* WIP: sometimes,we not run etcd

* fix ansible lint

* like calico(kdd) cni, no need run etcd

Signed-off-by: Mac Chaffee <me@macchaffee.com>

* Add kubeadm option to etcd_deployment_type to replace the etcd_kubeadm_enabled variable

Signed-off-by: necatican <necaticanyildirim@gmail.com>

* Add etcd kubeadm deployment documentation

Signed-off-by: necatican <necaticanyildirim@gmail.com>

* Refactor warning for the deprecated 'etcd_kubeadm_enabled' variable

Signed-off-by: necatican <necaticanyildirim@gmail.com>

If the etcd cluster is separate and the etcd_deployment_type is "host",
there is no need for a container engine on the etcd nodes

Do not rely on a 'default(true)' filter, but define a proper default in
kubespray-defaults depending on etcd deployment method and if internal
or external etcd is used

* rename ansible groups to use _ instead of -

k8s-cluster -> k8s_cluster
k8s-node -> k8s_node
calico-rr -> calico_rr
no-floating -> no_floating

Note: kube-node,k8s-cluster groups in upgrade CI
      need clean-up after v2.16 is tagged

* ensure old groups are mapped to the new ones

This replaces kube-master with kube_control_plane because of [1]:

  The Kubernetes project is moving away from wording that is
  considered offensive. A new working group WG Naming was created
  to track this work, and the word "master" was declared as offensive.
  A proposal was formalized for replacing the word "master" with
  "control plane". This means it should be removed from source code,
  documentation, and user-facing configuration from Kubernetes and
  its sub-projects.

NOTE: The reason why this changes it to kube_control_plane not
      kube-control-plane is for valid group names on ansible.

[1]: https://github.com/kubernetes/enhancements/blob/master/keps/sig-cluster-lifecycle/kubeadm/2067-rename-master-label-taint/README.md#motivation

kubeadm never rotates sa.key/sa.pub, so there is no need to delete tokens/restart pods

Signed-off-by: Etienne Champetier <e.champetier@ateme.com>

Since a790935d all proxy users
should be properly configured

Now when you have *_PROXY vars in your environment it can leads to failure
if NO_PROXY is not correct, or to persistent configuration changes
as seen with kubeadm in 1c5391dd

Instead of playing constant whack-a-bug, inject empty *_PROXY vars everywhere
at the play level, and override at the task level when needed

Signed-off-by: Etienne Champetier <e.champetier@ateme.com>

This is a small step to replace "master" with "control-plane" in
Kubespray project.

no_proxy is a pain to get right, and having proxy variables present causes issues
(k8s components get proxy configuration after upgrade, see #7100)

It's better to only configure what require proxy:
- the runtime (containerd/docker/crio)
- the package manager + apt_key
- the download tasks

Tested with the following clusters
- 4 CentOS 8 nodes
- 1 Ubuntu 20.04 node

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

tags are not inherited for include_role therefore the change
from include to import

Co-authored-by: Hans Feldt <hafe@users.noreply.github.com>

* add strategy mitogen_linear when installed mitogen

* add small docs

Rename playbook file

The raw action executes as a regular Mitogen connection, which requires Python on the target, so add strategy: linear to bootstrap-os role playbook.

* add mitogen to  CI test
fix typo

* enable mitogen test on deploy-part1 tests
change version from master to release
download tar.gz archive

* run all CI tests with mitogen

* disable mitogen with upgrade CI tests

* enable mitogen on CI tests via env vars

* disable mitogen on CI test by default, enable on some different OS

* disable mitogen CI test on centos8
(get error  /usr/bin/python: No such file or directory)

* bump minimal ansible version to 2.8.0

* check ansible version in separate playbook

* Gather just the necessary facts

* Move fact gathering to separate playbook.

* Fix chicken and egg problem with proxy_env not defined on the first envinronment usage.

* Disable fact gathering for the first proxy_env evaluation.

* Move proxy_env var set up from the role defaults to the root playbooks as fact.

