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52 lines
1.7 KiB
ReStructuredText
52 lines
1.7 KiB
ReStructuredText
dashboard plugin
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================
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Dashboard plugin visualizes the statistics of the cluster using a web server
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hosted by ``ceph-mgr``.
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Enabling
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--------
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The *dashboard* module is enabled with::
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ceph mgr module enable dashboard
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Configuration
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-------------
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Like most web applications, dashboard binds to a host name and port.
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By default, the ``ceph-mgr`` daemon hosting the dashboard (i.e., the
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currently active manager) will bind to port 7000 and any available
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IPv4 or IPv6 address on the host.
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Since each ``ceph-mgr`` hosts its own instance of dashboard, it may
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also be necessary to configure them separately. The hostname and port
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can be changed via the configuration key facility::
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ceph config-key set mgr/dashboard/$name/server_addr $IP
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ceph config-key set mgr/dashboard/$name/server_port $PORT
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where ``$name`` is the ID of the ceph-mgr who is hosting this
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dashboard web app.
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These settings can also be configured cluster-wide and not manager
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specific. For example,::
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ceph config-key set mgr/dashboard/server_addr $IP
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ceph config-key set mgr/dashboard/server_port $PORT
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If the port is not configured, the web app will bind to port ``7000``.
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If the address it not configured, the web app will bind to ``::``,
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which corresponds to all available IPv4 and IPv6 addresses.
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Load balancer
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-------------
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Please note that the dashboard will *only* start on the manager which
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is active at that moment. Query the Ceph cluster status to see which
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manager is active (e.g., ``ceph mgr dump``). In order to make the
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dashboard available via a consistent URL regardless of which manager
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daemon is currently active, you may want to set up a load balancer
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front-end to direct traffic to whichever manager endpoint is
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available.
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