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https://github.com/ceph/ceph
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393 lines
11 KiB
ReStructuredText
393 lines
11 KiB
ReStructuredText
=============================
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Install Ceph Object Gateway
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=============================
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The :term:`Ceph Object Gateway` daemon runs on Apache and FastCGI.
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To run a :term:`Ceph Object Storage` service, you must install Apache and
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FastCGI. Then, you must install the Ceph Object Gateway daemon. The Ceph Object
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Gateway supports 100-continue, but you must install Ceph builds of Apache and
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FastCGI for 100-continue support. To install the Ceph Object Gateway, first
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install and configure Apache and FastCGI. Then, install the Ceph Object Gateway
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daemon. If you plan to run a Ceph Object Storage service with a federated
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architecture (multiple regions and zones), you must also install the
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synchronization agent.
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See `Get Packages`_ for information on adding Ceph packages to each Ceph Node.
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Ensure that you have executed those steps on each Ceph Node first.
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Apache/FastCGI w/out 100-Continue
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=================================
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You may use standard Apache and FastCGI packages for your Ceph Object
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Gateways. However, they will not provide 100-continue support.
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Debian Packages
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---------------
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To install Apache and FastCGI Debian packages, execute the following::
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sudo apt-get install apache2 libapache2-mod-fastcgi
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RPM Packages
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------------
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To install Apache and FastCGI RPMs, execute the following::
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sudo rpm -ivh fcgi-2.4.0-10.el6.x86_64.rpm
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sudo rpm -ivh mod_fastcgi-2.4.6-2.el6.rf.x86_64.rpm
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Or::
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sudo yum install httpd mod_fastcgi
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Apache/FastCGI w/ 100-Continue
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==============================
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The Ceph community provides a slightly optimized version of the ``apache2``
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and ``fastcgi`` packages. The material difference is that the Ceph packages are
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optimized for the ``100-continue`` HTTP response, where the server determines
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if it will accept the request by first evaluating the request header. See `RFC
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2616, Section 8`_ for details on ``100-continue``. You can find the most recent
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builds of Apache and FastCGI packages modified for Ceph at `gitbuilder.ceph.com`_.
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Debian Packages
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---------------
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#. Add the development key::
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wget -q -O- https://raw.github.com/ceph/ceph/master/keys/autobuild.asc | sudo apt-key add -
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#. Add a ``ceph-apache.list`` file to your APT sources. ::
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echo deb http://gitbuilder.ceph.com/apache2-deb-$(lsb_release -sc)-x86_64-basic/ref/master $(lsb_release -sc) main | sudo tee /etc/apt/sources.list.d/ceph-apache.list
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#. Add a ``ceph-fastcgi.list`` file to your APT sources. ::
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echo deb http://gitbuilder.ceph.com/libapache-mod-fastcgi-deb-$(lsb_release -sc)-x86_64-basic/ref/master $(lsb_release -sc) main | sudo tee /etc/apt/sources.list.d/ceph-fastcgi.list
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#. Update your repository and install Apache and FastCGI::
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sudo apt-get update && sudo apt-get install apache2 libapache2-mod-fastcgi
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RPM Packages
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------------
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To install Apache with 100-continue, execute the following steps:
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#. Install ``yum-plugin-priorities``. ::
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sudo yum install yum-plugin-priorities
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#. Ensure ``/etc/yum/pluginconf.d/priorities.conf`` exists.
