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78 lines
3.3 KiB
Plaintext
78 lines
3.3 KiB
Plaintext
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= Debian Support =
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One convenient way to deploy a Tahoe grid is via debian packages.
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== Building Debian Packages ==
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The Tahoe source tree comes with limited support for building debian packages
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on a variety of Debian and Ubuntu platforms. For each supported platform,
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there is a "deb-PLATFORM-head" target in the Makefile that will produce a
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debian package from a darcs checkout, using a version number that is derived
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from the most recent darcs tag, plus the total number of revisions present in
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the tree (e.g. "1.1-r2678").
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To create debian packages from a Tahoe tree, you will need some additional
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tools installed. The canonical list of these packages is in the
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"Build-Depends" clause of misc/sid/debian/control , and includes:
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build-essential
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debhelper
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cdbs
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python-central
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python-setuptools
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python
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python-dev
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python-twisted-core
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In addition, to use the "deb-PLATFORM-head" target, you will also need the
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"debchange" utility from the "devscripts" package, and the "fakeroot" package.
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Some recent platforms can be handled by using the targets for the previous
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release, for example if there is no "deb-hardy-head" target, try building
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"deb-gutsy-head" and see if the resulting package will work.
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Note that we haven't tried to build source packages (.orig.tar.gz + dsc) yet,
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and there are no such source packages in our APT repository.
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== Using Pre-Built Debian Packages ==
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The allmydata.org site hosts an APT repository with debian packages that are
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built after each checkin. The following wiki page describes this repository:
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http://allmydata.org/trac/tahoe/wiki/DownloadDebianPackages
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The allmydata.org APT repository also includes debian packages of support
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libraries, like Foolscap, zfec, pycryptopp, and everything else you need that
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isn't already in debian.
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== Building From Source on Debian Systems ==
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Many of Tahoe's build dependencies can be satisfied by first installing
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certain debian packages: simplejson is one of these. Some debian/ubuntu
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platforms do not provide the necessary .egg-info metadata with their
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packages, so the Tahoe build process may not believe they are present. Some
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Tahoe dependencies are not present in most debian systems (such as foolscap
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and zfec): debs for these are made available in the APT repository described
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above.
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The Tahoe build process will acquire (via setuptools) most of the libraries
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that it needs to run and which are not already present in the build
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environment).
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We have observed occasional problems with this acquisition process. In some
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cases, setuptools will only be half-aware of an installed debian package,
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just enough to interfere with the automatic download+build of the dependency.
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For example, on some platforms, if Nevow-0.9.26 is installed via a debian
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package, setuptools will believe that it must download Nevow anyways, but it
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will insist upon downloading that specific 0.9.26 version. Since the current
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release of Nevow is 0.9.31, and 0.9.26 is no longer available for download,
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this will fail.
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The Tahoe source tree currently ships with a directory full of tarballs of
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dependent libraries (misc/dependencies/), to enable a "desert-island build".
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There are plans to remove these tarballs from the source repository (but
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still provide a way to get Tahoe source plus dependencies). This Nevow-0.9.26
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-type problem can be mitigated by putting the right dependency tarball in
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misc/dependencies/ .
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