ansible: Install Kubernetes with Kubespray

Install Kubernetes using Kubespray, following the documentation on
integrating Kubespray in own Ansible playbooks repository:

* https://github.com/kubernetes-sigs/kubespray/blob/bc6bd21ab399ddc86d60ca440cae4f0b6ec9e636/docs/integration.md

Signed-off-by: Dimitris Poulopoulos <[email protected]>

.gitignore

@@ -1,2 +1,5 @@
 # Ignore any `build` directory
 build/
+
+# Ignore kubeadm credentials
+credentials

ansible/ansible.cfg

@@ -0,0 +1,3 @@
+[defaults]
+library = ./library/:./kubespray/library/
+roles_path = ./roles:./kubespray/roles

ansible/inventory/group_vars/k8s_cluster/addons.yml

@@ -0,0 +1,260 @@
+---
+# Kubernetes dashboard
+# RBAC required. see docs/getting-started.md for access details.
+# dashboard_enabled: false
+
+# Helm deployment
+helm_enabled: false
+
+# Registry deployment
+registry_enabled: false
+# registry_namespace: kube-system
+# registry_storage_class: ""
+# registry_disk_size: "10Gi"
+
+# Metrics Server deployment
+metrics_server_enabled: false
+# metrics_server_container_port: 10250
+# metrics_server_kubelet_insecure_tls: true
+# metrics_server_metric_resolution: 15s
+# metrics_server_kubelet_preferred_address_types: "InternalIP,ExternalIP,Hostname"
+# metrics_server_host_network: false
+# metrics_server_replicas: 1
+
+# Rancher Local Path Provisioner
+local_path_provisioner_enabled: false
+# local_path_provisioner_namespace: "local-path-storage"
+# local_path_provisioner_storage_class: "local-path"
+# local_path_provisioner_reclaim_policy: Delete
+# local_path_provisioner_claim_root: /opt/local-path-provisioner/
+# local_path_provisioner_debug: false
+# local_path_provisioner_image_repo: "rancher/local-path-provisioner"
+# local_path_provisioner_image_tag: "v0.0.24"
+# local_path_provisioner_helper_image_repo: "busybox"
+# local_path_provisioner_helper_image_tag: "latest"
+
+# Local volume provisioner deployment
+local_volume_provisioner_enabled: false
+# local_volume_provisioner_namespace: kube-system
+# local_volume_provisioner_nodelabels:
+#   - kubernetes.io/hostname
+#   - topology.kubernetes.io/region
+#   - topology.kubernetes.io/zone
+# local_volume_provisioner_storage_classes:
+#   local-storage:
+#     host_dir: /mnt/disks
+#     mount_dir: /mnt/disks
+#     volume_mode: Filesystem
+#     fs_type: ext4
+#   fast-disks:
+#     host_dir: /mnt/fast-disks
+#     mount_dir: /mnt/fast-disks
+#     block_cleaner_command:
+#       - "/scripts/shred.sh"
+#       - "2"
+#     volume_mode: Filesystem
+#     fs_type: ext4
+# local_volume_provisioner_tolerations:
+#   - effect: NoSchedule
+#     operator: Exists
+
+# CSI Volume Snapshot Controller deployment, set this to true if your CSI is able to manage snapshots
+# currently, setting cinder_csi_enabled=true would automatically enable the snapshot controller
+# Longhorn is an extenal CSI that would also require setting this to true but it is not included in kubespray
+# csi_snapshot_controller_enabled: false
+# csi snapshot namespace
+# snapshot_controller_namespace: kube-system
+
+# CephFS provisioner deployment
+cephfs_provisioner_enabled: false
+# cephfs_provisioner_namespace: "cephfs-provisioner"
+# 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
+# cephfs_provisioner_reclaim_policy: Delete
+# cephfs_provisioner_claim_root: /volumes
+# cephfs_provisioner_deterministic_names: true
+
+# RBD provisioner deployment
+rbd_provisioner_enabled: false
+# rbd_provisioner_namespace: rbd-provisioner
+# rbd_provisioner_replicas: 2
+# rbd_provisioner_monitors: "172.24.0.1:6789,172.24.0.2:6789,172.24.0.3:6789"
+# rbd_provisioner_pool: kube
+# rbd_provisioner_admin_id: admin
+# rbd_provisioner_secret_name: ceph-secret-admin
+# rbd_provisioner_secret: ceph-key-admin
+# rbd_provisioner_user_id: kube
+# rbd_provisioner_user_secret_name: ceph-secret-user
+# rbd_provisioner_user_secret: ceph-key-user
+# rbd_provisioner_user_secret_namespace: rbd-provisioner
+# rbd_provisioner_fs_type: ext4
+# rbd_provisioner_image_format: "2"
+# rbd_provisioner_image_features: layering
+# rbd_provisioner_storage_class: rbd
+# rbd_provisioner_reclaim_policy: Delete
+
+# Nginx ingress controller deployment
+ingress_nginx_enabled: false
+# ingress_nginx_host_network: false
+ingress_publish_status_address: ""
+# ingress_nginx_nodeselector:
+#   kubernetes.io/os: "linux"
+# ingress_nginx_tolerations:
+#   - key: "node-role.kubernetes.io/control-plane"
