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joinmarket-ob-watcher: use DynamicUser

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DynamicUser simplifies services that don't need a persistent uid/gid,
like joinmarket-ob-watcher.

For existing installations the data dir migration to dynamic users
is automatically handled by systemd.
This commit is contained in:
Erik Arvstedt 2021-02-01 22:53:19 +01:00
parent e9c98f415c
commit 9d0b8c8f6f
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GPG Key ID: 33312B944DD97846
1 changed files with 3 additions and 17 deletions
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20
modules/joinmarket-ob-watcher.nix
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@ -46,16 +46,6 @@ in {
default = "/var/lib/joinmarket-ob-watcher"; default = "/var/lib/joinmarket-ob-watcher";
description = "The data directory for JoinMarket orderbook watcher."; description = "The data directory for JoinMarket orderbook watcher.";
}; };
user = mkOption {
type = types.str;
default = "joinmarket-ob-watcher";
description = "The user as which to run JoinMarket orderbook watcher.";
};
group = mkOption {
type = types.str;
default = cfg.user;
description = "The group as which to run JoinMarket orderbook watcher.";
};
# This option is only used by netns-isolation # This option is only used by netns-isolation
enforceTor = mkOption { enforceTor = mkOption {
readOnly = true; readOnly = true;
@ -73,10 +63,13 @@ in {
wantedBy = [ "multi-user.target" ]; wantedBy = [ "multi-user.target" ];
requires = [ "tor.service" ]; requires = [ "tor.service" ];
after = [ "tor.service" ]; after = [ "tor.service" ];
# The service writes to HOME/.config/matplotlib
environment.HOME = cfg.dataDir;
preStart = '' preStart = ''
ln -snf ${configFile} ${cfg.dataDir}/joinmarket.cfg ln -snf ${configFile} ${cfg.dataDir}/joinmarket.cfg
''; '';
serviceConfig = nbLib.defaultHardening // rec { serviceConfig = nbLib.defaultHardening // rec {
DynamicUser = true;
StateDirectory = "joinmarket-ob-watcher"; StateDirectory = "joinmarket-ob-watcher";
StateDirectoryMode = "0770"; StateDirectoryMode = "0770";
WorkingDirectory = cfg.dataDir; # The service creates dir 'logs' in the working dir WorkingDirectory = cfg.dataDir; # The service creates dir 'logs' in the working dir
@ -84,16 +77,9 @@ in {
${nbPkgs.joinmarket}/bin/ob-watcher --datadir=${cfg.dataDir} \ ${nbPkgs.joinmarket}/bin/ob-watcher --datadir=${cfg.dataDir} \
--host=${cfg.address} --port=${toString cfg.port} --host=${cfg.address} --port=${toString cfg.port}
''; '';
User = cfg.user;
Restart = "on-failure"; Restart = "on-failure";
RestartSec = "10s"; RestartSec = "10s";
} // nbLib.allowTor; } // nbLib.allowTor;
}; };
users.users.${cfg.user} = {
group = cfg.group;
home = cfg.dataDir; # The service writes to HOME/.config/matplotlib
};
users.groups.${cfg.group} = {};
}; };
} }