mirror of https://github.com/ceph/ceph
202 lines
4.3 KiB
Markdown
202 lines
4.3 KiB
Markdown
============================================
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Ceph - a scalable distributed storage system
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============================================
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Please see http://ceph.com/ for current info.
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Contributing Code
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=================
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Most of Ceph is licensed under the LGPL version 2.1. Some
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miscellaneous code is under BSD-style license or is public domain.
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The documentation is licensed under Creative Commons
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Attribution-ShareAlike (CC BY-SA). There are a handful of headers
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included here that are licensed under the GPL. Please see the file
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COPYING for a full inventory of licenses by file.
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Code contributions must include a valid "Signed-off-by" acknowledging
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the license for the modified or contributed file. Please see the file
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SubmittingPatches.rst for details on what that means and on how to
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generate and submit patches.
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We do not require assignment of copyright to contribute code; code is
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contributed under the terms of the applicable license.
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Checking out the source
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=======================
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You can clone from github with
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git clone git@github.com:ceph/ceph
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or, if you are not a github user,
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git clone git://github.com/ceph/ceph
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Ceph contains many git submodules that need to be checked out with
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git submodule update --init --recursive
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Build Prerequisites
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===================
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The list of Debian or RPM packages dependencies can be installed with:
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./install-deps.sh
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Building Ceph
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=============
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Autotools
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---------
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Developers, please refer to the [Developer
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Guide](doc/dev/quick_guide.rst) for more information, otherwise, you
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can build the server daemons, and FUSE client, by executing the
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following:
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./autogen.sh
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./configure
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make
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(Note that the FUSE client will only be built if libfuse is present.)
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CMake
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-----
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Prerequisite:
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CMake 2.8.11
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Build instructions:
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mkdir build
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cd build
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cmake [options] ..
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make
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This assumes you make your build dir a subdirectory of the ceph.git
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checkout. If you put it elsewhere, just replace .. above with a
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correct path to the checkout.
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Dependencies
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------------
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The configure script will complain about any missing dependencies as
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it goes. You can also refer to debian/control or ceph.spec.in for the
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package build dependencies on those platforms. In many cases,
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dependencies can be avoided with --with-foo or --without-bar switches.
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For example,
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./configure --with-nss # use libnss instead of libcrypto++
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./configure --without-radosgw # do not build radosgw
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./configure --without-tcmalloc # avoid google-perftools dependency
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Building packages
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-----------------
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You can build packages for Debian or Debian-derived (e.g., Ubuntu)
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systems with
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sudo apt-get install dpkg-dev
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dpkg-checkbuilddeps # make sure we have all dependencies
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dpkg-buildpackage
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For RPM-based systems (Red Hat, SUSE, etc.),
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rpmbuild
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Running a test cluster
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======================
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Autotools
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---------
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To run a functional test cluster,
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cd src
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./vstart.sh -d -n -x -l
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./ceph -s
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Almost all of the usual commands are available in the src/ directory.
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For example,
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./rados -p rbd bench 30 write
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./rbd create foo --size 1000
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To shut down the test cluster,
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./stop.sh
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To start or stop individual daemons, the sysvinit script should work:
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./init-ceph restart osd.0
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./init-ceph stop
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CMake
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-----
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???
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Running unit tests
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==================
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Autotools
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---------
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To run all tests, a simple
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cd src
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make check
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will suffice. Each test generates a log file that is the name of the
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test with .log appended. For example, unittest_addrs generates a
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unittest_addrs.log and test/osd/osd-config.sh puts its output in
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test/osd/osd-config.sh.log.
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To run an individual test manually, you may want to clean up with
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rm -rf testdir /tmp/*virtualenv
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./stop.sh
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and then run a given test like so:
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./unittest_addrs
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Many tests are bash scripts that spin up small test clusters, and must be run
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like so:
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CEPH_DIR=. test/osd/osd-bench.sh # or whatever the test is
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CMake
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-----
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???
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Building the Documentation
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==========================
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Prerequisites
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-------------
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The list of package dependencies for building the documentation can be
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found in doc_deps.deb.txt:
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sudo apt-get install `cat doc_deps.deb.txt`
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Building the Documentation
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--------------------------
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To build the documentation, ensure that you are in the top-level
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`/ceph directory, and execute the build script. For example:
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admin/build-doc
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