1 | This hierarchy contains Debian/Ubuntu-specific materials, also known |
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2 | as "Debathena". The contents are: |
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3 | |
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4 | * debathena - Debathena-specific software packages such as PAM and NSS |
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5 | modules. |
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6 | |
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7 | * config - Packages for configuring native system software in a manner |
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8 | appropriate for Athena. |
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9 | |
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10 | * meta - Packages which contain nothing but dependencies on other |
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11 | packages and serve as an installation convenience. |
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12 | |
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13 | * scripts - Build scripts and supporting materials. |
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14 | |
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15 | Debathena is a SIPB project, and its infrastructure and procedures |
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16 | will need to be adapted for Athena 10. For the moment this file will |
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17 | document the Debathena procedures as they are, not as they will be. |
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18 | The current procedures do not even use this svn repository yet. |
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19 | |
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20 | Debian software used by Debathena: |
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21 | |
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22 | * schroot - Used to manage build chroot environments for each |
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23 | Debian/Ubuntu version. We use the lvm-snapshot schroot type, |
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24 | which allows rapid construction of ephemeral copies of template |
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25 | "source" chroots, so that every binary package build is done in a |
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26 | clean environment. |
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27 | |
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28 | * debuild - Used to create Debian source packages from package |
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29 | source directories. |
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30 | |
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31 | * sbuild - Used to build binary packages from source packages inside |
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32 | schroot environments. |
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33 | |
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34 | * equivs - Used to create packages which only contain dependency |
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35 | information. Somewhat of a dirty hack, since it doesn't keep |
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36 | proper changelogs, but it reduces overhead. |
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37 | |
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38 | * CDBS (Common Debian Build System) - Referenced by debian/rules |
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39 | files in packages. Contains standard build rules to cut down on |
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40 | per-package boilerplate. |
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41 | |
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42 | * reprepro - Used to upload packages into the apt repositories. |
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43 | |
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44 | * approx - Used to create a local cache of Debian packages on the |
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45 | build server. This cache is referenced by the build chroots for |
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46 | improved performance. |
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47 | |
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48 | The remainder of this file documents procedures useful to Athena 10 |
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49 | developers and the release engineer. |
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50 | |
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51 | Developers: Preferences setup |
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52 | ----------------------------- |
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53 | |
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54 | You will probably want a $HOME/.devscripts file containing the |
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55 | following: |
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56 | |
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57 | DEBUILD_DPKG_BUILDPACKAGE_OPTS="-sa -us -uc -i -I.svn" |
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58 | |
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59 | This will save you from having to specify those options every time you |
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60 | run debuild. Athena 10 scripts do not assume the above preferences, |
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61 | but the instructions in this file do. The options mean: |
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62 | |
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63 | * Look for original source as a tarfile or create one. |
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64 | * Do not sign the source package. |
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65 | * Do not sign the changes file. |
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66 | * Ignore common version control metadata files when creating diffs. |
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67 | * Ignore .svn paths when creating tarballs. |
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68 | |
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69 | You will also want a $HOME/.sbuildrc file containing the following: |
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70 | |
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71 | $nolog = 1; |
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72 | $mailto = 'yourusername'; |
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73 | $log_dir = '/tmp/sbuild-logs'; |
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74 | $maintainer_name = 'Debathena Project <debathena@mit.edu>'; |
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75 | $force_orig_source = 1; |
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76 | $sbuild_mode = "user"; |
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77 | 1; |
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78 | |
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79 | You should also set the environment variable DEBATHENA_APT to |
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80 | "/afs/dev.mit.edu/system/athena10/apt". |
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81 | |
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82 | Developers: Preparing a change |
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83 | ------------------------------ |
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84 | |
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85 | To prepare a change to a regular package (a source tree containing a |
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86 | debian/ subdir), make the edits in a checkout and record a changelog |
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87 | entry. You can either edit debian/changelog using emacs changelog |
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88 | mode (C-c C-v to add a new version entry, C-c C-a to add a change |
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89 | entry, C-c C-f to finalize the entry) or you can run "dadch" from |
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90 | the debathena locker / SVN scripts directory. |
