- Getting Started Configuration Accessing Your Cluster
- Accessing your Cluster
- CephFS
- MDS Notifications
- CephFS Guard
- RBD
- S3
- S3 Multisite
- NVMe over Fabrics
- SMB
- NFS
- Ceph Keys
- HA Groups
- Updating croit
- Replacing OSDs
- Replacing NIC
- PG numbers
- Updating Ceph
- Migrating or restoring croit container
HA Groups
NFS and RGWs are lacking native high availability. To address this, croit offers high availability through HA Groups.
- Navigate to
Gateways -> HA Groups. - Click
Create.
Binding a virtual IP
A virtual IP lives on one node at a time, but the services that serve it have to be ready on every
member, so they need to bind the address before it arrives. croit handles this per socket: the HAProxy
configuration it generates marks each virtual IP bind transparent, which asks the kernel to allow that
one bind. Nothing changes for the rest of the node, so a service pointed at an address the node does not
hold still fails right away with cannot assign requested address instead of starting up and quietly
receiving nothing.
If you override the HAProxy configuration template, keep transparent on the bind lines for your
virtual IPs. Without it, HAProxy starts only on the node that currently holds the IP, and the other
members cannot take over.