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YJWANG
[Ceph-pacific] cephadm on ubuntu 20.04 [podman] 본문
이전 포스팅 보기 : https://yjwang.tistory.com/119
이번엔 지난 포스팅과 다르게 podman 기반으로 Ceph cluster를 구축하겠습니다.
또한 orchastration module을 yaml을 이용해서 구성해보겠습니다.
podman 및 사전에 필요한 패키지와 환경을 구성하기 위해 ubuntu-cephadm-ansible project를 다운받습니다.
# git clone https://github.com/YoungjuWang/ubuntu-cephadm-ansible
inventory를 수정합니다.
# cd ubuntu-cephadm-ansible/
# cat ceph.inventory
virt-go-u20-50 ansible_connection=local
virt-go-u20-51 ansible_host="10.62.62.51"
virt-go-u20-52 ansible_host="10.62.62.52"
[all:vars]
ansible_ssh_common_args='-o StrictHostKeyChecking=no'
ssh-key를 생성한 다음 각 서버에 배포해줍니다.
# ssh-keygen
# ssh-copy-id 10.62.62.51
# ssh-copy-id 10.62.62.52
ansible connection을 check합니다.
# ansible -m ping -i ceph.inventory all
virt-go-u20-50 | SUCCESS => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python3"
},
"changed": false,
"ping": "pong"
}
virt-go-u20-51 | SUCCESS => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python3"
},
"changed": false,
"ping": "pong"
}
virt-go-u20-52 | SUCCESS => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python3"
},
"changed": false,
"ping": "pong"
}
playbook을 실행하여 환경 구성을 진행합니다.
# ansible-playbook -i ceph.inventory preflight.yml
...
PLAY RECAP **********************************************************************************************************
virt-go-u20-50 : ok=13 changed=10 unreachable=0 failed=0 skipped=5 rescued=0 ignored=0
virt-go-u20-51 : ok=13 changed=9 unreachable=0 failed=0 skipped=5 rescued=0 ignored=0
virt-go-u20-52 : ok=13 changed=10 unreachable=0 failed=0 skipped=5 rescued=0 ignored=0참고로 위 ansible은 아래 과정을 차례대로 진행합니다.
- /etc/hosts 설정
- ubuntu auto-upgrade 중지
- ca-certificate 패키지 업데이트
- container-engine repo key 추가
- container-engine repo 추가
- container-engine 설치
- Ceph repo key 추가
- Ceph repo 추가
- cephadm, ceph-common 설치
- NTP 설정
구성이 끝나면 host와 daemon설정을 담은 yml을 생성합니다.
# initial-cluster.yml
---
service_type: host
addr: 10.62.62.50
hostname: virt-go-u20-50
labels:
- _admin
- mon
- mgr
- osd
---
service_type: host
addr: 10.62.62.51
hostname: virt-go-u20-51
labels:
- mon
- mgr
- osd
---
service_type: host
addr: 10.62.62.52
hostname: virt-go-u20-52
labels:
- mon
- osd
---
service_type: mon
placement:
label: "mon"
---
service_type: mgr
placement:
label: "mgr"
---
service_type: osd
service_id: default_drive_group
placement:
label: "osd"
data_devices:
all: true
해당 파일을 이용하여 ceph-cluster를 구성합니다.
# cephadm bootstrap --mon-ip 10.62.62.50 --apply-spec initial-cluster.yml --initial-dashboard-user admin --initial-dashboard-password cephadmin
...
Applying initial-cluster.yml to cluster
Adding ssh key to virt-go-u20-51
Adding ssh key to virt-go-u20-52
Added host 'virt-go-u20-50' with addr '10.62.62.50'
Added host 'virt-go-u20-51' with addr '10.62.62.51'
Added host 'virt-go-u20-52' with addr '10.62.62.52'
Scheduled mon update...
Scheduled mgr update...
Scheduled osd.default_drive_group update...
You can access the Ceph CLI with:
sudo /usr/sbin/cephadm shell --fsid b14a814e-5654-11ec-be8d-0d74dd311fe3 -c /etc/ceph/ceph.conf -k /etc/ceph/ceph.client.admin.keyring
Please consider enabling telemetry to help improve Ceph:
ceph telemetry on
For more information see:
https://docs.ceph.com/docs/pacific/mgr/telemetry/
Bootstrap complete.initial-cluster.yml 파일에 명시된 대로 cluster가 생성됐어야합니다. 단, osd daemon 및 monitor daemon과 같은 daemon은 cluster setup 이후 ssh를 통해 진행되므로 추가 시간이 필요하니 기다리시가 바랍니다.
host가 정상적으로 등록됐는지 label은 맞게 들어가있는지 확인해봅니다.
# ceph orch host ls
HOST ADDR LABELS STATUS
virt-go-u20-50 10.62.62.50 _admin mon mgr osd
virt-go-u20-51 10.62.62.51 mon mgr osd
virt-go-u20-52 10.62.62.52 mon osd
daemon의 placement 설정과 daemon 수가 맞게 실행됐는지 확인합니다.
# ceph orch ls
NAME PORTS RUNNING REFRESHED AGE PLACEMENT
alertmanager ?:9093,9094 1/1 10s ago 6m count:1
crash 3/3 13s ago 6m *
grafana ?:3000 1/1 10s ago 6m count:1
mgr 2/2 13s ago 5m label:mgr
mon 3/3 13s ago 5m label:mon
node-exporter ?:9100 3/3 13s ago 6m *
osd.default_drive_group 9/12 13s ago 5m label:osd
prometheus ?:9095 1/1 10s ago 6m count:1
osd가 정상적으로 실행됐는지 확인합니다.
