Thanks, it turned out to be relatively simple in that I just needed 2 PVs (prometheus-1 and 2) to satisfy prometheus and 3 (alertmanager-1 to 3) to satisfy the alertmanager. It wasn’t immediately obvious how to solve this in a ‘static’ system it is documented and now working - I just set the two `storage_enabled` variables but leave the `storageslass` ones alone.
I understand the side-effects of NFS but my options (at the moment) are extremely limited. Thanks for your help. Alan Christie achris...@informaticsmatters.com > On 12 Nov 2019, at 1:28 pm, Simon Pasquier <spasq...@redhat.com> wrote: > > On Wed, Nov 6, 2019 at 6:11 PM Alan Christie > <achris...@informaticsmatters.com> wrote: >> >> Hi, >> >> My cluster doesn’t have dynamic volumes at the moment. For experimentation >> is it possible to use NFS volumes in 3.11 for prometheus and the alert >> manager? > > In general Prometheus doesn't play well with NFS because most > implementations don't fully support POSIX. > It is called out in the Prometheus documentation: > https://prometheus.io/docs/prometheus/latest/storage/#operational-aspects > >> >> I notice that the ansible playbook variables for prometheus in OKD 3.11 are >> very different to those in 3.7 but... > > Yes the big difference starting with 3.11 is that Prometheus is > deployed using the Prometheus operator via the Cluster Monitoring > Operator. > >> >> - Can I use pre-provisioned NFS volumes? >> - …or…is there an equivalent of 3.7’s >> “openshift_prometheus_alertmanager_storage_kind=nfs"? > > See > https://docs.okd.io/3.11/install_config/prometheus_cluster_monitoring.html#persistent-storage > > >> >> Any advice would be greatly appreciated. >> >> Alan Christie >> achris...@informaticsmatters.com >> >> >> >> >> _______________________________________________ >> users mailing list >> users@lists.openshift.redhat.com >> http://lists.openshift.redhat.com/openshiftmm/listinfo/users > _______________________________________________ users mailing list users@lists.openshift.redhat.com http://lists.openshift.redhat.com/openshiftmm/listinfo/users
