mirror of
https://github.com/ceph/ceph
synced 2024-12-30 07:23:11 +00:00
278 lines
7.7 KiB
ReStructuredText
278 lines
7.7 KiB
ReStructuredText
============================
|
|
Object Storage Quick Start
|
|
============================
|
|
|
|
To use this guide, you must have executed the procedures in the `5-minute
|
|
Quick Start`_ guide first.
|
|
|
|
|
|
Install Apache and FastCGI
|
|
==========================
|
|
|
|
The Ceph object storage gateway runs on Apache and FastCGI.
|
|
Install them on the server machine. Use the following procedure:
|
|
|
|
#. Install Apache and FastCGI on the server machine. ::
|
|
|
|
sudo apt-get update && sudo apt-get install apache2 libapache2-mod-fastcgi
|
|
|
|
#. Enable the URL rewrite modules for Apache and FastCGI. ::
|
|
|
|
sudo a2enmod rewrite
|
|
sudo a2enmod fastcgi
|
|
|
|
#. Add a line for the ``ServerName`` in the ``/etc/apache2/httpd.conf`` file.
|
|
Provide the fully qualified domain name of the server machine. ::
|
|
|
|
ServerName {fqdn}
|
|
|
|
#. Restart Apache so that the foregoing changes take effect. ::
|
|
|
|
sudo service apache2 restart
|
|
|
|
|
|
Install RADOS Gateway
|
|
=====================
|
|
|
|
Once you have installed and configured Apache and FastCGI, you may install
|
|
Ceph's RADOS Gateway. ::
|
|
|
|
sudo apt-get install radosgw
|
|
|
|
For details on the preceding steps, see `RADOS Gateway Manual Install`_.
|
|
|
|
|
|
Modify the Ceph Configuration File
|
|
==================================
|
|
|
|
On the server machine, perform the following steps:
|
|
|
|
#. Open the Ceph configuration file. ::
|
|
|
|
cd /etc/ceph
|
|
vim ceph.conf
|
|
|
|
#. Add the following settings to the Ceph configuration file::
|
|
|
|
[client.radosgw.gateway]
|
|
host = {host-name}
|
|
keyring = /etc/ceph/keyring.radosgw.gateway
|
|
rgw socket path = /tmp/radosgw.sock
|
|
log file = /var/log/ceph/radosgw.log
|
|
|
|
#. Go to the client machine and copy the configuration file from the server
|
|
machine to ``/etc/ceph/ceph.conf`` on your client machine. ::
|
|
|
|
sudo scp {user}@{cluster-machine}:/etc/ceph/ceph.conf /etc/ceph/ceph.conf
|
|
|
|
.. tip:: Ensure the ``ceph.conf`` file has appropriate permissions set
|
|
(e.g. ``chmod 644``) on your client machine.
|
|
|
|
|
|
Create a Data Directory
|
|
=======================
|
|
|
|
Create a data directory on the cluster server for the instance of ``radosgw``.
|
|
|
|
::
|
|
|
|
sudo mkdir -p /var/lib/ceph/radosgw/ceph-radosgw.gateway
|
|
|
|
|
|
Create a Gateway Configuration File
|
|
===================================
|
|
|
|
The example configuration file will configure the gateway to operate with the
|
|
Apache FastCGI module, a rewrite rule for OpenStack Swift, and paths for the log
|
|
files. To add a configuration file for the Ceph Gateway, we suggest copying the
|
|
contents of the example file below to an editor. Then, follow the steps below to
|
|
modify it.
|
|
|
|
.. literalinclude:: rgw.conf
|
|
:language: ini
|
|
|
|
#. Replace the ``{fqdn}`` entry with the fully-qualified domain name of the
|
|
server server.
|
|
|
|
#. Replace the ``{email.address}`` entry with the email address for the
|
|
server administrator.
|
|
|
|
#. Save the contents to the ``/etc/apache2/sites-available`` directory on
|
|
the server machine.
|
|
|
|
#. Enable the site for ``rgw.conf``. ::
|
|
|
|
sudo a2ensite rgw.conf
|
|
|
|
#. Disable the default site. ::
|
|
|
|
sudo a2dissite default
|
|
|
|
See `Create rgw.conf`_ for additional details.
|
|
|
|
|
|
Add a FastCGI Script
|
|
====================
|
|
|
|
FastCGI requires a script for the S3-compatible interface. To create the
|
|
script, execute the following procedures on the server machine.
|
|
|
|
#. Go to the ``/var/www`` directory. ::
|
|
|
|
cd /var/www
|
|
|
|
#. Open an editor with the file name ``s3gw.fcgi``. ::
|
|
|
|
sudo vim s3gw.fcgi
|
|
|
|
#. Copy the following into the editor. ::
|
|
|
|
#!/bin/sh
|
|
exec /usr/bin/radosgw -c /etc/ceph/ceph.conf -n client.radosgw.gateway
|
|
|
|
#. Save the file.
|
|
|
|
#. Change the permissions on the file so that it is executable. ::
|
|
|
|
sudo chmod +x s3gw.fcgi
|
|
|
|
|
|
Generate a Keyring and Key
|
|
==========================
|
|
|
|
Perform the following steps on the server machine.