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91 | |
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92 | When creating a new version entry, bump the upstream version number |
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93 | (to 10.0.0 if it was not already that high) if you are changing the |
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94 | main package source. Otherwise, just bump the Debian version |
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95 | component (change 0debathena1 to 0debathena2, for instance). |
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96 | |
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97 | Developers: Building a package for test purposes on one platform |
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98 | ---------------------------------------------------------------- |
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99 | |
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100 | After you have prepared a change, you will want to test that it builds |
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101 | and perhaps that it works before committing it. First, if it is an |
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102 | Athena source directory using autoconf, run "daconfiscate" to set up |
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103 | the autoconf boilerplate which we don't check in. Second, run |
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104 | "daorig" to copy or create an orig tarball in the parent directory if |
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105 | necessary. Third, run "debuild". The resulting package will be |
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106 | placed in the parent directory. |
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107 | |
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108 | In order to test if the package works, you can install it with "dpkg |
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109 | -i filename.deb". |
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110 | |
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111 | Developers: Building a package for test purposes on all platforms |
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112 | ----------------------------------------------------------------- |
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113 | |
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114 | If the package you are working on interacts with the native OS in ways |
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115 | that might vary from platform to platform, you may want to do a test |
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116 | build for all platforms. You will need to do this on |
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117 | linux-build-10.mit.edu or another machine which has been set up with |
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118 | build schroots. |
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119 | |
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120 | As above, run daconfiscate (if necessary) and then daorig. Then run |
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121 | "debuild -S" to create a source package. Now cd into the parent |
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122 | directory and identify the .dsc file created by debuild -S; it will |
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123 | have a name like debathena-just_9.4.0-0debathena2.dsc. Run "da |
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124 | sbuildhack filename.dsc" to perform the package builds. Each build |
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125 | will take place inside an ephemeral chroot based on a snapshot of a |
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126 | template for a particular Debian or Ubuntu version. If a build fails |
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127 | and it's not obvious from the build log why, you may need to create |
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128 | your own ephemeral chroot session with a command like "schroot -c |
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129 | gutsy-amd64-sbuild /bin/sh" and then run debuild from within the |
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130 | package sources. |
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131 | |
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132 | If the build is successful, it will create a set of packages with |
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133 | names like debathena-just_9.4.0-0debathena2~ubuntu6.06_amd64.deb. |
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134 | |
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135 | Developers: Building an equivs package |
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136 | -------------------------------------- |
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137 | |
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138 | Most of the packages under debathena/meta are faked up using equivs. |
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139 | To build one, just run: |
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140 | |
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141 | equivs-build --full filename.equivs |
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142 | |
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143 | These equivs files make reference to ../common, so you must have a |
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144 | checkout of debathena/meta/common alongside the particular |
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145 | meta-package you are building. |
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146 | |
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147 | Developers: The meaning of metapackages |
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148 | --------------------------------------- |
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149 | |
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150 | If you are adding a new package to the repository, you will probably |
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151 | at some point want to add it to one of the metapackages so that it |
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152 | doesn't have to be installed by hand. Here are some descriptions |
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153 | which may help identify which metapackage is best: |
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154 | |
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155 | * locker: Provides access to Athena locker software--AFS and |
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156 | automounter configuration, locker-related utilities, etc. |
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157 | |
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158 | * clients: Provides clients (either locally-written, like athinfo and |
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159 | Discuss, or configurations) for Athena services, as well as |
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160 | Athena-specific utility programs like "jot". Configurations for |
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161 | graphical client software are generally in the workstation package |
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162 | instead, in order to make this package less intrusive. |
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163 | |
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164 | * standard: Implies locker and clients. Also provides Athena shell |
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165 | customizations and dotfiles. |
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166 | |
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167 | * login: Implies standard. Configurations to merge the MIT user |
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168 | namespace into the local machine namespace for the purpose of user |
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169 | lookups and authentication. |
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170 | |
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171 | * login-graphical: Implies login. Configurations for the graphical login |
