cleanup

molecule/rocky9/tests/test_default.py

@@ -16,13 +16,13 @@ def test_k3s_running_and_enabled(host):
 
 def test_k3s_node_ready(host):
     jsonpth = '{range .items[*]}{@.metadata.name}:{range @.status.conditions[?(@.type=="Ready")]}{@.type}={@.status};{end}{end}'  # noqa
-    nodes = host.run(f"kubectl get nodes -o jsonpath='{jsonpth}'").stdout
+    nodes = host.run(f"k3s kubectl get nodes -o jsonpath='{jsonpth}'").stdout
 
     assert "rocky9-k3s:Ready=True;" in nodes
 
 
 def test_k3s_cluster_ready(host):
-    cluster = host.run("kubectl get --raw='/readyz'").stdout
+    cluster = host.run("k3s kubectl get --raw='/readyz'").stdout
 
     assert cluster == "ok"
 

tasks/init.yml

@@ -20,7 +20,7 @@
             -p RestartSec=2
             -p Restart=on-failure
             --unit=k3s-init
-            k3s server {{ __k3s_server_init_args }}
+            {{ __k3s_binary }} server {{ __k3s_server_init_args }}
         creates: "{{ __k3s_service_file }}"
       args:
         warn: False
@@ -31,7 +31,7 @@
 - block:
     - name: Verify that all nodes actually joined
       command: >-
-        k3s kubectl get nodes
+        {{ __k3s_binary }} kubectl get nodes
           -l "node-role.kubernetes.io/master=true"
           -o=jsonpath="{.items[*].metadata.name}"
       register: __k3s_init_nodes

tasks/prepare.yml

@@ -83,17 +83,5 @@
       when:
         - ansible_hostname == hostvars[k3s_server_nodes[0]]['ansible_hostname']
         - not __k3s_installed.stat.exists
-
-    - name: Create kubectl symlink
-      file:
-        src: /usr/local/bin/k3s
-        dest: /usr/local/bin/kubectl
-        state: link
-
-    - name: Create crictl symlink
-      file:
-        src: /usr/local/bin/k3s
-        dest: /usr/local/bin/crictl
-        state: link
   become: True
   become_user: root

tasks/reset.yml

@@ -1,58 +1,63 @@
 ---
-- name: Disable services
-  service:
-    name: "{{ item }}"
-    state: stopped
-    enabled: False
-  failed_when: False
-  loop:
-    - k3s
-    - k3s-init
+- block:
+    - name: Disable services
+      service:
+        name: "{{ item }}"
+        state: stopped
+        enabled: False
+      failed_when: False
+      loop:
+        - k3s
+        - k3s-init
+        - kubepods
 
-- name: Kill containerd-shim-runc
-  register: __k3s_pkill_containerd_shim_runc
-  command: pkill -9 -f "k3s/data/[^/]+/bin/containerd-shim-runc"
-  changed_when: __k3s_pkill_containerd_shim_runc.rc == 0
-  failed_when: False
+    - name: Kill containerd-shim-runc
+      register: __k3s_pkill_containerd_shim_runc
+      command: pkill -9 -f "k3s/data/[^/]+/bin/containerd-shim-runc"
+      changed_when: __k3s_pkill_containerd_shim_runc.rc == 0
+      failed_when: False
 
-- name: Get the list of mounted filesystems
-  shell: set -o pipefail && cat /proc/mounts | awk '{ print $2}' | grep -E "^{{ item }}"
-  loop:
-    - /run/k3s
-    - /var/lib/kubelet
-    - /run/netns
-    - /var/lib/kubelet/pods
-    - /var/lib/kubelet/plugins
-    - /run/netns/cni-
-    - "{{ __k3s_data_dir }}"
-  register: __k3s_mounted_fs
-  args:
-    executable: /bin/bash
-  failed_when: False
-  changed_when: False
+    - name: Get the list of mounted filesystems
+      shell: set -o pipefail && cat /proc/mounts | awk '{ print $2}' | grep -E "^{{ item }}"
+      loop:
+        - /run/k3s
+        - /var/lib/kubelet
+        - /run/netns
+        - /var/lib/kubelet/pods
+        - /var/lib/kubelet/plugins
+        - /run/netns/cni-
+        - "{{ __k3s_data_dir }}"
+      register: __k3s_mounted_fs
+      args:
+        executable: /bin/bash
+      failed_when: False
+      changed_when: False
 
-- name: Umount filesystem
-  mount:
-    path: "{{ item }}"
-    state: unmounted
-  loop: "{{ __k3s_mounted_fs.results | map(attribute='stdout_lines') | list | flatten | reverse }}"
+    - name: Umount filesystem
+      mount:
+        path: "{{ item }}"
+        state: unmounted
+      loop: "{{ __k3s_mounted_fs.results | map(attribute='stdout_lines') | list | flatten | reverse }}"
 
