feat: add CSI smoke test and default Traefik LB location

ansible/roles/ccm/defaults/main.yml

@@ -1,3 +1,4 @@
 ---
 hcloud_token: ""
 cluster_name: "k8s-cluster"
+hcloud_lb_location: "nbg1"

ansible/roles/ccm/tasks/main.yml

@@ -49,6 +49,30 @@
   delay: 10
   when: ccm_workload_kind.stdout == "daemonset"
 
+- name: Set default Hetzner load balancer location for Traefik service
+  command: kubectl -n kube-system annotate service traefik load-balancer.hetzner.cloud/location={{ hcloud_lb_location }} --overwrite
+  register: traefik_annotation
+  changed_when: true
+  failed_when: false
+
+- name: Show Traefik service when annotation patch fails
+  command: kubectl -n kube-system get service traefik -o yaml
+  register: traefik_service_dump
+  changed_when: false
+  failed_when: false
+  when: traefik_annotation.rc != 0
+
+- name: Fail when Traefik load balancer annotation cannot be set
+  fail:
+    msg: |
+      Failed to set Hetzner load balancer location annotation on kube-system/traefik service.
+      Command output:
+      {{ traefik_annotation.stderr | default(traefik_annotation.stdout) }}
+
+      Service dump:
+      {{ traefik_service_dump.stdout | default('n/a') }}
+  when: traefik_annotation.rc != 0
+
 - name: Show CCM namespace objects when workload missing
   command: kubectl -n kube-system get all | grep hcloud-cloud-controller-manager || true
   register: ccm_ns_objects

ansible/roles/csi/defaults/main.yml

@@ -6,3 +6,6 @@ csi_rollout_timeout_seconds: 30
 csi_rollout_retries: 8
 csi_rollout_delay_seconds: 5
 csi_failure_log_tail_lines: 120
+csi_smoke_test_enabled: true
+csi_smoke_test_storage_class: "hcloud-volumes"
+csi_smoke_test_size: "1Gi"

ansible/roles/csi/tasks/main.yml

@@ -70,6 +70,31 @@
   failed_when: false
   when: csi_controller_rollout.rc != 0
 
+- name: Show CSI driver previous logs on failure
+  shell: |
+    pod="$(kubectl -n kube-system get pods -l app=hcloud-csi-controller -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)"
+    if [ -n "$pod" ]; then
+      kubectl -n kube-system logs "$pod" -c hcloud-csi-driver --previous --tail={{ csi_failure_log_tail_lines }}
+    fi
+  register: csi_driver_previous_logs
+  changed_when: false
+  failed_when: false
+  when: csi_controller_rollout.rc != 0
+
+- name: Show sidecar previous logs on failure
+  shell: |
+    pod="$(kubectl -n kube-system get pods -l app=hcloud-csi-controller -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)"
+    if [ -n "$pod" ]; then
+      for container in csi-attacher csi-resizer csi-provisioner; do
+        echo "===== $container ====="
+        kubectl -n kube-system logs "$pod" -c "$container" --previous --tail={{ csi_failure_log_tail_lines }} || true
+      done
+    fi
+  register: csi_sidecar_previous_logs
+  changed_when: false
+  failed_when: false
+  when: csi_controller_rollout.rc != 0
+
 - name: Show recent kube-system events on failure
   command: kubectl -n kube-system get events --sort-by=.lastTimestamp
   register: csi_recent_events
@@ -119,27 +144,117 @@
   fail:
     msg: "CSI node daemonset rollout failed: {{ csi_node_rollout.stdout | default('') }} {{ csi_node_rollout.stderr | default('') }}"
   when: csi_node_rollout.rc != 0
-- name: Show CSI driver previous logs on failure
-  shell: |
-    pod="$(kubectl -n kube-system get pods -l app=hcloud-csi-controller -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)"
-    if [ -n "$pod" ]; then
-      kubectl -n kube-system logs "$pod" -c hcloud-csi-driver --previous --tail={{ csi_failure_log_tail_lines }}
-    fi
-  register: csi_driver_previous_logs
-  changed_when: false
-  failed_when: false
-  when: csi_controller_rollout.rc != 0
 