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172 | system and graphical client software intended to provide a standard |
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173 | X login experience using Athena home directories. |
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174 | |
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175 | * extra-software: Implies a set of Debian packages common to cluster |
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176 | machines and typical workstations. The resulting software set is |
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177 | rather large, and thus may not be desirable to all workstation |
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178 | configurations. Only stock Debian packages belong in this |
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179 | metapackage; do not add other Debathena packages to it. |
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180 | |
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181 | * workstation: Implies login-graphical and extra-software. The use case |
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182 | is the same as that of the old "private workstations", so it includes |
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183 | more centrally-managed configuration than standard or login does |
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184 | (unattended updates, etc.). New as of May 2009. |
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185 | |
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186 | * thirdparty: Software supported by 3partysw that upstream Ubuntu |
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187 | already happens to be keeping up to date, and is therefore easier to |
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188 | install via packages than through lockers. This package is HUGE (1 GB of |
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189 | network traffic, 3 GB installed), and is also not strongly tested on |
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190 | Debian or on older releases of Ubuntu. |
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191 | |
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192 | * cluster: Implies workstation and thirdparty. Configures public cluster |
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193 | machines (login-time LVM snapshots, cleanups between logins, public |
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194 | root password, etc.). The snapshot code requires a particular LVM |
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195 | layout that the PXE (netboot) cluster installer sets up. |
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196 | |
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197 | * debian-dev: Intended for developers of the system itself; provides a |
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198 | set of Debian packages used by Debathena for development. |
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199 | |
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200 | For the most part a package should be listed in the "Depends:" line of |
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201 | a metapackage, but in some cases it is appropriate to hedge by using |
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202 | "Recommends:", which will cause aptitude to succeed even if the |
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203 | package is unavailable. For example, a package which doesn't exist in |
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204 | all Debian/Ubuntu suites or isn't free can be listed under |
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205 | "Recommends:" so that our metapackages still work in all environments. |
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206 | |
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207 | Developers: Index of cluster packages |
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208 | ------------------------------------- |
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209 | |
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210 | Some private workstation admins may want specific pieces of cluster |
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211 | infrastructure. With Athena 9.4, they would typically install the |
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212 | entire Athena software suite and then turn off features they did not |
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213 | want via /etc/athena/rc.conf. That is not generally possible in |
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214 | Athena 10; a debathena-cluster machine acts like a cluster machine in |
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215 | all respects. Instead, the machine owner should install |
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216 | debathena-workstation and then install specific packages they might be |
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217 | interested in. At this time, candidate packages include: |
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218 | |
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219 | * debathena-dns-config: Installs a caching DNS resolver and |
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220 | configures the machine to use it. |
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221 | |
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222 | * debathena-tmp-cleaner: Cleans files in /tmp and /var/tmp which |
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223 | have not been recently accessed. |
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224 | |
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225 | * debathena-reactivate: Causes each graphical login to be performed |
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226 | in a separate ephemeral snapshot of the chroot. This package |
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227 | requires the root filesystem to be an LVM logical volume inside a |
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228 | volume group with 21GB of free space for the snapshots; if that is |
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229 | not the case, it will break graphical logins. Install with care. |
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230 | |
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231 | * debathena-auto-update: Periodically updates the machine's software |
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232 | and reboots (when no one is logged in) if necessary. |
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233 | |
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234 | Cluster packages which are generally not of interest to private |
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235 | machine owners include: |
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236 | |
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237 | * debathena-cluster-login-config: Configures a variety of system |
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238 | services to implement the cluster login policy (no tty logins, no |
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239 | user switching, screensaver logout button after 20 minutes, etc.). |
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240 | |
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241 | * debathena-clusterinfo: Looks up the machine's cluster information |
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242 | in Hesiod and caches it on local disk. |
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243 | |
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244 | * debathena-larvnet: Reports to the central larvnet server whether |
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245 | anyone has a graphical login to the machine. |
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246 | |
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247 | * debathena-syslog-config: Configures sysklogd so that some syslog |
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248 | messages are forwarded to a central logging host. |
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249 | |
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250 | Release engineer: Bootstrapping the project infrastructure |