-- name: Remove service files, binaries and data
-  file:
-    name: "{{ item }}"
-    state: absent
-  loop:
-    - /usr/local/bin/k3s
-    - "{{ __k3s_service_file }}"
-    - "{{ __k3s_config_dir }}"
-    - "{{ __k3s_data_dir }}"
-    - "{{ __k3s_log_dir }}"
-    - /etc/cni
-    - /run/k3s
-    - /run/flannel
-    - /var/lib/kubelet
-    - /var/lib/cni/
+    - name: Remove service files, binaries and data
+      file:
+        name: "{{ item }}"
+        state: absent
+      loop:
+        - /usr/local/bin/k3s
+        - "{{ __k3s_service_file }}"
+        - "{{ __k3s_config_dir }}"
+        - "{{ __k3s_data_dir }}"
+        - "{{ __k3s_log_dir }}"
+        - /etc/cni
+        - /run/k3s
+        - /run/flannel
+        - /var/lib/kubelet
+        - /var/lib/cni
+        - /var/run/netns
 
-- name: Reload systemd daemon
-  systemd:
-    daemon_reload: True
+    - name: Reload systemd daemon
+      systemd:
+        daemon_reload: True
+  become: True
+  become_user: root

tasks/setup.yml

@@ -19,46 +19,16 @@
         enabled: True
         state: started
 
-    - name: Wait for node-token
-      wait_for:
-        path: "{{ __k3s_data_dir }}/server/node-token"
-
-    - name: Read node-token from server
-      slurp:
-        path: "{{ __k3s_data_dir }}/server/node-token"
-      register: __k3s_node_token
-
-    - name: Store server node-token
-      set_fact:
-        token: "{{ __k3s_node_token.content | b64decode | regex_replace('\n', '') }}"
-
     - name: Set server address
       command: >-
-        k3s kubectl config set-cluster default
+        {{ __k3s_binary }} kubectl config set-cluster default
           --server=https://{{ __k3s_server_ip }}:6443
           --kubeconfig {{ __k3s_config_dir }}/k3s.yaml
       changed_when: False
 
-    - name: Create directory .kube
-      file:
-        path: "{{ ansible_user_dir }}/.kube"
-        state: directory
-        owner: "{{ ansible_user }}"
-        group: "{{ ansible_user }}"
-        mode: 0740
-
-    - name: Copy kube config to user home
-      copy:
-        src: "{{ __k3s_config_dir }}/k3s.yaml"
-        dest: "{{ ansible_user_dir }}/.kube/config"
-        remote_src: True
-        owner: "{{ ansible_user }}"
-        group: "{{ ansible_user }}"
-        mode: "preserve"
-
     - name: Wait for initial setup
       command: >-
-        kubectl get deployment coredns
+        {{ __k3s_binary }} kubectl get deployment coredns
           -n kube-system
           -o go-template={% raw %}'{{ .status.availableReplicas }}'{% endraw %}
       register: __k3s_init_setup
@@ -66,6 +36,7 @@
       retries: 6
       delay: 10
       changed_when: False
+      when: k3s_server | bool
 
     - name: Remove auto-deploying manifests
       file:
@@ -74,5 +45,6 @@
       loop: "{{ k3s_server_manifests_urls + k3s_server_manifests_templates }}"
       loop_control:
         label: "{{ __k3s_manifests_dir }}/{{ item.dest | default(item.url) | default(item) | basename | replace('.j2', '') }}"
+      when: ansible_hostname == hostvars[k3s_server_nodes[0]]['ansible_hostname']
   become: True
   become_user: root

templates/etc/systemd/system/k3s.service.j2

@@ -9,7 +9,7 @@ After=network-online.target
 Type=notify
 ExecStartPre=-/sbin/modprobe br_netfilter
 ExecStartPre=-/sbin/modprobe overlay
-ExecStart=/usr/local/bin/k3s {{ "server" if k3s_server | bool else "agent" }} --config {{ __k3s_config_dir }}/config.yaml
+ExecStart={{ __k3s_binary }} {{ "server" if k3s_server | bool else "agent" }} --config {{ __k3s_config_dir }}/config.yaml
 KillMode=process
 Delegate=yes
 LimitNOFILE=1048576

vars/main.yml

@@ -1,4 +1,5 @@
 ---
+__k3s_binary: /usr/local/bin/k3s
 __k3s_server_ip: "{{ hostvars[k3s_server_nodes[0]].k3s_node_ip }}"
 
 __k3s_server_init_args: >-