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[docs] document support for ansible versions (#8827)

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drop note about not supporting ansible 2.9 since we still cover it in
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Cristian Calin 2022-05-16 10:50:17 +03:00 committed by GitHub
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2
docs/_sidebar.md
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@ -34,7 +34,7 @@
* [Fedora CoreOS](docs/fcos.md)
* [OpenSUSE](docs/opensuse.md)
* [RedHat Enterprise Linux](docs/rhel.md)
* [CentOS/OracleLinux/AlmaLinux/Rocky Linux](docs/centos8.md)
* [CentOS/OracleLinux/AlmaLinux/Rocky Linux](docs/centos.md)
* [Amazon Linux 2](docs/amazonlinux.md)
* CRI
* [Containerd](docs/containerd.md)

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docs/ansible.md
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# Ansible variables
# Ansible
## Installing Ansible
Kubespray supports multiple ansible versions and ships different `requirements.txt` files for them.
Depending on your available python version you may be limited in chooding which ansible version to use.
It is recommended to deploy the ansible version used by kubespray into a python virtual environment.
```ShellSession
VENVDIR=kubespray-venv
KUBESPRAYDIR=kubespray
ANSIBLE_VERSION=2.12
virtualenv --python=$(which python3) $VENVDIR
source $VENVDIR/bin/activate
cd $KUESPRAYDIR
pip install -U -r requirements-$ANSIBLE_VERSION.txt
test -f requirements-$ANSIBLE_VERSION.yml && \
ansible-galaxy role install -r requirements-$ANSIBLE_VERSION.yml && \
ansible-galaxy collection -r requirements-$ANSIBLE_VERSION.yml
```
### Ansible Python Compatibility
Based on the table below and the available python version for your ansible host you should choose the appropriate ansible version to use with kubespray.
| Ansible Version | Python Version |
| --------------- | -------------- |
| 2.9 | 2.7,3.5-3.8 |
| 2.10 | 2.7,3.5-3.8 |
| 2.11 | 2.7,3.5-3.9 |
| 2.12 | 3.8-3.10 |
## Inventory
@ -272,9 +303,3 @@ pip uninstall ansible ansible-base ansible-core
cd kubespray/
pip install -U .
```
**Note:** some changes needed to support ansible 2.10+ are not backwards compatible with 2.9
Kubespray needs to evolve and keep pace with upstream ansible and will be forced to eventually
drop 2.9 support. Kubespray CIs use only the ansible version specified in the `requirements.txt`
and while the `ansible_version.yml` may allow older versions to be used, these are not
exercised in the CI and compatibility is not guaranteed.

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docs/centos8.md → docs/centos.md
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# CentOS 8 and derivatives
# CentOS and derivatives
## CentOS 7
The maximum python version offically supported in CentOS is 3.6. Ansible as of version 5 (ansible core 2.12.x) increased their python requirement to python 3.8 and above.
Kubespray supports multiple ansible versions but only the default (5.x) gets wide testing coverage. If your deployment host is CentOS 7 it is recommended to use one of the earlier versions still supported.
## CentOS 8
CentOS 8 / Oracle Linux 8 / AlmaLinux 8 / Rocky Linux 8 ship only with iptables-nft (ie without iptables-legacy similar to RHEL8)
The only tested configuration for now is using Calico CNI