k8s集成ceph
参见
·
ceph的配置
在ceph集群中执行如下命令：
[root@node1 ~]# ceph -s
cluster:
id: 365b02aa-db0c-11ec-b243-525400ce981f
health: HEALTH_OK
services:
mon: 3 daemons, quorum node1,node2,node3 (age 41h)
mgr: node2.dqryin(active, since 2d), standbys: node1.umzcuv
osd: 12 osds: 10 up (since 2d), 10 in (since 2d)
data:
pools: 2 pools, 33 pgs
objects: 1 objects, 19 B
usage: 10 GiB used, 4.9 TiB / 4.9 TiB avail
pgs: 33 active+clean
[root@node1 ~]# ceph mon stat
e11: 3 mons at {node1=[v2:172.70.10.181:3300/0,v1:172.70.10.181:6789/0],node2=[v2:172.70.10.182:3300/0,v1:172.70.10.182:6789/0],node3=[v2:172.70.10.183:3300/0,v1:172.70.10.183:6789/0]}, election epoch 100, leader 0 node1, quorum 0,1,2 node1,node2,node3
部署ceph-csi版本
涉及三方的版本：ceph（Octopus），kubernetes (v1.24.0)，ceph-sci版本
现阶段对应ceph csi与k8s版本对应如下：
| Ceph CSI Version | Container Orchestrator Name | Version Tested |
|---|---|---|
| v3.6.1 | Kubernetes | v1.21,v1.22,v1.23 |
| v3.6.0 | Kubernetes | v1.21,v1.22,v1.23 |
| v3.5.1 | Kubernetes | v1.21,v1.22,v1.23 |
| v3.5.0 | Kubernetes | v1.21,v1.22,v1.23 |
| v3.4.0 | Kubernetes | v1.20,v1.21,v1.22 |
目前使用的kubernetes版本是1.24，所以ceph-sci版本就使用最新版本3.6.1
目前使用的Ceph的版本是O版，ceph与Ceph CSI版本的对应关系，因为太多了，所以参照：ceph-sci插件官网
总上，部署ceph-csi V3.6.1版本就可以了
下载ceph-csi
下载ceph-csi 3.6.1的源码：下载地址
deploy目录下的rbd目录下的内容
[root@node1 ceph-csi-3.6.1]# tree -L 3 deploy
deploy
├── cephcsi
│ └── image
│ └── Dockerfile
├── cephfs
│ └── kubernetes
│ ├── csi-cephfsplugin-provisioner.yaml
│ ├── csi-cephfsplugin.yaml
│ ├── csi-config-map.yaml
│ ├── csidriver.yaml
│ ├── csi-nodeplugin-psp.yaml
│ ├── csi-nodeplugin-rbac.yaml
│ ├── csi-provisioner-psp.yaml
│ └── csi-provisioner-rbac.yaml
├── Makefile
├── nfs
│ └── kubernetes
│ ├── csi-config-map.yaml
│ ├── csidriver.yaml
│ ├── csi-nfsplugin-provisioner.yaml
│ ├── csi-nfsplugin.yaml
│ ├── csi-nodeplugin-psp.yaml
│ ├── csi-nodeplugin-rbac.yaml
│ ├── csi-provisioner-psp.yaml
│ └── csi-provisioner-rbac.yaml
├── rbd
│ └── kubernetes
│ ├── csi-config-map.yaml
│ ├── csidriver.yaml
│ ├── csi-nodeplugin-psp.yaml
│ ├── csi-nodeplugin-rbac.yaml
│ ├── csi-provisioner-psp.yaml
│ ├── csi-provisioner-rbac.yaml
│ ├── csi-rbdplugin-provisioner.yaml
│ └── csi-rbdplugin.yaml
└── scc.yaml
部署rbd
- 将ceph-csi/deploy/rbd/kubernetes/下的所有yaml文件拷贝到本地
- 创建csi-config-map.yaml
clusterID就是集群ID，ceph -s即可获得
monitors 在/var/lib/ceph/365b02aa-db0c-11ec-b243-525400ce981f/mon.node1/config中
---
apiVersion: v1
kind: ConfigMap
data:
config.json: |-
[
{
"clusterID": "365b02aa-db0c-11ec-b243-525400ce981f",
"monitors": [
"172.70.10.181:6789",
"172.70.10.182:6789",
"172.70.10.183:6789"
]
}
]
metadata:
name: ceph-csi-config
- 创建csi-kms-config-map.yaml,也可以不创建，但是需要将csi-rbdplugin-provisioner.yaml和csi-rbdplugin.yaml中kms有关内容注释掉
