From dfa9a9be70d5d18f2a4293e5f49324aa75a9ebb9 Mon Sep 17 00:00:00 2001 From: Sylvain Desbureaux Date: Thu, 29 Aug 2019 17:35:51 +0200 Subject: Move Policy Storage to RWO Today when deploying Policy with OOM, the PersistentVolumeClaim needs the "ReadWriteMany" (or "RWX") capability. According to Kubernetes Documentation (https://kubernetes.io/docs/concepts/storage/persistent-volumes/#access-modes), ReadWriteMany stands for "the volume can be mounted as read-write by many nodes". That means that a particular PVC needs to be read and written from many pods. That also means that your code takes that into account and do the work to avoid write at the same place at the same time. An issue on RWX mode is that most "official" storage driver from Kubernetes doesn't support it (13 over the 19 drivers doesn't support it, espacially OpenStack, Amazon and Google storage classes). Policy PVC for Nexus and Policy PVC for mariadb are used only for one POD. Thus we don't need RWX. Change-Id: Idf8a6ba8ef14ce7ca397438c2200c11517d0458e Issue-ID: POLICY-2019 Signed-off-by: Sylvain Desbureaux --- kubernetes/policy/charts/drools/charts/nexus/values.yaml | 2 +- kubernetes/policy/charts/mariadb/values.yaml | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'kubernetes/policy/charts') diff --git a/kubernetes/policy/charts/drools/charts/nexus/values.yaml b/kubernetes/policy/charts/drools/charts/nexus/values.yaml index 5d85f6c5b0..2f80892ab2 100644 --- a/kubernetes/policy/charts/drools/charts/nexus/values.yaml +++ b/kubernetes/policy/charts/drools/charts/nexus/values.yaml @@ -73,7 +73,7 @@ ingress: persistence: enabled: true volumeReclaimPolicy: Retain - accessMode: ReadWriteMany + accessMode: ReadWriteOnce size: 2Gi mountPath: /dockerdata-nfs mountSubPath: nexus/data diff --git a/kubernetes/policy/charts/mariadb/values.yaml b/kubernetes/policy/charts/mariadb/values.yaml index 15c75b753c..9b7102dbeb 100644 --- a/kubernetes/policy/charts/mariadb/values.yaml +++ b/kubernetes/policy/charts/mariadb/values.yaml @@ -60,7 +60,7 @@ readiness: persistence: enabled: true volumeReclaimPolicy: Retain - accessMode: ReadWriteMany + accessMode: ReadWriteOnce size: 2Gi mountPath: /dockerdata-nfs mountSubPath: mariadb/data -- cgit 1.2.3-korg