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251 | ---------------------------------------------------------- |
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252 | |
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253 | 1. Create the package repository (detailed instructions on this |
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254 | pending). Set the DEBATHENA_APT environment variable to point to |
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255 | the package repository. Put a copy of the debathena "scripts" |
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256 | subdir in your path. |
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257 | |
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258 | 2. Create the build area. |
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259 | |
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260 | 3. Run 'reprepro -Vb $DEBATHENA_APT export' to set up the repository. |
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261 | Build each equivs package under meta/ using 'equivs-build --full |
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262 | *.equivs' and upload each with 'daupload-equivs-proposed |
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263 | *.changes', followed by 'damove -proposed "" PACKAGE' (replacing |
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264 | PACKAGE with the name of each equivs package you are moving). |
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265 | |
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266 | 4. Set up the build server. The basic structure of the apt |
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267 | repository must work for make-chroot to succeed, so this must |
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268 | happen after step 3. |
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269 | |
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270 | 5. For each normal Debian package in dependency order, cd into its |
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271 | directory in the build area and run "da sbuildhack *.dsc" and |
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272 | "daupload-release *_source.changes". If the package contains |
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273 | only an "Architecture: all" binary package, pass the -A option to |
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274 | both commands. |
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275 | |
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276 | The all-packages script can generate an approximation of the |
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277 | package list in dependency order, but it doesn't work right yet, |
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278 | and ideally it would be possible to do several builds in parallel |
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279 | using a Makefile like the one in scripts/build-server/build-all. |
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280 | Improvements to this machinery are pending. |
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281 | |
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282 | 6. For each package under third, run "da ./debathenify-PKG source |
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283 | binary upload". Any created directories under third/openafs/meta |
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284 | should be chmodded 777 to work around a perl/AFS permissions |
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285 | issue with File::Temp; if this is not done, OpenAFS metapackage |
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286 | builds will fail for other users. |
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287 | |
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288 | Release engineer: Updating the apt repository |
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289 | --------------------------------------------- |
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290 | |
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291 | 1. ssh to the build server as the builder account and change to the |
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292 | canonical build directory. |
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293 | |
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294 | 2. Run "gen-packages" to update the package list. (Or "gen-packages |
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295 | -c" if you know the AFS checkout of the source tree is up to date; |
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296 | it should update every half hour.) |
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297 | |
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298 | 3. Run "ood-packages" to produce a list of out-of-date packages. |
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299 | |
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300 | 4. For each out of date package, run "dasource PKG". Then change to |
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301 | the package directory and run "da sbuildhack *.dsc" and |
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302 | "daupload-release *_source.changes". If the package contains |
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303 | only an "Architecture: all" binary package, pass the -A option to |
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304 | both commands. |
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305 | |
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306 | 5. svn update the meta directory. If there are new subdirectories, |
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307 | chmod them 777 to work around a perl/AFS permissions issue with |
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308 | File::Temp. For each updated subdir, change to it, run |
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309 | "equivs-build --full *.equivs", and then "daequivsupload |
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310 | FILENAME.changes" on the produced changes file. |
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311 | |
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312 | 6. svn update the third directory. You can let autodebathenify |
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313 | handle the updated scripts, or you can touch |
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314 | ~/autodebathenify.suppress, make sure it's not running, and run |
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315 | "da ./debathenify-PKG source binary upload" in each updated |
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316 | directory. |
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317 | |
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318 | Sometimes you may have to mix up the order of the above steps in order |
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319 | to handle build dependencies. |
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320 | |
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321 | Release engineer: Setting up a build server |
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322 | ------------------------------------------- |
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323 | |
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324 | 1. Install either Debian testing (or stable, if it's new enough, but |
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325 | see the note about sbuild below) or the latest Ubuntu release. |
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326 | The build server must be installed with free space in an LVM |
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327 | volume group. The build chroots consume 2GB each. |
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328 | |
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329 | 2. Install debathena-standard as per the the instructions in |
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330 | http://debathena.mit.edu/install. |
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331 | |
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332 | 3. apt-key add /afs/dev.mit.edu/system/athena10/apt/athena10-archive.asc |
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333 | |
