* Refactor control plane upgrades with reconfiguration support
Adds revised support for:
- The previously removed `--config` argument for `kubeadm upgrade apply`
- Changes to `ClusterConfiguration` as part of the `upgrade-cluster.yml` playbook lifecycle
- kubeadm-config `v1beta4` `UpgradeConfiguration` for the `kubeadm upgrade apply` command: [UpgradeConfiguration v1beta4](https://kubernetes.io/docs/reference/config-api/kubeadm-config.v1beta4/#kubeadm-k8s-io-v1beta4-UpgradeConfiguration).
* Add kubeadm upgrade node support
Per discussion:
- Use `kubeadm upgrade node` on secondary control plane upgrades
- Add support for UpgradeConfiguration.node in kubeadm-config.v1beta4
- Remove redundant `allowRCUpgrades` config
- Revert from `block` for first and secondary control plane back to unblocked tasks since they no longer share much code and it's more readable this way
* Add kubelet and kube-proxy reconfiguration to upgrades
* Fix task to use `kubeadm init phase etcd local`
* Rebase with changes from "Adapt checksums and versions to new hashes updater" PR
* Add `imagePullPolicy` and `imagePullSerial` to kubeadm-config v1beta4 `InitConfiguration.nodeRegistration`
This adds a new flag with default `kubeadm_config_validate_enabled: true` to use when debugging features and enhancements affected by the `kubeadm config validate command`.
This new flag should be set to `false` only for development and testing scenarios where validation is expected to fail (pre-release Kubernetes versions, etc).
While working with development and test versions of Kubernetes and Kubespray, I found this option very useful.
* kubeadm: do not ignore preflight errors blindly
The "ignoring all errors" seems to date back to the inception of the
kubeadm support (it was --skip-preflight-check before).
This can mask real errors and prevent users from seeing them.
Do not ignore any errors by default and make the set of ignored errors
configurable.
* download/kubeadm: remove redundant task
The mode is already set by the previous `copy` task.
* Validate kubeadm configs
This should help to fail early when we have invalid kubeadm configs (from
a kubespray bug or a misconfiguration).
* kubeadm-upgrade: remove unnecessary bool cast
* Convert kubeadm join discovery timeout to v1beta4 config
* CI: Ignore kubeadm:Mem errors on some setup.
I added the kubeadm_config_api_version variable in the previous commit,
and remove kubeadm api version condition.
Signed-off-by: ChengHao Yang <17496418+tico88612@users.noreply.github.com>
Testing for group membership with group names makes Kubespray more
tolerant towards the structure of the inventory.
Where 'inventory_hostname in groups["some_group"] would fail if
"some_group" is not defined, '"some_group" in group_names' would not.
kubernetes/control-plane and kubernetes/kubeadm roles both push kubeadm
patches in the same way.
Extract that code and make it a dependency of both.
This is safe because it's only configuration for kubeadm, which only
takes effect when kubeadm is run.
* feat: add user facing variable with default
* feat: remove rolebinding to anonymous users after init and upgrade
* feat: use file discovery for secondary control plane nodes
* feat: use file discovery for nodes
* fix: do not fail if rolebinding does not exist
* docs: add warning about kube_api_anonymous_auth
* style: improve readability of delegate_to parameter
* refactor: rename discovery kubeconfig file
* test: enable new variable in hardening and upgrade test cases
* docs: add option to config parameters
* test: multiple instances and upgrade
* Migrate node-role.kubernetes.io/master to node-role.kubernetes.io/control-plane
* Migrate node-role.kubernetes.io/master to node-role.kubernetes.io/control-plane
* Migrate node-role.kubernetes.io/master to node-role.kubernetes.io/control-plane
* Fix inconsistent handling of admission plugin list
* Adjust hardening doc with the normalized admission plugin list
* Add pre-check for admission plugins format change
* Ignore checking admission plugins value when variable is not defined
* Support kubeadm patches in v1beta3
* Update kubeadm patches sample files in inventory
* Fix pre-commit syntax
* Set kubeadm_patches enabled to false in sample inventory
* extra admission controls now don't have a version in their file names
eventratelimit.v1beta2.yaml.j2 -> eventratelimit.yaml.j2
* cri_socket variable includes the unix:// prefix to be conformat with
upstream
* Improve control plane scale flow (#13)
* Added version 1.20.10 of K8s
* Setting first_kube_control_plane to a existing one
* Setting first_kube_control_plane to a existing one
* change first_kube_master for first_kube_control_plane
* Ansible-lint changes
The path of kubeconfig should be configurable, and its default value
is /etc/kubernetes/admin.conf. Most paths of the file are configurable
but some were not. This make those configurable.
* Ansible: move to Ansible 3.4.0 which uses ansible-base 2.10.10
* Docs: add a note about ansible upgrade post 2.9.x
* CI: ensure ansible is removed before ansible 3.x is installed to avoid pip failures
* Ansible: use newer ansible-lint
* Fix ansible-lint 5.0.11 found issues
* syntax issues
* risky-file-permissions
* var-naming
* role-name
* molecule tests
* Mitogen: use 0.3.0rc1 which adds support for ansible 2.10+
* Pin ansible-base to 2.10.11 to get package fix on RHEL8
* 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
While at it remove force_certificate_regeneration
This boolean only forced the renewal of the apiserver certs
Either manually use k8s-certs-renew.sh or set auto_renew_certificates
Signed-off-by: Etienne Champetier <e.champetier@ateme.com>
The important action in kubeadm-version.yml is the templating of the configuration,
not finding / setting the version
Signed-off-by: Etienne Champetier <e.champetier@ateme.com>
