* fixes: #3387

* Change execution order for pip

* Remove spaces

to fix the follow problem in case quote is not used:

PLAY [k8s-cluster:etcd:calico-rr] **********************************************
ERROR! Syntax Error while loading YAML.
  expected <block end>, but found '<scalar>'

The error appears to have been in '/tmp/vagrant-ansible/inventory/group_vars/k8s-cluster.yml': line 59, column 39, but may
be elsewhere in the file depending on the exact syntax problem.

The offending line appears to be:

kube_oidc_ca_file: {{ kube_cert_dir }}/openid-ca.pem
                                      ^ here
We could be wrong, but this one looks like it might be an issue with
missing quotes.  Always quote template expression brackets when they
start a value. For instance:

    with_items:
      - {{ foo }}

Should be written as:

    with_items:
      - "{{ foo }}"

Ansible failed to complete successfully. Any error output should be
visible above. Please fix these errors and try again.

* Changes to assign pod priority to kube components.

* Removed the boolean flag pod_priority_assignment

* Created new priorityclass k8s-cluster-critical

* Created new priorityclass k8s-cluster-critical

* Fixed the trailing spaces

* Fixed the trailing spaces

* Added kube version check while creating Priority Class k8s-cluster-critical

* Moved k8s-cluster-critical.yml

* Moved k8s-cluster-critical.yml to kube_config_dir

Signed-off-by: Rui Cao <ruicao@alauda.io>

Add check that kube-master, kube-node and etcd groups are not empty.

Added download_validate_certs option

Fix/ubuntu xenial resolv conf

remove /var/lib/cni directory in reset playbook

Fix CI issue (Fedora task introduce new lookup plugin)

* Support for AWS cloud-config

* Update docs

* Fix version incompatibilities

* Do not use shorthand `default`

* Add new cloud config variable, roleArn

Remove some useless files

Add additional no proxy parameter for more customization

Support Fedora 28

Remove duplicate persistent_volumes_enabled element in k8s-cluster.yml

Remove EFK from Kubespray

Fix some typos

Signed-off-by: Rui Cao <ruicao@alauda.io>

Check `openstack_cacert` for empty string

Uses etcdv3 for calico 3 rr_v4 resources

Mount basic auth or token auth dirs to support it on kubeadm deployments