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Update network installation doc

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This commit is contained in:
Roberto Bonafiglia
2022-03-21 09:43:46 +01:00
committed by GitHub
parent 3f4883d593
commit 814150760a
1 changed files with 3 additions and 11 deletions
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content/k3s/latest/en/installation/network-options/_index.md
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@@ -79,10 +79,7 @@ Dual-stack is supported on k3s v1.21 or above.
To enable dual-stack in k3s, you must provide valid dual-stack `cluster-cidr` and `service-cidr`, and set `disable-network-policy` on all server nodes. Both servers and agents must provide valid dual-stack `node-ip` settings. Node address auto-detection and network policy enforcement are not supported on dual-stack clusters when using the default flannel CNI. Besides, only vxlan backend is supported at the moment. This is an example of a valid configuration:
```
node-ip: 10.0.10.7,2a05:d012:c6f:4611:5c2:5602:eed2:898c
cluster-cidr: 10.42.0.0/16,2001:cafe:42:0::/56
service-cidr: 10.43.0.0/16,2001:cafe:42:1::/112
disable-network-policy: true
k3s server --node-ip 10.0.10.7,2a05:d012:c6f:4611:5c2:5602:eed2:898c --cluster-cidr 10.42.0.0/16,2001:cafe:42:0::/56 --service-cidr 10.43.0.0/16,2001:cafe:42:1::/112 --disable-network-policy
```
Note that you can choose whatever `cluster-cidr` and `service-cidr` value, however the `node-ip` values must correspond to the ip addresses of your main interface. Remember to allow ipv6 traffic if you are deploying in a public cloud.
@@ -91,15 +88,10 @@ If you are using a custom cni plugin, i.e. a cni plugin different from flannel,
### IPv6 only installation
IPv6 only setup is supported on k3s v1.22 or above.
IPv6 only setup requires a similar setup as dual-stack where you must provide a valid IPv6 `node-ip` on both servers and agents. This is an example of a valid configuration:
IPv6 only setup is supported on k3s v1.22 or above. As in dual-stack operation, IPv6 node addresses cannot be auto-detected; all nodes must have an explicitly configured IPv6 `node-ip`. This is an example of a valid configuration:
```
node-ip: 2a05:d012:c6f:4611:5c2:5602:eed2:898c
cluster-cidr: 2001:cafe:42:0::/56
service-cidr: 2001:cafe:42:1::/112
disable-network-policy: true
k3s server --node-ip 2a05:d012:c6f:4611:5c2:5602:eed2:898c --cluster-cidr 2001:cafe:42:0::/56 --service-cidr 2001:cafe:42:1::/112 --disable-network-policy
```
Note that you can specify only one IPv6 `cluster-cidr` value.