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nixpkgs/nixos/modules/services/web-apps/nifi.nix
pennae 2e751c0772 treewide: automatically md-convert option descriptions
the conversion procedure is simple:

 - find all things that look like options, ie calls to either `mkOption`
   or `lib.mkOption` that take an attrset. remember the attrset as the
   option
 - for all options, find a `description` attribute who's value is not a
   call to `mdDoc` or `lib.mdDoc`
 - textually convert the entire value of the attribute to MD with a few
   simple regexes (the set from mdize-module.sh)
 - if the change produced a change in the manual output, discard
 - if the change kept the manual unchanged, add some text to the
   description to make sure we've actually found an option. if the
   manual changes this time, keep the converted description

this procedure converts 80% of nixos options to markdown. around 2000
options remain to be inspected, but most of those fail the "does not
change the manual output check": currently the MD conversion process
does not faithfully convert docbook tags like <code> and <package>, so
any option using such tags will not be converted at all.
2022-07-30 15:16:34 +02:00

319 lines
14 KiB
Nix

{ lib, pkgs, config, options, ... }:
let
cfg = config.services.nifi;
opt = options.services.nifi;
env = {
NIFI_OVERRIDE_NIFIENV = "true";
NIFI_HOME = "/var/lib/nifi";
NIFI_PID_DIR = "/run/nifi";
NIFI_LOG_DIR = "/var/log/nifi";
};
envFile = pkgs.writeText "nifi.env" (lib.concatMapStrings (s: s + "\n") (
(lib.concatLists (lib.mapAttrsToList (name: value:
if value != null then [
"${name}=\"${toString value}\""
] else []
) env))));
nifiEnv = pkgs.writeShellScriptBin "nifi-env" ''
set -a
source "${envFile}"
eval -- "\$@"
'';
in {
options = {
services.nifi = {
enable = lib.mkEnableOption "Apache NiFi";
package = lib.mkOption {
type = lib.types.package;
default = pkgs.nifi;
defaultText = lib.literalExpression "pkgs.nifi";
description = lib.mdDoc "Apache NiFi package to use.";
};
user = lib.mkOption {
type = lib.types.str;
default = "nifi";
description = lib.mdDoc "User account where Apache NiFi runs.";
};
group = lib.mkOption {
type = lib.types.str;
default = "nifi";
description = lib.mdDoc "Group account where Apache NiFi runs.";
};
enableHTTPS = lib.mkOption {
type = lib.types.bool;
default = true;
description = lib.mdDoc "Enable HTTPS protocol. Don`t use in production.";
};
listenHost = lib.mkOption {
type = lib.types.str;
default = if cfg.enableHTTPS then "0.0.0.0" else "127.0.0.1";
defaultText = lib.literalExpression ''
if config.${opt.enableHTTPS}
then "0.0.0.0"
else "127.0.0.1"
'';
description = lib.mdDoc "Bind to an ip for Apache NiFi web-ui.";
};
listenPort = lib.mkOption {
type = lib.types.int;
default = if cfg.enableHTTPS then 8443 else 8080;
defaultText = lib.literalExpression ''
if config.${opt.enableHTTPS}
then "8443"
else "8000"
'';
description = lib.mdDoc "Bind to a port for Apache NiFi web-ui.";
};
proxyHost = lib.mkOption {
type = lib.types.nullOr lib.types.str;
default = if cfg.enableHTTPS then "0.0.0.0" else null;
defaultText = lib.literalExpression ''
if config.${opt.enableHTTPS}
then "0.0.0.0"
else null
'';
description = lib.mdDoc "Allow requests from a specific host.";
};
proxyPort = lib.mkOption {
type = lib.types.nullOr lib.types.int;
default = if cfg.enableHTTPS then 8443 else null;
defaultText = lib.literalExpression ''
if config.${opt.enableHTTPS}
then "8443"
else null
'';
description = lib.mdDoc "Allow requests from a specific port.";
};
initUser = lib.mkOption {
type = lib.types.nullOr lib.types.str;
default = null;
description = lib.mdDoc "Initial user account for Apache NiFi. Username must be at least 4 characters.";
};
initPasswordFile = lib.mkOption {
type = lib.types.nullOr lib.types.path;
default = null;
example = "/run/keys/nifi/password-nifi";
description = lib.mdDoc "nitial password for Apache NiFi. Password must be at least 12 characters.";
};
initJavaHeapSize = lib.mkOption {
type = lib.types.nullOr lib.types.int;
default = null;
example = 1024;
description = lib.mdDoc "Set the initial heap size for the JVM in MB.";
};
maxJavaHeapSize = lib.mkOption {
type = lib.types.nullOr lib.types.int;
default = null;
example = 2048;
description = lib.mdDoc "Set the initial heap size for the JVM in MB.";
};
};
};
config = lib.mkIf cfg.enable {
assertions = [
{ assertion = cfg.initUser!=null || cfg.initPasswordFile==null;
message = ''
<option>services.nifi.initUser</option> needs to be set if <option>services.nifi.initPasswordFile</option> enabled.
'';
}
{ assertion = cfg.initUser==null || cfg.initPasswordFile!=null;
message = ''
<option>services.nifi.initPasswordFile</option> needs to be set if <option>services.nifi.initUser</option> enabled.
'';
}
{ assertion = cfg.proxyHost==null || cfg.proxyPort!=null;
message = ''
<option>services.nifi.proxyPort</option> needs to be set if <option>services.nifi.proxyHost</option> value specified.
'';
}
{ assertion = cfg.proxyHost!=null || cfg.proxyPort==null;
message = ''
<option>services.nifi.proxyHost</option> needs to be set if <option>services.nifi.proxyPort</option> value specified.
'';
}
{ assertion = cfg.initJavaHeapSize==null || cfg.maxJavaHeapSize!=null;
message = ''
<option>services.nifi.maxJavaHeapSize</option> needs to be set if <option>services.nifi.initJavaHeapSize</option> value specified.
'';
}
{ assertion = cfg.initJavaHeapSize!=null || cfg.maxJavaHeapSize==null;
message = ''
<option>services.nifi.initJavaHeapSize</option> needs to be set if <option>services.nifi.maxJavaHeapSize</option> value specified.
'';
}
];
warnings = lib.optional (cfg.enableHTTPS==false) ''
Please do not disable HTTPS mode in production. In this mode, access to the nifi is opened without authentication.
'';
systemd.tmpfiles.rules = [
"d '/var/lib/nifi/conf' 0750 ${cfg.user} ${cfg.group}"
"L+ '/var/lib/nifi/lib' - - - - ${cfg.package}/lib"
];
systemd.services.nifi = {
description = "Apache NiFi";
after = [ "network.target" ];
wantedBy = [ "multi-user.target" ];
environment = env;
path = [ pkgs.gawk ];
serviceConfig = {
Type = "forking";
PIDFile = "/run/nifi/nifi.pid";
ExecStartPre = pkgs.writeScript "nifi-pre-start.sh" ''
#!/bin/sh
umask 077
test -f '/var/lib/nifi/conf/authorizers.xml' || (cp '${cfg.package}/share/nifi/conf/authorizers.xml' '/var/lib/nifi/conf/' && chmod 0640 '/var/lib/nifi/conf/authorizers.xml')
test -f '/var/lib/nifi/conf/bootstrap.conf' || (cp '${cfg.package}/share/nifi/conf/bootstrap.conf' '/var/lib/nifi/conf/' && chmod 0640 '/var/lib/nifi/conf/bootstrap.conf')
test -f '/var/lib/nifi/conf/bootstrap-hashicorp-vault.conf' || (cp '${cfg.package}/share/nifi/conf/bootstrap-hashicorp-vault.conf' '/var/lib/nifi/conf/' && chmod 0640 '/var/lib/nifi/conf/bootstrap-hashicorp-vault.conf')
test -f '/var/lib/nifi/conf/bootstrap-notification-services.xml' || (cp '${cfg.package}/share/nifi/conf/bootstrap-notification-services.xml' '/var/lib/nifi/conf/' && chmod 0640 '/var/lib/nifi/conf/bootstrap-notification-services.xml')
test -f '/var/lib/nifi/conf/logback.xml' || (cp '${cfg.package}/share/nifi/conf/logback.xml' '/var/lib/nifi/conf/' && chmod 0640 '/var/lib/nifi/conf/logback.xml')
test -f '/var/lib/nifi/conf/login-identity-providers.xml' || (cp '${cfg.package}/share/nifi/conf/login-identity-providers.xml' '/var/lib/nifi/conf/' && chmod 0640 '/var/lib/nifi/conf/login-identity-providers.xml')
