Exclude black box tests module from build when black box tests are not enabled.

@@ -34,7 +34,6 @@
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <main.dir>${basedir}/../..</main.dir>
-        <blackBoxTests.skip>true</blackBoxTests.skip>
         <testcontainers.version>1.11.4</testcontainers.version>
         <zeroturnaround.version>1.10</zeroturnaround.version>
         <httpclient.version>4.5.13</httpclient.version>

@@ -33,6 +33,8 @@
         <main.dir>${basedir}/..</main.dir>
         <docker.repo>thingsboard</docker.repo>
         <dockerfile.skip>true</dockerfile.skip>
+        <blackBoxTests.skip>true</blackBoxTests.skip>
+        <dockerfile-maven.version>1.4.13</dockerfile-maven.version>
     </properties>
 
     <modules>
@@ -41,15 +43,29 @@
         <module>web-ui</module>
         <module>tb-node</module>
         <module>transport</module>
-        <module>black-box-tests</module>
     </modules>
 
+    <profiles>
+        <profile>
+            <id>black-box-tests</id>
+            <activation>
+                <property>
+                    <name>blackBoxTests.skip</name>
+                    <value>false</value>
+                </property>
+            </activation>
+            <modules>
+                <module>black-box-tests</module>
+            </modules>
+        </profile>
+    </profiles>
+
     <build>
         <extensions>
             <extension>
                 <groupId>com.spotify</groupId>
                 <artifactId>dockerfile-maven-extension</artifactId>
-                <version>1.4.13</version>
+                <version>${dockerfile-maven.version}</version>
             </extension>
         </extensions>
         <pluginManagement>
@@ -57,7 +73,7 @@
                 <plugin>
                     <groupId>com.spotify</groupId>
                     <artifactId>dockerfile-maven-plugin</artifactId>
-                    <version>1.4.13</version>
+                    <version>${dockerfile-maven.version}</version>
                 </plugin>
             </plugins>
         </pluginManagement>