add blog post on running rook on minikube on MAC M1 host

explaining how to use docker instead of qemu

Author: Anushruti Sharma <[email protected]>

Author: anushruti10116

src/en/news/blog/2025/rook-on-mac-with-docker/index.md

@@ -0,0 +1,212 @@
+---
+title: Rook Ceph Installation on Minikube for Mac M1 with Docker Driver
+date: 2024-05-07
+author: Anushruti Sharma
+image: ""
+tags:
+  - ceph
+  - rook
+  - docker
+  - mac
+---
+
+### Introduction
+
+This article explains how to set up a test Ceph cluster that runs on a
+single-node Minikube cluster.
+
+Docker has been chosen as the driver of the Minikube cluster on Mac M1 due to
+its reliability and simplicity. By choosing Docker, we avoid the complexities
+of virtualization, the difficulties of firewall configuration (bootpd), and the
+cost of x86 emulation.
+
+Docker runs ARM-native containers directly. This improves performance and
+compatibility and lowers cost, which is important in resource-intensive systems
+such as Rook and Ceph.
+
+#### Prerequisites
+
+- MAC M1 with macOS Sonoma 14
+- 2 CPUs or more
+- 2GB of free memory
+- 20GB of free disk space
+- Internet connection
+
+### Procedure
+
+- Install docker
+
+```
+brew install docker
+brew install colima
+colima start
+```
+
+- Install and start Minikube
+
+```
+brew install minikube
+minikube start --disk-size=20g --driver docker
+```
+
+- Install kubectl on your host machine
+
+```
+curl -LO "https://dl.k8s.io/release/v1.26.1/bin/darwin/arm64/kubectl"
+chmod +x kubectl
+sudo mv kubectl /usr/local/bin/
+```
+
+- Because the M1 Mac is ARM-based, it is not possible to attach /dev/sd*
+  devices or /dev/vd* devices. In this situation, we would normally default to
+  the use of /dev/loop devices, but Ceph does not permit the use of /dev/loop
+  devices. Instead, we will use the network block device /dev/nbd0.
+
+```
+minikube ssh
+sudo mkdir /mnt/disks
+
+# Create an empty file of size 10GB to mount disk as ceph osd
+
+sudo dd if=/dev/zero of=/mnt/disks/mydisk.img bs=1M count=10240
+sudo apt update
+sudo apt upgrade
+sudo apt-get install qemu-utils
+
+# List the nbd devices
+
+lsblk | grep nbd
+
+# If you are unable to see the nbd device, load the NBD (Network Block Device)
+kernel module.
+
+sudo modprobe nbd max_part=8
+
+# To bind nbd device to the file
+# Note: Please check there is no necessary data in /dev/nbdx, otherwise back up
+that data.
+
+sudo qemu-nbd --format raw -c /dev/nbd0 /mnt/disks/mydisk.img
+```
+
+- Verify the size of the nbd device by using lsblk
+
+```
+ lsblk | grep nbd0
+```
+
+- Clone the Rook repository to your host machine.
+
+```
+git clone https://github.com/rook/rook.git
+```
+
+- Move into the rook/deploy/examples/ directory.
+
+```
+cd rook/deploy/examples/
+```
+
+- Deploy the Rook operator.
+
+```
+kubectl create -f crds.yaml -f common.yaml -f operator.yaml
+```
+
+- Verify that the rook-ceph-operator is in a running state before proceeding.
+
+```
+kubectl get pods -n rook-ceph
+```
+
+- In cluster-test.yaml, make necessary changes to the storage section with the
+  device selection:
+
+```
+  storage:
+    useAllNodes: false
+    useAllDevices: false
+    nodes:
+    - name: minikube    # node name of minikube node
+      devices:
+      - name: /dev/nbd0   # device name being used
+    allowDeviceClassUpdate: true
+    allowOsdCrushWeightUpdate: false
+```
+
+- Create the Ceph cluster.
+
+```
+kubectl create -f cluster-test.yaml
+```
+
+- Verify that the cluster is running by checking the pods' status in the
+  rook-ceph namespace
+
+```
+kubectl -n rook-ceph get pod
+```
+
+- If the rook-ceph-mon, rook-ceph-mgr, or rook-ceph-osd pods are not created,
+  refer to [Ceph common
+issues](https://rook.io/docs/rook/latest/Troubleshooting/ceph-common-issues/)
+for more information.
+
+- To verify that the cluster is in a healthy state, connect to the Rook
+  Toolbox.
+
+```
+kubectl create -f toolbox.yaml
+```
+
+- Wait for the toolbox pod to download its container and then to arrive in a
+  running state:
+
+```
+kubectl -n rook-ceph rollout status deploy/rook-ceph-tools
+```
+
+- After the rook-ceph-tools pod is running, you can connect to it with the
+  following command:
+
+```
+kubectl -n rook-ceph exec -it deploy/rook-ceph-tools -- bash
+```
+
+- Run the `ceph status` command and ensure the following: 
+
+  - All mons are in quorum
+  - A mgr is active 
+  - At least 1 OSDs should be up and in
+  - If the health status is not HEALTH_OK, investigate the warnings or errors 
+
+```
+bash-5.1$ ceph -s
+  cluster:
+    id:     f89dd5e5-e2bb-44e8-8969-659f0fc9dc55
+    health: HEALTH_OK
+
+  services:
+    mon: 1 daemons, quorum a (age 7m)
+    mgr: a(active, since 5m)
+    osd: 1 osds: 1 up (since 6m), 1 in (since 6m)
+
+  data:
+    pools:   1 pools, 1 pgs
+    objects: 2 objects, 449 KiB
+    usage:   27 MiB used, 10 GiB / 10 GiB avail
+    pgs:     1 active+clean
+```
+
+If the cluster is not healthy, refer to the [Ceph common
+issues](https://rook.io/docs/rook/latest/Troubleshooting/ceph-common-issues/)
+for potential solutions.
+
+Footnote:
+
+Thanks Yuval Lifshitz for providing all the support and guidance to write this
+article.
+
+References:
+
+https://rook.io/docs/rook/latest/Getting-Started/quickstart/