test -f '/var/lib/nifi/conf/nifi.properties' || (cp '${cfg.package}/share/nifi/conf/nifi.properties' '/var/lib/nifi/conf/' && chmod 0640 '/var/lib/nifi/conf/nifi.properties')
test -f '/var/lib/nifi/conf/stateless-logback.xml' || (cp '${cfg.package}/share/nifi/conf/stateless-logback.xml' '/var/lib/nifi/conf/' && chmod 0640 '/var/lib/nifi/conf/stateless-logback.xml')
test -f '/var/lib/nifi/conf/stateless.properties' || (cp '${cfg.package}/share/nifi/conf/stateless.properties' '/var/lib/nifi/conf/' && chmod 0640 '/var/lib/nifi/conf/stateless.properties')
test -f '/var/lib/nifi/conf/state-management.xml' || (cp '${cfg.package}/share/nifi/conf/state-management.xml' '/var/lib/nifi/conf/' && chmod 0640 '/var/lib/nifi/conf/state-management.xml')
test -f '/var/lib/nifi/conf/zookeeper.properties' || (cp '${cfg.package}/share/nifi/conf/zookeeper.properties' '/var/lib/nifi/conf/' && chmod 0640 '/var/lib/nifi/conf/zookeeper.properties')
test -d '/var/lib/nifi/docs/html' || (mkdir -p /var/lib/nifi/docs && cp -r '${cfg.package}/share/nifi/docs/html' '/var/lib/nifi/docs/html')
${lib.optionalString ((cfg.initUser != null) && (cfg.initPasswordFile != null)) ''
awk -F'[<|>]' '/property name="Username"/ {if ($3!="") f=1} END{exit !f}' /var/lib/nifi/conf/login-identity-providers.xml || ${cfg.package}/bin/nifi.sh set-single-user-credentials ${cfg.initUser} $(cat ${cfg.initPasswordFile})
''}
${lib.optionalString (cfg.enableHTTPS == false) ''
sed -i /var/lib/nifi/conf/nifi.properties \
-e 's|nifi.remote.input.secure=.*|nifi.remote.input.secure=false|g' \
-e 's|nifi.web.http.host=.*|nifi.web.http.host=${cfg.listenHost}|g' \
-e 's|nifi.web.http.port=.*|nifi.web.http.port=${(toString cfg.listenPort)}|g' \
-e 's|nifi.web.https.host=.*|nifi.web.https.host=|g' \
-e 's|nifi.web.https.port=.*|nifi.web.https.port=|g' \
-e 's|nifi.security.keystore=.*|nifi.security.keystore=|g' \
-e 's|nifi.security.keystoreType=.*|nifi.security.keystoreType=|g' \
-e 's|nifi.security.truststore=.*|nifi.security.truststore=|g' \
-e 's|nifi.security.truststoreType=.*|nifi.security.truststoreType=|g' \
-e '/nifi.security.keystorePasswd/s|^|#|' \
-e '/nifi.security.keyPasswd/s|^|#|' \
-e '/nifi.security.truststorePasswd/s|^|#|'
''}
${lib.optionalString (cfg.enableHTTPS == true) ''
sed -i /var/lib/nifi/conf/nifi.properties \
-e 's|nifi.remote.input.secure=.*|nifi.remote.input.secure=true|g' \
-e 's|nifi.web.http.host=.*|nifi.web.http.host=|g' \
-e 's|nifi.web.http.port=.*|nifi.web.http.port=|g' \
-e 's|nifi.web.https.host=.*|nifi.web.https.host=${cfg.listenHost}|g' \
-e 's|nifi.web.https.port=.*|nifi.web.https.port=${(toString cfg.listenPort)}|g' \
-e 's|nifi.security.keystore=.*|nifi.security.keystore=./conf/keystore.p12|g' \
-e 's|nifi.security.keystoreType=.*|nifi.security.keystoreType=PKCS12|g' \
-e 's|nifi.security.truststore=.*|nifi.security.truststore=./conf/truststore.p12|g' \
