Added extra no-deploy options for v1.0.0

.travis.yml

@@ -22,7 +22,7 @@ env:
       MOLECULE_PLAYBOOK: playbook-docker.yml
 
     # Test using alternate port and using wireguard as the flannel backend
-    - MOLECULE_DISTRO: amazonlinux2
+    - MOLECULE_DISTRO: debian10
       MOLECULE_PLAYBOOK: playbook-docker-altport-wireguard.yml
 
     # Test disabling all deployments

README.md

@@ -22,11 +22,15 @@ This role has been tested on Ansible 2.6.0+ against the following Linux Distribu
 
 ## Disclaimer
 
-:warning: Not suitable for production use.
+:warning: May not be suitable for production use!
 
-Whilst Rancher Labs are awesome, k3s is a fairly new project and not yet a v1.0
-release so extreme caution and operational rigor is recommended before using
-this role for any serious development.
+Rancher Labs is awesome and has released k3s as v1.0.0, however at the time of
+creating this role I do not have a k3s cluster in production nor am I unlikely
+to ever have one. Please ensure you practice extreme caution and operational
+rigor before using this role for any serious workloads.
+
+If you have any problems please create a GitHub issue, I maintain this role in
+my spare time so I cannot promise a speedy fix delivery.
 
 ## Role Variables
 
@@ -52,6 +56,8 @@ consistency.
 | `k3s_cluster_domain`           | Cluster Domain.                                                          | cluster.local                  |
 | `k3s_no_traefik`               | Do not use Traefik                                                       | `false`                        |
 | `k3s_no_servicelb`             | Do not use ServiceLB, necessary for using something like MetalLB.        | `false`                        |
+| `k3s_no_local_storage`         | Do not use Local Storage                                                 | `false`                        |
+| `k3s_no_metrics_server`        | Do not deploy metrics server                                             | `false`                        |
 | `k3s_disable_scheduler`        | Disable Kubernetes default scheduler                                     | `false`                        |
 | `k3s_disable_cloud_controller` | Disable k3s default cloud controller manager.                            | `false`                        |
 | `k3s_disable_network_policy`   | Disable k3s default network policy controller.                           | `false`                        |
@@ -81,16 +87,18 @@ Please note that this may potentially break setting up agents.
 
 Below are variables that are set against specific hosts in your inventory.
 
-| Variable                    | Description                                            | Default Value |
-|-----------------------------|--------------------------------------------------------|---------------|
-| `k3s_control_node`          | Define the host as a control plane node, (True/False). | `false`       |
-| `k3s_node_name`             | Define the name of this node.                          | `$(hostname)` |
-| `k3s_flannel_interface`     | Define the flannel proxy interface for this node.      | _NULL_        |
-| `k3s_bind_address`          | Define the bind address for this node.                 | localhost     |
-| `k3s_node_ip_address`       | IP Address to advertise for this node.                 | _NULL_        |
-| `k3s_node_external_address` | External IP Address to advertise for this node.        | _NULL_        |
-| `k3s_node_labels`           | List of node labels.                                   | _NULL_        |
-| `k3s_node_taints`           | List of node taints.                                   | _NULL_        |
+| Variable                    | Description                                            | Default Value          |
+|-----------------------------|--------------------------------------------------------|------------------------|
+| `k3s_control_node`          | Define the host as a control plane node, (True/False). | `false`                |
+| `k3s_node_name`             | Define the name of this node.                          | `$(hostname)`          |
+| `k3s_node_id`               | Define the ID of this node.                            | _NULL_                 |
+| `k3s_flannel_interface`     | Define the flannel proxy interface for this node.      | _NULL_                 |
+| `k3s_bind_address`          | Define the bind address for this node.                 | localhost              |
+| `k3s_node_ip_address`       | IP Address to advertise for this node.                 | _NULL_                 |
+| `k3s_node_external_address` | External IP Address to advertise for this node.        | _NULL_                 |
+| `k3s_node_labels`           | List of node labels.                                   | _NULL_                 |
+| `k3s_node_taints`           | List of node taints.                                   | _NULL_                 |
+| `k3s_node_data_dir`         | Folder to hold state.                                  | `/var/lib/rancher/k3s` |
 
