add k0s support (#1123)

* ignore idea

* Initial work on support for k0s

* *  Changed config param to bootstrap_distribution
*  Replaced democratic-csi with openebs
*  Added notes about system-upgrade-controller being ignored with k0s
*  Removed password for nodes

* *  Switched to single storage path for openebs
*  Removed democratic-csi helm repo
*  Added missing openebs helm repo
*  Fixed template formatting
*  Made bootstrap_private_github_repo hidden/undocumented
*  Updated flux cluster config to accommodate bootstrap_private_github_repo

* *  added the storageclass name to be declarative

* *  added newline
*  set chart wait false

* *  fixed spacing in K0sTasks
*  fixed openebs path
*  properly added openebs helm repo

* *  updated configure task to use venv
*  renamed bootstrap_kube_vip_addr to bootstrap_kubeapi_addr
*  renamed bootstrap_kube_vip_addr derived variables accordingly

* *  tweaked configure task cmd
*  started work on k0s-config.yaml template

* *  tweaked k0s task cmd
*  moved coredns under addons rather than optional
*  fixed typo in coredns task
*  normalized formatting in k0s-config
*  disabled telemetry in k0s-config
*  added renovate to k0s-config
*  removed tunnel and added routing mode in k0s-config cilium chart values
*  updated docs in config example
*  fixed issue with k0s-config controller role so it didn't default to worker+controller if more than one master

* *  fixed whitespace

* add k0sctl to brew tasks

* Update bootstrap/vars/config.sample.yaml

* Update bootstrap/vars/config.sample.yaml

* Update k0s-config.yaml.j2

* Update config.sample.yaml

* controllerManager and scheduler bind to `0.0.0.0` for metrics

* Update custom-cilium-helmchart.yaml.j2.j2

* Update helmvalues.yaml.j2

* Update bootstrap/tasks/addons/main.yaml

* first pass at readme updates

* update placement of k0sconfig options

* disable telemetry on k0sctl too

* disable k0s telemetry in env too

* update: jinja spacing in k0sconfig

Signed-off-by: Devin Buhl <devin@buhl.casa>

* fix: ensure bootstrap_local_storage_path is delete on nuke

Signed-off-by: Devin Buhl <devin@buhl.casa>

* fix: update renovate regex for k3s/k0s

Signed-off-by: Devin Buhl <devin@buhl.casa>

* fix: update nuke playbook and only include k3s task when k3s

Signed-off-by: Devin Buhl <devin@buhl.casa>

* fix: update nuke playbook and only include k3s task when k3s and include jinja comments

Signed-off-by: Devin Buhl <devin@buhl.casa>

---------

Signed-off-by: Devin Buhl <devin@buhl.casa>
Co-authored-by: Devin Buhl <onedr0p@users.noreply.github.com>
Co-authored-by: Devin Buhl <devin@buhl.casa>

bootstrap/templates/ansible/inventory/group_vars/kubernetes/main.yaml.j2

@@ -14,7 +14,7 @@ k3s_etcd_datastore: true
 {% else %}
 k3s_etcd_datastore: false
 {% endif %}
-k3s_registration_address: "{% raw %}{{ kube_vip_addr }}{% endraw %}"
+k3s_registration_address: "{% raw %}{{ kubeapi_addr }}{% endraw %}"
 # /var/lib/rancher/k3s/server/manifests
 k3s_server_manifests_templates:
   - custom-cilium-helmchart.yaml.j2

bootstrap/templates/ansible/inventory/group_vars/kubernetes/supplemental.yaml.j2

@@ -3,7 +3,7 @@
 timezone: "{{ bootstrap_timezone }}"
 github_username: "{{ bootstrap_github_username }}"
 coredns_addr: "{{ bootstrap_service_cidr.split(',')[0] | ansible.utils.nthhost(10) }}"
-kube_vip_addr: "{{ bootstrap_kube_vip_addr }}"
+kubeapi_addr: "{{ bootstrap_kubeapi_addr }}"
 cluster_cidr: "{{ bootstrap_cluster_cidr.split(',')[0] }}"
 service_cidr: "{{ bootstrap_service_cidr.split(',')[0] }}"
 node_cidr: "{{ bootstrap_node_cidr }}"

bootstrap/templates/ansible/inventory/group_vars/master/main.yaml.j2

@@ -11,7 +11,7 @@ k3s_server:
   node-ip: "{% raw %}{{ ansible_host }}{% endraw %}"
 {% endif %}
   tls-san:
-    - "{% raw %}{{ kube_vip_addr }}{% endraw %}"
+    - "{% raw %}{{ kubeapi_addr }}{% endraw %}"
   docker: false
   flannel-backend: "none"             # This needs to be in quotes
   disable: