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diff --git a/doc/cephadm/compatibility.rst b/doc/cephadm/compatibility.rst new file mode 100644 index 000000000..46ab62a62 --- /dev/null +++ b/doc/cephadm/compatibility.rst @@ -0,0 +1,66 @@ + +=========================== +Compatibility and Stability +=========================== + +.. _cephadm-compatibility-with-podman: + +Compatibility with Podman Versions +---------------------------------- + +Podman and Ceph have different end-of-life strategies. This means that care +must be taken in finding a version of Podman that is compatible with Ceph. + +This table shows which version pairs are expected to work or not work together: + + ++-----------+-----------------------------------------------+ +| Ceph | Podman | ++-----------+-------+-------+-------+-------+-------+-------+ +| | 1.9 | 2.0 | 2.1 | 2.2 | 3.0 | > 3.0 | ++===========+=======+=======+=======+=======+=======+=======+ +| <= 15.2.5 | True | False | False | False | False | False | ++-----------+-------+-------+-------+-------+-------+-------+ +| >= 15.2.6 | True | True | True | False | False | False | ++-----------+-------+-------+-------+-------+-------+-------+ +| >= 16.2.1 | False | True | True | False | True | True | ++-----------+-------+-------+-------+-------+-------+-------+ +| >= 17.2.0 | False | True | True | False | True | True | ++-----------+-------+-------+-------+-------+-------+-------+ + +.. note:: + + While not all podman versions have been actively tested against + all Ceph versions, there are no known issues with using podman + version 3.0 or greater with Ceph Quincy and later releases. + +.. warning:: + + To use Podman with Ceph Pacific, you must use **a version of Podman that + is 2.0.0 or higher**. However, **Podman version 2.2.1 does not work with + Ceph Pacific**. + + "Kubic stable" is known to work with Ceph Pacific, but it must be run + with a newer kernel. + + +.. _cephadm-stability: + +Stability +--------- + +Cephadm is relatively stable but new functionality is still being +added and bugs are occasionally discovered. If issues are found, please +open a tracker issue under the Orchestrator component (https://tracker.ceph.com/projects/orchestrator/issues) + +Cephadm support remains under development for the following features: + +- ceph-exporter deployment +- stretch mode integration +- monitoring stack (moving towards prometheus service discover and providing TLS) +- RGW multisite deployment support (requires lots of manual steps currently) +- cephadm agent + +If a cephadm command fails or a service stops running properly, see +:ref:`cephadm-pause` for instructions on how to pause the Ceph cluster's +background activity and how to disable cephadm. |