things that dont work

playbooks/kubernetes-init.yml

@@ -0,0 +1,24 @@
+- name: "Init Cluster"
+  block:
+    - name: Wait for everything to start up
+      # TODO Wait for the coredns pods to be Pending
+      ansible.builtin.command: "false"
+      changed_when: false
+    - name: Apply Flannel
+      ansible.builtin.command:
+        cmd: kubectl apply -f https://github.com/flannel-io/flannel/releases/download/v0.24.2/kube-flannel.yml
+      changed_when: true
+    - name: Give it some time to breathe
+      ansible.builtin.command:
+        cmd: sleep 30
+      changed_when: false
+    - name: Allow scheduling on the control plane
+      ansible.builtin.command:
+        cmd: kubectl taint nodes --all node-role.kubernetes.io/control-plane-
+      changed_when: true
+    - name: Start nginx test containers
+      ansible.builtin.command:
+        cmd: kubectl apply -f /root/nginx-test.yaml
+      changed_when: true
+  environment:
+    KUBECONFIG: /etc/kubernetes/admin.conf

playbooks/kubernetes.yml

@@ -72,23 +72,29 @@
         src: "../vps1/kubeadm-config.yaml"
         dest: "/root/kubeadm-config.yaml"
         mode: "u=r,g=r,o=r"
+    - name: Copy test nginx deployment
+      ansible.builtin.copy:
+        src: "../vps1/nginx-test.yaml"
+        dest: "/root/nginx-test.yaml"
+        mode: "u=rw,g=r,o=r"
+    - name: Exit early
+      ansible.builtin.command: "false"
+      changed_when: false
     # ====================
     # https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/create-cluster-kubeadm
     # https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/create-cluster-kubeadm/#initializing-your-control-plane-node
     - name: Init
       ansible.builtin.command:
+        # https://github.com/flannel-io/flannel/blob/master/Documentation/kubernetes.md
+        # Delete it with https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/create-cluster-kubeadm/#tear-down
         cmd: kubeadm init --config /root/kubeadm-config.yaml
         creates: /var/lib/kubelet/config.yaml
       notify:
         - "Installed Cluster"
-    # We may need to export KUBECONFIG=/etc/kubernetes/admin.conf ?
   handlers:
     - name: "Containerd config changed"
       ansible.builtin.service:
         name: containerd
         state: reloaded
     - name: "Installed Cluster"
-      ansible.builtin.command:
-        cmd: kubectl apply -f https://github.com/flannel-io/flannel/releases/v0.24.2/download/kube-flannel.yml
-      environment:
-        KUBECONFIG: /etc/kubernetes/admin.conf
+      ansible.builtin.include_tasks: ./kubernetes-init.yml

vps1/kubeadm-config.yaml

@@ -2,6 +2,8 @@ kind: ClusterConfiguration
 apiVersion: kubeadm.k8s.io/v1beta3
 kubernetesVersion: v1.29.0
 controlPlaneEndpoint: k8s-control.nilstrieb.dev
+networking:
+  podSubnet: "10.244.0.0/16" # --pod-network-cidr
 ---
 kind: KubeletConfiguration
 apiVersion: kubelet.config.k8s.io/v1beta1

vps1/nginx-test.yaml

@@ -0,0 +1,23 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: nginx-deployment
+spec:
+  selector:
+    matchLabels:
+      app: nginx
+  replicas: 2
+  template:
+    metadata:
+      labels:
+        app: nginx
+    spec:
+      containers:
+      - name: nginx
+        image: nginx
+        resources:
+          limits:
+            memory: "128Mi"
+            cpu: "500m"
+        ports:
+        - containerPort: 80