1. #!/bin/bash
2. mon_host=mon01.example.com
3. cluster=ceph
4.  
5. osd_host=$1
6.  
7. [ -z $osd_host ] && exit 1
8.  
9. ssh_osd() {
10.   ssh root@$osd_host "$*"
11. }
12.  
13. ssh_mon() {
14.   ssh root@$mon_host "$*"
15. }
16.  
17. recreate_dev() {
18.   id=$1
19.   dev=$2
20.   ssh_osd "systemctl stop ceph-osd@${id}"
21.   ssh_mon "ceph osd down ${id}"
22.   ssh_mon "ceph osd out ${id}"
23.   sleep 1
24.   ssh_mon "ceph osd destroy ${id} --yes-i-really-mean-it"
25.   sleep 1
26.   ssh_osd "ceph-volume lvm zap ${dev}"
27.   ssh_osd "ceph-volume lvm create --osd-id ${id} --data ${dev}"
28. }
29.  
30. get_num_osds() {
31.   ssh_osd "mount | grep -v tmpfs | grep 'osd/${cluster}' | awk '{printf \"%s %s\n\",\$1,\$3}' | sed 's_/var/lib/ceph/osd/${cluster}-__g' | wc -l"
32. }
33.  
34. get_next_osd() {
35.   ssh_osd "mount | grep -v tmpfs | grep 'osd/${cluster}' | awk '{printf \"%s %s\n\",\$1,\$3}' | sed 's_/var/lib/ceph/osd/${cluster}-__g' | sort -u | head -n 1"
36. }
37.  
38. for i in $(seq 1 `get_num_osds` )
39. do
40.   osd=$(get_next_osd)
41.   dev=$(echo $osd | awk '{print $1}')
42.   dev=${dev/[0-9]/}
43.   id=$(echo $osd | awk '{print $2}')
44.   echo "$i: id{$id} dev{$dev}"
45.   recreate_dev $id $dev
46. done
47.