 #### Important note about `k3s_control_node`
 

defaults/main.yml

@@ -43,6 +43,12 @@ k3s_no_traefik: false
 # load balancer service.
 k3s_no_servicelb: false
 
+# Do not use local storage
+k3s_no_local_storage: false
+
+# Do not deploy metrics server
+k3s_no_metrics_server: false
+
 # Disable default k3s scheduler
 k3s_disable_scheduler: false
 

molecule/default/playbook-no-deploy.yml

@@ -4,10 +4,11 @@
   become: true
   vars:
     molecule_is_test: true
-    k3s_no_flannel: true
     k3s_no_coredns: true
     k3s_no_traefik: true
     k3s_no_servicelb: true
+    k3s_no_local_storage: true
+    k3s_no_metrics_server: true
     k3s_disable_scheduler: true
     k3s_disable_cloud_controller: true
     k3s_disable_network_policy: true

tasks/configure-k3s-cluster.yml

@@ -20,7 +20,6 @@
 - name: Ensure control node is delegated to for obtaining a token
   set_fact:
     k3s_control_delegate: "{{ k3s_control_delegate_raw.stdout.split(' @@@ ')[0] }}"
-  when: k3s_control_node_address is not defined
 
 - name: Ensure the control node address is registered in Ansible
   set_fact:

templates/k3s.service.j2

@@ -25,14 +25,18 @@ ExecStart={{ k3s_install_dir }}/k3s
         --disable-network-policy
     {% endif %}
     {% if k3s_no_flannel %}
-        --no-flannel
+        {% if k3s_release_version is version_compare('1.0.0', '<')  %}
+            --no-flannel
+        {% else %}
+            --flannel-backend none
+        {% endif %}
     {% endif %}
     {% if k3s_flannel_backend != "vxlan" and not k3s_no_flannel %}
         --flannel-backend {{ k3s_flannel_backend }}
     {% endif %}
     {% if k3s_no_coredns is defined or k3s_no_traefik is defined or k3s_no_servicelb is defined %}
     {% if k3s_no_coredns or k3s_no_traefik or k3s_no_servicelb %}
-        {{ ' --no-deploy coredns' if k3s_no_coredns else '' }}{{ ' --no-deploy servicelb' if k3s_no_servicelb else '' }}{{ ' --no-deploy traefik' if k3s_no_traefik else '' }}
+        {{ ' --no-deploy coredns' if k3s_no_coredns else '' }}{{ ' --no-deploy servicelb' if k3s_no_servicelb else '' }}{{ ' --no-deploy traefik' if k3s_no_traefik else '' }}{{ ' --no-deploy local-storage' if k3s_no_local_storage else '' }}{{ ' --no-deploy metrics-server' if k3s_no_metrics_server else '' }}
     {% endif %}
     {% endif %}
     {% if k3s_cluster_dns is defined and k3s_cluster_dns %}
@@ -46,6 +50,9 @@ ExecStart={{ k3s_install_dir }}/k3s
     --server https://{{ k3s_control_node_address }}:{{ k3s_https_port }}
     --token {{ k3s_control_token }}
 {% endif %}
+{% if k3s_node_data_dir is defined %}
+    --data-dir {{ k3s_node_data_dir }}
+{% endif %}
 {% if k3s_use_docker %}
     --docker
 {% endif %}
@@ -58,6 +65,9 @@ ExecStart={{ k3s_install_dir }}/k3s
 {% if k3s_node_name is defined %}
     --node-name {{ k3s_node_name }}
 {% endif %}
+{% if k3s_node_id is defined %}
+    --with-node-id {{ k3s_node_id }}
+{% endif %}
 {% if k3s_node_ip_address is defined %}
     --node-ip {{ k3s_node_ip_address }}
 {% endif %}