How-to guides

This section contains guides to help you manage your already up and running Ceph cluster, taking you through the complete node lifecycle.

Installing and initialising Ceph

Perform a general install of Charmed Ceph access the web UI.

• Installing Charmed Ceph
• Installing Ceph dashboard

Managing your cluster

To ensure the health of your cluster, you need to scale your OSDs and MONs up or down, or replace OSD disks by recreating a Ceph OSD disk within a Charmed Ceph deployment. Depending on your MAAS nodes, you may need to change your change block devices.

• Adding OSDs
• Adding MONs
• Replacing OSD disks
• Removing OSDs
• Removing MONs
• Enabling full disk encryption

Multi-site operations

Here we discuss setting upRADOS Gateway multi-site replication in a charmed Ceph deployment. Native replication between ceph-radosgw applications is supported viajuju relations. By default, both primary and secondary RGW applications accept write operations (i.e. active-active replication is configured).

• Setting up multi-site replication
• Recovering from an outage with multi-site replication
• Scaling down multi-site to single-site

Integrating Charmed Ceph with other tools

Ceph works together with other products; find out how to integrate Charmed Ceph with:

• Kubernetes
• LXD
• OpenStack
• VMware

Upgrading deployment software

There are three pieces of software in a Charmed Ceph deployment that can be upgraded:

1. charms
2. cluster node operating system
3. Ceph itself

Security

Secure your OSDs with full disk encryption, and report any security issue to the team.

• Enabling full disk encryption
• Report security vulnerabilities