According to the canal github[1] the repo is not maintained over 5 years.
In addition, the README says
```
Originally, we thought we might more deeply integrate the two projects
(possibly even going as far as a rebranding!). However, over time it
became clear that that wasn't really necessary to fulfil our goal of
making them work well together. Ultimately, we decided to focus on
adding features to both projects rather than doing work just to
combine them.
```
So it is difficult to support canal by Kubespray at this situation.
[1]: https://github.com/projectcalico/canal
* Add calico 3.7.3 support
* add calico_datastore variable to policy controller role
* add missing clusterrole rules for calico policy controller
* disable calico kube controller when kdd mode is used for versions < 3.6
* Adding yaml linter to ci check
* Minor linting fixes from yamllint
* Changing CI to install python pkgs from requirements.txt
- adding in a secondary requirements.txt for tests
- moving yamllint to tests requirements
By default Calico CNI does not create any network access policies
or profiles if 'policy' is enabled in CNI config. And without any
policies/profiles network access to/from PODs is blocked.
K8s related policies are created by calico-policy-controller in
such case. So we need to start it as soon as possible, before any
real workloads.
This patch also fixes kube-api port in calico-policy-controller
yaml template.
Closes#1132
Kenichi Omichi
Olivier Levitt
efrikin
Sergey
jlacoline
Wong Hoi Sing Edison
Matthew Mosesohn
Brad Beam
Aleksandr Didenko