nixpkgs/nixos/modules/services/web-apps/hedgedoc.nix

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{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.hedgedoc;
# 21.03 will not be an official release - it was instead 21.05. This
# versionAtLeast statement remains set to 21.03 for backwards compatibility.
# See https://github.com/NixOS/nixpkgs/pull/108899 and
# https://github.com/NixOS/rfcs/blob/master/rfcs/0080-nixos-release-schedule.md.
name = if versionAtLeast config.system.stateVersion "21.03"
then "hedgedoc"
else "codimd";
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prettyJSON = conf:
pkgs.runCommandLocal "hedgedoc-config.json" {
nativeBuildInputs = [ pkgs.jq ];
} ''
echo '${builtins.toJSON conf}' | jq \
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'{production:del(.[]|nulls)|del(.[][]?|nulls)}' > $out
'';
in
{
imports = [
(mkRenamedOptionModule [ "services" "codimd" ] [ "services" "hedgedoc" ])
];
options.services.hedgedoc = {
enable = mkEnableOption "the HedgeDoc Markdown Editor";
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groups = mkOption {
type = types.listOf types.str;
default = [];
description = ''
Groups to which the user ${name} should be added.
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'';
};
workDir = mkOption {
type = types.path;
default = "/var/lib/${name}";
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description = ''
Working directory for the HedgeDoc service.
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'';
};
configuration = {
debug = mkEnableOption "debug mode";
domain = mkOption {
type = types.nullOr types.str;
default = null;
example = "hedgedoc.org";
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description = ''
Domain name for the HedgeDoc instance.
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'';
};
urlPath = mkOption {
type = types.nullOr types.str;
default = null;
example = "/url/path/to/hedgedoc";
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description = ''
Path under which HedgeDoc is accessible.
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'';
};
host = mkOption {
type = types.str;
default = "localhost";
description = ''
Address to listen on.
'';
};
port = mkOption {
type = types.int;
default = 3000;
example = "80";
description = ''
Port to listen on.
'';
};
path = mkOption {
type = types.nullOr types.str;
default = null;
example = "/run/hedgedoc.sock";
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description = ''
Specify where a UNIX domain socket should be placed.
'';
};
allowOrigin = mkOption {
type = types.listOf types.str;
default = [];
example = [ "localhost" "hedgedoc.org" ];
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description = ''
List of domains to whitelist.
'';
};
useSSL = mkOption {
type = types.bool;
default = false;
description = ''
Enable to use SSL server. This will also enable
<option>protocolUseSSL</option>.
'';
};
hsts = {
enable = mkOption {
type = types.bool;
default = true;
description = ''
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Whether to enable HSTS if HTTPS is also enabled.
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'';
};
maxAgeSeconds = mkOption {
type = types.int;
default = 31536000;
description = ''
Max duration for clients to keep the HSTS status.
'';
};
includeSubdomains = mkOption {
type = types.bool;
default = true;
description = ''
Whether to include subdomains in HSTS.
'';
};
preload = mkOption {
type = types.bool;
default = true;
description = ''
Whether to allow preloading of the site's HSTS status.
'';
};
};
csp = mkOption {
type = types.nullOr types.attrs;
default = null;
example = literalExample ''
{
enable = true;
directives = {
scriptSrc = "trustworthy.scripts.example.com";
};
upgradeInsecureRequest = "auto";
addDefaults = true;
}
'';
description = ''
Specify the Content Security Policy which is passed to Helmet.
For configuration details see <link xlink:href="https://helmetjs.github.io/docs/csp/"
>https://helmetjs.github.io/docs/csp/</link>.
'';
};
protocolUseSSL = mkOption {
type = types.bool;
default = false;
description = ''
Enable to use TLS for resource paths.
This only applies when <option>domain</option> is set.
'';
};
urlAddPort = mkOption {
type = types.bool;
default = false;
description = ''
Enable to add the port to callback URLs.
This only applies when <option>domain</option> is set
and only for ports other than 80 and 443.
'';
};
useCDN = mkOption {
type = types.bool;
default = false;
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description = ''
Whether to use CDN resources or not.
'';
};
allowAnonymous = mkOption {
type = types.bool;
default = true;
description = ''
Whether to allow anonymous usage.
