mirror of https://github.com/ceph/ceph
162 lines
3.8 KiB
Markdown
162 lines
3.8 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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Note that these instructions are meant for developers who are
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compiling the code for development and testing. To build binaries
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suitable for installation we recommend you build deb or rpm packages,
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or refer to the ceph.spec.in or debian/rules to see which
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configuration options are specified for production builds.
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Prerequisite:
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CMake 2.8.11
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Build instructions:
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./do_cmake.sh
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cd build
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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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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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To run a functional test cluster,
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cd build
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../src/vstart.sh -d -n -x -l
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./bin/ceph -s
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Almost all of the usual commands are available in the bin/ directory.
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For example,
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./bin/rados -p rbd bench 30 write
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./bin/rbd create foo --size 1000
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To shut down the test cluster,
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../src/stop.sh
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To start or stop individual daemons, the sysvinit script can be used:
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./bin/init-ceph restart osd.0
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./bin/init-ceph stop
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Running unit tests
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==================
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To run build and run all tests, use ctest:
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cd build
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ctest -j$(nproc)
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To run an individual test manually, run the ctest command with -R
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(regex matching):
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ctest -R [test name]
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To run an individual test manually and see all the tests output, run
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the ctest command with the -V (verbose) flag:
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ctest -V -R [test name]
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To run an tests manually and run the jobs in parallel, run the ctest
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command with the -j flag:
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ctest -j [number of jobs]
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There are many other flags you can give the ctest command for better control
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over manual test execution. To view these options run:
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man ctest
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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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