cephadm: add new page (#19376)

Co-authored-by: Managor <42655600+Managor@users.noreply.github.com>
Co-authored-by: Ivan Baluta <50071699+ivanbaluta@users.noreply.github.com>

pages/linux/cephadm.md

@@ -0,0 +1,29 @@
+# cephadm
+
+> Deploy and manage a Ceph cluster using containers.
+> Part of the Ceph orchestrator framework.
+> More information: <https://docs.ceph.com/en/latest/man/8/cephadm/>.
+
+- Bootstrap a new Ceph cluster on the current host:
+
+`sudo cephadm bootstrap --mon-ip {{monitor_ip}}`
+
+- Add a new host to the cluster:
+
+`sudo cephadm add-host {{hostname}} {{ip_address}}`
+
+- Deploy a specific service (e.g., mgr, mon, osd):
+
+`sudo cephadm deploy {{service_type}} --name {{service_name}}`
+
+- Check the status of cluster services:
+
+`sudo cephadm shell -- ceph {{[-s|--status]}}`
+
+- Enter a shell environment inside the Ceph container:
+
+`sudo cephadm shell`
+
+- Remove a service from the cluster:
+
+`sudo cephadm rm-service {{service_type}} --name {{service_name}}`