'';
};
allowAnonymousEdits = mkOption {
type = types.bool;
default = false;
description = ''
Whether to allow guests to edit existing notes with the `freely' permission,
when <option>allowAnonymous</option> is enabled.
'';
};
allowFreeURL = mkOption {
type = types.bool;
default = false;
description = ''
Whether to allow note creation by accessing a nonexistent note URL.
'';
};
defaultPermission = mkOption {
type = types.enum [ "freely" "editable" "limited" "locked" "private" ];
default = "editable";
description = ''
Default permissions for notes.
This only applies for signed-in users.
'';
};
dbURL = mkOption {
type = types.nullOr types.str;
default = null;
example = ''
postgres://user:pass@host:5432/dbname
'';
description = ''
Specify which database to use.
HedgeDoc supports mysql, postgres, sqlite and mssql.
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See <link xlink:href="https://sequelize.readthedocs.io/en/v3/">
https://sequelize.readthedocs.io/en/v3/</link> for more information.
Note: This option overrides <option>db</option>.
'';
};
db = mkOption {
type = types.attrs;
default = {};
example = literalExample ''
{
dialect = "sqlite";
storage = "/var/lib/${name}/db.${name}.sqlite";
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}
'';
description = ''
Specify the configuration for sequelize.
HedgeDoc supports mysql, postgres, sqlite and mssql.
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See <link xlink:href="https://sequelize.readthedocs.io/en/v3/">
https://sequelize.readthedocs.io/en/v3/</link> for more information.
Note: This option overrides <option>db</option>.
'';
};
sslKeyPath= mkOption {
type = types.nullOr types.str;
default = null;
example = "/var/lib/hedgedoc/hedgedoc.key";
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description = ''
Path to the SSL key. Needed when <option>useSSL</option> is enabled.
'';
};
sslCertPath = mkOption {
type = types.nullOr types.str;
default = null;
example = "/var/lib/hedgedoc/hedgedoc.crt";
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description = ''
Path to the SSL cert. Needed when <option>useSSL</option> is enabled.
'';
};
sslCAPath = mkOption {
type = types.listOf types.str;
default = [];
example = [ "/var/lib/hedgedoc/ca.crt" ];
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description = ''
SSL ca chain. Needed when <option>useSSL</option> is enabled.
'';
};
dhParamPath = mkOption {
type = types.nullOr types.str;
default = null;
example = "/var/lib/hedgedoc/dhparam.pem";
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description = ''
Path to the SSL dh params. Needed when <option>useSSL</option> is enabled.
'';
};
tmpPath = mkOption {
type = types.str;
default = "/tmp";
description = ''
Path to the temp directory HedgeDoc should use.
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Note that <option>serviceConfig.PrivateTmp</option> is enabled for
the HedgeDoc systemd service by default.
(Non-canonical paths are relative to HedgeDoc's base directory)
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'';
};
defaultNotePath = mkOption {
type = types.nullOr types.str;
default = "./public/default.md";
description = ''
Path to the default Note file.
(Non-canonical paths are relative to HedgeDoc's base directory)
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'';
};
docsPath = mkOption {
type = types.nullOr types.str;
default = "./public/docs";
description = ''
Path to the docs directory.
(Non-canonical paths are relative to HedgeDoc's base directory)
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'';
};
indexPath = mkOption {
type = types.nullOr types.str;
default = "./public/views/index.ejs";
description = ''
Path to the index template file.
(Non-canonical paths are relative to HedgeDoc's base directory)
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'';
};
hackmdPath = mkOption {
type = types.nullOr types.str;
default = "./public/views/hackmd.ejs";
description = ''
Path to the hackmd template file.
(Non-canonical paths are relative to HedgeDoc's base directory)
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'';
};
errorPath = mkOption {
type = types.nullOr types.str;
default = null;
defaultText = "./public/views/error.ejs";
description = ''
Path to the error template file.
(Non-canonical paths are relative to HedgeDoc's base directory)
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'';
};
prettyPath = mkOption {
type = types.nullOr types.str;
default = null;
defaultText = "./public/views/pretty.ejs";
description = ''
Path to the pretty template file.
(Non-canonical paths are relative to HedgeDoc's base directory)
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'';
};
slidePath = mkOption {
type = types.nullOr types.str;
default = null;
defaultText = "./public/views/slide.hbs";
description = ''
Path to the slide template file.