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334 | 4. Install the packages listed in scripts/build-server/packages |
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335 | (using "aptitude install"). |
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336 | |
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337 | Note that currently the build system uses the latest version of |
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338 | sbuild, so if you have not installed Debian testing, you'll |
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339 | need to set up apt pinning to grab sbuild from there. See the |
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340 | apt_preferences man page. |
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341 | |
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342 | 5. Install debathena-standard, debathena-ssh-server, and |
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343 | debathena-build-depends (using "aptitude install"). |
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344 | |
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345 | (Depending on how recently debathena-build-depends was rebuilt, |
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346 | additional packages might need to be installed to satisfy the |
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347 | build-depends of newer packages. This can be taken care of later |
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348 | when an error occurs building a source package.) |
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349 | |
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350 | 6. Append to /etc/approx/approx.conf the contents of |
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351 | scripts/build-server/approx.conf.tail. |
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352 | Run: /etc/init.d/approx restart |
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353 | |
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354 | 7. Apply scripts/build-server/mount-defaults.patch. |
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355 | |
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356 | 8. Edit /etc/lvm/lvm.conf and change "archive = 1" to "archive = 0" |
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357 | in order to avoid generating a bazillion backup files under |
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358 | /etc/lvm/archive. |
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359 | |
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360 | 9. For each supported DIST (see scripts/debian-versions.sh) run: |
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361 | |
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362 | VG=/dev/blah scripts/build-server/make-chroot DIST i386 |
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363 | VG=/dev/blah scripts/build-server/make-chroot DIST amd64 |
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364 | |
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365 | substituting the name of the volume group for blah. |
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366 | |
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367 | Example: VG=/dev/dink scripts/build-server/make-chroot intrepid i386 |
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368 | |
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369 | 10. Create a local account for builder with: |
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370 | |
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371 | adduser --uid 1047 --disabled-password builder |
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372 | |
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373 | Make the home directory mode 700. Install a |
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374 | daemon/linux-build-10.mit.edu keytab in the home directory as |
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375 | "keytab". Install a copy of the secret repository-signing key |
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376 | (debathena@mit.edu) in the home directory's keyring with |
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377 | something like: |
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378 | |
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379 | kinit builder |
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380 | gpg --export-secret-keys athena10@mit.edu | \ |
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381 | ssh -l builder machinename gpg --import |
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382 | |
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383 | Create a file named .sbuildrc in builder's homedir containing: |
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384 | |
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385 | $nolog = 1; |
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386 | $mailto = 'source-wash@mit.edu'; |
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387 | $log_dir = '/tmp/sbuild-logs'; |
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388 | $maintainer_name = 'Debathena Project <debathena@mit.edu>'; |
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389 | $force_orig_source = 1; |
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390 | $sbuild_mode = "user"; |
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391 | 1; |
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392 | |
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393 | Create a file named .ssh/config in builder's homedir containing: |
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394 | |
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395 | Host svn.mit.edu |
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396 | User debuildsvn |
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397 | |
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398 | Add builder to the sbuild group in /etc/group. |
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399 | |
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400 | Copy scripts/build-server/autodebathenify to builder's homedir. |
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401 | Create a file named autodebathenify.config in builder's homedir |
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402 | containing: |
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403 | |
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404 | error_addr=source-wash@mit.edu |
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405 | scripts_dir=/afs/dev.mit.edu/source/src-svn/debathena/scripts |
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406 | build_dir=/afs/dev.mit.edu/project/release/10/build/third |
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407 | packages="cyrus-sasl2-mit evolution-data-server lprng openafs tcsh" |
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408 | export DEBATHENA_APT=/afs/dev.mit.edu/system/athena10/apt |
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409 | |
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410 | Copy scripts/build-server/autodebathenify.cron to builder's |
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411 | homedir and install it with "crontab autodebathenify.cron". |
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412 | |
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413 | Create a file named .devscripts in builder's homedir containing: |
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414 | |
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415 | DEBUILD_DPKG_BUILDPACKAGE_OPTS="-sa -us -uc -i -I.svn" |
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416 | |
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417 | In builder's homedir, append to .bashrc: |
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418 | |
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419 | add debathena |
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420 | export PATH=$PATH:~/bin |
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421 | export DEBATHENA_APT=/mit/debathena/apt |
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422 | |
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423 | |
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424 | Release engineer: Removing a build chroot on the build server |
