2 servers in the same process

two_servers.js

var opcua = require("node-opcua");
var path = require("path");

var port1 = 25000
var port2 = 25001

var standard_nodeset_file = opcua.standard_nodeset_file;

var rootFolder = path.join(__dirname,"./");


var server_certificate_file            = path.join(rootFolder, "certificates/server_cert_1024.pem");
var server_certificate_privatekey_file = path.join(rootFolder, "certificates/server_key_1024.pem");

var server_options1 = {
    certificateFile: server_certificate_file,
    privateKeyFile: server_certificate_privatekey_file,
    port: port1,
    nodeset_filename: [
        standard_nodeset_file
    ]
};

var server_options2 = {
    certificateFile: server_certificate_file,
    privateKeyFile: server_certificate_privatekey_file,
    port: port2,
    nodeset_filename: [
        standard_nodeset_file
    ]
};

process.title = "Node OPCUA Server on port : " + server_options1.port;

var server1 = new opcua.OPCUAServer(server_options1);

server1.on("post_initialize", function () {
    var addressSpace = server1.engine.addressSpace;
    var rootFolder = addressSpace.findNode("RootFolder");

    var node1 = addressSpace.addObject({
      browseName:"MySpecialObjectOnlyVisibleInServer1",
      organizedBy: rootFolder.objects
    });

});

server1.start(function (err) {
    if (err) {
        console.log(" Server failed to start ... exiting");
        process.exit(-3);
    }
    console.log("  server on port      :".yellow, server1.endpoints[0].port.toString().cyan);
});


var server2 = new opcua.OPCUAServer(server_options2);

server2.on("post_initialize", function () {
    var addressSpace = server2.engine.addressSpace;
    var rootFolder = addressSpace.findNode("RootFolder");

    var node1 = addressSpace.addObject({
      browseName:"MySpecialObjectOnlyVisibleInServer2",
      organizedBy: rootFolder.objects
    });

});
server2.start(function (err) {
    if (err) {
        console.log(" Server failed to start ... exiting");
        process.exit(-3);
    }
    console.log("  server on port      :".yellow, server2.endpoints[0].port.toString().cyan);
});