(Non-canonical paths are relative to HedgeDoc's base directory)
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'';
};
uploadsPath = mkOption {
type = types.str;
default = "${cfg.workDir}/uploads";
defaultText = "/var/lib/${name}/uploads";
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description = ''
Path under which uploaded files are saved.
'';
};
sessionName = mkOption {
type = types.str;
default = "connect.sid";
description = ''
Specify the name of the session cookie.
'';
};
sessionSecret = mkOption {
type = types.nullOr types.str;
default = null;
description = ''
Specify the secret used to sign the session cookie.
If unset, one will be generated on startup.
'';
};
sessionLife = mkOption {
type = types.int;
default = 1209600000;
description = ''
Session life time in milliseconds.
'';
};
heartbeatInterval = mkOption {
type = types.int;
default = 5000;
description = ''
Specify the socket.io heartbeat interval.
'';
};
heartbeatTimeout = mkOption {
type = types.int;
default = 10000;
description = ''
Specify the socket.io heartbeat timeout.
'';
};
documentMaxLength = mkOption {
type = types.int;
default = 100000;
description = ''
Specify the maximum document length.
'';
};
email = mkOption {
type = types.bool;
default = true;
description = ''
Whether to enable email sign-in.
'';
};
allowEmailRegister = mkOption {
type = types.bool;
default = true;
description = ''
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Whether to enable email registration.
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'';
};
allowGravatar = mkOption {
type = types.bool;
default = true;
description = ''
Whether to use gravatar as profile picture source.
'';
};
imageUploadType = mkOption {
type = types.enum [ "imgur" "s3" "minio" "filesystem" ];
default = "filesystem";
description = ''
Specify where to upload images.
'';
};
minio = mkOption {
type = types.nullOr (types.submodule {
options = {
accessKey = mkOption {
type = types.str;
description = ''
Minio access key.
'';
};
secretKey = mkOption {
type = types.str;
description = ''
Minio secret key.
'';
};
endpoint = mkOption {
type = types.str;
description = ''
Minio endpoint.
'';
};
port = mkOption {
type = types.int;
default = 9000;
description = ''
Minio listen port.
'';
};
secure = mkOption {
type = types.bool;
default = true;
description = ''
Whether to use HTTPS for Minio.
'';
};
};
});
default = null;
description = "Configure the minio third-party integration.";
};
s3 = mkOption {
type = types.nullOr (types.submodule {
options = {
accessKeyId = mkOption {
type = types.str;
description = ''
AWS access key id.
'';
};
secretAccessKey = mkOption {
type = types.str;
description = ''
AWS access key.
'';
};
region = mkOption {
type = types.str;
description = ''
AWS S3 region.
'';
};
};
});
default = null;
description = "Configure the s3 third-party integration.";
};
s3bucket = mkOption {
type = types.nullOr types.str;
default = null;
description = ''
Specify the bucket name for upload types <literal>s3</literal> and <literal>minio</literal>.
'';
};
allowPDFExport = mkOption {
type = types.bool;
default = true;
description = ''
Whether to enable PDF exports.
'';
};
imgur.clientId = mkOption {
type = types.nullOr types.str;
default = null;
description = ''
Imgur API client ID.
'';
};
azure = mkOption {
type = types.nullOr (types.submodule {
options = {
connectionString = mkOption {
type = types.str;
description = ''
Azure Blob Storage connection string.
'';
};
container = mkOption {
type = types.str;
description = ''
Azure Blob Storage container name.
It will be created if non-existent.
'';
};
};
});
default = null;
description = "Configure the azure third-party integration.";
};
oauth2 = mkOption {
type = types.nullOr (types.submodule {
options = {
authorizationURL = mkOption {
type = types.str;
description = ''
Specify the OAuth authorization URL.
'';
};
tokenURL = mkOption {
type = types.str;
description = ''
Specify the OAuth token URL.
'';
};
clientID = mkOption {
type = types.str;
description = ''
Specify the OAuth client ID.
'';
};
clientSecret = mkOption {
type = types.str;
description = ''
Specify the OAuth client secret.
'';
};
};
});
default = null;
description = "Configure the OAuth integration.";
};
facebook = mkOption {
type = types.nullOr (types.submodule {
options = {
clientID = mkOption {
type = types.str;
description = ''
Facebook API client ID.
