* CNI plugins: bump version 0.8.1

* cni plugins : update checksums

* cni : update readme

* Require minimum version of Kubernetes

* Remove checksums for kubernetes version 1.12

* Add kube_version to precheck output and add min required version to README

* Fix merge

* Fix defaults

* Fix typo in precheck

* File and container image downloads are now cached localy, so that repeated vagrant up/down runs do not trigger downloading of those files. This is especially useful on laptops with kubernetes runnig locally on vm's. The total size of the cache, after an ansible run, is currently around 800MB, so bandwidth (=time) savings can be quite significant.

* When download_run_once is false, the default is still not to cache, but setting download_force_cache will still enable caching.

* The local cache location can be set with download_cache_dir and defaults to /tmp/kubernetes_cache

* A local docker instance is no longer required to cache docker images; Images are cached to file. A local docker instance is still required, though, if you wish to download images on localhost.

* Fixed a FIXME, wher the argument was that delegate_to doesn't play nice with omit. That is a correct observation and the fix is to use default(inventory_host) instead of default(omit). See ansible/ansible#26009

* Removed "Register docker images info" task from download_container and set_docker_image_facts because it was faulty and unused.

* Removed redundant when:download.{container,enabled,run_once} conditions from {sync,download}_container.yml

* All features of commit d6fd0d2a by Timoses <timosesu@gmail.com>, merged May 1st 2019, are included in this patch. Not all code was included verbatim, but each feature of that commit was checked to be working in this patch. One notable change: The actual downloading of the kubeadm images was moved to {download,sync)_container, to enable caching.

Note 1: I considered splitting this patch, but most changes that are not directly related to caching, are a pleasant by-product of implementing the caching code, so splitting would be impractical.

Note 2: I have my doubts about the usefulness of the upload, download and upgrade tags in the download role. Must they remain or can they be removed? If anybody knows, then please speak up.

Change-Id: I02864011bf5fda5dbd35c7513c73875769036f87

Change-Id: Ia9a41e7b1cfcb1e6acb2dbae6eecc541dce25a74

* Add support for IPv6 for Openstack in terraform.py via metadata

* document terraform.py metadata variables for openstack

This PR adds missing checksums for kubeadm and hyperkube and changes
default version to 1.14.3

Signed-off-by: Sergey Nuzhdin <ipaq.lw@gmail.com>

Merge two tolerations.  because the latest tolerations will cover the first tolerations.

Signed-off-by: Daniel Holbach <daniel@weave.works>

* Make local volume provisioner dir mode a variable

I need to change this for Nagios monitoring. Others may
need to as well. Had to close previous commits, sorry for
the spam.

* Make local volume provisioner dir mode a variable

I need to change this for Nagios monitoring. Others may
need to as well. Had to close previous commits, sorry for
the spam.

Task "kube-roter | Set cni directory permissions"
sets ownership of /opt/cni/bin to "kube"

Task "kube-router | Copy cni plugins"
copies the binaries from the archive setting the ownership
back to "root"

Fix "kube-roter" typo

Signed-off-by: Alberto Murillo <albertomurillosilva@gmail.com>

* kube config dir for current/ansible become user

* remove extra /

* fix default value

* use dpkg_selections module to hold docker-ce on Debian family hosts

* removed debian_docker.j2 template as it is no longer required

This is a fix for #4124

* Add support for arm images for hyperkube, kubeadm and cni_binary

* Add dummy etcd checksum for arm

This commit adds dummy etcd checksum for arm to avoid "no attribute" error
during setup.

* Add etcd host assert check

* Add 1.13.4 checksums of kubeadm and hyperkube for arm

* Update checksums of kubeadm and hyperkube for arm

* Add dummy checksums for calicoctl_binary_checksums dict

* disable gather_facts because it causes tests to fail

* Remove architecture check for etcd, due to unable to run tests

Long option --become was used in the example but in the comment describing it the short option -b was used.
Use same option in description and example to avoid confusion.