TODO: fix this lousy process
- Check the component versions: https://docs.projectcalico.org/v2.6/releases/ (substitute v2.6 for latest version)
- Update calicoctl and calico-cni versions in build-calico-resource.sh
- Update calico-node image in config.yaml (used in templates/calico-node.service)
- Update calico-policy-controller image in config.yaml (used in templates/calico-policy-controller.yaml)
- Update calico_version in reactive/canal.py set_canal_version function