fixup! wip: r/k8s-worker: Use K8s API to create join token

roles/k8s-worker/tasks/main.yml

@@ -67,9 +67,17 @@
         apiVersion: v1
         kind: Config
         clusters:
-        - cluster: '{{ kubeconfig.clusters[0].cluster }}'
+        - name: kubernetes
+          cluster: '{{ kubeconfig.clusters[0].cluster }}'
+        contexts:
+        - name: kubeadm
+          context:
+            cluster: kubernetes
+            user: kubeadm
+        current-context: kubeadm
         users:
-        - token: '{{ bootstrap_token_id }}.{{ bootstrap_token_secret }}'
+        - name: kubeadm
+          token: '{{ bootstrap_token_id }}.{{ bootstrap_token_secret }}'
     copy:
       dest: /tmp/kubeconfig
       owner: root