* Introduce kubelet_config_extra_args and kubelet_node_config_extra_args to pass params to kubelet via YAML config

* kubelet_config_extra_args is not the alternative

When running with serial != 100%, like upgrade_cluster.yml, we need to apply this fixup each time
Problem was introduced in 05dc2b3a

Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com>

Resolves issue where kubectl cache of <v1.16 api schema
interferes with interacting with daemonsets and deployments.

Change-Id: I63b7046958f2008eb144b6da0004c598f945e0ae

Change-Id: I5e018dfaeffe314300b373aeb7ed5f59929cf4f9

* set varios node label via kubectl label command, not kubelet options

* remove node_labels from KUBELET_ARGS

* Fix python3-libselinux installation for RHEL/CentOS 8

In bootstrap-centos.yml we haven't gathered the facts,
so #5127 couldn't work

Minimum ansible version to run kubespray is 2.7.8,
so ansible_distribution_major_version is defined an there is no need to default it

Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com>

* Restart NetworkManager for RHEL/CentOS 8

network.service doesn't exist anymore
 # systemctl status network
 Unit network.service could not be found.

Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com>

* Add module_hotfixes=True to docker / containerd yum repo config

https://bugzilla.redhat.com/show_bug.cgi?id=1734081
https://bugzilla.redhat.com/show_bug.cgi?id=1756473


Without this setting you end up with the following error:
 # yum install docker-ce
 Failed to set locale, defaulting to C
 Last metadata expiration check: 0:03:21 ago on Thu Sep 26 22:00:05 2019.
 Error:
  Problem: package docker-ce-3:19.03.2-3.el7.x86_64 requires containerd.io >= 1.2.2-3, but none of the providers can be installed
   - cannot install the best candidate for the job
   - package containerd.io-1.2.2-3.3.el7.x86_64 is excluded
   - package containerd.io-1.2.2-3.el7.x86_64 is excluded
   - package containerd.io-1.2.4-3.1.el7.x86_64 is excluded
   - package containerd.io-1.2.5-3.1.el7.x86_64 is excluded
   - package containerd.io-1.2.6-3.3.el7.x86_64 is excluded
 (try to add '--skip-broken' to skip uninstallable packages or '--nobest' to use not only best candidate packages)

Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com>

Change-Id: I1634ba2d2d3337243ffcdea86750003a559f2576

Change-Id: I33d46c7e0c5374467e22c5a652b282d1703dea85

Change-Id: I3fff04f0211cd9c2e8235acaf51c3aa98abc8bb7

This fixes the scenario where masters are upgraded one at a time
and coredns gets improperly scaled back up to 2 replicas.

Change-Id: I7cc9283f40efcfd61b5813c89a5805c95d901567

Change-Id: I68a962a9dd28c83ef07eaeaf53eb98287f38bca9

Change-Id: I298496e55a6889c158b2085fcadeda5e679a873e

Change-Id: I54d706f7941b4b86c4c6cd45340295577155b884

Change-Id: If3e253a40782e03cde7fc4a91493517ae31fda17

Change-Id: I128b0f9c1acbb956d9a6c4e5510b45a36e296af7

Change-Id: If965cc6aa0daaca232dcf2ca0efd649aa097497f

Change-Id: I23116efefe8626d361d1904fc6fb8448f66cf3c5

check on all cluster node - kubelet_max_pods <= (2 ** (32 - kube_network_node_prefix | int)) - 2 (#5279)

Kubespray Pull Request #5084 (https://github.com/kubernetes-sigs/kubespray/pull/5084) caused more problems than it solved due to limitations with the synchronize module. See comments on Kubespray Issues #5059 (https://github.com/kubernetes-sigs/kubespray/issues/5059) and #5116 (https://github.com/kubernetes-sigs/kubespray/issues/5116). Details from Ansible documentation: "Currently, synchronize is limited to elevating permissions via passwordless sudo. This is because rsync itself is connecting to the remote machine and rsync doesn’t give us a way to pass sudo credentials in. ... Currently there are only a few connection types which support synchronize (ssh, paramiko, local, and docker) because a sync strategy has been determined for those connection types. Note that the connection for these must not need a password as rsync itself is making the connection and rsync does not provide us a way to pass a password to the connection. ..." Thus, reverting Pull Request #5084.

* Add support for restart handlers for control plane on crio/containerd

Change-Id: I8343cc4e9df7f55b732628ed01cc6e7ea5dcee85

* Update main.yml

Signed-off-by: Robin Elfrink <robin.elfrink@eu.equinix.com>

When using cluster.yml or scale.yml to add/scale nodes in the existing
k8s cluster, the `kubeadm init` wouldn't run. As a result, kube-proxy
wouldn't be created, and therefore the kube-proxy deletion task would
fail, e.g. in the case where kube-router is used and "kube_proxy_remove"
is set to true. As a workaround, add ignore_errors to the kube-proxy
deletion task.

Change-Id: Ic9425bf90552d7e3d42b02409af9773d99376384

* Switch to Kubernetes v1.16.0

Change-Id: I5d6a9528b2d443750fc5e031aff15ad3ffead158

* Fix download localhost cached file path

Change-Id: I65e79b70e3d1b37265ebc60f41b460cf4b0a0d47

* fix kubeadm etcd for v1.16

Change-Id: I6888a00fd48b530a38b0b31c4095492476af42d2

* disable tf packet jobs

Change-Id: I075c4666547fdea4c50ec04864f38e2cfaa79154

* Disable contiv packet jobs. Fix kube-router

Change-Id: I3170e8789e60711d4cee8faf65f2094480b79b8d

* bump sonobuoy version

Change-Id: Ib946905629c7c53ed88f08fb2f41c454457a0097

The script is not usable unless you are in the '.vagrant/provisioners/ansible/inventory/artifacts' folder.
This update makes this usable from anywhere.

When using IPVS, kube_proxy_strict_arp = true is required
https://github.com/danderson/metallb/issues/153#issuecomment-518651132

Add kube_proxy_strict_arp to inventory/sample