---
apiVersion: v1
kind: ConfigMap
data:
config.json: |-
{}
metadata:
name: ceph-csi-encryption-kms-config
- 创建ceph-config-map.yaml
ceph.conf就是复制ceph集群的配置文件，也就是/ect/ceph/ceph.conf文件中的对应内容
---
apiVersion: v1
kind: ConfigMap
data:
ceph.conf: |
[global]
fsid = 365b02aa-db0c-11ec-b243-525400ce981f
mon_host = [v2:172.70.10.181:3300/0,v1:172.70.10.181:6789/0] [v2:172.70.10.182:3300/0,v1:172.70.10.182:6789/0] [v2:172.70.10.183:3300/0,v1:172.70.10.183:6789/0]
#public_network = 172.70.10.0/24
auth_cluster_required = cephx
auth_service_required = cephx
auth_client_required = cephx
# keyring is a required key and its value should be empty
keyring: |
metadata:
name: ceph-config
- 创建csi-rbd-secret.yaml
获取admin的key
[root@node1 ~]# ceph auth get client.admin
exported keyring for client.admin
[client.admin]
key = AQDpR4xiIN/TJRAAIIv3DMRdm70RnsGs5/DW9g==
caps mds = "allow *"
caps mgr = "allow *"
caps mon = "allow *"
caps osd = "allow *"
创建csi-rbd-secret.yaml
---
apiVersion: v1
kind: Secret
metadata:
name: csi-rbd-secret
namespace: default
stringData:
userID: kubernetes
userKey: AQDpR4xiIN/TJRAAIIv3DMRdm70RnsGs5/DW9g==
encryptionPassphrase: test_passphrase
- 创建k8s_rbd块儿存储池
[root@node1 ~]# ceph osd pool create k8s_rbd
pool 'k8s_rbd' created
[root@node1 ~]# rbd pool init k8s_rbd
创建授权用户，实际上，可以使用admin账号
ceph auth get-or-create client.kubernetes mon 'profile rbd' osd 'profile rbd pool=k8s' mgr 'profile rbd pool=k8s'
- apply以上的所有文件
一共如下：
csi-config-map.yaml
csi-kms-config-map.yaml (可有可无)
ceph-config-map.yaml
csi-rbd-secret.yaml
- 创建csi-plugin
kubectl apply -f csi-provisioner-rbac.yaml
kubectl apply -f csi-nodeplugin-rbac.yaml
执行的时候，因为众所周知的原因，导致Google的镜像下载不下来，主要是
k8s.gcr.io/sig-storage/csi-provisioner:v3.1.0
k8s.gcr.io/sig-storage/csi-snapshotter:v5.0.1
k8s.gcr.io/sig-storage/csi-attacher:v3.4.0
k8s.gcr.io/sig-storage/csi-resizer:v1.4.0
k8s.gcr.io/sig-storage/csi-node-driver-registrar:v2.4.0
将k8s.gcr.io/sig-storage替换成registry.aliyuncs.com/google_containers
然后执行
kubectl apply -f csi-provisioner-rbac.yaml
kubectl apply -f csi-nodeplugin-rbac.yaml
因为kubernetes1.24.0去掉了docker引擎，所以执行完成后，镜像列表如下：
[root@node1 kubernetes]# crictl images
IMAGE TAG IMAGE ID SIZE
docker.io/calico/cni v3.23.1 90d97aa939bbf 111MB
docker.io/calico/node v3.23.1 fbfd04bbb7f47 76.6MB
docker.io/calico/pod2daemon-flexvol v3.23.1 01dda8bd1b91e 8.67MB
docker.io/library/nginx latest de2543b9436b7 56.7MB
quay.io/tigera/operator v1.27.1 02245817b973b 60.3MB
registry.aliyuncs.com/google_containers/coredns v1.8.6 a4ca41631cc7a 13.6MB
registry.aliyuncs.com/google_containers/etcd 3.5.3-0 aebe758cef4cd 102MB
registry.aliyuncs.com/google_containers/kube-apiserver v1.24.0 529072250ccc6 33.8MB
