api: Extend Ceph service state struct to report output of ceph status

Signed-off-by: Mathias Gibbens <mathias.gibbens@futurfusion.io>

Author: gibmat

incus-osd/api/service_ceph.go

@@ -20,7 +20,33 @@ type ServiceCephConfig struct {
 }
 
 // ServiceCephState represents state for the Ceph service.
-type ServiceCephState struct{}
+type ServiceCephState struct {
+	Cluster  ServiceCephStateCluster  `json:"cluster"  yaml:"cluster"`
+	Data     ServiceCephStateData     `json:"data"     yaml:"data"`
+	Services ServiceCephStateServices `json:"services" yaml:"services"`
+}
+
+// ServiceCephStateCluster reports fields from the output of `ceph status`.
+type ServiceCephStateCluster struct {
+	Health string `json:"health" yaml:"health"`
+	ID     string `json:"id"     yaml:"id"`
+}
+
+// ServiceCephStateData reports fields from the output of `ceph status`.
+type ServiceCephStateData struct {
+	Objects string `json:"objects" yaml:"objects"`
+	Pgs     string `json:"pgs"     yaml:"pgs"`
+	Pools   string `json:"pools"   yaml:"pools"`
+	Usage   string `json:"usage"   yaml:"usage"`
+}
+
+// ServiceCephStateServices reports fields from the output of `ceph status`.
+type ServiceCephStateServices struct {
+	Mgr       string `json:"mgr"        yaml:"mgr"`
+	Mon       string `json:"mon"        yaml:"mon"`
+	OSD       string `json:"osd"        yaml:"osd"`
+	RBDMirror string `json:"rbd-mirror" yaml:"rbd-mirror"` //nolint:tagliatelle
+}
 
 // ServiceCeph represents the state and configuration of the Ceph service.
 type ServiceCeph struct {