+#     operator: "Equal"
+#     value: ""
+#     effect: "NoSchedule"
+# 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: "TLSv1.2 TLSv1.3"
+# ingress_nginx_configmap_tcp_services:
+#   9000: "default/example-go:8080"
+# ingress_nginx_configmap_udp_services:
+#   53: "kube-system/coredns:53"
+# ingress_nginx_extra_args:
+#   - --default-ssl-certificate=default/foo-tls
+# ingress_nginx_termination_grace_period_seconds: 300
+# ingress_nginx_class: nginx
+# ingress_nginx_without_class: true
+# ingress_nginx_default: false
+
+# ALB ingress controller deployment
+ingress_alb_enabled: false
+# alb_ingress_aws_region: "us-east-1"
+# alb_ingress_restrict_scheme: "false"
+# Enables logging on all outbound requests sent to the AWS API.
+# If logging is desired, set to true.
+# alb_ingress_aws_debug: "false"
+
+# Cert manager deployment
+cert_manager_enabled: false
+# cert_manager_namespace: "cert-manager"
+# cert_manager_tolerations:
+#   - key: node-role.kubernetes.io/control-plane
+#     effect: NoSchedule
+# cert_manager_affinity:
+#  nodeAffinity:
+#    preferredDuringSchedulingIgnoredDuringExecution:
+#    - weight: 100
+#      preference:
+#        matchExpressions:
+#        - key: node-role.kubernetes.io/control-plane
+#          operator: In
+#          values:
+#          - ""
+# cert_manager_nodeselector:
+#   kubernetes.io/os: "linux"
+
+# cert_manager_trusted_internal_ca: |
+#   -----BEGIN CERTIFICATE-----
+#   [REPLACE with your CA certificate]
+#   -----END CERTIFICATE-----
+# cert_manager_leader_election_namespace: kube-system
+
+# cert_manager_dns_policy: "ClusterFirst"
+# cert_manager_dns_config:
+#   nameservers:
+#     - "1.1.1.1"
+#     - "8.8.8.8"
+
+# cert_manager_controller_extra_args:
+#   - "--dns01-recursive-nameservers-only=true"
+#   - "--dns01-recursive-nameservers=1.1.1.1:53,8.8.8.8:53"
+
+# MetalLB deployment
+metallb_enabled: false
+metallb_speaker_enabled: "{{ metallb_enabled }}"
+# metallb_version: v0.13.9
+# metallb_protocol: "layer2"
+# metallb_port: "7472"
+# metallb_memberlist_port: "7946"
+# metallb_config:
+#   speaker:
+#     nodeselector:
+#       kubernetes.io/os: "linux"
+#     tollerations:
+#       - key: "node-role.kubernetes.io/control-plane"
+#         operator: "Equal"
+#         value: ""
+#         effect: "NoSchedule"
+#   controller:
+#     nodeselector:
+#       kubernetes.io/os: "linux"
+#     tolerations:
+#       - key: "node-role.kubernetes.io/control-plane"
+#         operator: "Equal"
+#         value: ""
+#         effect: "NoSchedule"
+#   address_pools:
+#     primary:
+#       ip_range:
+#         - 10.5.0.0/16
+#       auto_assign: true
+#     pool1:
+#       ip_range:
+#         - 10.6.0.0/16
+#       auto_assign: true
+#     pool2:
+#       ip_range:
+#         - 10.10.0.0/16
+#       auto_assign: true
+#   layer2:
+#     - primary
+#   layer3:
+#     defaults:
+#       peer_port: 179
+#       hold_time: 120s
+#     communities:
+#       vpn-only: "1234:1"
+#       NO_ADVERTISE: "65535:65282"
+#     metallb_peers:
+#         peer1:
+#           peer_address: 10.6.0.1
+#           peer_asn: 64512
+#           my_asn: 4200000000
+#           communities:
+#             - vpn-only
+#           address_pool:
+#             - pool1
+#         peer2:
+#           peer_address: 10.10.0.1
+#           peer_asn: 64513
+#           my_asn: 4200000000
+#           communities:
+#             - NO_ADVERTISE
+#           address_pool:
+#             - pool2
+
+argocd_enabled: false
+# argocd_version: v2.8.4
+# argocd_namespace: argocd
+# Default password:
+#   - https://argo-cd.readthedocs.io/en/stable/getting_started/#4-login-using-the-cli
+#   ---
+#   The initial password is autogenerated and stored in `argocd-initial-admin-secret` in the argocd namespace defined above.
+#   Using the argocd CLI the generated password can be automatically be fetched from the current kubectl context with the command:
+#   argocd admin initial-password -n argocd
+#   ---
+# Use the following var to set admin password
+# argocd_admin_password: "password"
+
+# The plugin manager for kubectl
+krew_enabled: false
+krew_root_dir: "/usr/local/krew"
+
+# Kube VIP
+kube_vip_enabled: false
+# kube_vip_arp_enabled: true
+# kube_vip_controlplane_enabled: true
+# kube_vip_address: 192.168.56.120
+# loadbalancer_apiserver:
+#   address: "{{ kube_vip_address }}"
+#   port: 6443
+# kube_vip_interface: eth0
+# kube_vip_services_enabled: false