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Add support for ipv6 only cluster via "enable_ipv6only_stack_networks" (#11831)

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Boris
2025-01-27 15:15:22 +03:00
committed by GitHub
parent e107022b4b
commit 76c0a3aa75
37 changed files with 216 additions and 104 deletions
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15
inventory/sample/group_vars/k8s_cluster/k8s-cluster.yml
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@@ -100,24 +100,27 @@ kube_network_node_prefix: 24
# Configure Dual Stack networking (i.e. both IPv4 and IPv6)
enable_dual_stack_networks: false
# Configure IPv6 only
enable_ipv6only_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 is used if enable_dual_stack_networks or enable_ipv6only_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 is used if enable_dual_stack_networks or enable_ipv6only_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 is used if enable_dual_stack_networks or enable_ipv6only_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 | ansible.utils.ipaddr('net') | ansible.utils.ipaddr(1) | ansible.utils.ipaddr('address') }}"
kube_apiserver_ip: "{{ (kube_service_addresses_ipv6 if enable_ipv6only_stack_networks else kube_service_addresses) | ansible.utils.ipaddr('net') | ansible.utils.ipaddr(1) | ansible.utils.ipaddr('address') }}"
kube_apiserver_port: 6443 # (https)
# Kube-proxy proxyMode configuration.
@@ -215,8 +218,8 @@ resolvconf_mode: host_resolvconf
# 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 | ansible.utils.ipaddr('net') | ansible.utils.ipaddr(3) | ansible.utils.ipaddr('address') }}"
skydns_server_secondary: "{{ kube_service_addresses | ansible.utils.ipaddr('net') | ansible.utils.ipaddr(4) | ansible.utils.ipaddr('address') }}"
skydns_server: "{{ (kube_service_addresses_ipv6 if enable_ipv6only_stack_networks else kube_service_addresses) | ansible.utils.ipaddr('net') | ansible.utils.ipaddr(3) | ansible.utils.ipaddr('address') }}"
skydns_server_secondary: "{{ (kube_service_addresses_ipv6 if enable_ipv6only_stack_networks else kube_service_addresses) | ansible.utils.ipaddr('net') | ansible.utils.ipaddr(4) | ansible.utils.ipaddr('address') }}"
dns_domain: "{{ cluster_name }}"
## Container runtime