HYDRA: TOP-NOTCH CONTINUOUS INTEGRATION FOR DEMANDING PEOPLE

Transcription

1 HYDRA: TOP-NOTCH CONTINUOUS INTEGRATION FOR DEMANDING PEOPLE Ludovic Courtès Service d expérimentation & développement Inria Bordeaux Sud-Ouest 3 November 2011

2 introduction features practice closing L. Courtès Hydra: continuous integration for demanding people 2

3 scenario 1: a peaceful development team... L. Courtès Hydra: continuous integration for demanding people 3

4 scenario 1:... software that works... L. Courtès Hydra: continuous integration for demanding people 4

5 scenario 1:... and suddenly... L. Courtès Hydra: continuous integration for demanding people 5

6 scenario 1: who broke it?! L. Courtès Hydra: continuous integration for demanding people 6

7 scenario 2: works for me user: It s broken. L. Courtès Hydra: continuous integration for demanding people 7

8 scenario 2: works for me user: It s broken. dev: Weird, it works for me. L. Courtès Hydra: continuous integration for demanding people 8

9 scenario 2: works for me user: It s broken. dev: Weird, it works for me. Which platform? L. Courtès Hydra: continuous integration for demanding people 9

10 scenario 2: works for me user: It s broken. dev: Weird, it works for me. Which platform? user: Darwin L. Courtès Hydra: continuous integration for demanding people 10

11 scenario 2: works for me user: It s broken. dev: Weird, it works for me. Which platform? user: Darwin On x L. Courtès Hydra: continuous integration for demanding people 11

12 scenario 2: works for me user: It s broken. dev: Weird, it works for me. Which platform? user: Darwin On x With Apple GCC 4.0.1, GMP 4.2.4, MPFR 2.4.2, BDB 4.2. L. Courtès Hydra: continuous integration for demanding people 12

13 scenario 2: works for me user: It s broken. dev: Weird, it works for me. Which platform? user: Darwin On x With Apple GCC 4.0.1, GMP 4.2.4, MPFR 2.4.2, BDB 4.2. Et avec --disable-color. L. Courtès Hydra: continuous integration for demanding people 13

14 scenario 2: works for me user: It s broken. dev: Weird, it works for me. Which platform? user: Darwin On x With Apple GCC 4.0.1, GMP 4.2.4, MPFR 2.4.2, BDB 4.2. Et avec --disable-color. dev: Well, too bad. I rather test on GNU/Linux, i686 L. Courtès Hydra: continuous integration for demanding people 14

15 scenario 2: works for me user: It s broken. dev: Weird, it works for me. Which platform? user: Darwin On x With Apple GCC 4.0.1, GMP 4.2.4, MPFR 2.4.2, BDB 4.2. Et avec --disable-color. dev: Well, too bad. I rather test on GNU/Linux, i686, with GCC 4.6.2, GMP 4.2.1, MPFR 2.4.1, GDBM 1.8.2, GTK Oh, and with --enable-color --enable-gui. L. Courtès Hydra: continuous integration for demanding people 15

21 why continuous integration is so great 1. continuous compilation/test L. Courtès Hydra: continuous integration for demanding people 21

22 why continuous integration is so great 1. continuous compilation/test 2. quick feedback L. Courtès Hydra: continuous integration for demanding people 22

23 why continuous integration is so great 1. continuous compilation/test 2. quick feedback 3. pristine build environment L. Courtès Hydra: continuous integration for demanding people 23

24 why continuous integration is so great 1. continuous compilation/test 2. quick feedback 3. pristine build environment 4. different configurations under test L. Courtès Hydra: continuous integration for demanding people 24

25 why continuous integration is so great 1. continuous compilation/test 2. quick feedback 3. pristine build environment 4. different configurations under test 5. build results published L. Courtès Hydra: continuous integration for demanding people 25

26 the true cost of doing it yourself while true do rm -rf foo svn co svn+ssh://scm.gforge.inria.fr/svn/foo/trunk foo cd foo make sleep 300 done L. Courtès Hydra: continuous integration for demanding people 26

27 the true cost of doing it yourself while true do rm -rf foo svn co svn+ssh://scm.gforge.inria.fr/svn/foo/trunk foo cd foo make 2>&1 > build-log \ mail [email protected] -s "Build failed!" \ < build-log sleep 300 done L. Courtès Hydra: continuous integration for demanding people 27