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#. Ensure ``priorities.conf`` enables the plugin. ::
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[main]
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enabled = 1
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#. Add a ``ceph-apache.repo`` file to ``/etc/yum.repos.d``. Replace
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``{distro}`` with the name of your distribution (e.g., ``centos6``,
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``rhel6``, etc.) ::
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[apache2-ceph-noarch]
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name=Apache noarch packages for Ceph
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baseurl=http://gitbuilder.ceph.com/apache2-rpm-{distro}-x86_64-basic/ref/master
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enabled=1
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priority=2
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gpgcheck=1
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type=rpm-md
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gpgkey=https://ceph.com/git/?p=ceph.git;a=blob_plain;f=keys/autobuild.asc
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[apache2-ceph-source]
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name=Apache source packages for Ceph
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baseurl=http://gitbuilder.ceph.com/apache2-rpm-{distro}-x86_64-basic/ref/master
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enabled=0
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priority=2
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gpgcheck=1
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type=rpm-md
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gpgkey=https://ceph.com/git/?p=ceph.git;a=blob_plain;f=keys/autobuild.asc
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#. Add a ``ceph-fastcgi.repo`` file to ``/etc/yum.repos.d``. Replace
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``{distro}`` with the name of your distribution (e.g., ``centos6``,
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``rhel6``, etc.) ::
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[fastcgi-ceph-basearch]
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name=FastCGI basearch packages for Ceph
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baseurl=http://gitbuilder.ceph.com/mod_fastcgi-rpm-{distro}-x86_64-basic/ref/master
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enabled=1
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priority=2
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gpgcheck=1
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type=rpm-md
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gpgkey=https://ceph.com/git/?p=ceph.git;a=blob_plain;f=keys/autobuild.asc
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[fastcgi-ceph-noarch]
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name=FastCGI noarch packages for Ceph
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baseurl=http://gitbuilder.ceph.com/mod_fastcgi-rpm-{distro}-x86_64-basic/ref/master
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enabled=1
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priority=2
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gpgcheck=1
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type=rpm-md
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gpgkey=https://ceph.com/git/?p=ceph.git;a=blob_plain;f=keys/autobuild.asc
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[fastcgi-ceph-source]
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name=FastCGI source packages for Ceph
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baseurl=http://gitbuilder.ceph.com/mod_fastcgi-rpm-{distro}-x86_64-basic/ref/master
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enabled=0
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priority=2
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gpgcheck=1
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type=rpm-md
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gpgkey=https://ceph.com/git/?p=ceph.git;a=blob_plain;f=keys/autobuild.asc
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If the repository doesn't have a ``noarch`` section, you may remove the
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``noarch`` entry above.
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#. Update your repository. On RHEL systems, enable the
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``rhel-6-server-optional-rpms`` repository. ::
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sudo yum update --enablerepo=rhel-6-server-optional-rpms
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#. Install Apache and FastCGI. ::
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sudo yum update && sudo yum install httpd mod_fastcgi
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Configure Apache/FastCGI
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========================
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To complete the installation, ensure that you have the rewrite module
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enabled and FastCGI enabled. The steps differ slightly based upon the
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type of package installation.
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Debian-based Packages
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---------------------
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#. Open the ``apache2.conf`` file. ::
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sudo vim /etc/apache2/apache2.conf
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#. Add a line for the ``ServerName`` in the Apache configuration file.
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Provide the fully qualified domain name of the server machine
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(e.g., ``hostname -f``). ::
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ServerName {fqdn}
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#. Enable the URL rewrite modules for Apache and FastCGI. ::
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sudo a2enmod rewrite
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sudo a2enmod fastcgi
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#. Restart Apache so that the foregoing changes take effect. ::
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sudo service apache2 restart
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RPM-based Packages
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------------------
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#. Open the ``httpd.conf`` file. ::
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sudo vim /etc/httpd/conf/httpd.conf
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#. Uncomment ``#ServerName`` and add the name of your server.
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Provide the fully qualified domain name of the server machine
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(e.g., ``hostname -f``).::
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ServerName {fgdn}
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#. Ensure that the Rewrite module is enabled. ::
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#if not present, add:
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LoadModule rewrite_module modules/mod_rewrite.so
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#. Save the ``httpd.conf`` file.
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#. Ensure that the FastCGI module is enabled. The installer should
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include an ``/etc/httpd/conf.d/fastcgi.conf`` file that loads the
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FastCGI module. ::
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#if not present, add:
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LoadModule fastcgi_module modules/mod_fastcgi.so
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#. Restart Apache so that the foregoing changes take effect.. ::
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sudo /etc/init.d/httpd restart
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Enable SSL
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==========
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Some REST clients use HTTPS by default. So you should consider enabling SSL
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for Apache. Use the following procedures to enable SSL.
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.. note:: You can use self-certified certificates. Some client
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APIs check for a trusted certificate authority. You may need to obtain
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a SSL certificate from a trusted authority to use those client APIs.
