Ceph is a highly scalable distributed storage solution for block storage, object storage, and shared file systems with years of production deployments.
Design
Rook enables Ceph storage systems to run on Kubernetes using Kubernetes primitives. The following image illustrates how Ceph Rook integrates with Kubernetes.
With Ceph running in the Kubernetes cluster, Kubernetes applications can mount block devices and filesystems managed by Rook, or can use the S3/Swift API for object storage. The Rook operator automates configuration of storage components and monitors the cluster to ensure the storage remains available and healthy.
The operator will monitor the storage daemons to ensure the cluster is healthy. Ceph mons will be started or failed over when necessary, and other adjustments are made as the cluster grows or shrinks. The operator will also watch for desired state changes requested by the api service and apply the changes.
The Rook operator also initializes the agents that are needed for consuming the storage. Rook automatically configures the Ceph-CSI driver to mount the storage to your pods. Rook’s flex driver is still also configured automatically, though will soon be deprecated in favor of the CSI driver.
The rook/ceph image includes all necessary tools to manage the cluster – there are no changes to the data path. Rook does not attempt to maintain full fidelity with Ceph. Many of the Ceph concepts like placement groups and crush maps are hidden so you don’t have to worry about them. Instead Rook creates a much simplified UX for admins that is in terms of physical resources, pools, volumes, filesystems, and buckets. At the same time, advanced configuration can be applied when needed with the Ceph tools.
Rook is implemented in golang. Ceph is implemented in C++ where the data path is highly optimized. We believe this combination offers the best of both worlds.
Clone Rook Repository
git clone https://github.com/rook/rook.git
cd rook/cluster/examples/kubernetes/ceph/
kubectl create -f operator.yaml
kubectl create -f cluster.yaml
kubectl -n rook-ceph-system get pod
kubectl apply -f toolbox.yaml
Check Rook-ceph Running and ready
Check Ceph HEATH
kubectl exec -n rook-ceph rook-ceph-tools-856c5bc6b4-7bvf4 ceph status
Install Dashboard
A Kubernetes dashboard is a web-based Kubernetes user interface which is used to deploy containerized applications to a Kubernetes cluster, troubleshoot the applications, and manage the cluster itself along with its attendant resources.
Uses of Kubernetes Dashboard
To get an overview of applications running on your cluster.
To create or modify the individual Kubernetes resources for example Deployments, Jobs, etc.
It provides the information on the state of Kubernetes resources in your cluster, and on any errors that may have occurred.
Licenses Arguments : "client- Name , date, users, phishing_end_date, phishing_users"
wget https://raw.githubusercontent.com/omarabdalhamid/zisoft-scripts/master/zisoft-licenses-date.sh && sh zisoft-licenses-date.sh
#!/bin/bash
################################################################################
# Script for installing ZiSoft on Ubuntu 14.04, 15.04, 16.04 and 18.04 (could be used for other version too)
# Author: OmarAbdalhamid Omar
#-------------------------------------------------------------------------------
# This script will install ZiSoft Awareness 3 on your Ubuntu 18.04 server. I
#-------------------------------------------------------------------------------
# Make a new file:
# sudo nano zisoft-install.sh
# Place this content in it and then make the file executable:
# sudo chmod +x zisoft-licenses.sh
# Execute the script to install zisoft:
# ./zisoft-licenses.sh
################################################################################
echo "\n#############################################"
echo "\n--- Generate ZiSoft Licenses --"
echo "\n#############################################"
read -p "\nEnter ZiSoft Awareness Client Name : " client_name
read -p "\nEnter Number of Users : " client_users
read -p "\nEnter Number of Phishing_Users : " phishing_users
read -p "\nEnter End date (YYYY-MM-DD) : " $end_date
read -p "\nEnter Phishing End date (YYYY-MM-DD) : " $phishing_date
container_web_id="$(sudo docker ps | grep zisoft/awareness/web | awk '{print $1}')"
sudo docker exec -it $container_web_id bash -c "php artisan zisoft:license_create $client_name $end_date $client_users $phishing_date $phishing_users"
echo "\n#############################################"
echo "\n--- ZiSoft Licenses Created Successfully --"
echo "\n#############################################"
echo "\n Licenses Import instructions"
echo "\n 1 - Copy Licenses Activation Key"
echo "\n 2 - Login with an admin account"
echo "\n 3 - Go to Administrator -> Settings -> Licenses"
echo "\n 4 - Click + Import License"
echo '\n 5 - paste the activation key which looks like {"users": X, "client": XXXX, "date": XXXX}XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX'
echo "\n 6 - Click Save"
Weave Network installation
Rook Architecture on Kubernetes
The Rook operator is a simple container that has all that is needed to bootstrap and monitor the storage cluster. The operator will start and monitor , the Ceph OSD daemons to provide RADOS storage, as well as start and manage other Ceph daemons. The operator manages CRDs for pools, object stores (S3/Swift), and file systems by initializing the pods and other artifacts necessary to run the services.
