diff --git a/Jenkinsfile b/Jenkinsfile
index ce39fd0..3a39e94 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -36,16 +36,21 @@ pipeline {
 
      }
   }
-      post {
-          failure {
-              script {
-                  if (env.BRANCH_NAME == 'master')
-                      stage('notify master branch fail') {
-                          withCredentials([string(credentialsId: 'slack-token', variable: 'TOKEN')]) {
-                              sh '''curl -X POST -H 'Content-type: application/json' --data '{"text":"Attention! master branch push integration failed, Check $BUILD_URL"}' https://hooks.slack.com/services/${TOKEN}'''
-                      }
-                  }
-              }
-          }
-      }
+  post {
+    failure {
+        script {
+            if (env.BRANCH_NAME == 'master')
+                stage('notify master branch fail') {
+                    withCredentials([string(credentialsId: 'slack-token', variable: 'TOKEN')]) {
+                        script {
+                            def data = [text: "Attention! assisted-ignition-generator branch  test failed, see: ${BUILD_URL}"]
+                            writeJSON(file: 'data.txt', json: data, pretty: 4)
+                        }
+                        sh '''curl -X POST -H 'Content-type: application/json' --data-binary "@data.txt"  https://hooks.slack.com/services/$TOKEN'''
+
+                    }
+                }
+        }
+    }
+  }
 }
\ No newline at end of file
diff --git a/Makefile b/Makefile
index d6a6182..27ef6c7 100644
--- a/Makefile
+++ b/Makefile
@@ -7,7 +7,7 @@ build:
 	skipper build assisted-ignition-generator 
 
 build-image:
-	docker build -f Dockerfile.assisted-ignition-generator . -t $(GENERATOR)
+	docker build --network=host  -f Dockerfile.assisted-ignition-generator . -t $(GENERATOR)
 
 update: build
 	GIT_REVISION=${GIT_REVISION} docker build --pull --build-arg GIT_REVISION -t $(GENERATOR) -f Dockerfile.assisted-ignition-generator .