Viewing CRUSH rules

Understand how to view CRUSH rules.

Viewing CRUSH rules using the curl command

On the command line, run the following command:
curl --silent --user USER 'https://CEPH_MANAGER:8080/api/crush_rule'
Replace:
  • USER with the username.
  • CEPH_MANAGER with the IP address or short host name of the node with the active ceph-mgr instance.
Enter the user’s password when prompted.
Note: If using a self-signed certificate, use the --insecure option.
curl --silent --insecure --user USER 'https://CEPH_MANAGER:8080/api/crush_rule'

Viewing CRUSH rules using Python

In the Python interpreter, enter the following:
$ python
>> import requests
>> result = requests.get('https://CEPH_MANAGER:8080/api/crush_rule', auth=("USER", "PASSWORD"))
>> print result.json()
Replace:
  • CEPH_MANAGER with the IP address or short hostname of the node with the active ceph-mgr instance.
  • USER with the username.
  • PASSWORD with the user’s password.
Note: If using a self-signed certificate, use verify=False.
$ python
>> import requests
>> result = requests.get('https://CEPH_MANAGER:8080/api/crush_rule', auth=("USER", "PASSWORD"), verify=False)
>> print result.json()

Viewing CRUSH rules using a web browser

In the web browser, go to https://CEPH_MANAGER:8080/api/crush_rule.

Replace CEPH_MANAGER with the IP address or short hostname of the node with the active ceph-mgr instance.

Enter the username and password when prompted.