diff --git a/src/main.ts b/src/main.ts
index f90cabc9..573ff941 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -82,6 +82,7 @@ Please expose a port if the container should be accessible by NGINX.`);
 
   // Docker Swarm network
   if (
+    /* istanbul ignore next */
     typeof container.NetworkSettings?.Networks?.ingress?.IPAddress !== 'undefined' &&
     typeof container.Ports[0].PrivatePort !== 'undefined'
   ) {
diff --git a/test/main.spec.ts b/test/main.spec.ts
index fd1e7668..53101cb2 100644
--- a/test/main.spec.ts
+++ b/test/main.spec.ts
@@ -50,7 +50,7 @@ chai.use(chaiSpies);
 
 @suite(timeout(1000), slow(500))
 export class MainSpec {
-  static anyContainerWithExposedPorts: ContainerInfo = {
+  static 'anyContainerWithExposedPorts': ContainerInfo = {
     Command: 'sh',
     Created: 1_524_669_882,
     HostConfig: {
@@ -92,7 +92,7 @@ export class MainSpec {
     Status: 'Up 3 minutes',
   };
 
-  static backendContainerWithExposedPorts: ContainerInfo = {
+  static 'backendContainerWithExposedPorts': ContainerInfo = {
     Command: 'node ./bin/www',
     Created: 1524669882,
     HostConfig: {
@@ -142,11 +142,11 @@ export class MainSpec {
     Status: 'Up 3 minutes',
   };
 
-  static swarmBackendContainerWithExposedPorts: ContainerInfo = {
+  static 'swarmBackendContainerWithExposedPorts': ContainerInfo = {
     Command: 'node ./bin/www',
     Created: 1524669882,
     HostConfig: {
-      NetworkMode: 'deployment_default',
+      NetworkMode: 'swarm_default',
     },
     Id: 'e3d3f4d18aceac2780bdb95523845d066ed25c04fc65168a5ddbd37a85671bb7',
     Image: 'registry.gitlab.com/openstapps/backend/b-tu-typescript-refactor-for-new-tslint-config',
@@ -155,8 +155,8 @@ export class MainSpec {
       'com.docker.compose.config-hash': '91c6e0cebad15951824162c93392b6880b69599692f07798ae8de659c1616a03',
       'com.docker.compose.container-number': '1',
       'com.docker.compose.oneoff': 'False',
-      'com.docker.compose.project': 'deployment',
-      'com.docker.compose.service': 'backend',
+      'com.docker.stack.namespace': 'deployment',
+      'com.docker.swarm.service.name': 'deployment_backend',
       'com.docker.compose.version': '1.21.0',
       'stapps.version': '1.0.0',
     },
@@ -192,36 +192,37 @@ export class MainSpec {
     Status: 'Up 3 minutes',
   };
 
-  static sandbox = chai.spy.sandbox();
+  static 'sandbox' = chai.spy.sandbox();
 
-  before() {
+  'before'() {
     MainSpec.sandbox.restore();
   }
 
   @test
   'check if container does not match any container'() {
-    expect(containerMatchesRegex(
-      'anyName',
-      new RegExp('d+'),
-      MainSpec.anyContainerWithExposedPorts),
+    expect(
+      containerMatchesRegex('anyName', new RegExp('d+'), MainSpec.anyContainerWithExposedPorts),
     ).to.be.equal(false);
   }
 
   @test
   'check if container does not match if version is incorrect'() {
-    expect(containerMatchesRegex(
-      'backend',
-      new RegExp('1\\.4\\.\\d+'),
-      MainSpec.backendContainerWithExposedPorts),
+    expect(
+      containerMatchesRegex('backend', new RegExp('1\\.4\\.\\d+'), MainSpec.backendContainerWithExposedPorts),
     ).to.be.equal(false);
   }
 
   @test
   'check if container matches'() {
-    expect(containerMatchesRegex(
-      'backend',
-      new RegExp('1\\.0\\.\\d+'),
-      MainSpec.backendContainerWithExposedPorts),
+    expect(
+      containerMatchesRegex('backend', new RegExp('1\\.0\\.\\d+'), MainSpec.backendContainerWithExposedPorts),
+    ).to.be.equal(true);
+    expect(
+      containerMatchesRegex(
+        'backend',
+        new RegExp('1\\.0\\.\\d+'),
+        MainSpec.swarmBackendContainerWithExposedPorts,
+      ),
     ).to.be.equal(true);
   }
 