28 the true cost of doing it yourself function svn revision { ( cd "$1" svn info \ grep \^R.vision *: *$[0-9]\+$$ \ sed -e s/[^0-9]//g ) } function svn update { ( prev rev="$(svn revision $1)" ( cd "$1" ; svn update ) new rev="$(svn revision $1)" test $prev rev -ne $new rev ) } function update html report { local stamp="$(date -u +%Y%m%d-%H%M)" local test log="$builddir/testsuite/log" local failure rate="(tests not run)" gzip --best < "$2" > "build-$stamp.log.gz" scp "build-$stamp.log.gz" "$ssh remote dir/" if [ -f "$test log" ] then i failure rate="$(test failure rate $test log)" $html gzip --best. scp "test-$stamp.log.gz" "$ssh remote dir/" wq fi EOF local result bgcolor if [ $1 -ne 0 ] then } result="<b>fail</b>" bgcolor="lightred" else result="pass" bgcolor="lightgreen" fi local rev="$(svn revision $srcdir)" local html="<tr bgcolor= $bgcolor > <td><a href= $(gforge revision url foo $rev) >$rev< <td>$stamp</td> <td>$failure rate</td> <td> $result [ <a href= build-$stamp.log.gz >build</a> <a href=ẗest-$stamp.log.gz >test</a> ] </td> </tr>" ed "$html report" <<EOF /INSERT BUILD RESULTS +1 < "$builddir/testsuite/log" scp "$html report" "$ssh remote dir/index.html" L. Courtès Hydra: continuous integration for demanding people 28

29 the true cost of doing it yourself function svn revision { ( cd "$1" svn info \ grep \^R.vision *: *$[0-9]\+$$ \ sed -e s/[^0-9]//g ) } function svn update { ( prev rev="$(svn revision $1)" ( cd "$1" ; svn update ) new rev="$(svn revision $1)" test $prev rev -ne $new rev ) } function update html report { local stamp="$(date -u +%Y%m%d-%H%M)" local test log="$builddir/testsuite/log" local failure rate="(tests not run)" gzip --best < "$2" > "build-$stamp.log.gz" scp "build-$stamp.log.gz" "$ssh remote dir/" if [ -f "$test log" ] then i failure rate="$(test failure rate $test log)" $html gzip --best. scp "test-$stamp.log.gz" "$ssh remote dir/" wq fi EOF local result bgcolor if [ $1 -ne 0 ] then } result="<b>fail</b>" bgcolor="lightred" else result="pass" bgcolor="lightgreen" fi local rev="$(svn revision $srcdir)" local html="<tr bgcolor= $bgcolor > <td><a href= $(gforge revision url foo $rev) >$rev< <td>$stamp</td> <td>$failure rate</td> <td> $result [ <a href= build-$stamp.log.gz >build</a> <a href=ẗest-$stamp.log.gz >test</a> ] </td> </tr>" ed "$html report" <<EOF /INSERT BUILD RESULTS +1 < "$builddir/testsuite/log" scp "$html report" "$ssh remote dir/index.html" L. Courtès Hydra: continuous integration for demanding people 29

30 lots of tools! BuildBot Jenkins (formerly Hudson) CruiseControl... Hydra L. Courtès Hydra: continuous integration for demanding people 30

31 suitability of a continuous integration tool languages & build systems? build notification & visualization? portability? reproducibility? scalability? L. Courtès Hydra: continuous integration for demanding people 31

33 testimonial Thanks to Hydra, my software projects shine more than ever! Ludovic C. L. Courtès Hydra: continuous integration for demanding people 33

34 Hydra, Nix, & you Nix build tool focus on controlling the build environment Hydra continuous integration tool based on Nix L. Courtès Hydra: continuous integration for demanding people 34

35 Hydra, Nix, & you Nix build tool focus on controlling the build environment Hydra continuous integration tool based on Nix web interface + notification GNU/Linux, FreeBSD, MacOS X, Cygwin distributed builds L. Courtès Hydra: continuous integration for demanding people 35

36 Hydra, Nix, & you Nix build tool focus on controlling the build environment Hydra continuous integration tool based on Nix web interface + notification GNU/Linux, FreeBSD, MacOS X, Cygwin distributed builds SSH/root access to the build host not needed L. Courtès Hydra: continuous integration for demanding people 36

37 Hydra, Nix, & you Nix build tool focus on controlling the build environment Hydra continuous integration tool based on Nix web interface + notification GNU/Linux, FreeBSD, MacOS X, Cygwin distributed builds SSH/root access to the build host not needed manage the build environment by yourself! L. Courtès Hydra: continuous integration for demanding people 37

