Bug #44923
closedmgr/dashboard: standby mgr redirects to a IP address instead of a FQDN URL
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Description
Only when the dashboard server_address is left to the default localhost (0.0.0.0 or ::) the stand-by ceph-mgr's dashboard redirects to a FQDN hostname. However, if the dashboard address is bound to a specific interface (192.0.2.1 for the active mgr, 192.0.2.2 for the stand-by mgr), then only that IP address is used:
# curl http://192.0.2.2:8443 This resource can be found at <a href='http://192.0.2.1:8443/'>http://192.0.2.1:8443/</a>.
Or:
# ceph mgr services { "dashboard": "http://192.0.2.1:8443/", "prometheus": "http://x.ceph-mgr.example.com:9283/" }
That full URI (including hostname) is provided by the dashboard serve() -> self.set_uri()
and uses python socket.getfqdn()
.
Given that under containerized deployments the internal and external IP address will likely differ from the external ones, we should avoid returning a useless IP and either use, by default, the retrieved hostname or a configured one.
Additionally, returning IP address 'breaks' the seamless failover, as the browser cannot ensure that the IP address and the FQDN are the same web service (since HTTP servers may use the hostname part in the HTTP GET request to redirect to different virtual servers from the same IP:port).
OPEN QUESTION: would it be desirable that the mgr itself deals with this matter for all services? That way ceph-mgr modules only need to provide (schema, port, URL path)
(while the hostname part is guessed by the ceph-mgr).
Updated by Ernesto Puerta about 4 years ago
- Related to Bug #42664: mgr/{dashboard,prometheus}: Fix hostname in `ceph mgr services` added
Updated by Lenz Grimmer about 4 years ago
- Status changed from New to Fix Under Review
- Pull request ID set to 34452
Updated by Lenz Grimmer about 4 years ago
- Status changed from Fix Under Review to Pending Backport
- Assignee set to Ernesto Puerta
Updated by Volker Theile about 4 years ago
- Copied to Backport #45019: nautilus: mgr/dashboard: standby mgr redirects to a IP address instead of a FQDN URL added
Updated by Volker Theile about 4 years ago
- Copied to Backport #45020: octopus: mgr/dashboard: standby mgr redirects to a IP address instead of a FQDN URL added
Updated by Nathan Cutler almost 4 years ago
- Status changed from Pending Backport to Resolved
While running with --resolve-parent, the script "backport-create-issue" noticed that all backports of this issue are in status "Resolved" or "Rejected".
Updated by Ernesto Puerta about 3 years ago
- Project changed from mgr to Dashboard
- Category changed from 146 to General - Back-end