_npc: {{ enable_network_policy }}
# weave_kube_peers: ~
# weave_ipalloc_init: ~
# weave_expose_ip: ~
# weave_metrics_addr: ~
# weave_status_addr: ~
# weave_mtu: 1376
# weave_no_masq_local: true
# weave_extra_args: ~
# 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
# Kube-proxy nodeport address.
# cidr to bind nodeport services. Flag --nodeport-addresses on kube-proxy manifest
kube_proxy_nodeport_addresses: false
# kube_proxy_nodeport_addresses_cidr: 10.0.1.0/24
## 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: 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 }}"
## Container runtime
## docker for docker and crio for cri-o.
container_manager: docker
## 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
# audit log for kubernetes
kubernetes_audit: false
# pod security policy (RBAC must be enabled either by having 'RBAC' in authorization_modes or kubeadm enabled)
podsecuritypolicy_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: true
# Add Persistent Volumes Storage Class for corresponding cloud provider ( OpenStack is only supported now )
persistent_volumes_enabled: true
# LBaaS
openstack_lbaas_enabled: true
openstack_lbaas_floating_network_id: 6c65a7fb-4233-4d39-9b2c-cf0b91dc61bd
openstack_lbaas_subnet_id: ff662e74-ebbb-4f22-b09f-81765ca16210
openstack_blockstorage_version: 2
openstack_blockstorage_ignore_az: true
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