38 a project L. Courtès Hydra: continuous integration for demanding people 38

39 a job set L. Courtès Hydra: continuous integration for demanding people 39

40 a build L. Courtès Hydra: continuous integration for demanding people 40

41 build inputs L. Courtès Hydra: continuous integration for demanding people 41

42 build input changes L. Courtès Hydra: continuous integration for demanding people 42

43 view of a successful job set L. Courtès Hydra: continuous integration for demanding people 43

44 a failed build L. Courtès Hydra: continuous integration for demanding people 44

45 build input changes that led to a failure L. Courtès Hydra: continuous integration for demanding people 45

46 build environments vs. reproducibility versions of the dependencies compiler compilation options, and those of dependencies miscellaneous (locale, timezone, etc.) paths L. Courtès Hydra: continuous integration for demanding people 46

47 build environments vs. reproducibility versions of the dependencies compiler compilation options, and those of dependencies miscellaneous (locale, timezone, etc.) paths -I/path/to/headers -L/path/to/lib $CPATH $LIBRARY PATH L. Courtès Hydra: continuous integration for demanding people 47

48 build environments vs. reproducibility versions of the dependencies compiler compilation options, and those of dependencies miscellaneous (locale, timezone, etc.) paths -I/path/to/headers -L/path/to/lib $LD LIBRARY PATH RPATH $CPATH $LIBRARY PATH RUNPATH L. Courtès Hydra: continuous integration for demanding people 48

49 build environments vs. reproducibility versions of the dependencies compiler compilation options, and those of dependencies miscellaneous (locale, timezone, etc.) paths -I/path/to/headers -L/path/to/lib $LD LIBRARY PATH $PYTHONPATH $XML CATALOG FILES $CPATH $LIBRARY PATH RPATH RUNPATH $CLASSPATH $PERL5LIB $GUILE LOAD PATH L. Courtès Hydra: continuous integration for demanding people 49

50 build environments vs. reproducibility versions of the dependencies compiler compilation options, and those of dependencies miscellaneous (locale, timezone, etc.) paths -I/path/to/headers $CPATH -L/path/to/lib $LIBRARY PATH $LD LIBRARY PATH $PYTHONPATH RPATH Ahem, reproducible builds? $CLASSPATH RUNPATH $XML CATALOG FILES $PERL5LIB $GUILE LOAD PATH L. Courtès Hydra: continuous integration for demanding people 50

51 build environment control without Nix hello qt4 which compiler? which libc? L. Courtès Hydra: continuous integration for demanding people 51

52 build environment control without Nix hello qt4 which compiler? which libc? and now your favorite admin upgrades the system... L. Courtès Hydra: continuous integration for demanding people 52

53 build environment control without Nix hello qt4 which compiler? which libc? and now your favorite admin upgrades the system... Segmentation fault L. Courtès Hydra: continuous integration for demanding people 53

54 build environment control without Nix hello qt4 uncontrolled build environment = untraceable failures which compiler? which libc? and now your favorite admin upgrades the system... Segmentation fault L. Courtès Hydra: continuous integration for demanding people 54

