--- # 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 same 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" kube_api_anonymous_auth: true ## Change this to use another Kubernetes version, e.g. a current beta release kube_version: v1.21.2 # 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" ## It is possible to activate / deactivate selected authentication methods (oidc, static token auth) # kube_oidc_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:' ## Variables to control webhook authn/authz # kube_webhook_token_auth: false # kube_webhook_token_auth_url: https://... # kube_webhook_token_auth_url_skip_tls_verify: false ## For webhook authorization, authorization_modes must include Webhook # kube_webhook_authorization: false # kube_webhook_authorization_url: https://... # kube_webhook_authorization_url_skip_tls_verify: false # Choose network plugin (cilium, calico, weave or flannel. Use cni for generic cni plugin) # Can also be set to 'cloud', which lets the cloud provider setup appropriate routing kube_network_plugin: calico # Setting multi_networking to true will install Multus: https://github.com/intel/multus-cni kube_network_plugin_multus: 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 for pod IP address allocation. Note that the number of pods per node is # also limited by the kubelet_max_pods variable which defaults to 110. # # Example: # Up to 64 nodes and up to 254 or kubelet_max_pods (the lowest of the two) pods per node: # - kube_pods_subnet: 10.233.64.0/18 # - kube_network_node_prefix: 24 # - kubelet_max_pods: 110 # # Example: # Up to 128 nodes and up to 126 or kubelet_max_pods (the lowest of the two) pods per node: # - kube_pods_subnet: 10.233.64.0/18 # - kube_network_node_prefix: 25 # - kubelet_max_pods: 110 kube_network_node_prefix: 24 # Configure Dual Stack networking (i.e. both IPv4 and IPv6) enable_dual_stack_networks: false # Kubernetes internal network for IPv6 services, unused block of space. # This is only used if enable_dual_stack_networks is set to true # This provides 4096 IPv6 IPs kube_service_addresses_ipv6: fd85:ee78:d8a6:8607::1000/116 # Internal network. When used, it will assign IPv6 addresses from this range to individual pods. # This network must not already be in your network infrastructure! # This is only used if enable_dual_stack_networks is set to true. # This provides room for 256 nodes with 254 pods per node. kube_pods_subnet_ipv6: fd85:ee78:d8a6:8607::1:0000/112 # IPv6 subnet size allocated to each for pods. # This is only used if enable_dual_stack_networks is set to true # This provides room for 254 pods per node. kube_network_node_prefix_ipv6: 120 # 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: ipvs # configure arp_ignore and arp_announce to avoid answering ARP queries from kube-ipvs0 interface # must be set to true for MetalLB to work kube_proxy_strict_arp: false # A string slice of values which specify the addresses to use for NodePorts. # Values may be valid IP blocks (e.g. 1.2.3.0/24, 1.2.3.4/32). # The default empty string slice ([]) means to use all local addresses. # kube_proxy_nodeport_addresses_cidr is retained for legacy config kube_proxy_nodeport_addresses: >- {%- if kube_proxy_nodeport_addresses_cidr is defined -%} [{{ kube_proxy_nodeport_addresses_cidr }}] {%- else -%} [] {%- endif -%} # If non-empty, will use this string as identification instead of the actual hostname # kube_override_hostname: >- # {%- if cloud_provider is defined and cloud_provider in [ 'aws' ] -%} # {%- else -%} # {{ inventory_hostname }} # {%- endif -%} ## Encrypting Secret Data at Rest (experimental) kube_encrypt_secret_data: false # Graceful Node Shutdown (Kubernetes >= 1.21.0), see https://kubernetes.io/blog/2021/04/21/graceful-node-shutdown-beta/ # kubelet_shutdown_grace_period: 60s # kubelet_shutdown_grace_period_critical_pods: 20s # 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 coredns, coredns_dual, manual or none dns_mode: coredns # Set manual server if using a custom cluster DNS server # manual_dns_server: 10.x.x.x # Enable nodelocal dns cache enable_nodelocaldns: true nodelocaldns_ip: 169.254.25.10 