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Debian Packages
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---------------
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To enable SSL for Debian/Ubuntu systems, execute the following steps:
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#. Ensure that you have installed the dependencies. ::
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sudo apt-get install openssl ssl-cert
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#. Enable the SSL module. ::
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sudo a2enmod ssl
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#. Generate a certificate. ::
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sudo mkdir /etc/apache2/ssl
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sudo openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout /etc/apache2/ssl/apache.key -out /etc/apache2/ssl/apache.crt
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#. Restart Apache. ::
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sudo service apache2 restart
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See the `Ubuntu Server Guide`_ for additional details.
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RPM Packages
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------------
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To enable SSL for RPM-based systems, execute the following steps:
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#. Ensure that you have installed the dependencies. ::
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sudo yum install mod_ssl openssl
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#. Ensure the SSL module is enabled.
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#. Generate a certificate and copy it the appropriate locations. ::
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openssl x509 -req -days 365 -in ca.csr -signkey ca.key -out ca.crt
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cp ca.crt /etc/pki/tls/certs
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cp ca.key /etc/pki/tls/private/ca.key
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cp ca.csr /etc/pki/tls/private/ca.csr
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#. Restart Apache. ::
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sudo /etc/init.d/httpd restart
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See `Setting up an SSL secured Webserver with CentOS`_ for additional details.
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Add Wildcard to DNS
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===================
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To use Ceph with S3-style subdomains (e.g., ``bucket-name.domain-name.com``),
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you need to add a wildcard to the DNS record of the DNS server you use with the
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``radosgw`` daemon.
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.. tip:: The address of the DNS must also be specified in the Ceph
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configuration file with the ``rgw dns name = {hostname}`` setting.
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For ``dnsmasq``, consider addding the following ``address`` setting with a dot
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(.) prepended to the host name::
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address=/.{hostname-or-fqdn}/{host-ip-address}
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address=/.ceph-node/192.168.0.1
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For ``bind``, consider adding the a wildcard to the DNS record::
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$TTL 604800
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@ IN SOA ceph-node. root.ceph-node. (
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2 ; Serial
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604800 ; Refresh
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86400 ; Retry
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2419200 ; Expire
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604800 ) ; Negative Cache TTL
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;
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@ IN NS ceph-node.
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@ IN A 192.168.122.113
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* IN CNAME @
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Restart your DNS server and ping your server with a subdomain to
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ensure that your Ceph Object Store ``radosgw`` daemon can process
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the subdomain requests. ::
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ping mybucket.{fqdn}
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ping mybucket.ceph-node
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Install Ceph Object Gateway
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===========================
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Ceph Object Storage services use the Ceph Object Gateway daemon (``radosgw``)
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to enable the gateway. For federated architectures, the synchronization
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agent (``radosgw-agent``) provides data and metadata synchronization between
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zones and regions.
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Debian Packages
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---------------
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To install the Ceph Object Gateway daemon, execute the following::
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sudo apt-get install radosgw
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To install the Ceph Object Gateway synchronization agent, execute the
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following::
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sudo apt-get install radosgw-agent
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RPM Packages
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------------
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To install the Ceph Object Gateway daemon, execute the
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following::
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sudo yum install ceph-radosgw ceph
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To install the Ceph Object Gateway synchronization agent, execute the
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following::
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sudo yum install radosgw-agent
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Configure The Gateway
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=====================
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Once you have installed the Ceph Object Gateway packages, the next step is
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to configure your Ceph Object Gateway. There are two approaches:
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- **Simple:** A `simple`_ Ceph Object Gateway configuration implies that you
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are running a Ceph Object Storage service in a single data center. So you can
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configure the Ceph Object Gateway without regard to regions and zones.
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- **Federated:** A `federated`_ Ceph Object Gateway configuration implies that
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you are running a Ceph Object Storage service in a geographically distributed
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manner for fault tolerance and failover. This involves configuring your
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Ceph Object Gateway instances with regions and zones.
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Choose the approach that best reflects your cluster.
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.. _Get Packages: ../get-packages
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.. _Ubuntu Server Guide: https://help.ubuntu.com/12.04/serverguide/httpd.html
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.. _Setting up an SSL secured Webserver with CentOS: http://wiki.centos.org/HowTos/Https
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.. _RFC 2616, Section 8: http://www.w3.org/Protocols/rfc2616/rfc2616-sec8.html
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.. _gitbuilder.ceph.com: http://gitbuilder.ceph.com
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.. _Installing YUM Priorities: ../yum-priorities
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.. _simple: ../../radosgw/config
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.. _federated: ../../radosgw/federated-config
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