55 default-builder.sh ncurses-5.7.drv lzma drv texinfo-4.13a.drv perl drv linux-headers drv binutils drv replace-2.24.drv pcre-7.8.drv gawk drv lzma drv gettext-0.17.drv perl drv gnused drv bzip drv gnum drv gnupatch drv patchelf-0.4.drv gnumake-3.81.drv gnugrep drv prehook.sh bootstrap-tools.drv builder.sh setup.sh libtool-2.2.6a.drv attr drv acl drv no-sys-dirs.patch builder.sh ld-wrapper.sh bootstrap-glibc.drv utils.sh setup-hook.sh add-flags gcc-wrapper.sh setup-hook.sh malloc.patch gettext-fix.patch stdenv-linux-boot.drv builder.sh log.patch impure-dirs.patch diffutils drv coreutils-7.2.drv bootstrap-gcc.drv prehook.sh builder.sh stdenv-linux-boot.drv nss-skip-unavail.patch glibc-2.9.drv locale-override.patch rpcgen-path.patch gcc-wrapper drv new-dtags.patch bootstrap-gcc.drv stdenv-linux-boot.drv pass-cxxcpp.patch builder.sh no-sys-dirs.patch linux tar.bz2.drv gnum drv gcc drv gmp drv mpfr drv glibc tar.bz2.drv binutils tar.bz2.drv mpfr tar.bz2.drv gmp tar.bz2.drv texinfo-4.13a.tar.lzma.drv ncurses-5.7.tar.gz.drv perl tar.gz.drv gcc-core tar.bz2.drv m tar.bz2.drv lzma tar.gz.drv sed tar.gz.drv gcc-g tar.bz2.drv bash drv attr_ tar.gz.drv bzip tar.gz.drv bash drv bash drv coreutils-7.2.tar.gz.drv bash drv bison-2.3.tar.bz2.drv bash drv bash-4.0.tar.gz.drv bash drv bash drv bash drv gettext-0.17.tar.gz.drv libtool-2.2.6a.tar.lzma.drv bash drv bash drv bash drv bash drv replace-2.24-src tar.gz.drv bash drv bash drv bash drv bash drv bash drv diffutils tar.gz.drv gawk tar.bz2.drv acl_ tar.gz.drv pcre-7.8.tar.bz2.drv grep tar.bz2.drv patch tar.gz.drv findutils tar.gz.drv patchelf-0.4.tar.bz2.drv make-3.81.tar.bz2.drv gzip tar.gz.drv bison-2.3.drv write-mirror-list.sh gcc-wrapper drv findutils-path.patch change_echo_path.patch findutils drv mirrors-list.drv perl drv stdenv-linux.drv hello-2.3.drv bash-4.0-p17.drv hello-2.3.tar.bz2.drv bzip2 mkdir curl.bz2 download.sh ln cpio sh openssl-0.9.8k.drv curl drv bootstrap-tools.cpio.bz2.drv connect-timeout.patch zlib drv unpack-bootstrap-tools.sh gnulib-futimens.patch gzip drv gnutar-1.22.drv implausible.patch mirrors-list.drv stdenv-linux-boot.drv builder.sh tar-1.22.tar.bz2.drv zlib tar.gz.drv openssl-0.9.8k.tar.gz.drv curl tar.bz2.drv build environment control with Nix... down to the compiler s compiler! 1 Except for the kernel, the hardware, the direction of the wind, etc. L. Courtès Hydra: continuous integration for demanding people 55

56 default-builder.sh ncurses-5.7.drv lzma drv texinfo-4.13a.drv perl drv linux-headers drv binutils drv replace-2.24.drv pcre-7.8.drv gawk drv lzma drv gettext-0.17.drv perl drv gnused drv bzip drv gnum drv gnupatch drv patchelf-0.4.drv gnumake-3.81.drv gnugrep drv prehook.sh bootstrap-tools.drv builder.sh setup.sh libtool-2.2.6a.drv attr drv acl drv no-sys-dirs.patch builder.sh ld-wrapper.sh bootstrap-glibc.drv utils.sh setup-hook.sh add-flags gcc-wrapper.sh setup-hook.sh malloc.patch gettext-fix.patch stdenv-linux-boot.drv builder.sh log.patch impure-dirs.patch diffutils drv coreutils-7.2.drv bootstrap-gcc.drv prehook.sh builder.sh stdenv-linux-boot.drv nss-skip-unavail.patch glibc-2.9.drv locale-override.patch rpcgen-path.patch gcc-wrapper drv new-dtags.patch bootstrap-gcc.drv stdenv-linux-boot.drv pass-cxxcpp.patch builder.sh no-sys-dirs.patch linux tar.bz2.drv gnum drv gcc drv gmp drv mpfr drv glibc tar.bz2.drv binutils tar.bz2.drv mpfr tar.bz2.drv gmp tar.bz2.drv texinfo-4.13a.tar.lzma.drv ncurses-5.7.tar.gz.drv perl tar.gz.drv gcc-core tar.bz2.drv m tar.bz2.drv lzma tar.gz.drv sed tar.gz.drv gcc-g tar.bz2.drv bash drv attr_ tar.gz.drv bzip tar.gz.drv bash drv bash drv coreutils-7.2.tar.gz.drv bash drv bison-2.3.tar.bz2.drv bash drv bash-4.0.tar.gz.drv bash drv bash drv bash drv gettext-0.17.tar.gz.drv libtool-2.2.6a.tar.lzma.drv bash drv bash drv bash drv bash drv replace-2.24-src tar.gz.drv bash drv bash drv bash drv bash drv bash drv diffutils tar.gz.drv gawk tar.bz2.drv acl_ tar.gz.drv pcre-7.8.tar.bz2.drv grep tar.bz2.drv patch tar.gz.drv findutils tar.gz.drv patchelf-0.4.tar.bz2.drv make-3.81.tar.bz2.drv gzip tar.gz.drv bison-2.3.drv write-mirror-list.sh gcc-wrapper drv findutils-path.patch change_echo_path.patch findutils drv mirrors-list.drv perl drv stdenv-linux.drv hello-2.3.drv bash-4.0-p17.drv hello-2.3.tar.bz2.drv bzip2 mkdir curl.bz2 download.sh ln cpio sh openssl-0.9.8k.drv curl drv bootstrap-tools.cpio.bz2.drv connect-timeout.patch zlib drv unpack-bootstrap-tools.sh gnulib-futimens.patch gzip drv gnutar-1.22.drv implausible.patch mirrors-list.drv stdenv-linux-boot.drv builder.sh tar-1.22.tar.bz2.drv zlib tar.gz.drv openssl-0.9.8k.tar.gz.drv curl tar.bz2.drv build environment control with Nix... down to the compiler s compiler! build environment entirely under control 1 all the build inputs are known to Nix 1 Except for the kernel, the hardware, the direction of the wind, etc. L. Courtès Hydra: continuous integration for demanding people 56