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425 | ------------------------------------------------------------- |
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426 | |
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427 | 1. Run VG=/dev/blah scripts/clean-schroots as root to make sure that |
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428 | the build chroot is not mounted, substituting the name of the |
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429 | volume group for blah. |
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430 | |
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431 | 2. Edit /etc/schroot/schroot.conf and delete the section |
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432 | corresponding to the chroot. |
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433 | |
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434 | 3. Run lvchange -an blah/chrootname |
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435 | substituting the name of the volume group for blah and the chroot |
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436 | name for chroot. Example: lvchange -an dink/gutsy-i386-sbuild |
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437 | |
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438 | 4. Run lvremove blah/chrootname |
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439 | |
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440 | Release engineer: Removing a dist from the apt repository |
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441 | --------------------------------------------------------- |
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442 | |
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443 | 1. Inside the apt repository, edit conf/distributions and remove the |
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444 | distribution section. |
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445 | |
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446 | 2. Run reprepro -Vb $DEBATHENA_APT --delete clearvanished |
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447 | |
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448 | Release engineer: Setting up a canonical build area |
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449 | --------------------------------------------------- |
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450 | |
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451 | 1. Create an empty directory and cd into it. The canonical build |
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452 | area lives in /mit/debathena/packages/. |
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453 | |
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454 | 2. Run gen-packages to create the table of normal Debian packages. |
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455 | |
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456 | 3. Run dasource to create subdirs and source packages for each |
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457 | normal Debian package. |
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458 | |
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459 | 4. Create checkouts of the meta and third directories: |
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460 | |
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461 | svn co svn+ssh://svn.mit.edu/athena/trunk/debathena/meta |
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462 | svn co svn+ssh://svn.mit.edu/athena/trunk/debathena/third |
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463 | chmod 777 meta/* |
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464 | |
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465 | A couple of subdirectories of debathena/meta are normal Debian |
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466 | packages, so this will create redundant copies of those. Ignore |
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467 | them; they won't be used. |
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468 | |
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469 | Release engineer: Adding a new suite |
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470 | ------------------------------------ |
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471 | |
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472 | This process is rarely performed and the infrastructure for it is |
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473 | imperfect. Substitute the name of the new suite for "newdist" in all |
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474 | steps below. |
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475 | |
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476 | 1. Make sure the apt repository is up to date with respect to the |
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477 | source tree for the existing dists. |
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478 | |
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479 | 2. Add the new dist to scripts/debian-versions.sh. (It is not |
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480 | necessary to add the new dist to codes at this point, but it must |
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481 | be present in the gettag conditional.) |
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482 | |
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483 | 3. Create the new distribution in the apt repository's configuration |
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484 | file. Create the skeleton of the dist by running "reprepro -Vb |
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485 | $DEBATHENA_APT export". |
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486 | |
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487 | 4. On the build server, create a chroot for the new distribution as |
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488 | documented above. This may require downloading and installing a |
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489 | more recent version of the debootstrap package from the |
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490 | -backports dist corresponding to the build server's OS. |
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491 | |
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492 | 5. Set the DEBATHENA_BUILD_AREA environment variable to point to the |
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493 | build area. |
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494 | |
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495 | 6. Fire up screen. |
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496 | |
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497 | 7. mkdir $DEBATHENA_BUILD_AREA/stamps.newdist. |
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498 | |
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499 | 8. cd into a checkout of debathena/scripts/build-server/build-all. |
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500 | |
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501 | 9. Edit Makefile (and check in the edit) so that suite is the new |
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502 | distribution and psuite is the previously most recent Debian or |
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503 | Ubuntu distribution. |
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504 | |
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505 | 10. Run "make deps.mk". |
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506 | |
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507 | 11. Run "make -k all STAMPS=$DEBATHENA_BUILD_AREA/stamps.newdist". |
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508 | You can watch the builds happen in the other windows of the |
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509 | screen session. It's possible to do several builds at once with |
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510 | make -j N. |
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511 | |
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512 | 12. debathenify packages will fail out; they must be built by hand. |
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513 | When the build fails on one, cd into third/packagename in the |
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514 | build area and run "./debathenify newdist-amd64 -A source binary |