'';
};
clientSecret = mkOption {
type = types.str;
description = ''
Facebook API client secret.
'';
};
};
});
default = null;
description = "Configure the facebook third-party integration";
};
twitter = mkOption {
type = types.nullOr (types.submodule {
options = {
consumerKey = mkOption {
type = types.str;
description = ''
Twitter API consumer key.
'';
};
consumerSecret = mkOption {
type = types.str;
description = ''
Twitter API consumer secret.
'';
};
};
});
default = null;
description = "Configure the Twitter third-party integration.";
};
github = mkOption {
type = types.nullOr (types.submodule {
options = {
clientID = mkOption {
type = types.str;
description = ''
GitHub API client ID.
'';
};
clientSecret = mkOption {
type = types.str;
description = ''
Github API client secret.
'';
};
};
});
default = null;
description = "Configure the GitHub third-party integration.";
};
gitlab = mkOption {
type = types.nullOr (types.submodule {
options = {
baseURL = mkOption {
type = types.str;
default = "";
description = ''
GitLab API authentication endpoint.
Only needed for other endpoints than gitlab.com.
'';
};
clientID = mkOption {
type = types.str;
description = ''
GitLab API client ID.
'';
};
clientSecret = mkOption {
type = types.str;
description = ''
GitLab API client secret.
'';
};
scope = mkOption {
type = types.enum [ "api" "read_user" ];
default = "api";
description = ''
GitLab API requested scope.
GitLab snippet import/export requires api scope.
'';
};
};
});
default = null;
description = "Configure the GitLab third-party integration.";
};
mattermost = mkOption {
type = types.nullOr (types.submodule {
options = {
baseURL = mkOption {
type = types.str;
description = ''
Mattermost authentication endpoint.
'';
};
clientID = mkOption {
type = types.str;
description = ''
Mattermost API client ID.
'';
};
clientSecret = mkOption {
type = types.str;
description = ''
Mattermost API client secret.
'';
};
};
});
default = null;
description = "Configure the Mattermost third-party integration.";
};
dropbox = mkOption {
type = types.nullOr (types.submodule {
options = {
clientID = mkOption {
type = types.str;
description = ''
Dropbox API client ID.
'';
};
clientSecret = mkOption {
type = types.str;
description = ''
Dropbox API client secret.
'';
};
appKey = mkOption {
type = types.str;
description = ''
Dropbox app key.
'';
};
};
});
default = null;
description = "Configure the Dropbox third-party integration.";
};
google = mkOption {
type = types.nullOr (types.submodule {
options = {
clientID = mkOption {
type = types.str;
description = ''
Google API client ID.
'';
};
clientSecret = mkOption {
type = types.str;
description = ''
Google API client secret.
'';
};
};
});
default = null;
description = "Configure the Google third-party integration.";
};
ldap = mkOption {
type = types.nullOr (types.submodule {
options = {
providerName = mkOption {
type = types.str;
default = "";
description = ''
Optional name to be displayed at login form, indicating the LDAP provider.
'';
};
url = mkOption {
type = types.str;
example = "ldap://localhost";
description = ''
URL of LDAP server.
'';
};
bindDn = mkOption {
type = types.str;
description = ''
Bind DN for LDAP access.
'';
};
bindCredentials = mkOption {
type = types.str;
description = ''
Bind credentials for LDAP access.
'';
};
searchBase = mkOption {
type = types.str;
example = "o=users,dc=example,dc=com";
description = ''
LDAP directory to begin search from.
'';
};
searchFilter = mkOption {
type = types.str;
example = "(uid={{username}})";
description = ''
LDAP filter to search with.
'';
};
searchAttributes = mkOption {
type = types.listOf types.str;
example = [ "displayName" "mail" ];
description = ''
LDAP attributes to search with.
'';
};
userNameField = mkOption {
type = types.str;
default = "";
description = ''
LDAP field which is used as the username on HedgeDoc.
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By default <option>useridField</option> is used.
'';
};
useridField = mkOption {
type = types.str;
example = "uid";
description = ''
LDAP field which is a unique identifier for users on HedgeDoc.