|
|
|
|
#. Create a keyring for the RADOS Gateway. ::
|
|
|
|
sudo ceph-authtool --create-keyring /etc/ceph/keyring.radosgw.gateway
|
|
sudo chmod +r /etc/ceph/keyring.radosgw.gateway
|
|
|
|
#. Create a key for the RADOS Gateway to authenticate with the cluster. ::
|
|
|
|
sudo ceph-authtool /etc/ceph/keyring.radosgw.gateway -n client.radosgw.gateway --gen-key
|
|
sudo ceph-authtool -n client.radosgw.gateway --cap osd 'allow rwx' --cap mon 'allow r' /etc/ceph/keyring.radosgw.gateway
|
|
|
|
#. Add the key to the Ceph keyring. ::
|
|
|
|
sudo ceph -k /etc/ceph/ceph.keyring auth add client.radosgw.gateway -i /etc/ceph/keyring.radosgw.gateway
|
|
|
|
|
|
Create a User
|
|
=============
|
|
|
|
To use the Gateway, you must create a Gateway user. First, create a gateway user
|
|
for the S3-compatible interface; then, create a subuser for the
|
|
Swift-compatible interface.
|
|
|
|
Gateway (S3) User
|
|
-----------------
|
|
|
|
First, create a Gateway user for the S3-compatible interface. ::
|
|
|
|
sudo radosgw-admin user create --uid="{username}" --display-name="{Display Name}"
|
|
|
|
For example::
|
|
|
|
radosgw-admin user create --uid=johndoe --display-name="John Doe" --email=john@example.com
|
|
|
|
.. code-block:: javascript
|
|
|
|
{ "user_id": "johndoe",
|
|
"rados_uid": 0,
|
|
"display_name": "John Doe",
|
|
"email": "john@example.com",
|
|
"suspended": 0,
|
|
"subusers": [],
|
|
"keys": [
|
|
{ "user": "johndoe",
|
|
"access_key": "QFAMEDSJP5DEKJO0DDXY",
|
|
"secret_key": "iaSFLDVvDdQt6lkNzHyW4fPLZugBAI1g17LO0+87"}],
|
|
"swift_keys": []
|
|
}
|
|
|
|
Creating a user creates an access_key and secret_key entry for use with any S3
|
|
API-compatible client.
|
|
|
|
.. important:: Check the key output. Sometimes radosgw-admin generates a key
|
|
with an escape (\) character, and some clients do not know how to handle
|
|
escape characters. Remedies include removing the escape character (\),
|
|
encapsulating the string in quotes, or simply regenerating the key and
|
|
ensuring that it does not have an escape character.
|
|
|
|
Subuser
|
|
-------
|
|
|
|
Next, create a subuser for the Swift-compatible interface. ::
|
|
|
|
sudo radosgw-admin subuser create --uid=johndoe --subuser=johndoe:swift --access=full
|
|
|
|
.. code-block:: javascript
|
|
|
|
{ "user_id": "johndoe",
|
|
"rados_uid": 0,
|
|
"display_name": "John Doe",
|
|
"email": "john@example.com",
|
|
"suspended": 0,
|
|
"subusers": [
|
|
{ "id": "johndoe:swift",
|
|
"permissions": "full-control"}],
|
|
"keys": [
|
|
{ "user": "johndoe",
|
|
"access_key": "QFAMEDSJP5DEKJO0DDXY",
|
|
"secret_key": "iaSFLDVvDdQt6lkNzHyW4fPLZugBAI1g17LO0+87"}],
|
|
"swift_keys": []}
|
|
|
|
::
|
|
|
|
sudo radosgw-admin key create --subuser=johndoe:swift --key-type=swift
|
|
|
|
.. code-block:: javascript
|
|
|
|
{ "user_id": "johndoe",
|
|
"rados_uid": 0,
|
|
"display_name": "John Doe",
|
|
"email": "john@example.com",
|
|
"suspended": 0,
|
|
"subusers": [
|
|
{ "id": "johndoe:swift",
|
|
"permissions": "full-control"}],
|
|
"keys": [
|
|
{ "user": "johndoe",
|
|
"access_key": "QFAMEDSJP5DEKJO0DDXY",
|
|
"secret_key": "iaSFLDVvDdQt6lkNzHyW4fPLZugBAI1g17LO0+87"}],
|
|
"swift_keys": [
|
|
{ "user": "johndoe:swift",
|
|
"secret_key": "E9T2rUZNu2gxUjcwUBO8n\/Ev4KX6\/GprEuH4qhu1"}]}
|
|
|
|
This step enables you to use any Swift client to connect to and use RADOS
|
|
Gateway via the Swift-compatible API.
|
|
|
|
RGW's ``user:subuser`` tuple maps to the ``tenant:user`` tuple expected by Swift.
|
|
|
|
.. note:: RGW's Swift authentication service only supports
|
|
built-in Swift authentication (``-V 1.0``) at this point. See
|
|
`RGW Configuration`_ for Keystone integration details.
|
|
|
|
|
|
Enable SSL
|
|
==========
|
|
|
|
Some REST clients use HTTPS by default. So you should consider enabling SSL
|
|
for Apache on the server machine. ::
|
|
|
|
sudo a2enmod ssl
|
|
|
|
Once you enable SSL, you should generate an SSL certificate. ::
|
|
|
|
sudo mkdir /etc/apache2/ssl
|
|
sudo openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout /etc/apache2/ssl/apache.key -out /etc/apache2/ssl/apache.crt
|
|
|
|
Then, restart Apache. ::
|
|
|
|
service apache2 restart
|
|
|
|
|
|
.. _Create rgw.conf: ../../radosgw/config/index.html#create-rgw-conf
|
|
.. _5-minute Quick Start: ../quick-start
|
|
.. _RADOS Gateway Manual Install: ../../radosgw/manual-install
|
|
.. _RGW Configuration: ../../radosgw/config |