jenkins file added

Jenkinsfile

@@ -0,0 +1,25 @@
+pipeline {
+    agent any
+    options {
+        ansiColor('xterm')
+    }
+    stages {
+        stage('Docker build & publish') {
+            steps {
+                script {
+                    dockerImage = docker.build "docker.fg/flowguard/fluent"
+
+                    bn = env.BUILD_NUMBER
+                    gitVersion = sh(script: 'git describe --tags --always', returnStdout: true).toString().trim()
+                    currentBuild.displayName = "#${bn}:${gitVersion}"
+
+                    if (env.BRANCH_NAME == "master") {
+                        dockerImage.push("latest")
+                    } else {
+                        dockerImage.push(gitVersion)
+                    }
+                }
+            }
+        }
+    }
+}