registry.aliyuncs.com/google_containers/kube-controller-manager v1.24.0 88784fb4ac2f6 31MB
registry.aliyuncs.com/google_containers/kube-proxy v1.24.0 77b49675beae1 39.5MB
registry.aliyuncs.com/google_containers/kube-scheduler v1.24.0 e3ed7dee73e93 15.5MB
registry.aliyuncs.com/google_containers/pause 3.6 6270bb605e12e 302kB
registry.aliyuncs.com/google_containers/pause 3.7 221177c6082a8 311kB
[root@node1 kubernetes]#
kubernetes1.24.0去掉了默认使用ipvs，不再使用iptables，所以，最好关闭iptables，以免出现下面的情况
[root@node5 ~]# crictl pods
POD ID CREATED STATE NAME NAMESPACE ATTEMPT RUNTIME
5d6dd91fd83e2 5 hours ago Ready csi-rbdplugin-provisioner-c6d7486dd-2jk5w default 0 (default)
354b1a8fd8b52 7 hours ago Ready csi-rbdplugin-wjpzd default 0 (default)
198dc5bf556df 5 days ago Ready calico-apiserver-6d4dd4bcf9-n8zgk calico-apiserver 0 (default)
244e05f6f9c67 5 days ago Ready calico-typha-b76b84965-bhsxn calico-system 0 (default)
4813ce009d806 5 days ago Ready calico-node-r6mv8 calico-system 0 (default)
2bca356d7a28a 5 days ago Ready kube-proxy-89lgc kube-system 0 (default)
[root@node5 ~]# crictl ps -a
CONTAINER IMAGE CREATED STATE NAME ATTEMPT POD ID
b798b5f047428 89f8fb0f77c15 4 hours ago Running csi-rbdplugin-controller 19 5d6dd91fd83e2
ed133e74dec67 89f8fb0f77c15 4 hours ago Exited csi-rbdplugin-controller 18 5d6dd91fd83e2
8ceafecc7d9f8 89f8fb0f77c15 5 hours ago Running liveness-prometheus 0 5d6dd91fd83e2
7ede68a34c5ab 89f8fb0f77c15 5 hours ago Running csi-rbdplugin 0 5d6dd91fd83e2
a3afb73c6ed92 551fd931edd5e 5 hours ago Running csi-resizer 0 5d6dd91fd83e2
753ded0a3a413 03e115718d258 5 hours ago Running csi-attacher 0 5d6dd91fd83e2
825eaf4f07fa8 53ae5b88a3380 5 hours ago Running csi-snapshotter 0 5d6dd91fd83e2
2abb44295907a c3dfb4b04796b 5 hours ago Running csi-provisioner 0 5d6dd91fd83e2
a9e6846498a1b 89f8fb0f77c15 7 hours ago Running liveness-prometheus 0 354b1a8fd8b52
39638d5c0961a 89f8fb0f77c15 7 hours ago Running csi-rbdplugin 0 354b1a8fd8b52
1b12e9d273f68 f45c8a305a0bb 7 hours ago Running driver-registrar 0 354b1a8fd8b52
797228d6b31ed 3bcf34f7d7d8d 5 days ago Running calico-apiserver 0 198dc5bf556df
dc4bae329b42f fbfd04bbb7f47 5 days ago Running calico-node 0 4813ce009d806
d5d0be4a3ef2f 90d97aa939bbf 5 days ago Exited install-cni 0 4813ce009d806
8c5853e9a0905 4ac3a9100f349 5 days ago Running calico-typha 0 244e05f6f9c67
12f2be66fd320 01dda8bd1b91e 5 days ago Exited flexvol-driver 0 4813ce009d806
f4663a0650d73 77b49675beae1 5 days ago Running kube-proxy 0 2bca356d7a28a
[root@node5 ~]# crictl logs ed133e74dec67
I0531 08:37:48.420227 1 cephcsi.go:180] Driver version: v3.6.1 and Git version: 1bd6297ecbdf11f1ebe6a4b20f8963b4bcebe13b
I0531 08:37:48.420443 1 cephcsi.go:229] Starting driver type: controller with name: rbd.csi.ceph.com