nodelocaldns_health_port: 9254 nodelocaldns_bind_metrics_host_ip: false # nodelocaldns_external_zones: # - zones: # - example.com # - example.io:1053 # nameservers: # - 1.1.1.1 # - 2.2.2.2 # cache: 5 # - zones: # - https://mycompany.local:4453 # nameservers: # - 192.168.0.53 # cache: 0 # Enable k8s_external plugin for CoreDNS enable_coredns_k8s_external: false coredns_k8s_external_zone: k8s_external.local # Enable endpoint_pod_names option for kubernetes plugin enable_coredns_k8s_endpoint_pod_names: false # 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') }}" dns_domain: "{{ cluster_name }}" ## Container runtime ## docker for docker, crio for cri-o and containerd for containerd. container_manager: docker # Additional container runtimes kata_containers_enabled: false kubeadm_certificate_key: "{{ lookup('password', credentials_dir + '/kubeadm_certificate_key.creds length=64 chars=hexdigits') | lower }}" # 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 # Custom PodSecurityPolicySpec for restricted policy # podsecuritypolicy_restricted_spec: {} # Custom PodSecurityPolicySpec for privileged policy # podsecuritypolicy_privileged_spec: {} # 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 # 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 ## Optionally reserve resources for OS system daemons. # system_reserved: true ## Uncomment to override default values # system_memory_reserved: 512Mi # system_cpu_reserved: 500m ## Reservation for master hosts # system_master_memory_reserved: 256Mi # system_master_cpu_reserved: 250m # An alternative flexvolume plugin directory # kubelet_flexvolumes_plugins_dir: /usr/libexec/kubernetes/kubelet-plugins/volume/exec ## 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-sigs/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 (supported: in-tree OpenStack, Cinder CSI, ## AWS EBS CSI, Azure Disk CSI, GCP Persistent Disk CSI) 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 don'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 ## NVIDIA driver installer images. Change them if you have trouble accessing gcr.io. # nvidia_driver_install_centos_container: atzedevries/nvidia-centos-driver-installer:2 # nvidia_driver_install_ubuntu_container: gcr.io/google-containers/ubuntu-nvidia-driver-installer@sha256:7df76a0f0a17294e86f691c81de6bbb7c04a1b4b3d4ea4e7e2cccdc42e1f6d63 ## NVIDIA GPU device plugin image. # nvidia_gpu_device_plugin_container: "k8s.gcr.io/nvidia-gpu-device-plugin@sha256:0842734032018be107fa2490c98156992911e3e1f2a21e059ff0105b07dd8e9e" ## Support tls min version, Possible values: VersionTLS10, VersionTLS11, VersionTLS12, VersionTLS13. # tls_min_version: "" ## Support tls cipher suites. # tls_cipher_suites: {} # - TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA # - TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 # - TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 # - TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA # - TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 # - TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305 # - TLS_ECDHE_ECDSA_WITH_RC4_128_SHA # - TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA # - TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA # - TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 # - TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 # - TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA # - TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 # - TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305 # - TLS_ECDHE_RSA_WITH_RC4_128_SHA # - TLS_RSA_WITH_3DES_EDE_CBC_SHA # - TLS_RSA_WITH_AES_128_CBC_SHA # - TLS_RSA_WITH_AES_128_CBC_SHA256 # - TLS_RSA_WITH_AES_128_GCM_SHA256 # - TLS_RSA_WITH_AES_256_CBC_SHA # - TLS_RSA_WITH_AES_256_GCM_SHA384 # - TLS_RSA_WITH_RC4_128_SHA ## Amount of time to retain events. (default 1h0m0s) event_ttl_duration: "1h0m0s" ## Automatically renew K8S control plane certificates on first Monday of each month auto_renew_certificates: false # First Monday of each month # auto_renew_certificates_systemd_calendar: "Mon *-*-1,2,3,4,5,6,7 03:{{ groups['kube_control_plane'].index(inventory_hostname) }}0:00"