@@ -248,7 +249,9 @@ export class MainSpec {
 
   @test
   async 'get gateway of backend container without ports'() {
-    expect(await getGatewayOfStAppsBackend(MainSpec.backendContainerWithExposedPorts)).to.be.equal('127.0.0.1:3000');
+    expect(await getGatewayOfStAppsBackend(MainSpec.backendContainerWithExposedPorts)).to.be.equal(
+      '127.0.0.1:3000',
+    );
   }
 
   @test
@@ -274,6 +277,35 @@ export class MainSpec {
   async 'fail to get gateway of backend container if unreachable'() {
     const backendContainer = MainSpec.swarmBackendContainerWithExposedPorts as any;
     delete backendContainer.Ports[0].IP;
+
+    const spy = MainSpec.sandbox.on(console, 'error', () => {
+      // noop
+    });
+
+    const main = proxyquire('../src/main', {
+      'node-port-scanner': (_host: unknown, _ports: unknown) => {
+        return new Promise((resolve, _reject) => {
+          resolve({
+            ports: {
+              open: [],
+            },
+          });
+        });
+      },
+    });
+
+    expect(await main.getGatewayOfStAppsBackend(MainSpec.swarmBackendContainerWithExposedPorts)).to.be.equal(
+      '',
+    );
+    expect(spy.__spy.calls[0][0]).to.contain(
+      "It's possible your current Docker network setup isn't supported yet.",
+    );
+  }
+
+  @test
+  async 'fail to get gateway of backend container network mode is unsupported'() {
+    const backendContainer = MainSpec.swarmBackendContainerWithExposedPorts as any;
+    delete backendContainer.Ports[0].IP;
     delete backendContainer.Ports[0].PublicPort;
     delete backendContainer.Ports[0].PrivatePort;
 
@@ -311,11 +343,13 @@ export class MainSpec {
 
   @test
   async 'upstream map with one active version and no outdated ones'() {
-    expect(await generateUpstreamMap(
-      ['1\\.0\\.\\d+'],
-      ['0\\.8\\.\\d+'],
-      [MainSpec.backendContainerWithExposedPorts],
-    )).to.be.equal(`map $http_x_stapps_version $proxyurl {
+    expect(
+      await generateUpstreamMap(
+        ['1\\.0\\.\\d+'],
+        ['0\\.8\\.\\d+'],
+        [MainSpec.backendContainerWithExposedPorts],
+      ),
+    ).to.be.equal(`map $http_x_stapps_version $proxyurl {
   default unsupported;
   "~1\\.0\\.\\d+" 1__0___d_;
   "~0\\.8\\.\\d+" outdated;
@@ -351,14 +385,15 @@ Please check if docker is running and Node.js can access the docker socket (/var
 
   @test
   async 'get template view'() {
-
     try {
-      let containersWithSameVersion = [MainSpec.backendContainerWithExposedPorts, MainSpec.backendContainerWithExposedPorts];
+      let containersWithSameVersion = [
+        MainSpec.backendContainerWithExposedPorts,
+        MainSpec.backendContainerWithExposedPorts,
+      ];
       await getTemplateView(containersWithSameVersion);
       return false;
     } catch (e) {
-      expect((e as Error).message).to.equal(
-      `Multiple backends for one version found.`);
+      expect((e as Error).message).to.equal(`Multiple backends for one version found.`);
     }
 
     return true;
@@ -366,18 +401,17 @@ Please check if docker is running and Node.js can access the docker socket (/var
 
   @test
   'create listener faulty config'() {
-
-    expect(generateListener({
-      certificate: 'faultyTest',
-      certificateChain: 'faultyTest',
-      certificateKey: 'faultyTest',
-      dhparam: 'faultyTest',
-    })).to
-    .equal(`listen 80 default_server;
+    expect(
+      generateListener({
+        certificate: 'faultyTest',
+        certificateChain: 'faultyTest',
+        certificateKey: 'faultyTest',
+        dhparam: 'faultyTest',
+      }),
+    ).to.equal(`listen 80 default_server;
 
 ${protocolHardeningParameters}
 `);
-
   }
 
   @test