E0531 08:37:48.422369 1 controller.go:70] failed to create manager Get "https://10.96.0.1:443/api?timeout=32s": dial tcp 10.96.0.1:443: connect: no route to host
E0531 08:37:48.422450 1 cephcsi.go:296] Get "https://10.96.0.1:443/api?timeout=32s": dial tcp 10.96.0.1:443: connect: no route to host
关闭掉iptables服务即可解决上面的问题
- 创建StorageClass
创建cat storage.class.yaml
---
apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
name: csi-rbd-sc
provisioner: rbd.csi.ceph.com
parameters:
clusterID: 365b02aa-db0c-11ec-b243-525400ce981f
pool: k8s_rbd #之前创建pool的名称
imageFeatures: layering
csi.storage.k8s.io/provisioner-secret-name: csi-rbd-secret
csi.storage.k8s.io/provisioner-secret-namespace: default
csi.storage.k8s.io/controller-expand-secret-name: csi-rbd-secret
csi.storage.k8s.io/controller-expand-secret-namespace: default
csi.storage.k8s.io/node-stage-secret-name: csi-rbd-secret
csi.storage.k8s.io/node-stage-secret-namespace: default
csi.storage.k8s.io/fstype: ext4
reclaimPolicy: Delete
allowVolumeExpansion: true
mountOptions:
- discard
创建rbd-pvc.yaml
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: rbd-pvc
spec:
accessModes:
- ReadWriteOnce
resources:
requests:
storage: 10Gi
storageClassName: csi-rbd-sc
- 使用pvc
创建nginx.yaml
[root@node1 ~]# cat nginx.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: my-nginx
spec:
replicas: 1
selector:
matchLabels:
app: nginx
template:
metadata:
labels:
app: nginx
spec:
containers:
- name: nginx
image: nginx:latest
ports:
- containerPort: 80
volumeMounts:
- name: rbd
mountPath: /usr/share/rbd
volumes:
- name: rbd
persistentVolumeClaim: #指定pvc
claimName: rbd-pvc
---
apiVersion: v1
kind: Service
metadata:
name: ngx-service
labels:
app: nginx
spec:
type: NodePort
selector:
app: nginx
ports:
- port: 80
targetPort: 80
nodePort: 32500
部署文件系统
- 在ceph集群上面创建文件系统
[root@node1 ~]# ceph osd pool create cephfs_metadata 32 32
pool 'cephfs_metadata' created
[root@node1 ~]# ceph osd pool create cephfs_data 32 32
pool 'cephfs_data' created
[root@node1 ~]# ceph fs new cephfs cephfs_metadata cephfs_data
new fs with metadata pool 3 and data pool 4
[root@node1 ~]# ceph -s
cluster:
id: 365b02aa-db0c-11ec-b243-525400ce981f
health: HEALTH_ERR
1 filesystem is offline
1 filesystem is online with fewer MDS than max_mds
services:
mon: 3 daemons, quorum node1,node2,node3 (age 2d)
mgr: node2.dqryin(active, since 6d), standbys: node1.umzcuv
mds: cephfs:0
osd: 12 osds: 10 up (since 6d), 10 in (since 6d)
data:
pools: 4 pools, 97 pgs
objects: 23 objects, 15 MiB
usage: 10 GiB used, 4.9 TiB / 4.9 TiB avail
pgs: 97 active+clean
[root@node1 ~]# ceph auth get client.admin
exported keyring for client.admin
[client.admin]
key = AQDpR4xiIN/TJRAAIIv3DMRdm70RnsGs5/DW9g==
caps mds = "allow *"
caps mgr = "allow *"
caps mon = "allow *"
caps osd = "allow *"
[root@node1 ~]# ceph mon stat
e11: 3 mons at {node1=[v2:172.70.10.181:3300/0,v1:172.70.10.181:6789/0],node2=[v2:172.70.10.182:3300/0,v1:172.70.10.182:6789/0],node3=[v2:172.70.10.183:3300/0,v1:172.70.10.183:6789/0]}, election epoch 104, leader 0 node1, quorum 0,1,2 node1,node2,node3
[root@node1 mon.node1]# cat config
# minimal ceph.conf for 365b02aa-db0c-11ec-b243-525400ce981f
[global]
fsid = 365b02aa-db0c-11ec-b243-525400ce981f
mon_host = [v2:172.70.10.181:3300/0,v1:172.70.10.181:6789/0] [v2:172.70.10.182:3300/0,v1:172.70.10.182:6789/0] [v2:172.70.10.183:3300/0,v1:172.70.10.183:6789/0]
# 下面的这一步不能少，cephfs一定要启动mds服务，才能正常对外提供服务，一般来说，这步操作在cephadm shell命令行下执行比较好
[root@node1 kubernetes]# cephadm shell
Inferring fsid 365b02aa-db0c-11ec-b243-525400ce981f
Inferring config /var/lib/ceph/365b02aa-db0c-11ec-b243-525400ce981f/mon.node1/config
Using recent ceph image quay.io/ceph/ceph@sha256:f2822b57d72d07e6352962dc830d2fa93dd8558b725e2468ec0d07af7b14c95d
[ceph: root@node1 /]# ceph orch apply mds cephfs --placement="3 node1 node2 node3"
Scheduled mds.cephfs update...
- 下载下来之后进入 deploy/cephfs/kubernetes
- 使用rbd创建过的ceph-csi-config ConfigMap
- 安装
vim中替换掉csi-cephfsplugin-provisioner.yaml和csi-cephfsplugin.yaml中的
/k8s.gcr.io/sig-storage/registry.aliyuncs.com/google_containers/g
kubectl apply -f deploy/rbd/kubernetes/csi-provisioner-rbac.yaml
kubectl apply -f deploy/rbd/kubernetes/csi-nodeplugin-rbac.yaml
kubectl apply -f deploy/rbd/kubernetes/csi-cephfsplugin-provisioner.yaml
kubectl apply -f deploy/rbd/kubernetes/csi-cephfsplugin.yaml
- 的
kubectl apply -f deploy/rbd/kubernetes/csi-provisioner-rbac.yaml
kubectl apply -f deploy/rbd/kubernetes/csi-nodeplugin-rbac.yaml
kubectl apply -f deploy/rbd/kubernetes/csi-cephfsplugin-provisioner.yaml
kubectl apply -f deploy/rbd/kubernetes/csi-cephfsplugin.yaml - 切个目录examples/cephfs/开始部署客户端
[root@node1 fs]# cat secret.yaml
---
apiVersion: v1
kind: Secret
metadata:
name: csi-cephfs-secret
namespace: default
stringData:
# Required for statically provisioned volumes
userID: admin
userKey: AQDpR4xiIN/TJRAAIIv3DMRdm70RnsGs5/DW9g==
# Required for dynamically provisioned volumes
adminID: admin
adminKey: AQDpR4xiIN/TJRAAIIv3DMRdm70RnsGs5/DW9g==
[root@node1 fs]# kubectl apply -f secret.yaml
secret/csi-cephfs-secret created
[root@node1 fs]# k get secret
NAME TYPE DATA AGE
csi-cephfs-secret Opaque 4 11s
csi-rbd-secret Opaque 2 28h
- 遇到的问题
[root@node1 ~]# k get pvc
NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS AGE
fs-pvc Pending csi-cephfs-sc 27m
rbd-pvc Bound pvc-80d393f0-8664-4d70-8e0d-d7a0550d4417 10Gi RWO csi-rbd-sc 7h22m
[root@node1 ~]# kd pvc/fs-pvc
Name: fs-pvc
Namespace: default
StorageClass: csi-cephfs-sc
Status: Pending
Volume:
Labels: <none>
Annotations: volume.beta.kubernetes.io/storage-provisioner: cephfs.csi.ceph.com
volume.kubernetes.io/storage-provisioner: cephfs.csi.ceph.com
Finalizers: [kubernetes.io/pvc-protection]
Capacity:
Access Modes:
VolumeMode: Filesystem
Used By: <none>
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal Provisioning 3m55s (x14 over 27m) cephfs.csi.ceph.com_csi-cephfsplugin-provisioner-794b8d9f95-jwmw4_ac816be6-acdb-4447-a41a-e034c43d1b2b External provisioner is provisioning volume for claim "default/fs-pvc"
Warning ProvisioningFailed 3m55s (x4 over 24m) cephfs.csi.ceph.com_csi-cephfsplugin-provisioner-794b8d9f95-jwmw4_ac816be6-acdb-4447-a41a-e034c43d1b2b failed to provision volume with StorageClass "csi-cephfs-sc": rpc error: code = DeadlineExceeded desc = context deadline exceeded
Warning ProvisioningFailed 3m55s (x10 over 24m) cephfs.csi.ceph.com_csi-cephfsplugin-provisioner-794b8d9f95-jwmw4_ac816be6-acdb-4447-a41a-e034c43d1b2b failed to provision volume with StorageClass "csi-cephfs-sc": rpc error: code = Aborted desc = an operation with the given Volume ID pvc-aaed8aa7-c202-44c2-8def-f3479ea27ffe already exists
Normal ExternalProvisioning 2m26s (x102 over 27m) persistentvolume-controller waiting for a volume to be created, either by external provisioner "cephfs.csi.ceph.com" or manually created by system administrator
# 到ceph集群中，查看集群健康状态
[root@node1 fs]# ceph health
HEALTH_ERR 1 filesystem is offline; 1 filesystem is online with fewer MDS than max_mds
# 该问题出现是因为cephfs没有启动mds，下面启动mds便可回复正常
[root@node1 kubernetes]# cephadm shell
Inferring fsid 365b02aa-db0c-11ec-b243-525400ce981f
Inferring config /var/lib/ceph/365b02aa-db0c-11ec-b243-525400ce981f/mon.node1/config
Using recent ceph image quay.io/ceph/ceph@sha256:f2822b57d72d07e6352962dc830d2fa93dd8558b725e2468ec0d07af7b14c95d
[ceph: root@node1 /]# ceph orch apply mds cephfs --placement="3 node1 node2 node3"
Scheduled mds.cephfs update...
#回到k8s环境中
[root@node1 ~]# k delete pvc/fs-pvc
persistentvolumeclaim "fs-pvc" deleted
[root@node1 fs]# k apply -f fs-pvc.yaml
persistentvolumeclaim/fs-pvc created
[root@node1 fs]# k get pvc
NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS AGE
fs-pvc Bound pvc-01d43d98-3375-4642-9bd2-b4818ce59f77 11Gi RWX csi-cephfs-sc 6s
rbd-pvc Bound pvc-80d393f0-8664-4d70-8e0d-d7a0550d4417 10Gi RWO csi-rbd-sc 7h23m
- 挂载cephfs
[root@node1 fs]# cat fs-nginx.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: fs-nginx
spec:
replicas: 3
selector:
matchLabels:
app: nginx
template:
metadata:
labels:
app: nginx
spec:
containers:
- name: nginx
image: nginx:latest
ports:
- containerPort: 80
volumeMounts:
- name: fs
mountPath: /usr/share/rbd
volumes:
- name: fs
persistentVolumeClaim: #指定pvc
claimName: fs-pvc
---
apiVersion: v1
kind: Service
metadata:
name: fs-nginx-service
labels:
app: nginx
spec:
type: NodePort
selector:
app: nginx
ports:
- port: 80
targetPort: 80
nodePort: 32511
pod状态
[root@node1 fs]# pods
NAME READY STATUS RESTARTS AGE
csi-cephfsplugin-2wh9v 3/3 Running 0 85m
csi-cephfsplugin-dwswx 3/3 Running 0 85m
csi-cephfsplugin-n5js6 3/3 Running 0 85m
csi-cephfsplugin-provisioner-794b8d9f95-jwmw4 6/6 Running 0 85m
csi-cephfsplugin-provisioner-794b8d9f95-rprrp 6/6 Running 0 85m
csi-cephfsplugin-provisioner-794b8d9f95-sd848 6/6 Running 0 85m
csi-rbdplugin-provisioner-c6d7486dd-2jk5w 7/7 Running 19 (9h ago) 10h
csi-rbdplugin-provisioner-c6d7486dd-mk68w 7/7 Running 2 (8h ago) 12h
csi-rbdplugin-provisioner-c6d7486dd-qlgkf 7/7 Running 0 12h
csi-rbdplugin-tthrg 3/3 Running 0 12h
csi-rbdplugin-vtlbs 3/3 Running 0 12h
csi-rbdplugin-wjpzd 3/3 Running 0 12h
fs-nginx-6d86d5d84d-77gvt 1/1 Running 0 4m16s
fs-nginx-6d86d5d84d-b9twd 1/1 Running 0 4m16s
fs-nginx-6d86d5d84d-s4v85 1/1 Running 0 4m16s
my-nginx-549466b985-nzkxl 1/1 Running 0 7h29m
进入到其中一个pod中，在共享的目录下创建文件fs.txt
[root@node1 fs]# k exec -it pod/fs-nginx-6d86d5d84d-77gvt -- /bin/bash
root@fs-nginx-6d86d5d84d-77gvt:/# df -h
Filesystem Size Used Avail Use% Mounted on
overlay 50G 15G 36G 30% /
tmpfs 64M 0 64M 0% /dev
tmpfs 7.9G 0 7.9G 0% /sys/fs/cgroup
shm 64M 0 64M 0% /dev/shm
/dev/mapper/centos-root 50G 15G 36G 30% /etc/hosts
172.70.10.181:6789,172.70.10.182:6789,172.70.10.183:6789:/volumes/csi/csi-vol-194d8e9e-e108-11ec-a020-26b729f874ac/372a597b-867d-40e0-b246-6537208c8a9f 11G 0 11G 0% /usr/share/rbd
tmpfs 16G 12K 16G 1% /run/secrets/kubernetes.io/serviceaccount
tmpfs 7.9G 0 7.9G 0% /proc/acpi
tmpfs 7.9G 0 7.9G 0% /proc/scsi
tmpfs 7.9G 0 7.9G 0% /sys/firmware
root@fs-nginx-6d86d5d84d-77gvt:/# cd /usr/share/rbd
root@fs-nginx-6d86d5d84d-77gvt:/usr/share/rbd# ls
root@fs-nginx-6d86d5d84d-77gvt:/usr/share/rbd# echo "cephfs" > fs.txt
root@fs-nginx-6d86d5d84d-77gvt:/usr/share/rbd# cat fs.txt
cephfs
root@fs-nginx-6d86d5d84d-77gvt:/usr/share/rbd# exit
exit
进入到另一个pod中，可以看到共享目录下同样有文件fs.txt
[root@node1 fs]# k exec -it pod/fs-nginx-6d86d5d84d-b9twd -- /bin/bash
root@fs-nginx-6d86d5d84d-b9twd:/# cd /usr/share/rbd/
root@fs-nginx-6d86d5d84d-b9twd:/usr/share/rbd# ls
fs.txt
root@fs-nginx-6d86d5d84d-b9twd:/usr/share/rbd# cat fs.txt
cephfs
root@fs-nginx-6d86d5d84d-b9twd:/usr/share/rbd# exit
exit
至此，整合rbd和cephfs的过程结束。
对象存储
对于ceph对象存储，本身ceph提供的是基于七层协议的接口，直接通过对象存储s3协议访问即可，不需要通过csi进行集成。
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