58 hello, world! L. Courtès Hydra: continuous integration for demanding people 58

59 a job set L. Courtès Hydra: continuous integration for demanding people 59

60 writing a Hydra job set in Nix job set } { tarball =...; build =...; coverage =...; deb =...; job name L. Courtès Hydra: continuous integration for demanding people 60

61 writing a Hydra job set in Nix } { tarball =...; build =...; coverage =...; deb =...; make dist make && make check... make CFLAGS=--coverage... qemu... checkinstall... L. Courtès Hydra: continuous integration for demanding people 61

62 writing Hydra jobs in Nix parameters tarball = { nixpkgs, hellosrc } : function let pkgs = import nixpkgs { }; in pkgs.releasetools.sourcetarball { name = "hello"; src = hellosrc; }; L. Courtès Hydra: continuous integration for demanding people 62

63 writing Hydra jobs in Nix checkout of the distro checkout of Hello tarball = { nixpkgs, hellosrc } : let pkgs = import nixpkgs { }; in pkgs.releasetools.sourcetarball { name = "hello"; src = hellosrc; }; L. Courtès Hydra: continuous integration for demanding people 63

64 writing Hydra jobs in Nix result of tarball job x86 64-linux, or x86 64-darwin, etc. build = { nixpkgs, tarball, system } : let pkgs = import nixpkgs { inherit system; }; in pkgs.releasetools.nixbuild { name = "hello"; src = tarball; }; L. Courtès Hydra: continuous integration for demanding people 64

65 writing Hydra jobs in Nix build = { nixpkgs, tarball, system } : let pkgs = import nixpkgs { inherit system; }; in pkgs.releasetools.nixbuild { name = "hello"; explicit dependency src = tarball; buildinputs = [ pkgs.qt4 ]; hello }; qt4 L. Courtès Hydra: continuous integration for demanding people 65

66 writing Hydra jobs in Nix build = { nixpkgs, tarball, system } : let pkgs = import nixpkgs { inherit system; }; in pkgs.releasetools.nixbuild { name = "hello"; src = tarball; buildinputs = [ pkgs.qt4 ]; configureflags = "--with-colors"; }; L. Courtès Hydra: continuous integration for demanding people 66

67 writing Hydra jobs in Nix coverage = { nixpkgs, tarball, system } : let pkgs = import nixpkgs { inherit system; }; in pkgs.releasetools.coverageanalysis { name = "hello"; src = tarball; buildinputs = [ pkgs.qt4 ]; configureflags = "--with-colors"; }; L. Courtès Hydra: continuous integration for demanding people 67

68 writing Hydra jobs in Nix deb = { nixpkgs, tarball, system } : let pkgs = import nixpkgs { inherit system; }; in pkgs.releasetools.debbuild { name = "hello"; src = tarball; configureflags = "--with-colors"; diskimage = vmtools.diskimages.debian50x86 64; }; L. Courtès Hydra: continuous integration for demanding people 68

69 filling in the blanks... L. Courtès Hydra: continuous integration for demanding people 69

70 But Autotools suck, CMake rocks. Anonymous (and cavalier) attendee. L. Courtès Hydra: continuous integration for demanding people 70

71 building with CMake build = { system, nixpkgs, hellosrc }: let pkgs = import nixpkgs { inherit system; }; in pkgs.releasetools.nixbuild { name = "hello-cmake" ; src = hellosrc; cmakeflags = "-DFOO BAR=on"; buildinputs = [ pkgs.cmake pkgs.qt4 ]; }; L. Courtès Hydra: continuous integration for demanding people 71

