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https://github.com/ceph/ceph
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159 lines
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ReStructuredText
159 lines
5.2 KiB
ReStructuredText
=====================
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Preflight Checklist
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=====================
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.. versionadded:: 0.60
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Thank you for trying Ceph! We recommend setting up a ``ceph-deploy`` admin node
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and a 3-node :term:`Ceph Storage Cluster` to explore the basics of Ceph. This
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**Preflight Checklist** will help you prepare a ``ceph-deploy`` admin node and
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three Ceph Nodes (or virtual machines) that will host your Ceph Storage Cluster.
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.. ditaa::
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/------------------\ /----------------\
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| Admin Node | | ceph–node1 |
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| +-------->+ |
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| ceph–deploy | | cCCC |
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\---------+--------/ \----------------/
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| /----------------\
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| | ceph–node2 |
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+----------------->+ |
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| | cCCC |
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| \----------------/
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| /----------------\
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| | ceph–node3 |
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+----------------->| |
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| cCCC |
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\----------------/
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Ceph Node Setup
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===============
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Perform the following steps:
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#. Create a user on each Ceph Node. ::
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ssh user@ceph-server
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sudo useradd -d /home/ceph -m ceph
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sudo passwd ceph
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#. Add ``root`` privileges for the user on each Ceph Node. ::
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echo "ceph ALL = (root) NOPASSWD:ALL" | sudo tee /etc/sudoers.d/ceph
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sudo chmod 0440 /etc/sudoers.d/ceph
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#. Install an SSH server (if necessary)::
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sudo apt-get install openssh-server
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sudo yum install openssh-server
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#. Configure your ``ceph-deploy`` admin node with password-less SSH access to
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each Ceph Node. Leave the passphrase empty::
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ssh-keygen
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Generating public/private key pair.
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Enter file in which to save the key (/ceph-client/.ssh/id_rsa):
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Enter passphrase (empty for no passphrase):
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Enter same passphrase again:
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Your identification has been saved in /ceph-client/.ssh/id_rsa.
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Your public key has been saved in /ceph-client/.ssh/id_rsa.pub.
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#. Copy the key to each Ceph Node. ::
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ssh-copy-id ceph@ceph-server
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#. Modify the ``~/.ssh/config`` file of your ``ceph-deploy`` admin node so that
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it logs in to Ceph Nodes as the user you created (e.g., ``ceph``). ::
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Host ceph-server
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Hostname ceph-server.fqdn-or-ip-address.com
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User ceph
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#. Ensure connectivity using ``ping`` with hostnames (i.e., not IP addresses).
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Address hostname resolution issues and firewall issues as necessary.
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Ceph Deploy Setup
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=================
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Add Ceph repositories to the ``ceph-deploy`` admin node. Then, install
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``ceph-deploy``.
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.. important:: Do not call ``ceph-deploy`` with ``sudo`` or run it as ``root``
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if you are logged in as a different user, because it will not issue ``sudo``
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commands needed on the remote host.
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Advanced Package Tool (APT)
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---------------------------
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For Debian and Ubuntu distributions, perform the following steps:
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#. Add the release key::
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wget -q -O- 'https://ceph.com/git/?p=ceph.git;a=blob_plain;f=keys/release.asc' | sudo apt-key add -
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echo deb http://ceph.com/debian-dumpling/ $(lsb_release -sc) main | sudo tee /etc/apt/sources.list.d/ceph.list
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sudo apt-get update
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sudo apt-get install ceph-deploy
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#. Add the Ceph packages to your repository. Replace ``{ceph-stable-release}``
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with a stable Ceph release (e.g., ``cuttlefish``, ``dumpling``, etc.).
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For example::
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echo deb http://ceph.com/debian-{ceph-stable-release}/ $(lsb_release -sc) main | sudo tee /etc/apt/sources.list.d/ceph.list
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#. Update your repository and install ``ceph-deploy``::
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sudo apt-get update && sudo apt-get install ceph-deploy
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Red Hat Package Manager (RPM)
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-----------------------------
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For Red Hat(rhel6), CentOS (el6), Fedora 17-19 (f17-f19), OpenSUSE 12
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(opensuse12), and SLES (sles11) perform the following steps:
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#. Add the package to your repository. Open a text editor and create a
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Yellowdog Updater, Modified (YUM) entry. Use the file path
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``/etc/yum.repos.d/ceph.repo``. For example::
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sudo vim /etc/yum.repos.d/ceph.repo
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Paste the following example code. Replace ``{ceph-stable-release}`` with
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the recent stable release of Ceph (e.g., ``dumpling``). Replace ``{distro}``
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with your Linux distribution (e.g., ``el6`` for CentOS 6, ``rhel6`` for
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Red Hat 6, ``fc18`` or ``fc19`` for Fedora 18 or Fedora 19, and ``sles11``
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for SLES 11). Finally, save the contents to the
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``/etc/yum.repos.d/ceph.repo`` file. ::
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[ceph-noarch]
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name=Ceph noarch packages
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baseurl=http://ceph.com/rpm-{ceph-stable-release}/{distro}/noarch
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enabled=1
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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/release.asc
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#. Update your repository and install ``ceph-deploy``::
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sudo yum update && sudo yum install ceph-deploy
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Summary
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=======
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This completes the Quick Start Preflight. Proceed to the `Storage Cluster
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Quick Start`_.
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.. _Storage Cluster Quick Start: ../quick-ceph-deploy
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.. _OS Recommendations: ../../install/os-recommendations
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