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|
{ config, lib, pkgs, ... }:
let
inherit (builtins)
attrNames isBool isString ;
inherit (lib)
concatMapStringsSep concatStringsSep escape filterAttrs foldAttrs foldl
hasPrefix mapAttrs mapAttrsToList mkOption nameValuePair optionalString
unique ;
inherit (lib.types)
attrsOf submodule ;
explicit = filterAttrs (n: v: n != "_module" && v != null);
instances = explicit config.nixsap.apps.jenkins;
users = mapAttrsToList (_: i: i.user) instances;
maybeFile = n: c: if hasPrefix "/" c then c else pkgs.writeXML n c;
configFiles = name: cfg: mapAttrs (n: v: maybeFile "jenkins-${name}-${n}" v) cfg.config;
jobFiles = name: cfg: mapAttrs (n: v: maybeFile "jenkins-${name}-job-${n}.xml" v) cfg.jobs;
keyrings =
let
# This requires read-write mode of evaluation:
keys = n: i: import (pkgs.xinclude2nix (
(mapAttrsToList (_: f: f) (configFiles n i))
++ (unique (mapAttrsToList (_: f: f) (jobFiles n i)))
));
ik = mapAttrsToList (n: i: { "${i.user}" = keys n i; } ) instances;
in foldAttrs (l: r: l ++ r) [] ik;
mkService = name: cfg:
let
mkOpt = n: v: if isBool v then (if v then "--${n}" else "")
else if isString v then "--${n}='${v}'"
else "--${n}=${toString v}";
path = ".war.path";
tmpdir = "${cfg.home}/tmp";
startJenkins = pkgs.writeBashScript "jenkins-${name}-start" ''
set -euo pipefail
umask 0027
export HOME='${cfg.home}'
cd '${cfg.home}'
find . -maxdepth 1 \( \
-iname '*.xml' \
-o -iname '*.bak' \
-o -iname '*.log' \
-o -iname '*.tmp' \
-o -iname '*.txt' \
\) -delete
${concatStringsSep "\n" (
mapAttrsToList (n: p:
# XXX Jenkins does not support XInclude
# XXX We use XInclude to include secret files (keys)
''
${pkgs.libxml2}/bin/xmllint --xinclude --format '${p}' > '${n}'
'') (configFiles name cfg)
)}
if [ -d jobs ]; then
find jobs -maxdepth 1 -mindepth 1 -type d \
${concatMapStringsSep " " (k: "-not -name '${escape [ "[" ] k}'") (attrNames cfg.jobs)} \
-print0 | xargs -0 --verbose --no-run-if-empty rm -rf
fi
${concatStringsSep "\n" (
mapAttrsToList (n: p: ''
mkdir -p -- 'jobs/${n}'
rm -rf -- 'jobs/${n}/config.xml'
${pkgs.libxml2}/bin/xmllint --xinclude --format '${p}' > 'jobs/${n}/config.xml'
'') (jobFiles name cfg)
)}
if [ -f ${path} ]; then
old=$(cat ${path})
else
old=
fi
# FIXME: make sure old content is flushed
if [ '${cfg.war}' != "$old" ]; then
rm -rf war plugins
echo '${cfg.war}' > ${path}
fi
rm -rf -- '${tmpdir}'
mkdir -p -- '${tmpdir}'
exec ${cfg.jre}/bin/java \
-DJENKINS_HOME='${cfg.home}' \
-Djava.io.tmpdir='${tmpdir}' \
-jar '${cfg.war}' \
${concatStringsSep " \\\n " (
mapAttrsToList mkOpt (explicit cfg.options))}
'';
in {
"jenkins-${name}" = {
description = "Jenkins (${name}) automation server";
wantedBy = [ "multi-user.target" ];
after = [ "keys.target" "network.target" "local-fs.target" ];
inherit (cfg) path;
preStart = ''
mkdir -p -- '${cfg.home}'
# XXX ignore potentially dangling symlinks
# XXX like lastStable -> builds/lastStableBuild.
# XXX chmod/chown fail on them
find '${cfg.home}' -not -type l \( \
-not -user '${cfg.user}' \
-or -not -group '${cfg.user}' \
-or \( -type d -not -perm -u=wrx,g=rx \) \
-or \( -type f -not -perm -u=rw,g=r \) \
\) \
-exec chown -c -- '${cfg.user}:${cfg.user}' {} + \
-exec chmod -c -- u=rwX,g=rX,o= {} +
'';
serviceConfig = {
ExecStart = startJenkins;
KillMode = "mixed";
PermissionsStartOnly = true;
Restart = "always";
TimeoutSec = 0;
User = cfg.user;
};
};
};
in {
options.nixsap.apps.jenkins = mkOption {
description = "Jenkins instances";
default = {};
type = attrsOf (submodule (import ./instance.nix pkgs));
};
config = {
systemd.services = foldl (a: b: a//b) {} (mapAttrsToList mkService instances);
nixsap.deployment.keyrings = keyrings;
nixsap.system.users.daemons = users;
};
}
|