72 All these C-ish things suck anyway; Java is the way. Anonymous attendee. L. Courtès Hydra: continuous integration for demanding people 72

73 building with Ant build = { nixpkgs, hellosrc }: let pkgs = import nixpkgs { }; in pkgs.releasetools.antbuild { name = "hello-ant" ; src = hellosrc; anttargets = [ "jar" "test" ]; buildinputs = with pkgs; [ ant jdk ]; }; L. Courtès Hydra: continuous integration for demanding people 73

74 building with Maven build = { nixpkgs, hellosrc }: let pkgs = import nixpkgs { }; in pkgs.releasetools.mvnbuild { name = "hello-maven" ; src = hellosrc; dojavadoc = true; docheckstyle = true; buildinputs = with pkgs; [ maven2 jdk ]; }; L. Courtès Hydra: continuous integration for demanding people 74

75 building things differently customize existing build functions (nixbuild, etc.) write your own build function L. Courtès Hydra: continuous integration for demanding people 75

76 building things differently customize existing build functions (nixbuild, etc.) define configureflags, makeflags, etc. define configurephase, buildphase, etc. (shell snippets)... write your own build function pythonbuild anyone? L. Courtès Hydra: continuous integration for demanding people 76

78 Continuous integration pacifies developers! L. Courtès Hydra: continuous integration for demanding people 78

79 summary Continuous integration pacifies developers! quick feedback to developers source + binaries + doc snapshots for users tests of various configurations L. Courtès Hydra: continuous integration for demanding people 79

80 summary Continuous integration pacifies developers! quick feedback to developers source + binaries + doc snapshots for users tests of various configurations available today! L. Courtès Hydra: continuous integration for demanding people 80

81 Inria: what s missing production-ready! L. Courtès Hydra: continuous integration for demanding people 81

82 Inria: what s missing not quite production-ready L. Courtès Hydra: continuous integration for demanding people 82

83 Inria: what s missing not quite production-ready no private/proprietary projects yet L. Courtès Hydra: continuous integration for demanding people 83

84 Inria: what s missing not quite production-ready no private/proprietary projects yet no GPUs, no webcams, no USB percolator (yet) L. Courtès Hydra: continuous integration for demanding people 84

85 Inria: what s missing not quite production-ready no private/proprietary projects yet no GPUs, no webcams, no USB percolator (yet) some of your dependencies might be missing L. Courtès Hydra: continuous integration for demanding people 85

86 Inria: what s missing not quite production-ready no private/proprietary projects yet no GPUs, no webcams, no USB percolator (yet) some of your dependencies might be missing no blame list, no favorite Jenkins plug-in here... L. Courtès Hydra: continuous integration for demanding people 86

87 Inria: what s already there small & growing compile farm: 12 x86 64 cores L. Courtès Hydra: continuous integration for demanding people 87

88 Inria: what s already there small & growing compile farm: 12 x86 64 cores GNU/Linux, MacOS X, and FreeBSD L. Courtès Hydra: continuous integration for demanding people 88

89 Inria: what s already there small & growing compile farm: 12 x86 64 cores GNU/Linux, MacOS X, and FreeBSD kernel & distributed tests in virtual machines virtual build environments: Debian, Fedora, opensuse, etc. L. Courtès Hydra: continuous integration for demanding people 89

90 Inria: what s already there small & growing compile farm: 12 x86 64 cores GNU/Linux, MacOS X, and FreeBSD kernel & distributed tests in virtual machines virtual build environments: Debian, Fedora, opensuse, etc. 6.5 projects being built (C/C++/Fortran, Autotools/CMake) L. Courtès Hydra: continuous integration for demanding people 90

91 Inria: what s already there small & growing compile farm: 12 x86 64 cores GNU/Linux, MacOS X, and FreeBSD kernel & distributed tests in virtual machines virtual build environments: Debian, Fedora, opensuse, etc. 6.5 projects being built (C/C++/Fortran, Autotools/CMake)... L. Courtès Hydra: continuous integration for demanding people 91

92 getting started 1. L. Courtès Hydra: continuous integration for demanding people 92

93 getting started add your recipes to L. Courtès Hydra: continuous integration for demanding people 93

94 getting started add your recipes to 3. watch your project at L. Courtès Hydra: continuous integration for demanding people 94

95 getting help copy/paste from read the fine manual at L. Courtès Hydra: continuous integration for demanding people 95

96