Rook

https://rook.io/images/rook-logo.svg

色々あったけど現在はCeph Operatorになった

code:bash

$ kubectl apply -f common.yaml -f crds.yaml -f operator.yaml

$ kubectl get pod -n rook-ceph

NAME READY STATUS RESTARTS AGE

rook-ceph-operator-b89545b4f-w6zvw 1/1 Running 0 58s

single nodeなのでoverrideでosd size 1に(推奨は3)

code:bash

$ cat rook-config-override.yaml

kind: ConfigMap

apiVersion: v1

metadata:

name: rook-config-override

namespace: rook-ceph

data:

config: |

osd pool default size = 1

$ kubectl apply -f rook-config-override.yaml

code:yaml.patch

diff --git a/deploy/examples/cluster-on-pvc.yaml b/deploy/examples/cluster-on-pvc.yaml

index 388bfe1f4..f3ea2f7a4 100644

--- a/deploy/examples/cluster-on-pvc.yaml

+++ b/deploy/examples/cluster-on-pvc.yaml

@@ -16,7 +16,7 @@ spec:

mon:

# Set the number of mons to be started. Generally recommended to be 3.

# For highest availability, an odd number of mons should be specified.

- count: 3

+ count: 1

# The mons should be on unique nodes. For production, at least 3 nodes are recommended for this reason.

# Mons should only be allowed on the same node for test environments where data loss is acceptable.

allowMultiplePerNode: false

@@ -28,10 +28,10 @@ spec:

# size appropriate for monitor data will be used.

volumeClaimTemplate:

spec:

- storageClassName: gp2

+ storageClassName: topolvm-provisioner

resources:

requests:

- storage: 10Gi

+ storage: 10Mi

cephVersion:

image: quay.io/ceph/ceph:v16.2.7

allowUnsupported: false

@@ -51,7 +51,7 @@ spec:

storageClassDeviceSets:

- name: set1

# The number of OSDs to create from this device set

- count: 3

+ count: 1

# IMPORTANT: If volumes specified by the storageClassName are not portable across nodes

# this needs to be set to false. For example, if using the local storage provisioner

# this should be false.

@@ -81,33 +81,33 @@ spec:

operator: In

values:

- rook-ceph-osd

- preparePlacement:

- podAntiAffinity:

- preferredDuringSchedulingIgnoredDuringExecution:

- - weight: 100

- podAffinityTerm:

- labelSelector:

- matchExpressions:

- - key: app

- operator: In

- values:

- - rook-ceph-osd

- - key: app

- operator: In

- values:

- - rook-ceph-osd-prepare

- topologyKey: kubernetes.io/hostname

- topologySpreadConstraints:

- - maxSkew: 1

- # IMPORTANT: If you don't have zone labels, change this to another key such as kubernetes.io/hostname

- topologyKey: topology.kubernetes.io/zone

- whenUnsatisfiable: DoNotSchedule

- labelSelector:

- matchExpressions:

- - key: app

- operator: In

- values:

- - rook-ceph-osd-prepare

resources:

# These are the OSD daemon limits. For OSD prepare limits, see the separate section below for "prepareosd" resources

# limits:

@@ -125,9 +125,9 @@ spec:

spec:

resources:

requests:

- storage: 10Gi

+ storage: 10Mi

# IMPORTANT: Change the storage class depending on your environment

- storageClassName: gp2

+ storageClassName: topolvm-provisioner

volumeMode: Block

accessModes:

- ReadWriteOnce

$ kubectl apply -f cluster-on-pvc.yaml

single nodeなのでstorageclassはtestのやつ

code:bash

$ kubectl apply -f csi/rbd/storageclass-test.yaml

code:bash.yaml

$ cat podpvc.yaml

kind: PersistentVolumeClaim

apiVersion: v1

metadata:

name: rook-pvc

spec:

accessModes:

- ReadWriteOnce

resources:

requests:

storage: 1Gi

storageClassName: rook-ceph-block

---

apiVersion: v1

kind: Pod

metadata:

name: my-pod

labels:

app.kubernetes.io/name: my-pod

spec:

containers:

- name: ubuntu

image: quay.io/cybozu/ubuntu:20.04

volumeMounts:

- mountPath: /test1

name: my-volume

volumes:

- name: my-volume

persistentVolumeClaim:

claimName: rook-pvc

OSDがUPするのに少し時間がかかるので待つと出来てる、おわり

dashboardも欲しければやっとく ドメインは適宜変更

code:bash

$ kubectl apply -f dashboard-ingress-https.yaml

参考