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|
{ 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 "${envFile}"
eval -- "\$@"
'';
in {
options = {
services.nifi = {
enable = lib.mkEnableOption (lib.mdDoc "Apache NiFi");
package = lib.mkOption {
type = lib.types.package;
default = pkgs.nifi;
defaultText = lib.literalExpression "pkgs.nifi";
description = lib.mdDoc "Apache NiFi package to use.";
};
user = lib.mkOption {
type = lib.types.str;
default = "nifi";
description = lib.mdDoc "User account where Apache NiFi runs.";
};
group = lib.mkOption {
type = lib.types.str;
default = "nifi";
description = lib.mdDoc "Group account where Apache NiFi runs.";
};
enableHTTPS = lib.mkOption {
type = lib.types.bool;
default = true;
description = lib.mdDoc "Enable HTTPS protocol. Don`t use in production.";
};
listenHost = lib.mkOption {
type = lib.types.str;
default = if cfg.enableHTTPS then "0.0.0.0" else "127.0.0.1";
defaultText = lib.literalExpression ''
if config.${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 = { };
};
};
}
|