Admin | OpenStack stuff

Ceph RadosGW Admin Ops, how to use it

Posted under OpenStack on September 8th, 2015 by Editor

Using RadosGW admin ops for the first time, can be a real headache , for this purpose i have made this post, where you will understand how to use this API.
Let’s start:

For issue a request through admin ops, you need to have a signature, this signature is make it signing a header.
The header must to be composed by the current date, the request type(GET/PUT/POST/DELETE) and the request itself.
This header must be signed by SSL including the admin ops secret on this signature.
Now , you can make a request.
Sometimes, the time is not the same as the radosgw node expect, you can hack on it changing the date=$(date) value with:
If your host has two hours more than the radosgw node, substract this two hours under $(( 10#$i-2)) variable, where 2 is the two hours to substract.

date=$(for i in $(date "+%H") ; do date "+%a, %d %b %Y $(( 10#$i-2 )):%M:%S +0000" ; done)

Examples:

Create a user named egonzalez:

#!/bin/bash
token=U2JCD4ZG4D1XJOI5XNF4 ## USER_TOKEN
secret=+IFgr7POzLWS0i3hQnC+dd3DOAZObHoY5NYm6m3b ## USER_SECRET
query=$1
name=$2
query3="&uid="
query2=admin/user
query4=""a-type=user"
date=$(date)
header="PUT\n\n\n${date}\n/${query2}"
sig=$(echo -en ${header} | openssl sha1 -hmac ${secret} -binary | base64)
curl -v -H "Date: ${date}" -H "Authorization: AWS ${token}:${sig}" -L -X PUT "http://10.0.2.10/${query2}?format=json${query3}${query}&display-name=${name}" -H "Host: 10.0.2.10"
##Change IPs with your own IPs

Output:

[ceph@adminnode scripts]$ sh createUser.sh egonzalez EgonzalezDescription
{"user_id":"egonzalez","display_name":"EgonzalezDescription","email":"","suspended":0,"max_buckets":1000,"subusers":[],"keys":[{"user":"egonzalez","access_key":"24FUKCWD6BL9T08DQ2JA","secret_key":"mEQdhcrsqOy7q6Snvu8B5d5A2Ek9OezJH+khwYvX"}],"swift_keys":[],"caps":[]}

See egonzalez quotas

#!/bin/bash
token=U2JCD4ZG4D1XJOI5XNF4 ## USER_TOKEN
secret=+IFgr7POzLWS0i3hQnC+dd3DOAZObHoY5NYm6m3b ## USER_SECRET
query=$1
query3="&uid="
query2=admin/user
query4=""a-type=user"
date=$(date)
header="GET\n\n\n${date}\n/${query2}"
sig=$(echo -en ${header} | openssl sha1 -hmac ${secret} -binary | base64)
curl -v -H "Date: ${date}" -H "Authorization: AWS ${token}:${sig}" -L -X GET "http://10.0.2.10/${query2}?quota${query3}${query}"a-type=user" -H "Host: 10.0.2.10"
##Change IPs with your own IPs

Output:

[ceph@adminnode scripts]$ sh getuserquota.sh egonzalez

{"enabled": true,"max_size_kb":1000,"max_objects":1000}Status: 200 OK

See egonzalez user information.

#!/bin/bash
token=U2JCD4ZG4D1XJOI5XNF4 ## USER_TOKEN
secret=+IFgr7POzLWS0i3hQnC+dd3DOAZObHoY5NYm6m3b ## USER_SECRET
query=$1
query3="&uid="
query2=admin/user
date=$(date)
header="GET\n\n\n${date}\n/${query2}"
sig=$(echo -en ${header} | openssl sha1 -hmac ${secret} -binary | base64)
curl -v -H "Date: ${date}" -H "Authorization: AWS ${token}:${sig}" -L -X GET "http://10.0.2.10/${query2}?format=json${query3}${query}" -H "Host: 10.0.2.10"
##Change IPs with your own IPs

Output:

[ceph@adminnode scripts]$ sh userInfo.sh egonzalez
{"user_id":"egonzalez","display_name":"EgonzalezDescription","email":"","suspended":0,"max_buckets":1000,"subusers":[],"keys":[{"user":"egonzalez","access_key":"24FUKCWD6BL9T08DQ2JA","secret_key":"mEQdhcrsqOy7q6Snvu8B5d5A2Ek9OezJH+khwYvX"}],"swift_keys":[],"caps":[]}

When you really understand how admin ops works, is not as dificult to use it, just search at the official documentation and modify the desired values.

I hope this helps:

Regards, Eduardo.