From d161a7ab3de01e6834cc99db2b1e29cf9f3cf843 Mon Sep 17 00:00:00 2001 From: Paul Buetow Date: Mon, 25 May 2026 23:24:24 +0300 Subject: example-apache-volume-claim: add NFS sentinel initContainer check Adds the standard nfs-check initContainer to verify the sentinel file exists before the main Apache container starts. Prevents silent fall-back to local XFS when NFS is unmounted on the node. --- .../helm-chart/templates/apache-deployment.yaml | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/f3s/example-apache-volume-claim/helm-chart/templates/apache-deployment.yaml b/f3s/example-apache-volume-claim/helm-chart/templates/apache-deployment.yaml index 78706a3..a900f07 100644 --- a/f3s/example-apache-volume-claim/helm-chart/templates/apache-deployment.yaml +++ b/f3s/example-apache-volume-claim/helm-chart/templates/apache-deployment.yaml @@ -14,6 +14,23 @@ spec: labels: app: apache spec: + initContainers: + - name: nfs-check-apache-htdocs + image: busybox:stable + command: + - sh + - -c + - | + test -f /mnt/.nfs-sentinel || ( + echo "ERROR: NFS sentinel missing at /mnt/.nfs-sentinel" + echo "refusing to start; node likely has NFS unmounted" + echo "pod would otherwise bind-mount the local-XFS shadow" + exit 1 + ) + volumeMounts: + - name: apache-htdocs + mountPath: /mnt + readOnly: true containers: - name: apache image: httpd:latest -- cgit v1.2.3