# ceph orch ps --daemon_type=osd
NAME HOST PORTS STATUS REFRESHED AGE MEM USE MEM LIM VERSION IMAGE ID CONTAINER ID
osd.0 virt-go-u20-52 running (105s) 57s ago 105s 28.1M 4096M 16.2.6 02a72919e474 4db6c721bf09
osd.1 virt-go-u20-50 running (104s) 54s ago 104s 27.9M 4096M 16.2.6 02a72919e474 d6978b339555
osd.2 virt-go-u20-51 running (104s) 57s ago 103s 28.4M 4096M 16.2.6 02a72919e474 7316c82b7495
osd.3 virt-go-u20-50 running (94s) 54s ago 94s 27.3M 4096M 16.2.6 02a72919e474 8bede12640f4
osd.4 virt-go-u20-52 running (97s) 57s ago 97s 29.4M 4096M 16.2.6 02a72919e474 7e0cfc95e388
osd.5 virt-go-u20-51 running (95s) 57s ago 94s 26.4M 4096M 16.2.6 02a72919e474 f7dc104f56a2
osd.6 virt-go-u20-50 running (82s) 54s ago 82s 27.1M 4096M 16.2.6 02a72919e474 434f92706adb
osd.7 virt-go-u20-52 running (86s) 57s ago 86s 27.9M 4096M 16.2.6 02a72919e474 a5a4156e0845
osd.8 virt-go-u20-51 running (83s) 57s ago 83s 30.3M 4096M 16.2.6 02a72919e474 d551f2644c09
# ceph osd df tree
ID CLASS WEIGHT REWEIGHT SIZE RAW USE DATA OMAP META AVAIL %USE VAR PGS STATUS TYPE NAME
-1 0.08817 - 90 GiB 57 MiB 3.0 MiB 0 B 54 MiB 90 GiB 0.06 1.00 - root default
-7 0.02939 - 30 GiB 19 MiB 1012 KiB 0 B 18 MiB 30 GiB 0.06 1.00 - host virt-go-u20-50
1 hdd 0.00980 1.00000 10 GiB 5.8 MiB 336 KiB 0 B 5.4 MiB 10 GiB 0.06 0.91 74 up osd.1
3 hdd 0.00980 1.00000 10 GiB 7.5 MiB 336 KiB 0 B 7.2 MiB 10 GiB 0.07 1.18 103 up osd.3
6 hdd 0.00980 1.00000 10 GiB 5.8 MiB 340 KiB 0 B 5.4 MiB 10 GiB 0.06 0.91 79 up osd.6
-5 0.02939 - 30 GiB 19 MiB 1016 KiB 0 B 18 MiB 30 GiB 0.06 1.00 - host virt-go-u20-51
2 hdd 0.00980 1.00000 10 GiB 5.8 MiB 340 KiB 0 B 5.5 MiB 10 GiB 0.06 0.92 74 up osd.2
5 hdd 0.00980 1.00000 10 GiB 5.8 MiB 336 KiB 0 B 5.5 MiB 10 GiB 0.06 0.92 93 up osd.5
8 hdd 0.00980 1.00000 10 GiB 7.5 MiB 340 KiB 0 B 7.1 MiB 10 GiB 0.07 1.17 89 up osd.8
-3 0.02939 - 30 GiB 19 MiB 1016 KiB 0 B 18 MiB 30 GiB 0.06 1.00 - host virt-go-u20-52
0 hdd 0.00980 1.00000 10 GiB 5.9 MiB 336 KiB 0 B 5.6 MiB 10 GiB 0.06 0.93 91 up osd.0
4 hdd 0.00980 1.00000 10 GiB 5.8 MiB 340 KiB 0 B 5.5 MiB 10 GiB 0.06 0.92 90 up osd.4
7 hdd 0.00980 1.00000 10 GiB 7.4 MiB 340 KiB 0 B 7.1 MiB 10 GiB 0.07 1.16 75 up osd.7
TOTAL 90 GiB 57 MiB 3.0 MiB 0 B 54 MiB 90 GiB 0.06
MIN/MAX VAR: 0.91/1.18 STDDEV: 0.01
# ceph orch device ls
Hostname Path Type Serial Size Health Ident Fault Available
virt-go-u20-50 /dev/vda hdd 10.7G Unknown N/A N/A No
virt-go-u20-50 /dev/vdb hdd 10.7G Unknown N/A N/A No
virt-go-u20-50 /dev/vdc hdd 10.7G Unknown N/A N/A No
virt-go-u20-51 /dev/vda hdd 10.7G Unknown N/A N/A No
virt-go-u20-51 /dev/vdb hdd 10.7G Unknown N/A N/A No
virt-go-u20-51 /dev/vdc hdd 10.7G Unknown N/A N/A No
virt-go-u20-52 /dev/vda hdd 10.7G Unknown N/A N/A No
virt-go-u20-52 /dev/vdb hdd 10.7G Unknown N/A N/A No
virt-go-u20-52 /dev/vdc hdd 10.7G Unknown N/A N/A No
마지막으로 ceph cluster 상태를 확인합니다.
# ceph -s
cluster:
id: b14a814e-5654-11ec-be8d-0d74dd311fe3
health: HEALTH_OK
services:
mon: 3 daemons, quorum virt-go-u20-50,virt-go-u20-51,virt-go-u20-52 (age 3m)
mgr: virt-go-u20-50.kkjhbk(active, since 5m), standbys: virt-go-u20-51.pxytsi
osd: 9 osds: 9 up (since 2m), 9 in (since 2m)
data:
pools: 1 pools, 256 pgs
objects: 0 objects, 0 B
usage: 58 MiB used, 90 GiB / 90 GiB avail
pgs: 256 active+clean반응형
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