# 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: v1.12.2 # kubernetes image repo define kube_image_repo: "gcr.io/google-containers" # 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 # 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 # dynamic kubelet configuration dynamic_kubelet_configuration: false # define kubelet config dir for dynamic kubelet #kubelet_config_dir: default_kubelet_config_dir: "{{ kube_config_dir }}/dynamic_kubelet_dir" dynamic_kubelet_configuration_dir: "{{ kubelet_config_dir | default(default_kubelet_config_dir) }}" # 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: false # Add Persistent Volumes Storage Class for corresponding cloud provider ( OpenStack is only supported now ) persistent_volumes_enabled: false ## Container Engine Acceleration ## Enable container acceleration feature, for example use gpu acceleration in containers # nvidia_accelerator_enabled: true ## Nvidia GPU driver install. Install will by done by a (init) pod running as a daemonset. ## Important: if you use Ubuntu then you should set in all.yml 'docker_storage_options: -s overlay2' ## Array with nvida_gpu_nodes, leave empty or comment if you dont't want to install drivers. ## Labels and taints won't be set to nodes if they are not in the array. # nvidia_gpu_nodes: # - kube-gpu-001 # nvidia_driver_version: "384.111" ## flavor can be tesla or gtx # nvidia_gpu_flavor: gtx