Add etcd role dependency on kube user to avoid etcd role failure when running scale.yml with a fresh node. (#3240) (#4479)

Use host_architecture variable.

We don't need to support upgrades from 2 year old installs,
just from the last major version.

Also changed most retried tasks to 1s delay instead of longer.

Circumvented one false positive from ansible-lint
Moved a block of jinja magic into its own variable

* Remove hard dependence on facts for all nodes

* Update main.yaml

* Update main.yaml

Signed-off-by: Ganesh Maharaj Mahalingam <ganesh.mahalingam@intel.com>

Setting host_architecture to allow etcd upgrade working through: ansible-playbook -b -i inventory/sample/hosts.ini cluster.yml --tags=etcd (on other case host_architecture is missing)

Added a loop_control label to a few tasks that flood our logs.

* Remove Vault

* Remove reference to 'kargo' in the doc

* change check order

Signed-off-by: mooncake <xcoder@tenxcloud.com>

Standalone etcd nodes do not generate node-$hostname certs and do
not need this serial calculated.

* do it like in kubernetes/secrets

* fix indentation

* processed comments

* missed one, sorry

* trailing space fix

Replace shell with command in order to allow the task to fail when openssl x509 does return zero (#3516)

* Fix ansible syntax to avoid ansible warnings (again)

* warn: false on tar -cfz

* wrong placement of warn:false

* Ability to specify ssl certificate duration and ssl key size - etcd/secrets

* Ability to specify ssl certificate duration and ssl key size - helm/contiv + fix contiv missing copy certs generation script

ensure there is pin priority for docker package to avoid upgrade of docker to incompatible version

remove empty when line

ensure there is pin priority for docker package to avoid upgrade of docker to incompatible version

force kubeadm upgrade due to failure without --force flag

ensure there is pin priority for docker package to avoid upgrade of docker to incompatible version

added nodeSelector to have compatibility with hybrid cluster with win nodes, also fix for download with missing container type

fixes in syntax and LF for newline in files

fix on yamllint check

ensure there is pin priority for docker package to avoid upgrade of docker to incompatible version

some cleanup for innecesary lines

remove conditions for nodeselector

Trigger reboot handler when version upgrade during update script

apiserver cert should be created only once

* Add tags for cert serial tasks

This will help facilitate tag-based deployment of specific components.

* fixup kubernetes node