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515 | upload" and "./debathenify newdist-i386 binary upload". Then |
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516 | touch $DEBATHENA_BUILD_AREA/stamps.newdist/packagename.done" and |
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517 | restart the build. |
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518 | |
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519 | The newly created third/openafs/meta directories should be |
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520 | chmodded 777 to work around a perl/AFS permissions issue. |
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521 | |
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522 | Release engineer: Maintaining autodebathenify |
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523 | --------------------------------------------- |
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524 | |
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525 | autodebathenify is a cron job which runs on the builder account and |
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526 | keeps the OpenAFS modules and modified packages under debathena/third |
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527 | up to date when there are upstream changes. It relies on the |
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528 | following: |
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529 | |
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530 | * builder@ATHENA.MIT.EDU has access to a local account named |
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531 | debuildsvn on svn.mit.edu with read access to the athena |
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532 | repository. |
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533 | |
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534 | * builder@ATHENA.MIT.EDU has write access to the canonical build |
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535 | area and apt repository in the dev cell. |
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536 | |
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537 | * The builder account on the build machine has a copy of the signing |
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538 | private key for the apt repository. |
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539 | |
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540 | The cron job will silently exit if it detects that it is already |
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541 | running. If it fails for any other reason, it will send mail to |
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542 | source-wash@mit.edu and touch a file named autodebathenify.suppress |
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543 | which will prevent it from running again until manual intervention. |
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544 | It is important to get autodebathenify running smoothly or the apt |
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545 | repository will become out of date with respect to third-party |
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546 | packages, which in turn will compromise the user experience. |
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547 | |
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548 | Even if you don't notice failure mail, it's good to check on the |
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549 | status of autodebathenify from time to time. To do this, get tickets |
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550 | as builder and ssh to linux-build-10 as builder. Run "ls -l logs" to |
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551 | see what's been going on. A logfile with size around 48K indicates |
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552 | that autodebathenify ran normally but didn't find any new work to do. |
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553 | A logfile with size around 60 means that autodebathenify.suppress |
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554 | exists and the cron job has stopped running. A longer logfile |
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555 | indicates that autodebathenify attempted to build and upload a |
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556 | package. |
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557 | |
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558 | Possible failure cases include: |
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559 | |
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560 | * One of the upstream apt repositories timed out during an "apt-get |
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561 | update" of an sbuild chroot. If this happens, you can just remove |
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562 | the autodebathenify.suppress file to get the cron job to start |
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563 | running again. |
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564 | |
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565 | * autodebathenify tried to build an upstream version which already |
---|
566 | exists. If this happens, the build will fail at upload time. If |
---|
567 | this happens, there is a bug in the part of the debathenify-* |
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568 | script which checks whether our apt repository already has the |
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569 | expected version of the built package. |
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570 | |
---|
571 | * Debian and Ubuntu have .orig files with the same name but |
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572 | different contexts for a particular third-party package. This has |
---|
573 | only happened once, with bash (which is currently not configured |
---|
574 | into autodebathenify for that reason). We do not have a general |
---|
575 | mechanism for resolving such issues at this time. |
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576 | |
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577 | * The new upstream version of the package is sufficiently different |
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578 | to cause our modifications to fail to apply, and our debathenify-* |
---|
579 | script needs to be adapted appropriately. |
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580 | |
---|
581 | The cron job is run out of builder's home directory, but its canonical |
---|
582 | source location is in debathena/scripts/build-server in this |
---|
583 | repository, should it need to be modified. |
---|
584 | |
---|
585 | After several months of operation, LVM snapshots on the build server |
---|
586 | will start to become slower and slower, as /etc/lvm/cache/.cache grows |
---|
587 | in size. Turning off the cache entirely seems to cause schroot to |
---|
588 | occasionally fail; the current solution is to rm /etc/lvm/cache/.cache |
---|
589 | every so often. |
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590 | |
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591 | Release engineer: apt repository HTTP server setup |
---|
592 | -------------------------------------------------- |
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593 | |
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594 | The apt repository server (debathena.mit.edu) is hosted on |
---|
595 | scripts.mit.edu out of the debathena locker. To replicate it on a |
---|
596 | dedicated server, install Apache and AFS (e.g., debathena-standard |
---|
597 | and apache2), and configure the document root to be |
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598 | /mit/debathena/web_scripts |
---|
599 | |
---|
600 | There's also a crontab in /mit/debathena/cron_scripts that updates |
---|
601 | the package lists on the website. It expects to be able to edit the |
---|
602 | web_scripts directory; on scripts, it does so with daemon.scripts |
---|
603 | permissions. |
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604 | |
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605 | Trac (http://debathena.mit.edu/trac/) expects to use sql.mit.edu |
---|
606 | for its database. |
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