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'';
};
tlsca = mkOption {
type = types.str;
example = "server-cert.pem,root.pem";
description = ''
Root CA for LDAP TLS in PEM format.
'';
};
};
});
default = null;
description = "Configure the LDAP integration.";
};
saml = mkOption {
type = types.nullOr (types.submodule {
options = {
idpSsoUrl = mkOption {
type = types.str;
example = "https://idp.example.com/sso";
description = ''
IdP authentication endpoint.
'';
};
idpCert = mkOption {
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type = types.path;
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example = "/path/to/cert.pem";
description = ''
Path to IdP certificate file in PEM format.
'';
};
issuer = mkOption {
type = types.str;
default = "";
description = ''
Optional identity of the service provider.
This defaults to the server URL.
'';
};
identifierFormat = mkOption {
type = types.str;
default = "urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress";
description = ''
Optional name identifier format.
'';
};
groupAttribute = mkOption {
type = types.str;
default = "";
example = "memberOf";
description = ''
Optional attribute name for group list.
'';
};
externalGroups = mkOption {
type = types.listOf types.str;
default = [];
example = [ "Temporary-staff" "External-users" ];
description = ''
Excluded group names.
'';
};
requiredGroups = mkOption {
type = types.listOf types.str;
default = [];
example = [ "Hedgedoc-Users" ];
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description = ''
Required group names.
'';
};
attribute = {
id = mkOption {
type = types.str;
default = "";
description = ''
Attribute map for `id'.
Defaults to `NameID' of SAML response.
'';
};
username = mkOption {
type = types.str;
default = "";
description = ''
Attribute map for `username'.
Defaults to `NameID' of SAML response.
'';
};
email = mkOption {
type = types.str;
default = "";
description = ''
Attribute map for `email'.
Defaults to `NameID' of SAML response if
<option>identifierFormat</option> has
the default value.
'';
};
};
};
});
default = null;
description = "Configure the SAML integration.";
};
};
environmentFile = mkOption {
type = with types; nullOr path;
default = null;
example = "/var/lib/hedgedoc/hedgedoc.env";
description = ''
Environment file as defined in <citerefentry>
<refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum>
</citerefentry>.
Secrets may be passed to the service without adding them to the world-readable
Nix store, by specifying placeholder variables as the option value in Nix and
setting these variables accordingly in the environment file.
<programlisting>
# snippet of HedgeDoc-related config
services.hedgedoc.configuration.dbURL = "postgres://hedgedoc:\''${DB_PASSWORD}@db-host:5432/hedgedocdb";
services.hedgedoc.configuration.minio.secretKey = "$MINIO_SECRET_KEY";
</programlisting>
<programlisting>
# content of the environment file
DB_PASSWORD=verysecretdbpassword
MINIO_SECRET_KEY=verysecretminiokey
</programlisting>
Note that this file needs to be available on the host on which
<literal>HedgeDoc</literal> is running.
'';
};
package = mkOption {
type = types.package;
default = pkgs.hedgedoc;
description = ''
Package that provides HedgeDoc.
'';
};
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};
config = mkIf cfg.enable {
assertions = [
{ assertion = cfg.configuration.db == {} -> (
cfg.configuration.dbURL != "" && cfg.configuration.dbURL != null
);
message = "Database configuration for HedgeDoc missing."; }
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];
users.groups.${name} = {};
users.users.${name} = {
description = "HedgeDoc service user";
group = name;
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extraGroups = cfg.groups;
home = cfg.workDir;
createHome = true;
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isSystemUser = true;
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};
systemd.services.hedgedoc = {
description = "HedgeDoc Service";
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wantedBy = [ "multi-user.target" ];
after = [ "networking.target" ];
preStart = ''
${pkgs.envsubst}/bin/envsubst \
-o ${cfg.workDir}/config.json \
-i ${prettyJSON cfg.configuration}
'';
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serviceConfig = {
WorkingDirectory = cfg.workDir;
ExecStart = "${cfg.package}/bin/hedgedoc";
EnvironmentFile = mkIf (cfg.environmentFile != null) [ cfg.environmentFile ];
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Environment = [
"CMD_CONFIG_FILE=${cfg.workDir}/config.json"
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"NODE_ENV=production"
];
Restart = "always";
User = name;
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PrivateTmp = true;
};
};
};
}