# libvirt__ipv6_address does not work as intended, the address is obtained with the desired prefix, but auto-generated(like fd3c:b398:698:756:5054:ff:fe48:c61e/64)
# add default route for detect ansible_default_ipv6
# TODO: fix libvirt__ipv6 or use $subnet in shell
config.vm.provision "shell", inline: "ip -6 r a fd3c:b398:698:756::/64 dev eth1;ip -6 r add default via fd3c:b398:0698:0756::1 dev eth1 || true"
@ -38,16 +38,11 @@ Some variables of note include:
* *access_ip* - IP to use from other hosts to connect to this host. Often required when deploying
from a cloud, such as OpenStack or GCE and you have separate public/floating and private IPs.
This would **usually** be the private ip.
* *access_ip6* - IPv6 to use from other hosts to connect to this host.
* *ansible_default_ipv4.address* - Not Kubespray-specific, but it is used if ip
and access_ip are undefined
* *ansible_default_ipv6.address* - Not Kubespray-specific, but it is used if ip
and access_ip6 are undefined
* *ip6* - IPv6 address to use for binding services. (host var)
If *enable_dual_stack_networks* is set to ``true`` and *ip6* is defined,
kubelet's ``--node-ip`` and node's ``InternalIP`` will be the combination of *ip* and *ip6*.
If *enable_ipv6only_stack_networks* is set to ``true``,
kubelet's ``--node-ip`` and node's ``InternalIP`` will be use only *ip6*.
* *loadbalancer_apiserver* - If defined, all hosts will connect to this
address instead of localhost for kube_control_planes and kube_control_plane[0] for
kube_nodes. See more details in the
@ -90,8 +85,6 @@ following default cluster parameters:
* *enable_dual_stack_networks* - Setting this to true will provision both IPv4 and IPv6 networking for pods and services.
* *enable_ipv6only_stack_networks* - Setting this to true will provision IPv6 only networking for pods and services.
* *kube_service_addresses_ipv6* - Subnet for cluster IPv6 IPs (default is ``fd85:ee78:d8a6:8607::1000/116``). Must not overlap with ``kube_pods_subnet_ipv6``.
* *kube_pods_subnet_ipv6* - Subnet for Pod IPv6 IPs (default is ``fd85:ee78:d8a6:8607::1:0000/112``). Must not overlap with ``kube_service_addresses_ipv6``.
@ -162,7 +155,6 @@ and ``kube_pods_subnet``, for example from the ``172.18.0.0/16``.
## Enabling Dual Stack (IPV4 + IPV6) networking
If *enable_dual_stack_networks* is set to ``true``, Dual Stack networking will be enabled in the cluster. This will use the default IPv4 and IPv6 subnets specified in the defaults file in the ``kubespray-defaults`` role, unless overridden of course. The default config will give you room for up to 256 nodes with 126 pods per node, and up to 4096 services.
Also you can use *enable_ipv6only_stack_networks* for ipv6 only networking.
{% if ('access_ip6' in hostvars[item] or 'ip6' in hostvars[item] or hostvars[item]['ansible_default_ipv6']) and (enable_ipv6only_stack_networks or enable_dual_stack_networks) -%}
# NOTE: If you specific address/interface and use loadbalancer_apiserver_localhost
# loadbalancer_apiserver_localhost (nginx/haproxy) will deploy on control plane nodes on 127.0.0.1:{{ loadbalancer_apiserver_port | default(kube_apiserver_port) }} too.
{% if calico_advertise_cluster_ips | default(false) %}
"serviceClusterIPs": [{% for cidr in kube_service_addresses_range.split(",") %}{{ "," if not loop.first }}{"cidr": "{{ cidr }}"}{% endfor %}],{% endif %}
- --default-exclude-ips={% if kube_ovn_default_exclude_ips is defined %}{{ kube_ovn_default_exclude_ips }}{% endif %}{{ '' }}
- --node-switch-cidr={{ [kube_ovn_node_switch_cidr if not enable_ipv6only_stack_networks, kube_ovn_node_switch_cidr_ipv6 if (enable_dual_stack_networks or enable_ipv6only_stack_networks)] | reject('match', '^$') | join(',') }}{{ '' }}
- --external-address={{ [kube_ovn_external_address if not enable_ipv6only_stack_networks, kube_ovn_external_address_ipv6 if (enable_dual_stack_networks or enable_ipv6only_stack_networks)] | reject('match', '^$') | join(',') }}{{ '' }}
Antoine Legrand
2 months ago
GitHub