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Revert "Add support for ipv6 only cluster via "enable_ipv6only_stack_networks…" (#11941)

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This reverts commit 76c0a3aa75.
This commit is contained in:
Antoine Legrand
2025-02-03 16:06:58 +01:00
committed by GitHub
parent 59e1638ae1
commit 4373c1be1d
37 changed files with 104 additions and 216 deletions
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8
docs/ansible/vars.md
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@@ -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.
## DNS variables