* bootstrap: rework role

* support being called from a non-root user
* run some commands in check mode
* unify spelling/task names

* bootstrap: fix wording of comments for check_mode: false

* bootstrap: remove setup-pipelining task

If a centos or rhel node is not configured with the extras repo installation of required packages (python-httplib2 in particular) will fail later on. (#4213)

* OCI subnet AD 2 is not required for CCM >= 0.7.0

Reorganize OCI provider to generate configuration, rather than pull

Add pull secret option to OCI cloud provider

* Updated oci example to document new parameters

Change-Id: I27d670803bea82a68d5eb0e49d4677f4afdce55f

* update k8s to 1.13.3

* update README as well

* Define FELIX_KUBENODEPORTRANGES when kube-proxy in ipvs mode

* ensure kube_apiserver_node_port_range is defined

This PR ensures that the e2fsprogs and xfsprogs packages are
installed on all Kubernetes nodes and that the packages are
the latest versions. It also ensures that the nodes can
create XFS filesystems when necessary, since not all distros
install xfsprogs by default.

e2fsprogs - ext2/ext3/ext4 file system utilities
xfsprogs - Utilities for managing the XFS filesystem

Avoid waiting forever for this task that should be very quick.

Fixes: #4148

Fixing an issue where trying to install docker-ce-18.09 on rhel7 nodes (or potentially centos 7) without an enabled extras repo the installation will fail because container-selinux >= 2.9 is required. The check for container-selinux upfront should obviate the need for adding an extras repo if the node is able to find it from another source. (#4161)

* use not deprecated ansible_play_hosts variable

* Using tests as filters is deprecated

* Fix deprecation warning about pkg list

* Calico: Ability to define the default IPPool CIDR (instead of kube_pods_subnet)

* Documentation for calico_pool_cidr (and calico_advertise_cluster_ips which has been forgotten...)

* Set cluster DNS correctly in case of nodelocal dns cache

* Pass in cluster_ip based on dns mode

* Disable nodelocaldns by default

* Fix syntax error

* Fix syntax issue

* Add nodelocadns ip to vars of node installation

* Change location of nodelocaldns_ip

* Try to remove newlines from jinja template

* Add debug for config file

* Move parameter logic outside of template

* Adapt templates after feedback

* Remove debugging

* Suport calico 3.4.0

Signed-off-by: wangxf1987 <xiaofeix.wang@gmail.com>

* Remove symlink + cni conflist template when 3.3.0+, handle Canal, addition of install-cni: sidecar(3.3.0) or initontainer(3.4.0), KUBECONFIG_FILEPATH, calico_cert_dir, advertise cluster ips

* scheduler.alpha.kubernetes.io/critical-pod deprecated since 1.12

Addressing the discussion started in #4064, this PR moves kubeadm and
hyperkube binaries to /usr/local/bin before running them on the master
nodes.

It is to address the case where local_release_dir points to /tmp
(kubespray default) and /tmp is mounted with noexec mode, preventing
any binaries to be run in that partition.

In role "node", we still move kubeadm to bin_dir only on the worker
nodes.

* Mount host /run/xtables.lock in nodelocaldns container

* fix typo in nodelocaldns daemonset manifest yml

* Add prometheus scrape annotation, updateStrategy and reduce termination grace period

* fix indentation

* actually fix it..

* Bump k8s-dns-node-cache tag to 1.15.1 (fixes https://github.com/kubernetes/dns/issues/282)

Supported by kubeadm v1.11

So that binary can be sourced from anywhere - not only github.

Looks like `epel_enabled` was not configured for the epel install in `bootstrap-centos.yml`. Also, there were no conditionals that would trigger bootstrap for RHEL.

The `docker-ce` 18.09.1 packaging missed an `After` dependency on containerd in the systemd service. Upstream PR: https://github.com/docker/docker-ce-packaging/pull/290

* Use external LB IP for external api endpoint

Use loadbalancer_apiserver.address instead of apiserver_loadbalancer_domain_name for kudadm init --apiserver-advertise-address argument

https://kubernetes.io/docs/reference/setup-tools/kubeadm/kubeadm-init/#options states apiserver-advertise-address needs to be a IPv4 or IPv6 address

* only use loadbalancer IP if it is defined

Helm v2.12.2 has fixes for a security vuln, and there have been several improvements since our last update.

* Generate external admin.conf with kubeadm

* Fix apiserver sans

Docker 18.09.1 is out and it includes some fixes that are quite critical for RHEL distros, details here: https://docs.docker.com/engine/release-notes/#18091

I found a potential use case where `writable` could be null and therfore
not treated like a boolean, so this adds an extra default statement to
avoid negating a non-boolean as boolean which would lead to undefined. refs #4020

Looks like the template is removing the trailing space between storage
class entries, and since CI only has one storage class we never hit this
issue. This change will prevent the yaml from printing on a single line
when multiple storage classes are defined.