c12s-kubespray/docs/macvlan.md
Cristian Calin 360aff4a57
Rename ansible groups to use _ instead of - (#7552)
* rename ansible groups to use _ instead of -

k8s-cluster -> k8s_cluster
k8s-node -> k8s_node
calico-rr -> calico_rr
no-floating -> no_floating

Note: kube-node,k8s-cluster groups in upgrade CI
      need clean-up after v2.16 is tagged

* ensure old groups are mapped to the new ones
2021-04-29 05:20:50 -07:00

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# Macvlan
## How to use it
* Enable macvlan in `group_vars/k8s_cluster/k8s_cluster.yml`
```yml
...
kube_network_plugin: macvlan
...
```
* Adjust the `macvlan_interface` in `group_vars/k8s_cluster/k8s-net-macvlan.yml` or by host in the `host.yml` file:
```yml
all:
hosts:
node1:
ip: 10.2.2.1
access_ip: 10.2.2.1
ansible_host: 10.2.2.1
macvlan_interface: ens5
```
## Issue encountered
* Service DNS
reply from unexpected source:
add `kube_proxy_masquerade_all: true` in `group_vars/all/all.yml`
* Disable nodelocaldns
The nodelocal dns IP is not reacheable.
Disable it in `sample/group_vars/k8s_cluster/k8s_cluster.yml`
```yml
enable_nodelocaldns: false
```