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nixpkgs/modules/services/web-servers/tomcat.nix

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{pkgs, config, ...}:
###### interface
let
inherit (pkgs.lib) mkOption mkIf;
options = {
services = {
tomcat = {
enable = mkOption {
default = false;
description = "Whether to enable Apache Tomcat";
};
baseDir = mkOption {
default = "/var/tomcat";
description = "Location where Tomcat stores configuration files, webapplications and logfiles";
};
user = mkOption {
default = "tomcat";
description = "User account under which Apache Tomcat runs.";
};
deployFrom = mkOption {
default = "";
description = "Location where webapplications are stored. Leave empty to use the baseDir.";
};
javaOpts = mkOption {
default = "";
description = "Parameters to pass to the Java Virtual Machine which spawns Apache Tomcat";
};
catalinaOpts = mkOption {
default = "";
description = "Parameters to pass to the Java Virtual Machine which spawns the Catalina servlet container";
};
sharedLibFrom = mkOption {
default = "";
description = "Location where shared libraries are stored. Leave empty to use the baseDir.";
};
commonLibFrom = mkOption {
default = "";
description = "Location where common libraries are stored. Leave empty to use the baseDir.";
};
contextXML = mkOption {
default = "";
description = "Location of the context.xml to use. Leave empty to use the default.";
};
};
};
};
in
###### implementation
let
cfg = config.services.tomcat;
in
mkIf config.services.tomcat.enable {
require = [
options
];
services = {
extraJobs = [{
name = "tomcat";
groups = [
{ name = "tomcat";
gid = config.ids.gids.tomcat;
}
];
users = [
{ name = "tomcat";
uid = config.ids.uids.tomcat;
description = "Tomcat user";
home = "/homeless-shelter";
}
];
job = ''
description "Apache Tomcat server"
start on network-interface/started
stop on network-interfaces/stop
start script
# Create initial state data
if ! test -d ${cfg.baseDir}
then
mkdir -p ${cfg.baseDir}/webapps
mkdir -p ${cfg.baseDir}/shared
mkdir -p ${cfg.baseDir}/lib
cp -av ${pkgs.tomcat6}/{conf,temp,logs} ${cfg.baseDir}
fi
# Deploy context.xml
if test "${cfg.contextXML}" = ""
then
cp ${pkgs.tomcat6}/conf/context.xml.default ${cfg.baseDir}/conf/context.xml
else
cp ${cfg.contextXML} ${cfg.baseDir}/conf/context.xml
fi
# Deploy all webapplications
if ! test "${cfg.deployFrom}" = ""
then
rm -rf ${cfg.baseDir}/webapps
mkdir -p ${cfg.baseDir}/webapps
for i in ${cfg.deployFrom}/*
do
cp -rL $i ${cfg.baseDir}/webapps
done
fi
# Fix permissions
chown -R ${cfg.user} ${cfg.baseDir}
for i in `find ${cfg.baseDir} -type d`
do
chmod -v 755 $i
done
for i in `find ${cfg.baseDir} -type f`
do
chmod -v 644 $i
done
# Deploy all common libraries
rm -rf ${cfg.baseDir}/lib/*
if test "${cfg.commonLibFrom}" = ""
then
commonLibFrom="${pkgs.tomcat6}/lib";
else
commonLibFrom="${cfg.commonLibFrom}";
fi
for i in $commonLibFrom/*.jar
do
ln -s $i ${cfg.baseDir}/lib
done
# Deploy all shared libraries
if ! test "${cfg.sharedLibFrom}" = ""
then
rm -f ${cfg.baseDir}/shared/lib
ln -s ${cfg.sharedLibFrom} ${cfg.baseDir}/shared/lib
fi
end script
respawn ${pkgs.su}/bin/su -s ${pkgs.bash}/bin/sh ${cfg.user} -c 'CATALINA_BASE=${cfg.baseDir} JAVA_HOME=${pkgs.jdk} JAVA_OPTS="${cfg.javaOpts}" CATALINA_OPTS="${cfg.catalinaOpts}" ${pkgs.tomcat6}/bin/startup.sh; sleep 1000d'
stop script
echo "Stopping tomcat..."
CATALINA_BASE=${cfg.baseDir} JAVA_HOME=${pkgs.jdk} ${pkgs.su}/bin/su -s ${pkgs.bash}/bin/sh ${cfg.user} -c ${pkgs.tomcat6}/bin/shutdown.sh
end script
'';
}];
};
}