Ceph Nautilus : How to enable the Ceph MGR dashboard - ceph

Question

I have recently installed Ceph Nautilus.
ceph version 14.2.1 (d555a9489eb35f84f2e1ef49b77e19da9d113972) nautilus (stable)
I cannot see any "dashboard" module (neither in enabled nor in disabled state). I an checking through "ceph mgr module ls"
If I try to enable it, I get following error.
[user#system mydir]$ ceph mgr module enable dashboard
Error ENOENT: all mgr daemons do not support module 'dashboard', pass --force to force enablement
How can I enable the dashboard module?

Answer 1

Install the appropriate package from the below link
# rpm -Uvh http://download.ceph.com/rpm-nautilus/el7/noarch/ceph-mgr-dashboard-14.2.1-0.el7.noarch.rpm
Note: it will ask for few dependencies, install with yum/apt package manager and then execute the above command.
Enable the ceph mgr dashboard
# ceph mgr module enable dashboard
# ceph mgr module ls
Create self-signed certificate
# sudo ceph dashboard create-self-signed-cert
Self-signed certificate created
Create a user for Dashboard
Example: [ceph dashboard ac-user-create (username) (password) administrator]
# ceph dashboard ac-user-create cent password administrator
{"username": "cent", "lastUpdate": 1560292901, "name": null, "roles": ["administrator"], "password": "$2b$12$w60gItcbKd6PULNYI9McmOBMiAzFoKJ9T9XGva8vC6dxIyqMsE4kK", "email": null}
# ceph mgr services
{
"dashboard": "https://ceph-mgr:8443/"
}
Note: Here you can access with IP address of ceph-mgr node, instead of hostname.
Make sure firewall port is open
# firewall-cmd --add-port=8443/tcp --permanent
# firewall-cmd --reload
Open the dashboard url in any browser
https://ceph-mgr:8443 or https://192.168.1.10:8443
Enter the username: cent and password: password
Here you go...