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[calico] don't enable ipip encapsulation by default and use vxlan in CI (#8434)

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* [calico] make vxlan encapsulation the default

* don't enable ipip encapsulation by default
* set calico_network_backend by default to vxlan
* update sample inventory and documentation

* [CI] pin default calico parameters for upgrade tests to ensure proper upgrade

* [CI] improve netchecker connectivity testing

* [CI] show logs for tests

* [calico] tweak task name

* [CI] Don't run the provisioner from vagrant since we run it in testcases_run.sh

* [CI] move kube-router tests to vagrant to avoid network connectivity issues during netchecker check

* service proxy mode still fails connectivity tests so keeping it manual mode

* [kube-router] account for containerd use-case
This commit is contained in:
Cristian Calin
2022-03-18 03:05:39 +02:00
committed by GitHub
parent a86d9bd8e8
commit dd2d95ecdf
26 changed files with 229 additions and 82 deletions
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37
docs/calico.md
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@@ -210,23 +210,42 @@ calico_node_readinessprobe_timeout: 10
## Config encapsulation for cross server traffic
Calico supports two types of encapsulation: [VXLAN and IP in IP](https://docs.projectcalico.org/v3.11/networking/vxlan-ipip). VXLAN is supported in some environments where IP in IP is not (for example, Azure).
Calico supports two types of encapsulation: [VXLAN and IP in IP](https://docs.projectcalico.org/v3.11/networking/vxlan-ipip). VXLAN is the more mature implementation and enabled by default, please check your environment if you need *IP in IP* encapsulation.
*IP in IP* and *VXLAN* is mutualy exclusive modes.
Configure Ip in Ip mode. Possible values is `Always`, `CrossSubnet`, `Never`.
```yml
calico_ipip_mode: 'Always'
```
Configure VXLAN mode. Possible values is `Always`, `CrossSubnet`, `Never`.
### IP in IP mode
To configure Ip in Ip mode you need to use the bird network backend.
```yml
calico_ipip_mode: 'Always' # Possible values is `Always`, `CrossSubnet`, `Never`
calico_vxlan_mode: 'Never'
calico_network_backend: 'bird'
```
If you use VXLAN mode, BGP networking is not required. You can disable BGP to reduce the moving parts in your cluster by `calico_network_backend: vxlan`
### VXLAN mode (default)
To configure VXLAN mode you can use the default settings, the example below is provided for your reference.
```yml
calico_ipip_mode: 'Never'
calico_vxlan_mode: 'Always' # Possible values is `Always`, `CrossSubnet`, `Never`.
calico_network_backend: 'vxlan'
```
In VXLAN mode BGP networking is not required.
We disable BGP to reduce the moving parts in your cluster by `calico_network_backend: vxlan`
### BGP mode
To enable BGP no-encapsulation mode:
```yml
calico_ipip_mode: 'Never'
calico_vxlan_mode: 'Never'
calico_network_backend: 'bird'
```
## Configuring interface MTU