-- name: Show sidecar previous logs on failure
+- name: Apply CSI smoke test resources
   shell: |
-    pod="$(kubectl -n kube-system get pods -l app=hcloud-csi-controller -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)"
-    if [ -n "$pod" ]; then
-      for container in csi-attacher csi-resizer csi-provisioner; do
-        echo "===== $container ====="
-        kubectl -n kube-system logs "$pod" -c "$container" --previous --tail={{ csi_failure_log_tail_lines }} || true
-      done
-    fi
-  register: csi_sidecar_previous_logs
-  changed_when: false
+    kubectl apply -f - <<'EOF'
+    apiVersion: v1
+    kind: PersistentVolumeClaim
+    metadata:
+      name: csi-smoke-pvc
+      namespace: kube-system
+    spec:
+      accessModes:
+        - ReadWriteOnce
+      resources:
+        requests:
+          storage: {{ csi_smoke_test_size }}
+      storageClassName: {{ csi_smoke_test_storage_class }}
+    ---
+    apiVersion: batch/v1
+    kind: Job
+    metadata:
+      name: csi-smoke-job
+      namespace: kube-system
+    spec:
+      backoffLimit: 0
+      template:
+        spec:
+          restartPolicy: Never
+          containers:
+            - name: write-and-read
+              image: busybox:1.36
+              command: ["/bin/sh", "-c", "echo csi-ok > /data/health && cat /data/health"]
+              volumeMounts:
+                - name: data
+                  mountPath: /data
+          volumes:
+            - name: data
+              persistentVolumeClaim:
+                claimName: csi-smoke-pvc
+    EOF
+  changed_when: true
+  when: csi_smoke_test_enabled | bool
+
+- name: Wait for CSI smoke PVC to bind
+  command: kubectl -n kube-system wait --for=jsonpath={.status.phase}=Bound pvc/csi-smoke-pvc --timeout=120s
+  register: csi_smoke_pvc_wait
   failed_when: false
-  when: csi_controller_rollout.rc != 0
+  changed_when: false
+  when: csi_smoke_test_enabled | bool
+
+- name: Wait for CSI smoke Job completion
+  command: kubectl -n kube-system wait --for=condition=complete job/csi-smoke-job --timeout=180s
+  register: csi_smoke_job_wait
+  failed_when: false
+  changed_when: false
+  when:
+    - csi_smoke_test_enabled | bool
+    - csi_smoke_pvc_wait.rc == 0
+
+- name: Show CSI smoke job logs
+  command: kubectl -n kube-system logs job/csi-smoke-job
+  register: csi_smoke_job_logs
+  failed_when: false
+  changed_when: false
+  when: csi_smoke_test_enabled | bool
+
+- name: Show CSI smoke resources on failure
+  command: kubectl -n kube-system get pvc csi-smoke-pvc job csi-smoke-job pod -l job-name=csi-smoke-job -o wide
+  register: csi_smoke_status
+  failed_when: false
+  changed_when: false
+  when:
+    - csi_smoke_test_enabled | bool
+    - csi_smoke_pvc_wait.rc != 0 or (csi_smoke_job_wait.rc | default(1)) != 0
+
+- name: Show CSI smoke pod describe on failure
+  shell: |
+    pod="$(kubectl -n kube-system get pods -l job-name=csi-smoke-job -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)"
+    if [ -n "$pod" ]; then
+      kubectl -n kube-system describe pod "$pod"
+    fi
+  register: csi_smoke_pod_describe
+  failed_when: false
+  changed_when: false
+  when:
+    - csi_smoke_test_enabled | bool
+    - csi_smoke_pvc_wait.rc != 0 or (csi_smoke_job_wait.rc | default(1)) != 0
+
+- name: Fail when CSI smoke test fails
+  fail:
+    msg: |
+      CSI smoke test failed.
+      PVC wait:
+      {{ csi_smoke_pvc_wait.stdout | default(csi_smoke_pvc_wait.stderr) | default('n/a') }}
+
+      Job wait:
+      {{ csi_smoke_job_wait.stdout | default(csi_smoke_job_wait.stderr | default('n/a')) }}
+
+      Resources:
+      {{ csi_smoke_status.stdout | default('n/a') }}
+
+      Pod describe:
+      {{ csi_smoke_pod_describe.stdout | default('n/a') }}
+
+      Job logs:
+      {{ csi_smoke_job_logs.stdout | default('n/a') }}
+  when:
+    - csi_smoke_test_enabled | bool
+    - csi_smoke_pvc_wait.rc != 0 or (csi_smoke_job_wait.rc | default(1)) != 0
+
+- name: Cleanup CSI smoke test resources
+  command: kubectl -n kube-system delete job csi-smoke-job pvc csi-smoke-pvc --ignore-not-found
+  failed_when: false
+  changed_when: false
+  when: csi_smoke_test_enabled | bool