# curl --silent --remote-name --location https://github.com/ceph/ceph/raw/octopus/src/cephadm/cephadm
# chmod +x cephadm

# echo deb https://download.ceph.com/debian-octopus/ $(lsb_release -sc) main | sudo tee /etc/apt/sources.list.d/ceph.list
# wget -q -O- 'https://download.ceph.com/keys/release.asc' | sudo apt-key add -
# apt update

# echo deb https://download.ceph.com/debian-quincy/ $(lsb_release -sc) main | sudo tee /etc/apt/sources.list.d/ceph.list
# wget -q -O- 'https://download.ceph.com/keys/release.asc' | sudo apt-key add -
# apt update

# ./cephadm install

192.168.0.101は、ストレージネットワーク

# mkdir -p /etc/ceph
# cephadm bootstrap --mon-ip 192.168.0.101 --initial-dashboard-user admin --initial-dashboard-password XXXXX

# apt install ceph-common

ssh-copy-id -f -i /etc/ceph/ceph.pub root@ceph01
ssh-copy-id -f -i /etc/ceph/ceph.pub root@ceph02
ssh-copy-id -f -i /etc/ceph/ceph.pub root@ceph03

ceph orch host add ceph01 192.168.0.101
ceph orch host add ceph02 192.168.0.102
ceph orch host add ceph03 192.168.0.103

ceph orch host label ceph01 mon
ceph orch host label ceph02 mon
ceph orch host label ceph03 mon
ceph orch host label ceph01 osd
ceph orch host label ceph02 osd
ceph orch host label ceph03 osd
ceph orch host label ceph01 mgr

# ceph orch host ls
HOST     ADDR            LABELS       STATUS  
ceph01 192.168.0.101  _admin mon osd mgr          
ceph02 192.168.0.102  mon osd              
ceph03 192.168.0.103  mon osd 
3 hosts in cluster

# vim ceph_cluster_conf.yaml
service_type: mon
placement:
  count: 3
  label: mon
---
service_type: mgr
placement:
  count: 1
  label: mgr
---
service_type: osd
service_id: osd_using_paths
placement:
  hosts:
    - ceph01 
    - ceph02 
    - ceph03 
spec:
  data_devices:
    paths:
    - /dev/sdb
    - /dev/sdc

# ceph orch apply -i ceph_cluster_conf.yaml

下記で見ているとだんだんcephが構築されていってるのが見える

watch ceph -s

cephadm shell cat /etc/ceph/ceph.conf > /etc/ceph/ceph.conf