From: Shraddha Agrawal <shraddha.agrawal000@gmail.com>
Date: Mon, 9 Feb 2026 13:48:07 +0000 (+0530)
Subject: cephadm: add support for seastore
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=b5069eea2249aac209f2560acf411e7a55fba5de;p=ceph.git

cephadm: add support for seastore

This commit adds support for deploying seastore objectstore with
cephdm. This can be done in two ways:

1. using OSD spec file, we can set the objectstore argument to
seastore. eg -
```
service_type: osd
service_id: osd_crimson_seastore
placement:
  host_pattern: '*'
spec:
  objectstore: seastore
  osd_type: crimson
  data_devices:
    all: true
```

2. using --objectstore flag with ceph orch osd deploy. sample cmd:
```
ceph orch apply osd --all-available-devices --osd-type crimson --objectstore seastore
```

Fixes: https://tracker.ceph.com/issues/74616
Signed-off-by: Shraddha Agrawal <shraddha.agrawal000@gmail.com>
---

diff --git a/src/pybind/mgr/orchestrator/module.py b/src/pybind/mgr/orchestrator/module.py
index 5fc2fce63fa..abfbad7bfd5 100644
--- a/src/pybind/mgr/orchestrator/module.py
+++ b/src/pybind/mgr/orchestrator/module.py
@@ -1473,7 +1473,8 @@ class OrchestratorCli(OrchestratorClientMixin, MgrModule):
                    no_overwrite: bool = False,
                    method: Optional[OSDMethod] = None,
                    inbuf: Optional[str] = None,  # deprecated. Was deprecated before Quincy
-                   osd_type: Optional[OSDType] = None
+                   osd_type: Optional[OSDType] = None,
+                   objectstore: str = 'bluestore'
                    ) -> HandleCommandResult:
         """
         Create OSD daemon(s) on all available devices
@@ -1517,7 +1518,8 @@ class OrchestratorCli(OrchestratorClientMixin, MgrModule):
                     unmanaged=unmanaged,
                     preview_only=dry_run,
                     method=method,
-                    osd_type=osd_type
+                    osd_type=osd_type,
+                    objectstore=objectstore
                 )
             ]
             return self._apply_misc(dg_specs, dry_run, format, no_overwrite)
@@ -1529,7 +1531,8 @@ class OrchestratorCli(OrchestratorClientMixin, MgrModule):
                         svc_arg: Optional[str] = None,
                         method: Optional[OSDMethod] = None,
                         skip_validation: bool = False,
-                        osd_type: Optional[OSDType] = None) -> HandleCommandResult:
+                        osd_type: Optional[OSDType] = None,
+                        objectstore: str = 'bluestore') -> HandleCommandResult:
         """Create OSD daemon(s) on specified host and device(s) (e.g., ceph orch daemon add osd myhost:/dev/sdb)"""
         # Create one or more OSDs"""
 
@@ -1579,6 +1582,7 @@ Usage:
                 placement=PlacementSpec(host_pattern=host_name),
                 method=method,
                 osd_type=osd_type,
+                objectstore=objectstore,
                 **drive_group_spec,
             )
         except (TypeError, KeyError, ValueError) as e:
diff --git a/src/python-common/ceph/deployment/drive_group.py b/src/python-common/ceph/deployment/drive_group.py
index a40cada7e46..956bc9b67f1 100644
--- a/src/python-common/ceph/deployment/drive_group.py
+++ b/src/python-common/ceph/deployment/drive_group.py
@@ -257,7 +257,7 @@ class DriveGroupSpec(ServiceSpec):
         #: A list of strings, containing paths which should back OSDs
         self.data_directories = data_directories
 
-        #: ``filestore`` or ``bluestore``
+        #: ``filestore`` or ``bluestore`` or ``seastore``
         self.objectstore = objectstore
 
         #: ``true`` or ``false``
@@ -365,10 +365,10 @@ class DriveGroupSpec(ServiceSpec):
                     self.service_id,
                     "`all` is only allowed for data_devices")
 
-        if self.objectstore not in ('bluestore'):
+        if self.objectstore not in ['bluestore', 'seastore']:
             raise DriveGroupValidationError(self.service_id,
                                             f"{self.objectstore} is not supported. Must be "
-                                            f"one of ('bluestore')")
+                                            f"one of bluestore, seastore")
 
         if self.block_wal_size is not None and type(self.block_wal_size) not in [int, str]:
             raise DriveGroupValidationError(
@@ -396,7 +396,10 @@ class DriveGroupSpec(ServiceSpec):
             raise DriveGroupValidationError(
                 self.service_id,
                 'method raw only supports bluestore')
-
+        if self.method == 'raw' and self.objectstore == 'seastore':
+            raise DriveGroupValidationError(
+                self.service_id,
+                'method raw only supports bluestore')
         if self.data_devices.paths is not None:
             for device in list(self.data_devices.paths):
                 if not device.path:
@@ -405,6 +408,10 @@ class DriveGroupSpec(ServiceSpec):
             raise DriveGroupValidationError(
                 self.service_id,
                 'osd_type must be one of classic, crimson')
+        if self.objectstore == 'seastore' and self.osd_type == 'classic':
+            raise DriveGroupValidationError(
+                self.service_id,
+                'objectstore seastore only supports osd type crimson')
 
 
 yaml.add_representer(DriveGroupSpec, DriveGroupSpec.yaml_representer)