Document how to use kubeadm patches

pull/11521/head
Max Gautier 2024-09-10 17:34:04 +02:00
parent 8e254ec1e8
commit c87097fc35
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5 changed files with 32 additions and 21 deletions

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@ -337,6 +337,13 @@ in the form of dicts of key-value pairs of configuration parameters that will be
* *kube_kubeadm_controller_extra_args*
* *kube_kubeadm_scheduler_extra_args*
### Kubeadm patches
When extra flags are not sufficient and there is a need to further customize kubernetes components,
[kubeadm patches](https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/control-plane-flags/#patches)
can be used.
You should use the [`kubeadm_patches` variable](../../roles/kubernetes/kubeadm_common/defaults/main.yml) for that purpose.
## App variables
* *helm_version* - Only supports v3.x. Existing v2 installs (with Tiller) will not be modified and need to be removed manually.

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@ -366,11 +366,25 @@ auto_renew_certificates: false
# First Monday of each month
# auto_renew_certificates_systemd_calendar: "Mon *-*-1,2,3,4,5,6,7 03:{{ groups['kube_control_plane'].index(inventory_hostname) }}0:00"
# kubeadm patches path
kubeadm_patches:
enabled: false
source_dir: "{{ inventory_dir }}/patches"
dest_dir: "{{ kube_config_dir }}/patches"
kubeadm_patches_dir: "{{ kube_config_dir }}/patches"
kubeadm_patches: []
# See https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/control-plane-flags/#patches
# Correspondance with this link
# patchtype = type
# target = target
# suffix -> managed automatically
# extension -> always "yaml"
# kubeadm_patches:
# - target: kube-apiserver|kube-controller-manager|kube-scheduler|etcd|kubeletconfiguration
# type: strategic(default)|json|merge
# patch:
# metadata:
# annotations:
# example.com/test: "true"
# labels:
# example.com/prod_level: "{{ prod_level }}"
# - ...
# Patches are applied in the order they are specified.
# Set to true to remove the role binding to anonymous users created by kubeadm
remove_anonymous_access: false

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@ -1,8 +0,0 @@
---
apiVersion: v1
kind: Pod
metadata:
name: kube-controller-manager
annotations:
prometheus.io/scrape: 'true'
prometheus.io/port: '10257'

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@ -1,8 +0,0 @@
---
apiVersion: v1
kind: Pod
metadata:
name: kube-scheduler
annotations:
prometheus.io/scrape: 'true'
prometheus.io/port: '10259'

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@ -1,6 +1,12 @@
---
kubeadm_patches_dir: "{{ kube_config_dir }}/patches"
kubeadm_patches: []
# See https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/control-plane-flags/#patches
# Correspondance with this link
# patchtype = type
# target = target
# suffix -> managed automatically
# extension -> always "yaml"
# kubeadm_patches:
# - target: kube-apiserver|kube-controller-manager|kube-scheduler|etcd|kubeletconfiguration
# type: strategic(default)|json|merge