Update Cilium application.yaml to enhance ignoreDifferences for cilium-operator Deployment and improve Helm sync handling. Modify kube-vip daemonset.yaml to adjust VIP interface and add new environment variables for better configuration. Update README.md with troubleshooting tips for kube-vip and Helm upgrade conflicts.

clusters/noble/apps/cilium/application.yaml

@@ -7,8 +7,8 @@ metadata:
     argocd.argoproj.io/sync-wave: "0"
 spec:
   project: default
-  # Helm TLS material for Hubble is rotated/generated; Argo SSA and CLI helm
+  # Argo SSA vs CLI helm: ignore generated TLS and fields Argo commonly owns so
-  # upgrades both touch Secret data and cause apply conflicts unless ignored.
+  # RespectIgnoreDifferences can skip fighting Helm on sync.
   ignoreDifferences:
     - group: ""
       kind: Secret
@@ -16,6 +16,13 @@ spec:
       namespace: kube-system
       jqPathExpressions:
         - .data
+    - group: apps
+      kind: Deployment
+      name: cilium-operator
+      namespace: kube-system
+      jsonPointers:
+        - /spec/replicas
+        - /spec/strategy/rollingUpdate/maxUnavailable
   destination:
     server: https://kubernetes.default.svc
     namespace: kube-system

clusters/noble/apps/kube-vip/vip-daemonset.yaml

@@ -23,6 +23,8 @@ spec:
         - key: node-role.kubernetes.io/master
           operator: Exists
           effect: NoSchedule
+        - operator: Exists
+          effect: NoExecute
       containers:
         - name: kube-vip
           image: ghcr.io/kube-vip/kube-vip:v0.8.3
@@ -36,17 +38,32 @@ spec:
               value: "192.168.50.230"
             - name: port
               value: "6443"
+            # Physical uplink from `talosctl -n <cp-ip> get links` (this cluster: ens18).
             - name: vip_interface
-              value: "eth0"
+              value: "ens18"
+            - name: vip_subnet
+              value: "32"
+            - name: vip_leaderelection
+              value: "true"
             - name: cp_enable
               value: "true"
+            - name: cp_namespace
+              value: "kube-system"
             - name: svc_enable
               value: "true"
-            - name: servicesElection
+            # Env is svc_election (not servicesElection); see pkg/kubevip/config_envvar.go
+            - name: svc_election
               value: "true"
+            - name: vip_leaseduration
+              value: "5"
+            - name: vip_renewdeadline
+              value: "3"
+            - name: vip_retryperiod
+              value: "1"
           securityContext:
             capabilities:
               add:
                 - NET_ADMIN
                 - NET_RAW
+                - SYS_TIME
 

talos/README.md

@@ -171,17 +171,37 @@ kubectl get pods -n kube-system -l app.kubernetes.io/part-of=cilium -w
 operators with hard anti-affinity) cannot deadlock `helm --wait` when only one
 node can take the operator early in bootstrap.
 
-If **`helm upgrade` fails** with a server-side apply conflict on
+If **`helm upgrade` fails** with server-side apply conflicts and
-`kube-system/hubble-server-certs` and **`argocd-controller`**, Argo already
+**`argocd-controller`**, Argo already synced Cilium and **owns those fields**
-synced Cilium and owns that Secret’s TLS fields. The **`cilium` Application**
+on live objects. Clearing **`syncPolicy`** on the Application does **not**
-uses **`ignoreDifferences`** on that Secret plus **`RespectIgnoreDifferences`**
+remove that ownership; Helm still conflicts until you **take over** the fields
-so GitOps and occasional CLI Helm runs do not fight over `.data`. Until that
+or only use Argo.
-manifest is applied in the cluster, either **suspend** the `cilium` Application
+
-in Argo, or delete the Secret once (`kubectl delete secret
+**One-shot CLI fix** (Helm 3.13+): add **`--force-conflicts`** so SSA wins the
-hubble-server-certs -n kube-system`) and re-run **`helm upgrade --install`**
+disputed fields:
-before Argo reconciles again. After bootstrap, prefer **`kubectl -n argocd get
+
-application cilium -o yaml`** / Argo UI to sync Cilium instead of ad hoc
+```bash
-Helm, unless you suspend the app first.
+helm upgrade --install cilium cilium/cilium \
+  --namespace kube-system \
+  --version 1.16.6 \
+  -f clusters/noble/apps/cilium/helm-values.yaml \
+  --force-conflicts
+```
+
+Typical conflicts: Secret **`hubble-server-certs`** (`.data` TLS) and
+Deployment **`cilium-operator`** (`.spec.replicas`,
+`.spec/strategy/rollingUpdate/maxUnavailable`). The **`cilium` Application**
+lists **`ignoreDifferences`** for those paths plus **`RespectIgnoreDifferences`**
+so later Argo syncs do not keep overwriting them. Apply the manifest after you
+change it: **`kubectl apply -f clusters/noble/apps/cilium/application.yaml`**.
+
+After bootstrap, prefer syncing Cilium **only through Argo** (from Git) instead
+of ad hoc Helm, unless you suspend the **`cilium`** Application first.
+
+Shell tip: a line like **`# comment`** must start with **`#`**; if the shell
+reports **`command not found: #`**, the character is not a real hash or the
+line was pasted wrong—run **`kubectl apply ...`** as its own command without a
+leading comment on the same paste block.
 
 If nodes were already `Ready`, you can skip straight to section 7.
 
@@ -234,6 +254,26 @@ kubectl -n kube-system get pods -l app.kubernetes.io/name=kube-vip-ds -o wide
 nc -vz 192.168.50.230 6443
 ```
 
+If **`kube-vip-ds` pods are `CrashLoopBackOff`**, logs usually show
+`could not get link for interface '…'`. kube-vip binds the VIP to
+**`vip_interface`**; on Talos the uplink is often **`eno1`**, **`enp0s…`**, or
+**`enx…`**, not **`eth0`**. On a control-plane node IP from `talconfig.yaml`:
+
+```bash
+talosctl -n 192.168.50.20 get links
+```
+
+Do **not** paste that command’s **table output** back into the shell: zsh runs
+each line as a command (e.g. `192.168.50.20` → `command not found`), and a line
+starting with **`NODE`** can be mistaken for the **`node`** binary and try to
+load a file like **`NAMESPACE`** in the current directory. Also avoid pasting
+the **prompt** (`(base) … %`) together with the command (duplicate prompt →
+parse errors).
+
+Set **`vip_interface`** in `clusters/noble/apps/kube-vip/vip-daemonset.yaml` to
+that link’s **`metadata.id`**, commit, sync (or `kubectl apply -k
+clusters/noble/apps/kube-vip`), and confirm pods go **`Running`**.
+
 ## 9) Argo CD via DNS host (no port)
 
 Argo CD is exposed through a kube-vip managed LoadBalancer Service: