k8s使用现有ceph集群

 

先决条件：

yaml文件参考：

https://github.com/kubernetes-retired/external-storage/tree/master/ceph/rbd/examples

https://github.com/kubernetes-retired/external-storage/tree/master/ceph/rbd/deploy

 

1. Ceph端操作

1.1   创建k8s ceph pool 与k8s用户

ceph --cluster ceph osd pool create kube 1024 1024

ceph --cluster ceph auth get-or-create client.k8s mon 'allow r' osd 'allow rwx pool=k8s'

 

1.2   获取k8s所需的secret

ceph auth get-key client.admin | base64

ceph auth get-key client.k8s | base64

 

2. K8S端操作

2.1  集群node节点安装ceph-common

（版本需要与ceph 集群版本一致）

yum install –y ceph-common

 

2.2  安装rbd-provisioner

 

Kubectl apply –f . /rbd-provisioner

 

2.2  将1.2生成的密钥替换到secret.yaml中

apiVersion: v1

kind: Secret

metadata:

  name: ceph-secret-admin

  namespace: default

type: "kubernetes.io/rbd"

data:

  # ceph auth get-key client.admin | base64

  key: QVFDL2hGaGZKOHRLTEJBQS9LYk9HMkVaaGkvZTRITGZkUXpEWlE9PQ==

---

apiVersion: v1

kind: Secret

metadata:

  name: ceph-secret

  namespace: default

type: "kubernetes.io/rbd"

data:

  # ceph auth add client.kube mon 'allow r' osd 'allow rwx pool=kube'

  # ceph auth get-key client.kube | base64

  key: QVFEYjExcGY0Qk9NQUJBQTdjS2xlL3pOZUFGQ1BURHFNOHR1amc9PQ==

 

 

2.3 创建k8s secret

 

Kubectl apply –f secret.yaml

 

2.4 创建storageclass

 

Kubctl apply –f class.yaml

 

2.5 创建测试pvc

 

Kubectl apply –f pvc.yaml

 

2.6 创建测试pod

 

Kubectl apply –f test-pod.yaml