* External OpenStack Cloud Controller Manager implementation

* Adding controller image tag

* Minor fixes

* Restructuring the external cloud controller to work with KubeADM

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

* remove node_labels from KUBELET_ARGS

* Refactor calico-rr to run in k8s cluster with taint

Change-Id: I75a3169ff5b36ce8302fc7ef1c32d3eb697b5afa

* add preinstall checks

* rework calico/rr role

Change-Id: I2f0a7e6cb77cf91ad4a615923680760d2e5d9ca8

* add empty calico-rr group

Change-Id: I006c0a60db9b72d02245bf8fdfabcf982144a5ad

Ansible will gather facts on the preinstall/download role
automatically at the start of that play.

* Enable kubeadm etcd mode

Uses cert commands from kubeadm experimental control plane to
enable non-master nodes to obtain etcd certs.

Related story: PROD-29434

Change-Id: Idafa1d223e5c6ceadf819b6f9c06adf4c4f74178

* Add validation checks and exclude calico kdd mode

Change-Id: Ic234f5e71261d33191376e70d438f9f6d35f358c

* Move etcd mode test to ubuntu flannel HA job

Change-Id: I9af6fd80a1bbb1692ab10d6da095eb368f6bc732

* rename etcd_mode to etcd_kubeadm_enabled

Change-Id: Ib196d6c8a52f48cae370b026f7687ff9ca69c172

* Run dns_late preinstall tasks on all k8s nodes

Related issue: #4656

Change-Id: I63f8559ef1a497b7580ab084561e6603fe647834

* Fix ansible-lint

Change-Id: Ia5b33fa63dbc36d8c3e9557ef3f2ea02af2325a5

* Fix recover_control_plane lint issues

Change-Id: I16643a3193c11b6ba704e9698812cac7e4fd19a8

* Add README to bootstrap-os role

* Rework bootstrap-os once more

* Document workarounds for bugs/deficiencies in Ansible modules
* Unify and document role variables
* Remove installation of additional packages and repositories
* Merge Ubuntu and Debian tasks
* Remove pipelining setting from default playbooks
* Fix OpenSUSE not running its required tasks

Both kubedns and dnsmasq modes are long not maintained.
We should run dns_late steps at the end because sshd
makes DNS lookups during Ansible run and has 2s timeouts
for each failed lookup trying to connect to coredns before
it is ready.

* fact gathering should run only once per node
* eliminate ansible version check, it is at the beginning of each
  playbook

- Creates and defaults an ansible variable for every configuration option in the `kubeproxy.config.k8s.io/v1alpha1` type spec
  - Fixes vars that were orphaned by removing non-kubeadm
  - Fixes previously harcoded kubeadm values
- Introduces a `main` directory for role default files per component (requires ansible 2.6.0+)
  - Split out just `kube-proxy.yml` in this first effort
- Removes the kube-proxy server field patch task

We should continue to pull out other components from `main.yml` into their own defaults files as I did here for `defaults/main/kube-proxy.yml`. I hope for and will need others to join me in this refactoring across the project until each component config template has a matching role defaults file, with shared defaults in `kubespray-defaults` or `downloads`

* Remove non-kubeadm deployment

* More cleanup

* More cleanup

* More cleanup

* More cleanup

* Fix gitlab

* Try stop gce first before absent to make the delete process work

* More cleanup

* Fix bug with checking if kubeadm has already run

* Fix bug with checking if kubeadm has already run

* More fixes

* Fix test

* fix

* Fix gitlab checkout untill kubespray 2.8 is on quay

* Fixed

* Add upgrade path from non-kubeadm to kubeadm. Revert ssl path

* Readd secret checking

* Do gitlab checks from v2.7.0 test upgrade path to 2.8.0

* fix typo

* Fix CI jobs to kubeadm again. Fix broken hyperkube path

* Fix gitlab

* Fix rotate tokens

* More fixes

* More fixes

* Fix tokens

fact gathering causes errors when using become (-b) and there is no sudo access
locally

This feature was removed by PR#3061. But change flag manage_docker to deploy_container_engine.

* Tag win_nodes roles with master

* Dummy change

* Remove Vault

* Remove reference to 'kargo' in the doc

* change check order

When using resolvconf_mode host_resolvconf, there is an early DNS
config stage where Kubernetes cluster DNS is not injected for host
DNS intially. Later, the cluster DNS is enabled, but we do not
need to run every task from the kubernetes/preinstall role.