Ceph RadosGW admin Ops

How to use it

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=$2
query3="&uid="
query2=admin/user
query4="&quota-type=user"
date=$(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

See quotas

#!/bin/bash
token=U2JCD4ZG4D1XJOI5XNF4 ## USER_TOKEN
secret=+IFgr7POzLWS0i3hQnC+dd3DOAZObHoY5NYm6m3b ## USER_SECRET
query=$1
query3="&uid="
query2=admin/user
query4="&quota-type=user"
date=$(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}&quota-type=user" -H "Host: 10.0.2.10"
##Change IPs with your own IPs

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

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

I hope this helps:

Regards, Eduardo.