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ansible-role-k3s
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Allow control plane static pods 

Signed-off-by: Bᴇʀɴᴅ Sᴄʜᴏʀɢᴇʀs <me@bjw-s.dev>
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Bᴇʀɴᴅ Sᴄʜᴏʀɢᴇʀs 2021-05-26 09:43:07 +02:00
parent 50fa321e7e
commit 1bbba04230
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5 changed files with 47 additions and 16 deletions
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33
README.md
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@ -61,22 +61,23 @@ below.
Below are variables that are set against all of the play hosts for environment Below are variables that are set against all of the play hosts for environment
consistency. These are generally cluster-level configuration. consistency. These are generally cluster-level configuration.
| Variable | Description | Default Value | | Variable | Description | Default Value |
|----------------------------------|---------------------------------------------------------------------------------|--------------------------------| |-----------------------------------|---------------------------------------------------------------------------------|--------------------------------|
| `k3s_state` | State of k3s: installed, started, stopped, downloaded, uninstalled, validated. | installed | | `k3s_state` | State of k3s: installed, started, stopped, downloaded, uninstalled, validated. | installed |
| `k3s_release_version` | Use a specific version of k3s, eg. `v0.2.0`. Specify `false` for stable. | `false` | | `k3s_release_version` | Use a specific version of k3s, eg. `v0.2.0`. Specify `false` for stable. | `false` |
| `k3s_config_file` | Location of the k3s configuration file. | `/etc/rancher/k3s/config.yaml` | | `k3s_config_file` | Location of the k3s configuration file. | `/etc/rancher/k3s/config.yaml` |
| `k3s_build_cluster` | When multiple play hosts are available, attempt to cluster. Read notes below. | `true` | | `k3s_build_cluster` | When multiple play hosts are available, attempt to cluster. Read notes below. | `true` |
| `k3s_registration_address` | Fixed registration address for nodes. IP or FQDN. | NULL | | `k3s_registration_address` | Fixed registration address for nodes. IP or FQDN. | NULL |
| `k3s_github_url` | Set the GitHub URL to install k3s from. | https://github.com/k3s-io/k3s | | `k3s_github_url` | Set the GitHub URL to install k3s from. | https://github.com/k3s-io/k3s |
| `k3s_install_dir` | Installation directory for k3s. | `/usr/local/bin` | | `k3s_install_dir` | Installation directory for k3s. | `/usr/local/bin` |
| `k3s_install_hard_links` | Install using hard links rather than symbolic links. | `false` | | `k3s_install_hard_links` | Install using hard links rather than symbolic links. | `false` |
| `k3s_server_manifests_templates` | A list of Auto-Deploying Manifests Templates. | [] | | `k3s_server_manifests_templates` | A list of Auto-Deploying Manifests Templates. | [] |
| `k3s_use_experimental` | Allow the use of experimental features in k3s. | `false` | | `k3s_server_staticpods_templates` | A list of templates for installing static pods on the control plane. | [] |
| `k3s_use_unsupported_config` | Allow the use of unsupported configurations in k3s. | `false` | | `k3s_use_experimental` | Allow the use of experimental features in k3s. | `false` |
| `k3s_etcd_datastore` | Enable etcd embedded datastore (read notes below). | `false` | | `k3s_use_unsupported_config` | Allow the use of unsupported configurations in k3s. | `false` |
| `k3s_debug` | Enable debug logging on the k3s service. | `false` | | `k3s_etcd_datastore` | Enable etcd embedded datastore (read notes below). | `false` |
| `k3s_registries` | Registries configuration file content. | `{ mirrors: {}, configs:{} }` | | `k3s_debug` | Enable debug logging on the k3s service. | `false` |
| `k3s_registries` | Registries configuration file content. | `{ mirrors: {}, configs:{} }` |
### K3S Service Configuration ### K3S Service Configuration

3
defaults/main.yml
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@ -38,6 +38,9 @@ k3s_install_hard_links: false
# A list of templates used for preconfigure the cluster. # A list of templates used for preconfigure the cluster.
k3s_server_manifests_templates: [] k3s_server_manifests_templates: []
# A list of templates used for installing static pods on the control plane.
k3s_server_staticpods_templates: []
# Use experimental features in k3s? # Use experimental features in k3s?
k3s_use_experimental: false k3s_use_experimental: false

18
tasks/build/preconfigure-k3s-static-pods.yml Normal file
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@ -0,0 +1,18 @@
---
- name: Ensure that the staticpods directory exists
ansible.builtin.file:
state: directory
path: "{{ k3s_server_staticpods_dir }}"
mode: 0755
when: k3s_server_staticpods_templates | length > 0
become: "{{ k3s_become_for_directory_creation | ternary(true, false, k3s_become_for_all) }}"
# https://github.com/k3s-io/k3s/pull/1691
- name: Ensure static pod manifests are copied to controllers
ansible.builtin.template:
src: "{{ item }}"
dest: "{{ k3s_server_staticpods_dir }}/{{ item | basename | replace('.j2','') }}"
mode: 0644
loop: "{{ k3s_server_staticpods_templates }}"
become: "{{ k3s_become_for_directory_creation | ternary(true, false, k3s_become_for_all) }}"

5
tasks/state-installed.yml
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@ -39,6 +39,11 @@
- k3s_control_node - k3s_control_node
- k3s_server_manifests_templates | length > 0 - k3s_server_manifests_templates | length > 0
- import_tasks: build/preconfigure-k3s-static-pods.yml
when:
- k3s_control_node
- k3s_server_staticpods_templates | length > 0
- import_tasks: build/install-k3s.yml - import_tasks: build/install-k3s.yml
- name: Ensure containerd installation tasks are run - name: Ensure containerd installation tasks are run

4
vars/main.yml
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@ -84,6 +84,10 @@ k3s_token_location: "{{ k3s_config_dir }}/cluster-token"
# https://rancher.com/docs/k3s/latest/en/advanced/#auto-deploying-manifests # https://rancher.com/docs/k3s/latest/en/advanced/#auto-deploying-manifests
k3s_server_manifests_dir: "{{ k3s_data_dir }}/server/manifests" k3s_server_manifests_dir: "{{ k3s_data_dir }}/server/manifests"
# Path for static pods that are deployed on the control plane
# https://github.com/k3s-io/k3s/pull/1691
k3s_server_staticpods_dir: "{{ k3s_data_dir }}/agent/staticpods"
# Packages that we need to check are installed # Packages that we need to check are installed
k3s_check_packages: [] k3s_check_packages: []
# - name: dummy # - name: dummy