-e 's|nifi.security.truststoreType=.*|nifi.security.truststoreType=PKCS12|g' \
-e '/nifi.security.keystorePasswd/s|^#\+||' \
-e '/nifi.security.keyPasswd/s|^#\+||' \
-e '/nifi.security.truststorePasswd/s|^#\+||'
''}
${lib.optionalString ((cfg.enableHTTPS == true) && (cfg.proxyHost != null) && (cfg.proxyPort != null)) ''
sed -i /var/lib/nifi/conf/nifi.properties \
-e 's|nifi.web.proxy.host=.*|nifi.web.proxy.host=${cfg.proxyHost}:${(toString cfg.proxyPort)}|g'
''}
${lib.optionalString ((cfg.enableHTTPS == false) || (cfg.proxyHost == null) && (cfg.proxyPort == null)) ''
sed -i /var/lib/nifi/conf/nifi.properties \
-e 's|nifi.web.proxy.host=.*|nifi.web.proxy.host=|g'
''}
${lib.optionalString ((cfg.initJavaHeapSize != null) && (cfg.maxJavaHeapSize != null))''
sed -i /var/lib/nifi/conf/bootstrap.conf \
-e 's|java.arg.2=.*|java.arg.2=-Xms${(toString cfg.initJavaHeapSize)}m|g' \
-e 's|java.arg.3=.*|java.arg.3=-Xmx${(toString cfg.maxJavaHeapSize)}m|g'
''}
${lib.optionalString ((cfg.initJavaHeapSize == null) && (cfg.maxJavaHeapSize == null))''
sed -i /var/lib/nifi/conf/bootstrap.conf \
-e 's|java.arg.2=.*|java.arg.2=-Xms512m|g' \
-e 's|java.arg.3=.*|java.arg.3=-Xmx512m|g'
''}
'';
ExecStart = "${cfg.package}/bin/nifi.sh start";
ExecStop = "${cfg.package}/bin/nifi.sh stop";
# User and group
User = cfg.user;
Group = cfg.group;
# Runtime directory and mode
RuntimeDirectory = "nifi";
RuntimeDirectoryMode = "0750";
# State directory and mode
StateDirectory = "nifi";
StateDirectoryMode = "0750";
# Logs directory and mode
LogsDirectory = "nifi";
LogsDirectoryMode = "0750";
# Proc filesystem
ProcSubset = "pid";
ProtectProc = "invisible";
# Access write directories
ReadWritePaths = [ cfg.initPasswordFile ];
UMask = "0027";
# Capabilities
CapabilityBoundingSet = "";
# Security
NoNewPrivileges = true;
# Sandboxing
ProtectSystem = "strict";
ProtectHome = true;
PrivateTmp = true;
PrivateDevices = true;
PrivateIPC = true;
PrivateUsers = true;
ProtectHostname = true;
ProtectClock = true;
ProtectKernelTunables = true;
ProtectKernelModules = true;
ProtectKernelLogs = true;
ProtectControlGroups = true;
RestrictAddressFamilies = [ "AF_INET AF_INET6" ];
RestrictNamespaces = true;
LockPersonality = true;
MemoryDenyWriteExecute = false;
RestrictRealtime = true;
RestrictSUIDSGID = true;
RemoveIPC = true;
PrivateMounts = true;
# System Call Filtering
SystemCallArchitectures = "native";
SystemCallFilter = [ "~@cpu-emulation @debug @keyring @memlock @mount @obsolete @resources @privileged @setuid" "@chown" ];
};
};
users.users = lib.mkMerge [
(lib.mkIf (cfg.user == "nifi") {
nifi = {
group = cfg.group;
isSystemUser = true;
home = cfg.package;
};
})
(lib.attrsets.setAttrByPath [ cfg.user "packages" ] [ cfg.package nifiEnv ])
];
users.groups = lib.optionalAttrs (cfg.group == "nifi") {
nifi = { };
};
};
}