- Introduction
- Requirements
- Dependencies
- Variables
- Example Playbooks
- License
- contributors
- Author Information
An Ansible Role that installs Kubernetes on Linux.
- Docker; recommended role for Docker installation:
geerlingguy.docker. - Loadbalancer or keepalived for HA; recommended role for keepalived installations:
evrardjp.keepalived
- Python library Docker
| Name | Default | Describtion |
|---|---|---|
| kubernetes_cluster_name | "kubernetes" | kubernetes cluster name |
| kubernetes_master_version | "v1.13.2" | This is the version of the kubernetes master components |
| kubernetes_version_rhel_package | '1.13.2' | only redhat, version of kubectl,kubeadm,kubelet |
| kubernetes_yum_arch | x86_64 | only redhat |
| kubernetes_apt_repo_url | http://apt.kubernetes.io/ | only debian, kubernetes repository |
| kubernetes_apt_repo_pool | kubernetes-xenial | only debian, kubernetes repository pool |
| kubernetes_useHyperKubeImage | "false" | switch to change control-plane docker image to hyperkube |
| kubernetes_dns_type | "CoreDNS" | dns plugin in kubernetes, could be: "kube-dns" or "CoreDNS" |
| kubernetes_imageRepository | "k8s.gcr.io" | docker registry for kubernetes master components |
| kubernetes_config_dir | "/etc/kubernetes" | Config path |
| kubernetes_certs_dir | "{{ kubernetes_config_dir }}/pki" | certs folder |
| kubernetes_pod_manifest_path | Absoulte path where static pod manifests will be stored | "{{ kubernetes_config_dir }}/manifests" |
| kubernetes_log_dir | "{{ kubernetes_log_dir }}/audit" | log folder |
| kubernetes_audit_log_dir | "/var/log/kubernetes/audit" | audit log folder |
| kubernetes_log_age | 2 | max age of logfiles |
| kubernetes_authorization_mode | "Node,RBAC" | kubernetes authorization mode |
| kubernetes_enable_admission_plugins | "Initializers,NamespaceLifecycle,LimitRanger,ServiceAccount,DefaultStorageClass,DefaultTolerationSeconds,NodeRestriction,MutatingAdmissionWebhook,ValidatingAdmissionWebhook,ResourceQuota" | kubernetes enabled admission plugins |
| kubernetes_dns_domain | "cluster.local" | internal dns domain in kubernetes cluster |
| kubernetes_pod_subnet | "10.244.0.0/16" | ipv4 subnet for pods, must be a cidr |
| kubernetes_service_subnet | "10.96.0.0/16" | ipv4 subnet vor service, must be a cidr |
| kubernetes_kubelet_extra_args | "" | extra arguments for the kubelet daemon |
| kubernetes_packages | false | - name: kubelet |
state: present |
||
- name: kubectl |
||
state: present |
||
- name: kubeadm |
||
state: present |
||
- name: kubernetes-cni |
||
state: present |
||
| kubernetes_version_kubeadm | 'stable-{{ kubernetes_version }}' | version of kubeadm |
| Name | Default | Describtion |
|---|---|---|
| kubernetes_apiserver_dns | "" |
dns-name for kubernetes apiserver |
| kubernetes_apiserver_ip | - | virtual ip of kubernetes apiserver loadbalancer |
| kubernetes_apiserver_port | 6443 |
port of kubernetes apiserver |
| kubernetes_apiserver_manifest_file | '{{ kubernetes_pod_manifest_path }}/kube-apiserver.yaml' |
Absolute path to manifest file |
| Name | Description | Default |
|---|---|---|
| kubernetes_etcd_certs_dir | Path to store Etcd certificates | '{{ kubernetes_certs_dir }}/etcd' |
| kubernetes_etcd_ca_cert_file | Etcd root CA certificate file | '{{ kubernetes_etcd_certs_dir }}/ca.crt' |
| kubernetes_etcd_ca_key_file | Etcd root CA key file | '{{ kubernetes_etcd_certs_dir }}/ca.key' |
| kubernetes_etcd_server_cert_file | Etcd server certificate file | '{{ kubernetes_etcd_certs_dir }}/server.crt' |
| kubernetes_etcd_server_key_file | Etcd server key file | '{{ kubernetes_etcd_certs_dir }}/server.key' |
| kubernetes_etcd_peer_cert_file | '{{ kubernetes_etcd_certs_dir }}/peer.crt' |
|
| kubernetes_etcd_peer_key_file | '{{ kubernetes_etcd_certs_dir }}/peer.key' |
|
| kubernetes_etcd_healthcheck_client_cert_file | '{{ kubernetes_etcd_certs_dir }}/healthcheck-client.crt' |
|
| kubernetes_etcd_healthcheck_client_key_file | '{{ kubernetes_etcd_certs_dir }}/healthcheck-client.key' |
|
| kubernetes_etcd_apiserver_client_cert_file | '{{ kubernetes_certs_dir }}/apiserver-etcd-client.crt' |
|
| kubernetes_etcd_apiserver_client_key_file | '{{ kubernetes_certs_dir }}/apiserver-etcd-client.key' |
|
| kubernetes_etcd_manifest_file | '{{ kubernetes_pod_manifest_path }}/etcd.yaml' |
|
| kubernetes_etcd_data_dir | folder for etcd data | /var/etcd |
| kubernetes_etcd_server_port | Etcd server communication port | 2380 |
| kubernetes_etcd_client_port | Etcd client communication port | 2379 |
| Name | Description | Default |
|---|---|---|
| kubernetes_controller_manager_manifest_file | Absolute path to manifest file | '{{ kubernetes_pod_manifest_path }}/kube-controller-manager.yaml' |
| Name | Description | Default |
|---|---|---|
| kubernetes_kubeadm_config_file_path | Path to store kubeadm config file | '{{ kubernetes_config_dir }}/kubeadm' |
| kubernetes_kubeadm_config_file_name | Name of kubeadm config file | clusterconfig.yaml |
| Name | Description | Default |
|---|---|---|
| kubernetes_scheduler_manifest_file | Absolute path to manifest file | '{{ kubernetes_pod_manifest_path }}/kube-scheduler.yaml' |
| Name | Description | Default |
|---|---|---|
| kubernetes_cloud_provider | choose supported cloudprovider, values: "" or "vsphere" | "" |
| kubernetes_cloud_config_file | path for cloud_config file | "{{ kubernetes_config_dir }}/{{ kubernetes_cloud_provider }}.conf" |
| kubernetes_cloud_vsphere_workspace_server | option server in area [workspace] of the cloud_config (only vsphere) | "" |
| kubernetes_cloud_vsphere_workspace_datacenter | option datacenter in area [workspace] of the cloud_config (only vsphere) | "" |
| kubernetes_cloud_vsphere_workspace_default_datastore | option default_datastore in area [workspace] of the cloud_config (only vsphere) | "" |
| kubernetes_cloud_vsphere_workspace_folder | option folder in area [workspace] of the cloud_config (only vsphere) | "" |
| kubernetes_cloud_vsphere_default_user | option user in the area [global] of the cloud_config (only vsphere) | "" |
| kubernetes_cloud_vsphere_default_password | option password in the area [global] of the cloud_config (only vsphere) | "" |
| kubernetes_cloud_vsphere_datacenters | list of datacenters with the attributes: server,datatcenters,username,password of the cloud_config (only vsphere) | [] |
| kubernetes_cloud_vsphere_network_options | all options in the area [network] of the cloud_config (only vsphere) | [] |
| kubernetes_cloud_vsphere_disk_options | all options in the area [disk] of the cloud_config (only vsphere) | [] |
There is an Vagrantfile to create all servers for all szenarios: Vagrantfile servers.yml (needed for Vagrantfile)
Apache 2.0
created in 2018 by André Möller